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USER MANUAL

1. Switch off computer after mosaic is built Allows to setup computer automatic switch off after completion of mosaic creation PHOTOMOD Geomosaic exit affirmation Allows to show a prompt on confirmation of exit from the program when user tries to close main program window Use saved mosaic settings Allows to load mosaic settings saved by choosing the Mosaic Save parameters preferences during the program start Full cache size Allows to set limit to general cache size for all im ages on default 256 Mb Restrict cache size from Allows to set max images number when cache size is 5 Mb per image otherwise the cache size has limited to 0 5 Mb per image Maximal number of simultaneously opened im ages Allows to set limit on the opened images number in the formats JPEG NIFF IMG PIX in the case of a lot of images it is recommended to convert the images files to the TIFF format files Correct cloud topology when saving clouds layer Allows to correct topology errors of vector polygons automatically on layer Cloud while it is saving Fast building without background analyzing Allows to build fast mosaic without transparency of input background color Add to project images with same names Allows to add images with the same names which store in different folders 14 1 Preview parameters Perform the following actions to setup mosaic visualization options in the P
2. 51 PHOTOMOD 5 3 GeoMosaic 11 2 3 Automatic mode measurement of points The automatic mode implies the automatic searching of tie points using correlator on all block images of project in the vicinity of cutlines If necessary set the correlator parameters before the start working Choose the Ties Add tie points Add automat ically for start automatic measuring of tie points or click the wr button of the Tie points toolbar View the stitching quality in the Preview window and if necessary edit the tie points measurements see Section 11 3 11 2 4 Measuring of tie points in the distributed processing mode The Distributed processing mode provides time saving while cutlines creation by making optimal use the hardware computing capacity This mode is recommended to use in case of large volume of source images in the mosaic project Perform the following actions for measuring points in the vicinity of cutlines in the dis tributed processing mode 1 Define the structure and role of the workstations to participate in distributed pro cessing Detailed description of distributed processing mode organizing see in PHOTOMOD System User Manual 2 Choose the Ties Add tie points Add in distributed mode The Points measure parameters window open 3 Define the values of automatic points collection and correlator parameters see description of parameters in Section 11 5 Click OK The Ties points distributed processing windo
3. Cartesian Right Local right Cartesian reference system Select Orientation right geo referencing local coordinate system Fig 29 Mosaic parameters window 13 1 1 Mosaic s main parameters If you would like to setup main options of mosaic building choose the Mosaic gt Para meters or click the 44 button The Mosaic parameters window opens Click the Mosaic tab Table 21 Description of options on the Mosaic tab Parameter Description Cell size Allows to specify the size of output mosaic cell on Background color the terrain The cell size by default is equal to the cell size of the first image of mosaic project The Calculate button opens a dialog used to set a mo saic size in pixels and recalculate its cell size accord ingly Allows to set a color for mosaic background since output mosaic always inscribes into a rectangular raster shape The Transparent mosaic back ground on preview parameter influences on background color of mosaic in the Preview window see Section 14 1 Resampling method Allows to choose the brightness interpolation mode during orthomosaic creation bilinear cubic or nearest neighbor 62 PHOTOMOD 5 3 GeoMosaic Parameter Shift background color Description Allows to specify a shift of color on the image if this color coincides with defined color of mosaic s background Fill background out of sheet boundaries Allows to s
4. GeoMosaic Table 5 Setting of images background color and transparency Images background color White background color of source images Actions Choose the Images Transparent background color White The block of images in the Preview window will be updated considering the transparency setting applied to the white background Black background color of source images Choose the Images Transparent background color Black The block of images in the Preview window will be updated considering the transparency setting applied to the black background All images have another not white or black or dif ferent background colors Select one of two ways 1 Choosethe Images Transparent background color Auto to assign automatically images background color and set up transparency to all mosaic project images Choose the Images Project images list du plicated by the 2 button to set up the back ground transparency to images selected in the Images list window Select the images in the list and click the l button to define the images background color see detailed description in Section 8 5 Choose the Images Transparent background color None to cancel transparency setting for images background color 16 PHOTOMOD 5 3 Es 3 1 24 Preview Se mo JANO Ra AX T E Oro o e e CIC 2590914 718650 m 6581681 848800 m 0 000000 m Fig 3 Black color of images
5. sssssssssssssssssssssenee eene n hese nnne rennen nni 45 10 9 Sheets menu aoo ada leech Lo eee IUE Yo c etude denle eV etg eae Pe ode 46 Vs Sttching by tie polnts rica teo dt A Dot duse edat dein ta dee a eR durs 47 TEI Pre Setting A aiid os danas ede ai eli ed ce ean ered e lela Ed Gla dn 48 11 2 Tie points measurement cccee cece cece cece cette eee ee ceeee aa eeecaaeecaeeeeaeeeesageeseeeesaeeeeneeeeaes 49 11 3 Editing measurements of points 2 2 0 eect cece eee rete eee eme Hem een 53 11 4 Measurement of GOPS criada tanta da onda lada 54 11 5 Parameters of points measurements oooocccoccconoccnnccncnncnnnnnnnnncnnnnnnnnnnnnnnncncnnnnnnnnnnnnnninnns 55 11 6 Information about tie point cece cece cece e cece ee cece ee eee ee cece ee ee ee saeeeaaeeesaeeesaeeeeaeeeeaeeeeas 57 11 7 Attributes of Tie points layer cece eect eter tenet HH Hmmm nennen 57 11 9 Tie S MA tdt tidad RE dee e REUS dU 58 11 9 Tie points toolbar 2 1 9 1 o A tto ede ea oy TU eed ae ended 59 12 Using auxiliary data un e e eed 60 12 1 Misc Miscellaneous menu sssssss eme Henne nene ner ennnnes 60 13 MOSAale eirzrz lio eeepc P 60 13 1 Setup mosaic parameters ssssssssssssssssssssie eene ener nne nne r rennes 61 PHOTOMOD 5 3 GeoMosaic 13 2 Creation of output mosaic sheets oooooocococcccnccocococcnncccononnnnnnnnoncnnnnnnnnnnrcnnnnnnnnnnnnncnnnnnss 72 13 3 MOSAIC MENU dana 72
6. Rasters gt GeoMosaic 5 GUI elements The GUI contains the following elements The main menu which contained the all program functionality The main toolbar is used for quick main program functions access The optional toolbars is used for quick miscellaneous program functions access The 2D window used for data displaying contains the following elements o The toolbar is used for the 2D window modes managing o The work area is used for viewing and processing with loaded data of mosaic pro ject o The navigation bar is used for fast moving on the specified block images area of mosaic project o The Layer manager is used for managing of mosaic project layers o The status bar is used for viewing current real ground and pixel marker coordinates and brightness contrast and gamma data adjustment in the work area 3 If the PHOTOMOD system is installed on the workstation PHOTOMOD 5 3 GeoMosaic QJPHOTOMOD GeoMosaic Project Images Cutlines GC Tie points Sheets Misc Mosaic Vectors Edit Service Window Help Exit Deju R totes UK He THR AQ Ar o Bca wa Ba apa NES 1 28 Preview Belga QM Qja E 93 ma E Eh 1 lr www E cuf EEG S Ww lees na F O amp Useful areas O E Clouds E amp Ground control and O amp Miscellaneous 2 E amp sheets E amp Cutlines Raster AX T RE OS ees i J 737008 750750 m 258650 068450 m 0 000000 m R 105 G
7. Table 15 Brief description of Sheets menu Sheets menu Purpose Clear This menu item allows to delete the created sheets boundaries i e delete all vector objects from the Sheets layer without closing of this layer Open This menu item allows to open sheets boundaries which were been saved in the vector file with the x data extension in the resources of active profile Save This menu item allows to save the sheets boundar ies Save as This menu item allows to save the sheets boundar ies in new file with the same extension Sequential splitting This menu item allows to define the sequential splitting parameters of block images area and start the process of sheets boundaries creation by the specified parameters Full mosaic sheet This menu item allows to create the single sheet covering all block images Split into sheets by images This menu item allows to create the sheets from each image of block Single sheet creation mode This menu item allows to create the single sheet with arbitrary boundaries from any part of block im ages Activate all sheets This menu item allows to select all sheets for creat ing output mosaic files i e the value of status attrib ute will be equal to 1 active status for boundaries of all sheets of Sheets layer Deactivate all sheets This menu item allows to exclude all sheets from the process of mosaic creation and output mosaic files creation i e the value
8. amp Cutlines Raster 4 amp E oroo __ j O IO 2594274 718650 m 6584009 848800 m 0 000000 m Cartesian Right Fig 2 Output background color of mosaic and input background color of images without transparency setting You can use the following ways to open mosaic project images in separate 2D windows 1 Choose Images Project images list to open the Images list window Select im ages in the list and click the Al button T To select several images in the list use Shift and Ctrl hot keys and selection tools in the Images list window see Section 8 5 2 Choose Misc Source images outlines to create images outlines vector objects Select images outlines and choose Images Open selected images T To select several images drag rectangle along with pressed Shift key and using one of group selection tools on the Tools panel 14 PHOTOMOD 5 3 GeoMosaic ES You can also use other vector objects to select images for example cutlines areas without background color areas with clouds To pass to the previous next image of block in 2D window use the following buttons of the main toolbar e amp 9 to display previous image e gt to display next image To open the previous next image of block in additional 2D window use the following buttons of the main toolbar to display in additional 2D windows current and previous images I to display in additional 2D windows curren
9. boundaries are docking i e images blocks without overlaps and gaps In order to create mosaics using such images you should perform the following actions setup transparency of input background color split into sheets setup mosaics parameters and create output mosaics sheets Performing the following steps is recommended for the cutlines creation 1 optional Creating areas without background and areas with clouds 2 Automatic cutlines creation 3 Editing cutlines manual editing of vector polygons and their attributes in the Cutlines layer Current section contains the following information Requirements of the cutlines creation Creation specification of areas on images without background to create cutlines Creation areas with clouds in order to consider them during cutlines creation Automatic cutlines creation Creation editing cutlines 21 PHOTOMOD 5 3 GeoMosaic Obtaining information about cutlines and using attributes of the Cutlines layer The import export of the cutlines Brief description of the Cutlines menu 9 1 Requirements of the cutlines creation There are following rules to go by when creating the cutlines for building of the high quality mosaic Cutlines should not have intersections and self intersections The common boundaries of the neighbour cutlines should be fully correspond l e all areas of the source im ages outlined by cutlines form one united coverage without ov
10. click the 4 button of the Tie points toolbar see also Section 11 3 For measuring the next point select the another terrain point on the images in the each of the 2D windows and click the button of the Tie points toolbar A new point is added as a result Repeat the 3 item for editing of tie point measuring lt r For measuring of the next point using correlator select the terrain point on the images in the each of 2D windows and choose the Ties Add tie points Add with correlation or click the button of the Tie points toolbar see 2 item in Section 11 2 2 Choose the Ties Finish measurement or click the PE button for completing of measuring tie points in 2D windows and displaying of the stitching results in the Preview window The areas stitching is performed in the middle of the interval between points in the 2D windows 49 PHOTOMOD 5 3 GeoMosaic 11 2 2 Semi automatic mode measurement of tie points The semi automatic mode implies the automatic computing of tie points using correlator in the marker placement If necessary set the Correlator parameters before the start working Perform the following actions for measuring of tie points in semi automatic mode 1 Select the terrain point in the vicinity of cutlines in the Preview window for adjustment of stitching areas and set the marker in this place 2 Choose the Ties gt Add tie points gt Add with correlation or click the button of the Tie point
11. f button of the Tie points toolbar for deleting all measuring points on the Tie points layer The Objects attributes window is used for viewing and editing tie points data from at tributes see Section 11 7 Choose the Ties Show residuals to show residuals as the measurement point data is accumulating or click the 18 button of the Tie points toolbar Analysis of error vectors reveals bad points having error vectors noticeably different from other points in size and direction Choose the Ties gt Delete by maximal residual or click the i button of the Tie points toolbar for rejection the points the measurement of which causes the noticeable shift of images relative to each other The Delete parameters window opens Specify the maximal tie points residuals in meters for rejection points the measurement of which causes the noticeable shift of images at the distance greater than the specified in meters 11 4 Measurement of GCPs In case there is an image reference image with more accurate georeferencing covering the same area as source images this reference image can be used for measuring of ground control points on the source images The program provides three measurement modes of GCPs manual without correlation semi automatic and automatic using the correlation The correlator parameters are defined in the Points measure parameters window see Section 11 5 For GCP measurement you should define in advance a type
12. formats Tag Image File Format TIFF TIFF n GeoTiff format included tags for saving of georeference information Windows Bitmap File BMP VectOr Raster Maps RSW praster formats of PHOTOMOD VectOr program ERDAS IMAGINE IMG ERDAS system raster format NITF NITF JPEG JPEG GIF GIF PNG PNG USGS DEM DEM PCIDSK PIX raster format with georeference in the heading developed by PCI Geomatics company JPEG2000 JP2 raster format with jpeg compression and georeference in the heading developed Tp The program also provides the ability to load and process of palette images in TIFF GIF and BMP files format 1 The limitation on output file size of JPEG2000 format no greater then 500 Mb PHOTOMOD 5 3 GeoMosaic The source images can be placed to resources of the active profile as well as to con ventional file system 2 4 Output data The program provides the supporting of multiple raster formats to export the output mosaic sheets the program also provides the output formats to export the georeference data The cutlines sheet boundaries and tie points created in the mosaic project are stored in vector files of internal format The program supports the multiple import export formats of vector data Table 1 Output data Output data Mosaic project File formats X GMOS internal format File placement in the active profile resources Cutlines and tie point
13. images de scription x feat 9 3 1 Automatic clouds detection Automatic clouds detection principle consists in search on image for bright enough and homogeneous areas where there is gray color with area not less then specified To calculate cloudy areas automatically perform the following actions 1 Choose Cutlines Clouds Build The Clouds detecting parameters window is opened 27 PHOTOMOD 5 3 GeoMosaic E Clouds detecting parameters fa x et Brightness lower boundary ls K Upper boundary of gray shift fo Tg Upper boundary of heterogenity iso xj Dispersion upper boundary Eb A Clouds edges thinning fo Minimal cloud area 1000 x m 2 Clouds offset h A m For selected images only Force Distributed processing Cancel Fig 10 Parameters of cloudy areas building 2 Specify the following parameters of automatic clouds detection Brightness lower boundary allows to define range of brightness for clouds detection to specify lower brightness threshold from O to 100 where 100 maximal brightness if the brightness is more that the threshold it is considered as possible cloud Upper boundary of gray shift allows to define maximal deviation from gray color that present in clouds from O to 100 where 0 gray color when R G B values are equal Upper boundary of heterogenity allows to define range of heterogenity in clouds to spec
14. in PHOTOMOD System User Manual Choose the Cutlines gt Build The Cutlines creation parameters window opens Choose the auto cutlines creation algorithm and define the additional parameters see parameters description in Section 9 4 Click the Distributed processing button The Cutlines distributed processing window opens Cutlines distributed processing 10 xj Number of images in project 6 Max number of simultaneous tasks 1 A Temporary folder for parallel processing project temporary_data E Output cutlines resource Iproject cutlines x data Tn Fig 12 Cutlines distributed processing parameters Define the number of tasks folder of temporal data name and placing of vector file for cutlines storing Table 10 Description of cutlines creation parameters in distributed processing mode Parameter Purpose Number of images in project Field displaying the number of source project images Max number of simultaneous tasks Entry field for defining tasks number on which the process of cutlines creation will be divided Temporary folder for distributed processing Entry field for defining the folder in the resources of active profile for temporary data storing The button is used for folder selecting or new folder creating in the resources of active profile Output cutlines resource Entry field for defining placing and the name of output vector file for storing cutlines in the re sources of ac
15. of transformation which will be applied automatically on edges of images block while GCP measurements are accumulating Perform the following actions to choose a transformation type 1 Choose the Mosaic Parameters The Mosaic parameters window opens Choose the Mosaic tab 2 In order to apply shift as a transformation type set the Apply shift only to image edges when use GCPs option on the Mosaic tab Or clear this option to apply projective transformation Perform the follows for defining correspondence between the source images by control point on reference image in the manual mode 1 Choose the Service Load georeferenced images Specify the file with reference image and click the OK button The Load georeferenced images window opens If necessary convert the coordinate system and set the background color for refer ence image Click the OK button 54 PHOTOMOD 5 3 GeoMosaic 2 Hide the layer with reference image in the Layer manager and make active the Tie points layer 3 Inthe window with the source images insert the marker in the place of adding point on the one of the images in the vicinity of cutline Choose the Ties Add ground control points gt Add without correlation or click the button of the Tie points toolbar Turn on visibility of the layer with reference image Move up the Tie points layer in the Layer manager for displaying the added point on the reference image 4 Specify the point placement on t
16. saved in the files with the pyr extension in the Pyramid folder during this process 20 PHOTOMOD 5 3 GeoMosaic Images menu Purpose Delete pyramids This menu item allows to delete all pyramids cre ated for loaded images all pyramids are deleted from the Pyramid folder during this process Transparent background color Auto Allows to assign images background color automat ically including also different background colors of different project images and to set up transparency Transparent background color White This menu item allows to set the transparency for the white images background color Transparent background color Black This menu item allows to set the transparency for the black images background color Transparent background color None Allows to cancel transparency setting for images background color 9 Cutlines creation The stage of cutlines creation vector polygons defining the images area which will be included in output mosaic follows after the forming the block images of the mosaic project The Cutlines vector layer is provided for cutlines creation Combination of automatic and manual cutlines creation with clouds selection optional use of DEM as well as definition of the cutlines type by attributes provide high quality the stitching of the areas during the output mosaic creation A There is no need to create cutlines when you process block of images which
17. the option is set by default See also Section 8 2 Skipped sheets fill color Allows to select a fill color to show inactive sheets of mosaic i e sheets excluded from output files creation You can adjust the transparency degree for selected color using the Skipped sheets color transparency slider in percent See also Sec tion 10 6 Fast view in zoom lt 100 Allows to display images block as a scheme in the Preview window when zoom out is recommended for large images blocks 75 PHOTOMOD 5 3 GeoMosaic Parameter Description Preview extents Allows to define extents for displaying content in the Preview window by source images by all created sheets or by images and sheets 76
18. 115 B 061 Cartesian Right Fig 1 GeoMosaic 5 1 Brief description of main menu The program main menu contains the menu items for mosaic creation vector data processing additional applications starting and setting parameters Table 2 Main menu Purpose The menu is purposed for creation opening and mosaic project saving and also obtaining informa tion about project The menu is purposed for images block forming of mosaic project Cutlines The menu is purposed for cutlines creation the vector polygons defining areas of source images which will be included in output mosaic The Cutlines layer is provided for cutlines creation The menu provides also features for calculating areas without background useful areas and cloudiness which data is considered during cutlines creation In order to calculate useful areas and clouds the system provides vector layers Useful areas and Cloud PHOTOMOD 5 3 GeoMosaic Menu Purpose GC Tie points The menu is purposed for searching and tie points measurement in the cutlines region to adjust the stitching along the neighbour cutlines Stitching from tie points is provided the images transforming in the specified region The Tie points vector layer is provided for tie points measurement Sheets The menu is purposed for mosaic splitting the mosaic areas saving in the separate output format files The sheet boundaries are specified using vector polygons in Sheet
19. 145 COMMON PAFAMELENS aaea ean to ai ruens Pater dae d hen cee Paene a o gebe v vene ia bam aedi 73 14 1 Preview parameters ccccccccc cece ce eeee cece eee eecaeeee ae eeeea esse eeecaaeesaeeeeaaeesseeeeseeeesegessaes 74 PHOTOMOD 5 3 GeoMosaic 1 About The current User Manual contains information about information of Geomosaic program functionality This program is designed to merge the georeferenced orthorectified imagery and create the orthomosaic from them The main part of document contains description the technology of mosaic creation 2 About program 2 1 Purpose and main definitions The GeoMosaic program hereinafter is referred to as program is purposed to create the orthomosaic from georeferenced orthorectified aerial and satellite imagery splitting of created orthomosaic with the capable of saving sheets in popular raster file formats The orthoimage is the image obtained after the transformation from the central projection to the orthogonal projection with automatic removal of distortions which were caused by the imaging equipment elevation angle and relief The orthomosaic is the single image which obtained during the brightness adjustment and merging the multiple georeferenced orthorectified images The program uses the following conventions and terms e Throughout this User Manual the source geoereferenced orthoimage is referred to as mosaic project image or source image
20. CHMMKA 20 0 nHkc ToyHocTb 8 0 A nWKc MnHHManeHas nnouaAb KOMMOHEHT 1000 0 nWKc 2 Toneko Ana EbiaeneHHerx uiso6paxeHWi v TipanyanreneHerii nepecuer PacnpeaenenHan obpaborka OTMeHa Fig 6 Useful areas parameters 2 Specify the following parameters of useful areas calculation Unique background color and Maximum deviation from background color are used for more accurate calculation of useful areas in case of unique back ground color with possibility to specify deviation from this unique color i e to define a range of color which presents in background of source images e Image edges trim allows to setup offset distance from background boundary and the image substantial area Precision allows to define accuracy of calculation of areas boundaries this value influences on number of nodes in polygon to be created e Minimal components square allows to specify image area value that will be used as area minimal threshold for useful areas creation For selected images only allows to calculate useful areas for selected images only Force recommended allows to re calculate useful areas and refresh informa tion in files with images description x feat 3 Click OK or click the Distributed processing button to calculate useful areas Please find below some features of of automatic calculation of useful areas using the following example 1 Source image has black input background Th
21. Choose the Sheets Save as for creating a new file Choose the Edit Export to export sheets boundaries into other vector format files see Project processing User Manual 44 PHOTOMOD 5 3 GeoMosaic 10 8 Setting output parameters The output parameters allow to define the method of output files naming and criteria of selection sheets for creating output files After splitting the block and editing sheets boundaries and attributes choose the Sheets gt Parameters or click the button in the Sheets toolbar The Sheets parameters window opens ll Sheet names From attribute sheet name on Serial numbers IckBosHaa Number of vertices Arbitrary C Value 4 A Sheets activity Mode C Create all sheets Create sheets with attribute value Do not create sheets with attribute value Attribute name create Attribute value 1 Fig 21 Sheets parameters Table 14 Description of the output sheets parameters Parameters Purpose Sheet names This parameter allows to define the names of output mosaic sheets Choose the From attribute input field and specify the attribute of name in the input field for using names stored in the attribute of name of the Sheets layer For using the serial numbers choose the Serial numbers input field and define the file name prefix In this case while creating mosaic the sheet names are generated as follows P
22. D 5 3 GeoMosaic Local adjustment parameters Ta x Fragment size Inner points 32 A 1 Number of fragments Contrast coefficient 32 A 3 Density coefficient 2 2 Search additional fragments with 50 overlapping Minimal valid part in fragment 33 s x Fig 32 Local brightness adjustment parameters Table 23 Description of local brightness adjustment parameters Parameter Description Fragment size Allows to setup a size of image fragments used to create a model of local brightness adjustment The bigger the fragment size the better the adjust ment but the slower the processing Number of fragments Sets the number of fragments located on each image The greater the number the better the adjustment but the slower the process of para meters calculation and mosaic creation Inner points Sets the number of points inside the image and on the edges of output mosaic where the bright ness should be preserved Lack of inner points leads to brightness anomalies when moving away from the cutlines Excess number of inner points causes the brightness un adjustment along the cutlines Contrast coefficient In some cases when the contrast of initial images is defined incorrectly it causes poor brightness adjustment or errors in creating of local brightness adjustment model You can increase the value of this parameter from 2 to 7 to improve the result Density coefficient Sets the amount of tie points on the edg
23. Digital Photogrammetric System ae pu Ge 0 Version 5 3 USER MANUAL GeoMosaic G RACURS PHOTOMOD 5 3 GeoMosaic Table of Contents VADO UE a e eaae ro bed ede bu Da E IAEA A eave delete 4 2 Aboutiprogralm x eta eclipse e ia 4 2 1 Purpose and main definitions 0 ccceccece ce eeee ce eeee eee ceeeee ce eeeeeeeecaeeeeaeeeseeeeeaeeeesaeeesaeees 4 2 2 Features at a Glarice mica lat iia r an ad ade 4 2 Ss IMPUt data in m 5 24 OQUiputdata econ art papal datada le ltz sae ah 6 SE Eier LET 6 As Start Of WOK aeo irran aoaaa e a ads vndise Sa dad a a nna tar a aa Saad aaea aa aAa aaa A aE ts 7 5 GUIelSMONtS 0000 E ae danced a je A ved A a A Ati 7 5 1 Brief description of main MENU ssssssssssssssssseeee eene eee hne ren nhe 8 6 Workflow of mosaic creation sssssssssssssssssssssne nennen ehe hene herir eher rne nennen 9 To MOSAIC project crea cita etra Tg ea eed Re 10 TA Project menu za eru dee arat AA edem E DER e Pede a e Rp 11 8 Loading images in the mosaic project ee eee tee ee tee eee Henne rne 11 8 1 Adding images s o e eo ada 12 8 2 Images previeW ose eoe ate dt alta 13 8 3 Setting background color of the images sssssssee eH 15 8 4 Processing of block images ciere zoe teca died 18 8 5 The Images list window ssssssseseee Hm Hem hene nnne nnne nne 18 8 6 IMAGES menu 3 noscere e laa pin eS 20 9 C tlines Creatlo
24. O 2588903 033000 m 6585037 804000 m 0 000000 m Cartesian Right Fig 17 Sequential splitting See also Section 10 5 and Section 10 7 10 2 Creating the single sheet covering all images block This mode allows creating the single sheet covering all images block of mosaic project Choose the Sheets gt Full mosaic sheet or click the E button in the Sheets toolbar for creating the single sheet covering all images block of mosaic project The sheet boundary that is the vector polygon which includes all images of mosaic project is created in the Sheets layer Sheet boundaries are displayed in the Preview window Mosaic is a sheet name The sheet status is active since it is selected for creating of output mosaic file See also Section 10 5 and Section 10 7 10 3 Splitting by images This splitting mode allows to create sheets covering each image of the mosaic project Choose the Sheets Split into sheets by images for creating sheets covering each image The sheet boundaries are created in the Sheets layer and displayed in the Preview window Each sheet includes one of the project images The name of image is used as the sheet name All sheets are active i e are selected for creating of output 40 PHOTOMOD 5 3 GeoMosaic mosaic files The Build sheets by images parameter on the Mosaic tab in the Mosaic parameters window has the effect on creating output mosaic sheets see Sec tion 13 1 1 See also Section 10 5 and Sectio
25. PEG compression Image quality 75 0 100 Georeference file ArcWorld TFW BPW Y Swap x Y Create georeference only Set background color as transparent Saye georeference as NonEarth File names Fig 33 Mosaic output parameters Table 24 Description of mosaic output parameters Parameter Description Map scale Allows to setup a scale for output mosaic sheet Click the Calculate map scale button to open the window where you can specify a scale and calculate a map sheet size in meters and print resolution Create MS TIFF Allows to create output mosaic sheets in MS TIFF format with pyramid that helps to redraw images more quickly on a screen when using systems with MS TIFF format support 69 PHOTOMOD 5 3 GeoMosaic Parameter Create Geo TIFF Description Allows to create output mosaic sheets in Geo TIFF format with pyramid Extended ERDAS Imagine IMG IGE Allows to create output mosaic sheets in IMG files format for heading and IGM format for image with no limitations for size Compression Allows to compress files with output mosaic sheets JPEG compression for TIFF files is used You can select a compression level using the Image quality slider Default compression level is 75 that provides the 5 7 times compression of initial image volume Georeference file Allows to select the format of the additional file cre ated along with
26. activity Mode C Create all sheets Create sheets with attribute value Do not create sheets with attribute value Attribute name create e Attribute value 1 Fig 18 Setting attributes names Perform the following actions for obtaining and editing information about a sheet e Select the sheet boundaries by double click in the Preview window Choose the Sheets Sheet info The Sheet info window opens E Sheet info 5 xl Sheet name Sheet5_3 IV Sheet will be created m Fig 19 Values of cutline attribute Window contains the following information 42 PHOTOMOD 5 3 GeoMosaic The sheet name in the Sheet name field corresponds to the sheet name attribute value e Set Sheet will be created checkbox corresponds to the 1 value in the create attrib ute i e the sheet status is active Cleared checkbox corresponds to the 0 value i e the sheet status is not active Perform the following actions for viewing and editing attributes values of selected sheet e Select the sheet boundaries by double click in the Preview window e Choose the Window gt Object attributes or click the 4 button in the Vectors toolbar The Object attributes window opens Object attributes x Ooesee create text sheet name text Fig 20 Values of sheet attributes The 1 value in the create attribute corresponds to the active sheet status the 2 value corresponds to the inactive shee
27. age is pro cessed depending on its coordinates At that the program performs simultaneous change of brightness additive component and contrast multiplicative component of initial images For preliminary estimation of local brightness adjustment choose the Misc Local ad justment In the Preview window you will see a grid of fragments rectangles used 66 PHOTOMOD 5 3 GeoMosaic for statistics collection for local brightness adjustment Fragments for statistics collection between images in the same strip are shown by green color between strips by blue on the mosaic edges by red inside separate images by yellow The fragments are vector objects located on the Miscellaneous layer You can make the Miscellaneous layer editable when necessary and change the fragments grid see the chapter Editing of vector objects in the General information about system User Manual 2 1 40 Previe B SM SAMAR Tie points Miscellaneous 4 a or 5 wre J 2588608633000 m 6585543 404000 m 0 000000 m Cartesian Right Fig 31 Preliminary estimation of local brightness adjustment To apply local brightness adjustment you should perform the following 1 Choose the Mosaic Parameters The Mosaic parameters window is open 2 Click the Brightness adjustment tab In the Local adjustment panel set the On checkbox and then click the Parameters button The Local adjustment parameters window is open 67 PHOTOMO
28. anaging sheets status 5 Setting output parameters of sheets 6 Creating output sheets of mosaic see Section 13 2 To create mosaic sheets use the Sheets menu or the Sheets toolbar that provide a quick access to sheets creation operations To open the Sheets toolbar choose the Window Toolbars Sheets The current section contains following information Mosaic splitting methods o splitting into sheets by the specified parameters o creating a single sheet covering all block images o splitting into sheets by the images 37 PHOTOMOD 5 3 GeoMosaic o creating a single sheet with an arbitrary boundaries for any block images area o standard and custom splitting Editing attribute values of the Sheets layer and sheets boundaries e Managing sheets status e Setting output parameters of sheets Brief description of the Sheets menu 10 1 Splitting into sheets by the specified parameters This mode allows splitting specified area of block images in accordance with specified number of sheets and or sheet size Perform the following actions for splitting block images into sheets by specified para meters 1 Choose the Sheets gt Sequential splitting or click the i button in the Sheets toolbar The Sheets splitting parameters window opens Sheets splitting parameters e x Toii ii m Norby 6588590 551 West East f2583872 433 24 93158 34 EA South 6579623 204 Overla
29. area see the Block extents parameter in accordance with specified number of sheets and sheet size see the Sheet size parameter Thus sheet size not recalculated when the modifying number of sheets Attribute with sheet names This parameter allows to define the name of at tribute for storing the sheet names Sheets creation attribute This parameter allows to define the attribute name for storing information about sheet status By default the create is proposed 3 Click OK The process of sheets creation starts The sheets boundaries are created in the Sheets layer after this process completion The Sheets layer becomes editable and marked by asterisk this means that the layer has been edited but not saved The sheet boundaries are displayed in the Preview window All sheets are signed in accordance with the specified template for sheet name Sheets base name Row number _ Number of the sheet in a row All sheets falling within block images are active i e selected for creating output mosaic files Active sheet is shown by green outline and has not color filling Inactive sheet is shown by red outline and red transparent filling by default You can select color and set up transparency options for inactive sheets on the Preview tab of the Set tings window seeSection 14 1 39 PHOTOMOD 5 3 GeoMosaic OIE TAA Maho ES 3 OE Tie points 3 O E Miscellaneous Raster TE O O_o 3 3 ei
30. background GIs 1 24 Preview Be MGI AMARA IE o r e _ owns J 2590914 718650 m 6581681 848800 m 0 000000 m Cartesian Right gt GeoMosaic 3 Marker 3 4 D 6 Useful areas E amp Clouds E amp Ground control and O amp Miscellaneous O amp Sheets E amp Cutlines Raster 3 Marker 3 4 0 6 Useful areas E amp Clouds E amp Ground control and O amp Miscellaneous E amp Sheets E amp Cutlines Raster Fig 4 Transparency setting for black color of images background 17 PHOTOMOD 5 3 GeoMosaic 8 4 Processing of block images The option for deleting of selected images is provided to edit the images block Perform the following actions to delete the images from the mosaic project e Select the image in the Preview window Choose the Images gt Delete selected images Perform the following actions to select the images o Choose the Misc Source images outlines to create the edges of the images on the Miscellaneous layer o Select the images boundaries using the group selection tools of the Tools panel ES For images selection you may use other vector objects for example cutlines areas without background areas with clouds Choose the Images Project images list The Images list window opens Select the images in the list and click the M button Use the hot keys and tools of the Images list window to select the several images in the li
31. cal and global brightness adjustment on the Brightness adjustment tab see Section 13 1 2 3 Parameters of output mosaic sheets on the Output tab see Section 13 1 3 4 Additional parameters on the Misc tab see Section 13 1 4 In order to save current mosaic settings made in the Preview window for the purpose of their further use in other projects choose the Mosaic Save parameters preferences To load saved mosaic settings into the Mosaic parameters window at the program start set the Use saved mosaic settings checkbox on the Geomosaic tab in the Settings window see Section 14 Otherwise the default mosaic parameters will be loaded at the program start 61 PHOTOMOD 5 3 GeoMosaic lala Mosaic Brightness adjustment Output Misc Cell size 2 m Calculate Background color Resampling method Il Black x Bilinear ha IV Shift background color 1 x IV Fill backround out of sheet boundaries Raster offset of sheet 1 0 A pix Geometry correction cell size 32 x pix Output raster channels Build sheets by images IV Use images without cutlines Use source rasters base layer only Use tie points Apply shift only to image edges when use GCPs Rotation angle 0 0 2 Source rasters background color range iD s Input coordinate system Cartesian Right Local right Cartesian reference system Select Orientation right geo referencing local coordinate system Output coordinate system
32. ckbox to apply projective transformation type For measurement of GCPs tie points using the correlator in semi automatic or automatic modes are used the correlator parameters Choose the Ties Parameters for viewing and editing parameters of correlator see Section 11 5 11 2 Tie points measurement A pre requisite for measurement of tie points is the presence of cutlines created in the Cutlines F layer see Section 9 Otherwise the message about that cutlines must be created is shown And measuring of tie points is not possible Set the Use tie points checkbox for dynamic displaying of cutlines during the adding of tie points see Section 11 1 11 2 1 Manual mode measurement of tie points Perform the following actions for measuring tie point in manual mode without correlator T Select the point in the vicinity of cutlines in the Preview window and set the marker in this place to add the tie point Choose the Ties gt Add tie points gt Add without correlation or click the 4 button of the Tie points toolbar The 2D windows with source images are opened New tie point is added in the specified place The visual non conformities of tie points are displayed in the 2D windows on the source images because the points are displayed by the data of georeference Select the new placement of selected tie point on the source images in the each of 2D windows for editing of its measurement Choose the Ties Remeasure or
33. create useful areas prior to cutlines creation in the following cases there is no background on images manual editing specification of useful areas is not required due to features of source data since the system allows to calculate useful areas automatically on a step of setting parameters for cutlines creation 22 PHOTOMOD 5 3 GeoMosaic there is no need to select create cloudy areas on source images to consider them during cutlines creation ES Useful areas creation may exclude a necessity to setup transparency of input background color However you should keep in mind that setup of transparency of input background color is highly recommended when there are areas inside images with the same color as background and you need to consider these areas in output mosaic as transparent i e to produce mosaic with gaps without fill of input background color or using reference image see Section 8 3 For useful areas creation use menu Cutlines Useful areas Oe Please remember that useful areas along with other information such as background color cloudy areas cutlines are saved in files with image description x feat that are located near files with images Table 8 Brief description of menu Useful areas Menu Cutlines Useful areas Purpose Build allows to define parameters and calculate useful areas automatically as vector polygons on the Useful areas layer En Information about cal
34. culated useful areas is saved automatically in files of images description x feat Clear allows to clear Useful areas layer without closing of this layer ES At that information about useful areas is not deleted from files of images description x feat that allows to restore created useful areas using menu item Cutlines Useful areas Open Open allows to restore recently created useful areas if the Useful areas layer was cleared using menu item Cutlines Useful areas Clear and then to display them in the Preview window Save allows to save useful areas in files of images descrip tion x feat after drawing them manually or editing areas without background calculated automatically Delete all allows to completely clear the Useful areas layer without possibility to restore the useful areas i e to clear the layer along with deleting information in files of images description x feat Delete for selected images allows to delete useful areas created for selected images along with information in files with images description x feat 23 PHOTOMOD 5 3 GeoMosaic 9 2 1 Automatic calculation of useful areas For automatic calculation of useful areas perform the following actions 1 Choose Cutlines Useful areas Build The Parameters window opens GJnapawerpei izl xi AonycrwMoe oTknomeHne or usera joa f1 x IV YHwkaneHeifi user dona Obpeska pann
35. d creation of output files for selected active sheets Build current sheet is used for start of mosaic building and creation of output file for selected sheet 72 PHOTOMOD 5 3 GeoMosaic Mosaic menu Distributed processing Description allows to start mosaic creation for specified active sheets considering user settings and parameters in distributed processing mode Distributed processing with sheets splitting allows to start mosaic creation using distributed processing with splitting of active sheets Open image allows to open any image of acceptable raster format for preview in the application window Save parameters preferences allows to save mosaic parameters setting for further use them in other mosaic projects see a description of the Use saved mosaic settings option in Sec tion 14 14 Common parameters For convenient work the program provides adjusting of common parameters and mosaic visualization parameters in the Preview window see Section 14 1 Perform the following actions to set up common program parameters 1 Choose the Service gt Settings or click the li button The Settings window opens 2 Click the Geomosaic tab cla ma 0000000000000 Preview Et Windows v Save local adjustment v Create backup Backups i Auto save i System Fast building without background analizing v Correct cloud topology when
36. d to check correspondence between cutlines and images of a project in order to find images without cutlines and or cutlines which are not at tached to images 36 PHOTOMOD 5 3 GeoMosaic Menu Cutlines Purpose Split cutlines into sheets allows to split cutlines according to boundaries of created sheets 10 Splitting into sheets The program allows cutting the output mosaic into sheets for saving them in the separate files of output raster formats On the other hand existence of at least one sheet covering all or part of the block is required for creating the mosaic The Sheets vector layer is provided for the creation of sheets boundaries The program provides the different splitting options the capability of sheets selection for creating output files and setting output parameters Throughout this User Manual the Active sheet is referred to as sheet from which the output mosaic file will be created The sheet status is defined by the attributes value of sheets status It is recommended to pass the following number of actions during the mosaic sheets creation 1 Definition of the mosaic output coordinate system see description of the Output coordinate system panel in Section 13 1 1 2 Splitting block images into sheets i e creating sheets boundaries the vector objects with the attributes for storing information about sheets in the Sheets layer 3 Editing attribute values and sheets boundaries 4 M
37. dows with the source im ages and return to the Preview window for viewing the results of cutlines stitching by measured points E allows to setup correlator parameters used for tie gcp points measurement in semi automatic or automatic mode 15 used to display residuals reveals bad points hav ing error vectors noticeably different from other points in size and direction ii used to remove blunders of tie gcp points automatic measurement allows to reject those points which 59 PHOTOMOD 5 3 GeoMosaic Buttons Description measurement value results in shift of images relat ively each other at distance more than specified in meters 12 Using auxiliary data 12 1 Misc Miscellaneous menu Misc menu is used to show in the Preview window an auxiliary data that may be con sidered during mosaics creation For auxiliary data that is vector data the Misc layer is provided Table 20 Brief description of Misc menu Misc menu Description Clear allows to delete all vector objects created in the Misc layer Save as allows to save the Misc layer data to vector file with different name and x data extension in active profile resources Local adjustment allows to show in the Preview window a grid of fragments for preliminary estimation The grid of fragments is intended for collecting of statistics data of local brightness adjustment see Section 13 1 2 1 Source images outlines allows to
38. ds Menu Cutlines Clouds Purpose Build allows to setup parameters and automatically calcu late cloudy areas as vector polygons on the Clouds layer 26 PHOTOMOD 5 3 GeoMosaic Menu Cutlines gt Clouds Purpose lt r Information about calculated cloudy areas is saved automatically in files of images description x feat Clear allows to clear the Clouds layer without closing the layer ES At that information about clouds is not de leted from files of images description x feat that allows to restore created clouds using menu item Cutlines Clouds Open Open allows to restore existing clouds ifthe Clouds layer was cleared using menu item Cutlines Clouds Clear and to display them in the Preview window Save allows to save clouds in files of images description x feat after editing of clouds calculated automat ically or after drawing them manually Save for selected images allows to save cloudy areas created just for selected images to files of these images description x feat after editing of clouds calculated automatically or after drawing them manually Delete all allows to clear the Clouds layer completely without possibility of restoring cloudy areas e to clear the layer along with information deleting from files of images description x feat Delete for selected images allows to delete clouds created for selected images and to delete information from files of
39. e image for example sea and coast this method may produce incorrect brightness adjustment res ults By project image Allows to apply global brightness adjustment corres ponding to selected image i e brightness and contrast of images are adjusted in accordance with parameters of selected reference image Use the button _ to select the reference image It is recommended to use image located in the middle of images block as a reference It is not recommen ded to use this method in case of abnormal local brightness fluctuations trends on images since in this case you can face a problem of smooth in creasing or reducing of the brightness and contrast 65 PHOTOMOD 5 3 GeoMosaic Parameter Description from the reference image to the block edges right up to complete lightening blackening By image file Allows to apply global brightness adjustment corres ponding to selected image i e brightness and contrast of images are adjusted in accordance with parameters of selected reference image Click the _ button to select the reference image You should specify the background color for selected image Match histogram An additional parameter of brightness adjustment allows to apply full nonlinear adjustment with his tograms matching Local adjustment Allows to apply local brightness adjustment along cutlines of images that are merged into
40. e Sheets layer select a border of a sheet for which the output file will be created o Choose the Mosaic Build current sheet The Save as window is open where you can specify name format and target folder of output file Default file name is a name of sheet stored in attributes of the Sheets layer To create output orthophotos for several mosaic sheets perform the following o Define active sheets on the Sheets layer for which the output files will be created see Section 10 o Choose the Mosaic gt Build full mosaic or click the button The Sheets file window is open Specify format and target folder for output files Tocreate output mosaic in distributed processing mode choose the Mosaic Distrib uted processing or the Mosaic Distributed processing with sheets splitting to start mosaic creation using distributed processing with sheets splitting 13 3 Mosaic menu Table 26 Brief description of Mosaic menu Mosaic menu Description Parameters allows to setup parameters of mosaic preview and creation as well as brightness adjustment and out put data save Preview allows to open Preview window for the entire block of loaded images considering data processing res ults Preview current sheet allows to open Preview window for the selected sheet of mosaic Rebuild brightness adjustment allows to rebuild local adjustment after cutlines change Build full mosaic is used for start of mosaic building an
41. e Throughout this User Manual the orthomosaic created from the source images is referred to as output mosaic or mosaic e Throughout this User Manual the cutline is the boundaries of the specified area from the source image which will be included in the output mosaic The vector polygons are used for the cutlines creation The common boundaries of neighbouring cutlines are completely topologically coincide i e the areas of source images selected using the cutlines which are the single area without overlaps and holes e Throughout this User Manual the sheet is the output mosaic area which is saved in the separate output format file The vector polygons are used for creation of sheet boundaries 2 2 Features at a Glance The program provides the following features e Preparation for cutlines creation building useful areas clouds PHOTOMOD 5 3 GeoMosaic The cutlines creation in automatic mode to define the area of the source images which were be included in the output mosaic The global and local brightness adjustment of areas Smoothing area along the cutlines tot Merging area in the neighborhood of the cutline by tie points using the correlator Splitting into sheets of mosaic The output mosaic parameters settings and building mosaic 2 3 Input data The sources data for mosaic creation in the GeoMosaic program are the orthoimages referenced to the coordinate system in the files of following
42. ed in vector file with x data extension in active profile re sources Save allows to save tie gcp points to vector file in active profile resources with the same name and x data extension Save as allows to save tie gcp points to vector file in active profile resources with different name and x data extension Add ground control points opens sub menu for measurement of GCP in manual semi automatic and automatic modes Add tie points opens sub menu for measurement of tie points in manual semi automatic and automatic modes Remeasure allows to edit a measurement of selected tie gcp point Show windows by marker allows to open 2D windows with initial images con taining marker position Show windows by current point allows to open 2D windows with initial images con taining selected tie point Finish measurement used to close the 2D windows with the sources im ages and return to the Preview window for viewing the results of cutlines stitching by measured points Show residuals used to display residuals reveals bad points hav ing error vectors noticeably different from other points in size and direction Delete by maximal residual used to remove blunders of tie gcp points automatic measurement allows to reject those points which measurement value results in shift of images relat ively each other at distance more than specified in meters Parameters allows to setup correlator s parameters f
43. elds of working area which is defined by created useful areas 7 Inthe Method section choose one of the following methods of automatic cutlines creation Fast Voronoi diagram this method consists in splitting all the area of cutlines creation into polygons based on proximity to nadir points or if the latter are not given to image centers Detailed more fine algorithm for Voronoi diagram building In this case edges of Voronoiy s diagram belonging to two different images are replaced by broken lines which provide optimal images joining You can also adjust the following settings Non dimensional Maximal shift from Voronoi diagram parameter from zero to one at zero value you will get Voronoi diagram if the value is one maximal area is used for cutlines creation This algorithm allows to calculate es timation function on images Cutlines are created on lines in such a way that maximal value of this function on them is minimal among all possible lines min imax method The function consists of several summands with specified weight from zero to one each The Weight of objects outlines parameter allows to avoid separate objects houses during cutlines creation or to cross them at the right angle in case of roads This parameter has the maximal value on objects 30 PHOTOMOD 5 3 GeoMosaic 10 11 12 outlines The Weight of images heterogeneity parameter allows to avoid small cities and settlem
44. end the capabilities of editing cutlines Basing on the attributes the cutline gets the name and type Cutline type defines a content of inside cutline area main image reference image background for blurring of some terrain objects or transparent area In the case where the imported objects have another at tributes the capability of setting attributes provides the correct import of cutlines created in third party software By default the Cutlines layer has following attributes used to store information about cutlines image attribute for full path to image file e image title attribute for cutline name 33 PHOTOMOD 5 3 GeoMosaic e rgn type the cutline type attribute e ref image name the filename of reference image attribute used in the cutline area For viewing and editing the Cutlines layer attributes choose Cutlines Parameters The Cutlines parameters window opens To add new attribute click the _ button input new attribute name and click OK To match cutlines with images using just images names check the Reference by image name only checkbox Editing of vector layer attributes including editing of attribute name and attribute deleting are performed in the Objects attributes Window Objects attributes You may need to change attributes and cutlines matching using images names if for example you are going to perform cutlines import in order to bring in correspondence attributes of impo
45. ended to measure the tie points far away from the cutlines to avoid the rough transformation of images Also it is not recommended measuring points on the extended objects for example on the roads buildings and low contrast areas The current section contains the following information Tie points measurement GCPs measurement Editing measurement of points Attributes of the Tie points layer Brief description of the Ties menu 11 1 Pre setting Choose the Window Toolbars Tie points for quick access to the options of GCP tie points measurement The Tie points toolbar opens which buttons are partially duplicated in the Tie points menu see buttons description in Section 11 9 To display of images transformation in the result of stitching by the tie points fast re freshing of images perform the following actions in the Preview window before the start working Choose the Mosaic Parameters The Mosaic parameters window opens Choose the Mosaic tab e Set the Use tie points checkbox Previously define the transformation type which is used automatically on the edges of block images while the accumulation of GCPs measurement data Perform the following actions Choose the Mosaic Parameters The Mosaic parameters window opens Choose the Mosaic tab 48 PHOTOMOD 5 3 GeoMosaic e Set the Apply shift only to image edges when use GCPs checkbox to apply the shift on the Mosaic tab Clear this che
46. ents during cutlines creation including also urban blocks since at certain pixel size settlements look more heterogeneous comparing with forested areas agricultural fields etc The Weight of images correlation parameter the bigger the differences of point s neighborhood on adjacent images the bigger this component for each point The Weight of images brightness parameter is used for cutlines creation in darkened areas of images where human eye is less receptive to images inconsistency In case of detailed method you can also use the Use DEM parameter to consider terrain relief for cutlines creation It is recom mended to use DEM when project images contain mountainous areas and you need to create cutlines not on mountains peaks but on lowlands In case of urban areas it is not recommended to use DEM optional In the Thin out precision input field specify thin out coefficient of polylines in meters Polylines with segment length of 1 pixel appear in the process of cutlines creation Then they are thinned out so that the thinned lines were deviated from the sources by not more than the specified value in meters on the ground In the Use central points section define location of images centers which are used for Voronoi diagram creation Nadir points recommended if any or Images centers considering or not images background the Centers of images without background checkbox optional In the Create cutlines not closer than from usef
47. ere are areas with input background color inside the image 24 PHOTOMOD 5 3 GeoMosaic 5 A A O a Fig 7 Source image 2 Check the Unique background color checkbox in the Parameters window to consider insets during useful areas creation Closed areas of black color inside image are not considered as a background and are included to useful area NA ON YT la a o ja o Fig 8 Useful area in case of unique background color 25 PHOTOMOD 5 3 GeoMosaic 3 Clear the Unique background color checkbox in the Parameters window to create useful areas roughly almost without considering insets Closed areas of black color inside image are not considered as a background and are included to useful area 4 o e OnE IO O Fig 9 Useful area in case of non unique background color 9 3 Clouds calculation In order to calculate cloudy areas and exclude them during cutlines creation the system provides possibility of their automatic recognition and calculation Cloudy areas are vector polygons on the Clouds layer A You should create useful areas prior to creating of cloudy areas see Section 9 2 Use the Cutlines gt Clouds menu to create cloudy areas s Please remember that cloudy areas along with other information such as background color useful areas cutlines are saved in files with images description x feat that are placed near images files Table 9 Brief description of menu Clou
48. erlaps or holes It is not recommended to draw cutlines over elevated objects bridges buildings utility poles etc Otherwise these objects may be lost or appear distorted in the output mosaic It is not recommended to draw cutlines along extended objects for example along road forest edge i e along brightness edges on the images Otherwise the blur may appear in the resulting mosaic It is recommended either to intersect the extended objects at angle close to the direct or create the cutline at the sufficient distance from the edge of extended objects It is desirable that the statistics got the necessary information on each color channel to prevent the abnormal brightness areas during the local brightness adjustment Thus it is recommended to draw the cutline so that it passes through areas of different color or it may as well be drawn along the line separating such areas but far enough from it 9 2 Creating areas without background useful areas Useful area contains substantial part of image and excludes input background of image You can use useful areas as well as setup of input background color transparency to create cutlines Moreover useful areas are necessary for calculation creation of areas with clouds that are also considered during creation of cutlines Useful areas are vector polygons on the Useful areas layer You can calculate useful areas automatically and then edit them manually if needed There is no need to
49. es files Click the Open button to add selected images to mosaic project 8 2 Images preview To view added images in the Preview window choose the Mosaic Preview or click the Q button By default added images are shown immediately in the Preview window OP To open added images automatically in the Preview window during their adding to mosaic project set the Open preview immediately option seeSection 14 1 All mosaic project images are inscribed into rectangular raster of predefined color which is called mosaic background color later on This color is visible on output mosaic sheets It is black by default but it is not shown in the Preview window it is transparent for convenience 13 PHOTOMOD 5 3 GeoMosaic T You should set the Transparent mosaic background on preview option in the Preview window to manage mosaic background color visibility seeSection 14 1 T Use the Background color option to select mosaic background color see Section 13 1 1 From the other hand initial images have their own background color which is called images background color later on For correct images binding during mosaic creation you should exclude this background i e setup the transparency of images background color see Section 8 3 933 1 24 Preview tas Eo AAA Ra main Navi t 3 Marker 3 4 06 Useful areas E amp Clouds E amp Ground control and O amp Miscellaneous E amp sheets E
50. es of mosaic used for adjustment Lack of these points leads to brightness anomalies when moving away from the cutlines Excess number of tie points causes the brightness un adjustment along the cutlines Search additional fragments with 50 overlap f you have insufficient statistics amount the ping parameter allows to shift fragments grid in relation to cutlines with 50 overlap that may help to collect additional local adjustment statistics Minimal valid part in fragment The parameter is used for space borne images processing which usually have small overlap areas In this case a cutline may lie too close to the image edge so that image background falls into cutline area In this case the parameter 68 PHOTOMOD 5 3 GeoMosaic Parameter Description defines a minimal part of terrain image in a frag ment at which the local adjustment statistics will start to collect If after cutlines editing you need to rebuild only local adjustment choose the Mosaic gt Rebuild local adjustment 13 1 3 Mosaic output parameters If you would like to setup options of mosaic output choose the Mosaic Parameters or click the 44 button The Mosaic parameters window is open Click the Output tab alla Mosaic Brightness adjustment Output misc Map scale 2000 0 A Calculate map scale Create MS TIFF Extended ERDAS Imagine IMG IGE Create Geo TIFF Create KML Compression TIFF J
51. eters BI xj Correlation parameters Fragment size 20 A pix Search area 10 0 m Correlation pixel size AA META Max auto correlation 40 0 Min correlation 0 4 s Min fragment RMS 10 0 Automatic search parameters Distance between points 20 0 m Random shift from cutline 2 m Delete all points with same type before searching Fig 25 Points measure parameters window Table 17 Description of point s measurement parameters Parameter Description Fragment size Allows to define a size in pixels of a fragment which contains the point indicated on one image in cutline neighborhood Search area Allows to define a search area in meters of appro priate point on another image A search area is scanned by defined fragment mask to find a similar point Correlation pixel size Allows to define a value of a pixel size of images where correlation to be performed if the images have different pixel size Max auto correlation Allows to control auto correlation of a point i e a degree of point s uniqueness in some its neighbor hood on the left image The more the auto correla tion radius value the less the point s uniqueness and the more probable its incorrect comparison with the right image even when the correlation coefficient is high Min correlation Allows to define minimal acceptable value of correl ation coefficient Min fragment RMS Allows to define a brightne
52. he reference image corresponding selected terrain point on the source images For this move the point use the mouse and pressed Ctrl key Press Enter to confirm measurement 5 Hide the layer with reference image in the Layer manager 6 Repeat the 3 item to measure point on the neighbour image 7 Repeat the 4 item Hence we get a tie point on the source image with coordinates taken from the reference image The source images in the Preview window are refreshed taking into account the stitching by added point For measuring GCPs in the semi automatic mode choose the Ties Add ground control points Add with correlation duplicated by the button of the Tie points toolbar For automatic searching of corresponding points on the reference image and source images of mosaic project choose the Ties Add ground control points Add auto matically duplicated by the ire button of the Tie points toolbar 11 5 Parameters of points measurements For measuring of tie ground control points in semi automatic and automatic mode you can use and adjust the following correlator parameters For automatic mode you can use parameters for automatic points search in cut lines neighborhood To view and setup parameters of tie points measurements choose the Ties Parameters or click the 7 button on the Tie points toolbar The Points measure parameters window opens 55 PHOTOMOD 5 3 GeoMosaic E Points measure param
53. ify maximal deviation from homogenity from O to 100 where O homogeneous area Dispersion upper boundary allows to define range of dispersion in clouds to specify upper dispersion threshold from O to 100 Clouds edges thinning allows to define a degree of clouds boundaries thinning filtering of vector polygons vertices from 0 to 100 where 0 boundaries without thinning 100 rough maximally filtered boundaries Minimal cloud area allows to define minimal area of cloud when this area is not considered as cloud i e clouds of small size will be excluded from selection Clouds offset allows to setup offset in meters around the cloud detected For selected images only allows to calculate cloudy areas for selected images only Force recommended allows to recalculate already calculated clouds and re fresh information in files with images description x feat 28 PHOTOMOD 5 3 GeoMosaic 3 Click OK or click the Distributed processing button to search and calculate cloudy areas 9 4 Automatic cutlines creation It is recommended to create cutlines in automatic mode The program provides two al gorithms of automatic cutlines creation Voronoy diagram and more detailed algorithm which consider DEM data if any We recommend to use at the beginning fast method Voronoy diagram If you are satisfied with the cutlines quality created by this method edit the cutlines in vector objects dra
54. ines for preview and mosaic creation See also a description of means of images order change when creating mo saic without cutlines in Section 8 5 Use source rasters base layer only Allows to use a base layer of initial images pyramid if the mosaic is created using docking not over lapped images without creating cutlines If this op tion is off the program uses a pyramid layer corres ponding to specified resolution i e the pyramid layer is taken based on the Cell size parameter value Use tie points Allows to immediately show results of merging along cutlines in the Preview window when measuring tie gcp points Apply shift only to image edges when use GCPs Allows to define a type of transformation which is applied automatically on the images block edges while collecting GCP measurements If the option is off projective transformation is applied if it is on just shift 63 PHOTOMOD 5 3 GeoMosaic Parameter Description Rotation angle Allows to setup a rotation angle in degrees of mo saic s images This option is used if a block of initial images has elongated shape and you need to re move unnecessary background area in rectangular window of created mosaic Transparent background inside cutlines Allows to use transparency for areas with input background color inside cutlines To apply this parameter it must be set transparency for background color of origin al images
55. ines of the list 3B Select all amp amp Unselect all E Invert selection Deleting of the selected images Select the images and click the M button Close the Images list window to refresh the block images in the Preview window Opening of the selected images in the separate 2D windows Select the images and click the Al button Obtaining information about the selected image Select one image and click the i button The Statistic window opens It shows the information about the selected image Canceling transparency of the selected images background color Select the images and click the Bf button Close the images list window to cancel the transparency of the selected images background color in the Preview window Setting transparency of the selected images back ground color Select the images Define the input background color of the selected images Click the H button The Color window opens Select the input back ground color in the palette of the main or additional colors or click the Define color button to select the other color Click OK The input background color of the selected images is displayed in the Images list window list Close the Images list window to apply transparent background color of the selected images in the Preview window Showing tie points residuals of the selected image Click the amp button to show error vectors for selected image in case of stitching by
56. inform ation about selected sheet which is stored in the attributes of the Sheets layer 11 Stitching by tie points The program provides an option of tie points measurement for more precise correspond ence of cutlines area Adjustment of the project source images is the result of tie points measurement and transforming source images close to cutline Measuring ties points consists in defining correspondence between projections of the same terrain point on two or more source images of the mosaic project in the vicinity of cutlines Also the program provides the option of using reference image for measuring GCPs on the source images The reference image is the raster image on the same area but with more accurate georeference then source images of mosaic project l e the reference image is used as standard for measuring GCPs from which is defined the correspond ence between the source images The coordinates of terrain point on the reference image is assigned the same terrain point on the source images 47 PHOTOMOD 5 3 GeoMosaic The Tie points vector layer with the attributes for data storing about measured points is provided for storing the GCPs or tie points The program provides three modes of tie GCPs measurement Manual mode measurement of points without correlator e Semi automatic mode measurement of points using correlator Automatic mode measurement of points using correlator ES It is not recomm
57. ing subfolders checkbox to search for images in subfolders of selected folder Click OK to start automatic search for raster format files in specified folder and to add images found to mosaic project Adding source images from the resources of the Choose the Images gt Add images from files or Windows file system click the button The Open window opens where you can see Windows file structure Choose images files manually using Shift and Ctrl hotkeys for mul tiple files selection Click the Open button to add selected images to mosaic project Adding source images from a file system folder Choose the Images gt Add images gt From files from folder The Add images from folder window opens Click the _ button The Browse for folder window opens where you can see Windows file structure Choose folder containing source images files and click OK to return to the Add images from folder window The path to chosen folder is dis played in the Folder field Check the Search in subfolders checkbox to search for images in sub folders of selected folder Click OK to start automatic search for raster format files in specified folder and to add images found to mosaic project Adding source images from text file which contains Choose the Images gt Add images gt Add from files the file names list of images list The Open window opens Choose text file cre ated in advance which contains a list of full network paths to source imag
58. ive profile Adding images from the Windows file system Irrespectively of the source images placement the following modes of selecting raster images to load in project are possible e Selection of images manually Automatic selection of supported raster files in the specified folder and its subfolders optional ES Automatic selection is recommended when large number of source raster files are located in the folder along with files of other formats and or when source images are located in several subfolders of the selected folder Besides images may be added via list of filenames stored in a text file The Images menu allows to load images in the project Table 4 Adding images in mosaic project Modes of loading images Actions Adding source images from the resources of the Choose the Images Add images from resources active profile or click the button The Open window opens where you can see structure of active profile re sources Choose images files manually using Shift and Ctrl hotkeys for multiple files selection Click 12 PHOTOMOD 5 3 GeoMosaic Modes of loading images Actions the Open button to add selected images to mosaic project Adding source images from a resource folder Choose the Images Add images From re sources from folder The Select folder window opens where you can see resources tree of active profile Choose a folder containing source images files Check the Includ
59. le El Save as This menu item allows to save the opened mosaic project in the new file and the x gmos extension in the resources of active profile El Save work environment This menu item allows to save the project work en viroment a set of project opened layers e g vector data raster images opened to transfer GCPs or DEM in a file x work in active profile resources El Load work environment This menu item allows to load project work environ ment data from a file x work saved in active profile resources Statistic This menu item allows to open the project statistic window 8 Loading images in the mosaic project The step forming of source images block follows after the mosaic project creation It implies a number of following actions 1 Loading source images and forming block images of mosaic project 11 PHOTOMOD 5 3 GeoMosaic 2 Setting transparency for the background color of source images to exclude the background from the output mosaic The current section contains the following descriptions Modes of the loading source images View images e Setting of the source images background color Editing of the block images Working with the list of images Brief description of the Images menu 8 1 Adding images Depending on the source images placement the following modes of the loading images in mosaic project are possible Adding images from the resources of act
60. mage field Background to color the cutline area with output mosaic background color see Sec tion 13 1 1 that is used for coloring of any terrain objects on images Transparent without filling to apply transpar ency to the cutline area Source image The field value corresponds to the ref im age name attribute value and shows full path to file of reference image fallen into cutline area if the image is used for the cutline with the Transparent from reference image type In or der to select a reference image use a list of pro ject images You can also perform the following actions to view and edit a list of attributes of the Cutlines layer and attributes values of the selected cutline 1 Select a cutline in the Preview window 2 Choose Window gt Objects attributes or click the 4 button in the Vectors toolbar The Objects attributes window opens E 0 D Bgg image text image title text ref image name text file Razuvanovang data E GeoMosaic GCP NewzZealand BAD 67B tif rgn type integer 4 2 Fig 15 Cutlines attributes Default attributes may have the following values e for image full path to main image file 35 PHOTOMOD 5 3 GeoMosaic e for image title cutline name is automatically generated from name of file with source image forrgn type cutline type o 1 complies to the Image type o 2 complies to the Transparent from refere
61. mosaic If you would like to specify local brightness adjustment parameters click the Parameters button see Sec tion 13 1 2 1 Brightness adjustment cell size Allows to specify a size of a cell in pixels which is used for brightness estimation and correction Not use for brightness adjustment Allows to omit brightness adjustment on mosaic areas specified by borders of vector polygons Vector polygons created in advance are saved to file of active profile resources Click the _ button to open the file with polygons Seams feathering Allows to smooth seams on images cutlines and in the narrow zone around The size of smoothing zone along cutlines is defined by the Smooth aperture size parameter Set the Consider image edges when use feathering option to smooth seams on the edges of images block where may be no statist ics enough for correct smoothing Check transparency inside cutlines Allows to consider image color in a cutline coincid ent with input image background If the option is set the transparency for cutline sections with the same color is applied Otherwise the cutline will include sections with background color 13 1 2 1 Local brightness adjustment Local brightness adjustment is a transformation applied along cutlines of images that are merged into mosaic with a smoothing going down to the image central point and mosaic edges Thus during local brightness adjustment each pixel of the im
62. n 2 2 i aie apre e edi eod eap es es pia ceste tv od e od Teo e DE dde Ve ges ue b dau e EUR a 21 9 1 Requirements of the cutlines creation ssssssssssssessseee m 22 9 2 Creating areas without background useful areas ssseeee em 22 9 3 Clouds calculation dtt eerte e s ettet ran deen eR TOR dong ae en Ta de Aa TH 26 9 4 Automatic cutlines creation ssssssssssssssseeeem I eem n errem 29 9 5 Cutlines creation in distributed processing mode sssesee eH 32 9 6 Editing cutlines one od eo e e LHP Eee o a Le edd eb ds 33 9 7 Using attributes of the Cutlines layer 2 00 eee tere etter eee Hee 33 9 8 C tlines menu ici aep oues ee pie ee eoe edades Baan eto debo Le bo ee dedu rud ede 36 10 Splitingiito ShestS stc tan A Ed pi Aden pins 37 10 1 Splitting into sheets by the specified parameters oooooccooccccoccccncccconcnnnncccnnnnnnnannnoncncnnons 38 10 2 Creating the single sheet covering all images block sse 40 10 3 Spitting by Images i ieri ced ee dl Rr eid ege dad Les nu edd Re e ad ng ea ads 40 10 4 Creating the single sheet with arbitrary boundaries sss 41 10 5 Editing sheets car er bd Di e aet OE see d dede Ene od debe Od dea 41 10 6 Working with the attributes of the Sheets layer ssssssseem 41 10 7 Saving sheets eR Her e i lei i lo e i eds 44 10 8 Setting output parameters
63. n 10 6 10 6 Working with the attributes of the Sheets layer Each sheet is given the name and defined sheet status using the attributes of the Sheets layer The capability of presetting provides correct import of sheets which were created in third party software in case when the imported objects have another names of attrib utes for storing information about sheet see Project processing User Manual 41 PHOTOMOD 5 3 GeoMosaic By default the Sheets layer contains the following names of attributes create for storing information about sheet status e sheet name for storing sheet name Choose the Sheets gt Parameters or click the button in the Sheets toolbar for changing default attributes names of the Sheets layer before the splitting into sheets The Parameters window opens Choose the From attribute option and define the new name of attribute for storing sheets name select the name from list or specify it using the _ button The same way change the name of attribute for storing information about sheet status in the Attribute name input field of the Sheets activity panel Click OK Thus after the completion of splitting process the data about the sheet name and sheet status will be stored in the defined attributes irrespective of splitting mode AE Sheet names From attribute sheet name e C Serial numbers Number of vertices Arbitrary C value 4 A Sheets
64. n 10 7 10 4 Creating the single sheet with arbitrary boundaries Creating the single sheet mode allows to create it from the any part of block images Perform the following actions for creating the single sheet 1 Choose the Sheets gt Full mosaic sheet or click the F button in the Sheets toolbar 2 Stretch the rectangle in the Preview window along with pressed Shift key The boundaries of single sheet are the single vector polygon with attributes of sheet name and sheet status They are created in the Sheets layer Mosaic is a sheet name The sheet status is active i e sheet is selected for creating output mosaic file See also Section 10 5 and Section 10 7 10 5 Editing sheets The following capabilities are provided for editing the Sheets layer Refreshing sheets take into account while changing the parameters or splitting mode The program provides saving the already created sheets boundaries in the file of the profile resources while refreshing sheets The Sheets layer is refreshed automatically with take into account the specified parameters or splitting mode after the confirmation or cancellation saving Deleting all created sheets e deleting all vector objects from the Sheets layer Choose the Sheets Clear for deleting all sheets boundaries Manual editing drawing vector objects see Project processing User Manual Editing sheet s features values of attributes name of a sheet is it active or not See Sectio
65. n active status to the rest of sheets choose the Sheets gt Set sheets status by useful areas or click the llli button In order to use provided modes of sheets activation you should activate the Sheets layer and choose in the Sheets Sheets activation mode menu one of three modes Select for activation by default this mode assumes standard selection of sheets and further assigning them active or non active status In order to select sheets drag a rectangle along with pressed Shift key and use one of group selection modes from the Tools toolbar By first sheet this mode allows to change sheets status without sheets selection When you drag a rectangle in this mode along with pressed Shift key the sheets that fall into the rectangle obtain the status of the first sheet of the rectangle created Use selection mode this mode allows to change sheets status without sheets se lection too At that status of sheets that fall into rectangle created depends on a group selection tool selected in the Tools toolbar To select sheets use the following modes To select active sheets choose the Sheets gt Select active sheets or click the Eg button To select non active sheets choose the Sheets Select non active sheets or click the E button 10 7 Saving sheets Choose the Sheets Save for saving sheets boundaries and specify the filename of internal vector format in the resources of active profile
66. nce image type o 3 complies to the Background type o 4 complies to the Transparent without filling type e for ref image name full path to reference image file providing that the cutline type is the Transparent from reference image i e rgn type 2 9 8 Cutlines menu Table 12 Brief description of the Cutlines menu Menu Cutlines Purpose Clear Allows to delete cutlines i e to clear the Cutlines layer completely without closing of this layer Open allows to open cutlines saved earlier in vector file x data in active profile resources Save allows to rewrite vector data file x data which contains cutlines Save as allows to save cutlines in vector file x data with new name Useful areas Allows to calculate useful areas in automatic mode Clouds Allows to calculate cloudy areas in automatic mode Build allows to setup parameters of automatic cutlines creation and to start cutlines build operation after which vector polygons on the Cutlines layer are created Area to cutlines addition mode allows to add areas to cutlines during their editing as follows select a cutline and draw rectangular or arbitrary area using group selection tools along with pressed Shift key Parameters Allows to redefine attributes of the Cutlines vector layer Cutline properties is used to view and edit attribute values of selected cutline Check cutlines is use
67. of status attribute will be 46 PHOTOMOD 5 3 GeoMosaic Sheets menu Purpose equal to 0 inactive status for boundaries of all sheets of Sheets layer Activate selected sheets This menu item allows to activate selected sheets for creating mosaic and creating output mosaic files i e the value of status attribute will be equal to 1 active status for boundaries of selected sheets of Sheets layer Deactivate selected sheets This menu item allows to exclude selected sheets from the mosaic creation and creation of output mosaic files i e the value of status attribute will be equal to 0 inactive status for boundaries of selec ted sheets of Sheets layer Set sheets status by rasters This menu item allows to select only sheets contain ing at least part of block image for creation of output mosaic files input background color on the images edges is taken into consideration i e the value of status attribute will be equal to 1 active status for boundaries of non empty sheets Invert sheets status This menu item allows to invert the status of all created sheets i e the value of status attribute will be inverted the 0 value is inverted to 1 and and vice versa for boundaries of all sheets of the Sheets layer Parameters This menu item allows to define the output paramet ers for creation of output mosaic Sheet info This menu item allows to obtain and modify
68. om resources from folder This menu item is used for automatic selection of all images from the specified folder of active profile and adding to mosaic project Add images Add from files list This menu item allows to use the text file containing the full network paths to the images useful when the project files are located in different local and network folders for adding the images to mosaic project Delete selected images This menu item allows to delete from project the images that are selected using selection of appropri ate vector objects for example source images boundaries cutlines areas without background Delete images outside active sheets This menu item allows to delete the images outside active sheets from mosaic see Section 10 l Project images list This menu item allows to open the added images list for editing list search images by name view the selected image and its properties define images background color show tie points residuals Open selected images This menu item is used to open in separate 2D windows those images with highlighted boundaries see Section 13 1 4 Check source images This menu item is used for the checking of the pro ject images the file presence georeference data presence the correct file format Create pyramids This menu item allows to create the overview pyr amid set for the fast images refreshing on screen the pyramids are
69. on the Useful areas layer see Section 9 2 29 PHOTOMOD 5 3 GeoMosaic Build and use by default allows to calculate useful areas automatically without display on the Useful areas layer and use these areas for cutlines creation 3 In the Clouds section choose one of the following options of clouds considering subtract or bypass during cutlines creation Not use by default allows to not use cloudy areas Use is used to use pre created automatically or manually cloudy areas on the Clouds layer Build and use allows to calculate clouds automatically without display on the Clouds layer and consider them during cutlines building in automatic mode 4 In the Attribute name input field specify the attribute name of the Cutlines vector layer where the full path to the image is stored by default image You need to specify the attribute to perform automatic matching of the cutlines with images prior to mosaics building or for preview creation 5 Check the Check clouds checkbox to exclude gaps in created cloudy areas in output mosaic The main idea of clouds check is that the system tries to use refer ence image to replace a cloud entirely or partially if the reference image does not contain the cloud in this place otherwise the cloud will stay on the output mosaic 6 optional In the Useful areas offset input field specify positive or negative value of distance in meters to crop add fi
70. or measure ments of tie gcp points in semi automatic or auto matic mode 58 PHOTOMOD 5 3 GeoMosaic Ties menu Description Point info shows brief information about selected tie gcp point 11 9 Tie points toolbar For quick access to options of tie gcp points measurements you can use an additional Tie points toolbar Some of its buttons duplicate items of the Tie points menu Choose the Window Toolbars gt Tie points to open the Tie points toolbar y iA o 8 8 15 ap Fig 28 Tie points toolbar Table 19 Brief description of the Tie points toolbar buttons Buttons Description n allows to clear the Tie points layer allows to measure ground control point in manual mode without correlator allows to measure ground point in semi automatic mode using correlator wre allows to run automatic search and measurement of GCP on the whole images block using correlator allows to measure tie point in manual mode without correlator allows to measure tie point in semi automatic mode using correlator auto allows to start operation of tie points automatic search and measurement for the entire images block using correlator A allows to edit a measurement of selected tie gcp point 88 opens 2D windows with initial images which contain marker position 8B opens 2D windows with initial images which contain selected tie point Pt used to close the 2D win
71. output mosaic and containing the information for mosaic referencing to coordinate system Swap X Y Allows to swap X Y coordinates to obtain output mosaic in left coordinate system Create georeference only Allows to create just georeference files of sheets without building mosaic sheets i e without files creation Set background color as transparent When saving the resulting mosaic in MapInfo format or Map 2011 you can set the background color which is shown in MapInfo system as transparent Save georeference as NonEarth Allows you to save georeference as NonEarth co ordinate system when saving the resulting mosaic in MapInfo format Used if MapInfo system does not support coordinate system of mosaic project File names Allows to open the Sheets files window to select format and target folder of output mosaic sheets see also a list of output formats in Section 2 4 13 1 4 Additional parameters If you would like to setup additional options choose Mosaic Parameters or click the 44 button The Mosaic parameters window is open Click the Misc tab 70 PHOTOMOD 5 3 GeoMosaic ll Mosaic Brightness adjustment Output Misc IV Save local adjustment Vector data coordinate system 1 Input source rasters coordinate system Output mosaic coordinate system Preview extents By source images By sheets C By images and sheet
72. p m Horizontally 0 0 A Vertically 0 0 A Sheets base name Sheet Sheet size m 3 Width 1000 0 x Height 1500 0 A Number of sheets Horizontally 10 A Vertically 6 A Attribute with sheet names sheet_name Sheets creation attribute create Fig 16 Parameters of sequential splitting 2 Define the splitting area parameters of sequential splitting and attributes name of the Sheets layer 38 PHOTOMOD 5 3 GeoMosaic Table 13 Description of the sequential splitting parameters Parameter Purpose Block extents This parameter allows to specify the area boundaries in meters for splitting Overlap This parameter allows to define the overlap size in meters by width and or height By default the sheets are created without overlap dock Sheets base name This parameter allows to define the sheets name prefix By default the Sheet is proposed The rest of the sheet name is generated by program automatically It contains the serial number of sheets row upward and serial number of the sheet in a row left to right Sheet size This parameter allows to specify sheet size in meters by width and or height The modifying sheet size leads to recalculation of sheets number in the specified splitting area Number of sheets This parameter allows to specify the number of sheets by width and or height The splitting begins from the bottom left corner of the specified split ting
73. pecify a type of filling outside of sheet boundaries in the output mosaic If the option is set this area is filled with mosaic background color Otherwise the images of adjacent sheets are used for the filling Raster offset of sheet Allows to specify a tolerance distance in pixels of raster extend beyond the sheet borders Geometry correction cell size Allows to setup a fragment size in pixels when creating mosaic using fragments with projective dependence The larger the fragment the faster the mosaic building and the lower the accuracy of output mosaic The value of 32 pixels is optimal for speed accuracy ratio Output raster channels Opens the window Output image parameters used for specifying of channels for output mosaic Build sheets by images Defines a content of sheets when creating a mosaic that is split on sheets by images see Section 10 3 If the option is on each sheet will contain the only image corresponding to the sheet i e the mosaic will be not created If the option is off each sheet will contain all images that fall into this sheet At that after splitting of sheets by images sheets names in attributes of the Sheets layer should be the same as images names The option is helpful when you only need to perform export of initial images into different coordinate system or export to files of other raster formats Use images without cutlines Allows to use images without cutl
74. refix Sheet serial number Number of vertices This parameter defines criterion of sheets selection for creating output files by number of vertices within sheets boundaries For selecting sheets by number of vertices choose the Value option and specify the number of vertices in the input field Otherwise choose the Arbitrary option In this case sheets selection by number of vertices within the boundar ies of created sheets is not performed Sheets activity This parameter allows to perform the selection of sheets for creating output files by the attribute values from the Sheets layer Choose the Create all sheets mode for creating all sheets irrespective of attribute values Choose the Create sheet with attribute 45 PHOTOMOD 5 3 GeoMosaic Parameters Purpose value mode by default and specify the attribute and value of it as criterion of sheets selection For example while selecting the 1 value for the sheets status attribute the output files for all active sheets will be created Choose the Do not create sheets with attribute value mode for excluding sheets which are satisfied the value specified in the Attrib ute name field of specified attribute in the Attribute value field 10 9 Sheets menu The Sheets menu is used for splitting mosaic into sheets for saving their in the separate files of selected output format The sheets boundaries are the vector polygons in the Sheets layer
75. review window 1 Choose the Service gt Settings or click the li button The Settings window opens 74 PHOTOMOD 5 3 GeoMosaic 2 Click the Preview on the Geomosaic tab El GeoMosaic El Windows Show rasters in zoom greater than Marker block scheme Zoom Redraw preview on editing i Control Modules v Open preview immediately 7 Stereo Skipped sheets fil color E Vectors Skipped sheets color transparency 2 7 Labels i Elevation labels i i Point numbers Coordinate transform 0 v Fast view in zoom gt 100 IV Transparent mosaic background on preview O 100 Preview extents Raster Undo Backups t Auto save System C By source images C By sheets By images and sheets Fig 36 Preview parameters Table 28 Description of preview parameters Parameter Description Show rasters in zoom greater than Allows to setup a zoom at which a visualizing of mosaic project images in the Preview window be gins Transparent mosaic background on preview Allows to setup a transparency of output mosaic background visible in the Preview window Redraw preview on editing Open preview immediately Allows to set automatic refreshing of mosaic data in the Preview window during editing of vector ob jects cutlines and change points Allows to show added images in the Preview win dow right away
76. rted objects and attributes of the Cutlines layer see description of vector data import in the Project processing User Guide ala Attribute with cutlines name Attribute with cutlines type rgn type n Attribute with reference image name ref image name ki Fig 13 Attributes of the Cutlines layer Perform the following actions to view edit cutlines properties values of cutlines attrib utes 1 Select a cutline in the Preview wind 2 Choose Cutlines Cutline properties The Cutline info window opens Cutline info Acl xl Main image file Razuvanovangjdata E GeoMosaic_GCP NewZealand_BAD 675 tif zi el Cutline type Image y Source image M 1 Fig 14 The attributes value of cutline Table 11 Cutlines properties Cutline property Description Main image The field value corresponds to the image attribute value and shows full path to file of main image for which the cutline was created To edit the field 34 PHOTOMOD 5 3 GeoMosaic Cutline property Description value open the list and select another image of the project To return to current main image click the 3E button Cutline type The field value corresponds to the rgn type attrib ute value and shows one of the following cutlines types Image to use main image in area of cutline Transparent from reference image to use reference image fallen into cutline area in area of cutline specified in the Source i
77. s Fig 34 Additional options Table 25 Description of miscellaneous parameters Parameter Description Save local adjustment Allows to turn on off saving of parameters and set tings of local brightness adjustment to file of mosaic project Vector data coordinate system Allows to select input or output coordinate system of a project for storing of vector data cutlines sheets boundaries tie points etc It is recommen ded to select output coordinate system by default since it is impossible to re calculate coordinate system during sheets creation Coordinate system of initial images and output mosaic are specified on the Mosaic tab Preview extents The panel allows to define a type of mosaic project data to be shown in the Preview window if sheets borders are out of initial images block after coordin ate system re calculating for instance Choose the By source images option to show images of mosaic project choose the By sheets option to show sheets borders vector polygons choose the By images and sheets option to show both sheets borders and project images 71 PHOTOMOD 5 3 GeoMosaic 13 2 Creation of output mosaic sheets For creation of resulting output product georeference files and sheets of mosaic or thophotos in specified coordinate system and scale perform one of the following ac tions To create output orthophoto for current sheet perform the following o On th
78. s vector data X DATA internal vector format in the active profile resources External georeference data for mosaic sheets PHOTOMOD GEO Mapinfo TAB ArcWorld TFW PBW in Windows file system Mosaic sheets orthoimages TIFF u GeoTIFF TIFF TIF Windows Bitmap File BMP ERDAS IMAGINE IMG e NITF NITF JPEG JPG JPEG PNG PNG Microstation DGN JPEG2000 JP2 PCIDSK PIX PHOTOMOD MegaTIFF PRF VectOr Raster Maps RSW in Windows file system 3 Preparation Define the folder in which are placed the sources data before the beginning work in the program The program allows to place the files with the source data in the folders See PHOTOMOD system User Manual PHOTOMOD 5 3 GeoMosaic of Windows file system as well as in the profile resources Activate this profile when the source images placing in the profile resources Supported file formats list of source images see in Section 2 3 Description of resource system see in the PHOTOMOD system User Manual 4 Start of work Do one of the following actions to start the program Choose the Start Programs to select the Geomosaic program Double click the PHOTOMOD Geomosaic icon on the desktop Choose the Geomosaic in PHOTOMOD System Monitor context menu in the Windows system tray by clicking the button Start the PHOTOMOD system and choose the
79. s layer Misc The menu is purposed for additional data retrieving grid of fragments which is used to gather statistics for local brightness adjustment source images boundaries building of images layout with or without the background map of cloudless coverage map of cutlines coverage used to detect gaps in coverage The rest of data except for maps of cov erage are vector objects and are located on the Miscellaneous layer Mosaic The menu is purposed for defining the output para meters of mosaic and creating the sheets of mosaic with saving in output format files Vectors The menu is purposed for creating editing import ex port of vector data See the menu description in Project Processing User Manual Edit The menu is purposed for modes choosing to select and draw vector objects to transform curves re peat cancel the last operation See the menu descrip tion in Project Processing User Manual Service The menu is purposed for applications launching additional data loading general parameters setting coordinate system editing etc See description of menu in Project processing User Manual Window The menu is purposed for opening the optional toolbars and windows new 2D window Marker and Measurements windows Objects attributes window See description of menu in Project processing User Manual Help The menu is purposed for starting of Help system Exit The menu is purpo
80. s layer To view point s attributes data perform the following actions 1 Make the Tie points layer editable and select a point 2 Choose the Window gt Object attributes The Object attributes window is open xf Ooese image_hame_0 text il image name 1 text file Fazuvanovang data E GeoMosaic GCP Newzealand BAD B70 tif image x 0 float 8 4242 219987 image x 1 float 8 2610 824987 image y U float 8 5543 234988 image y 1 float 8 3961 147488 images count integer 4 2 point name text tie 1 tie type integer 4 0 Fig 27 Point s attributes data Point s attributes contain the following data image name image number contains a path to one of the image files where the point is measured image x image number contains X coordinate of the point on one of the im ages e image y image number contains Y coordinate of the point on one of the im ages 57 PHOTOMOD 5 3 GeoMosaic e image count shows a number of images where the point is measured e points name contains a name of point with tie prefix for tie point and GCP for GCP lie type contains information about type of point with O value for tie point and 1 for GCP 11 8 Ties menu Table 18 Brief description of the Ties menu Ties menu Description Clear allows to delete all tie gcp points from Tie points layer Open allows to open tie gcp points previously sav
81. s toolbar Tie point may be measured by correlation in one of the fol lowing ways In case of successful correlation the tie point is added on the Tie points layer The images of the Preview window are refreshed taking into account coinciding cutlines areas by the specified tie point Repeat the 1 and 2 items for measuring new tie point or edit the point see Section 11 3 The message about the point is far away from the cutlines is displayed Select the another terrains point closer to the cutlines and repeat the 1 and 2 items Change the corresponding correlation parameters if the message about the low correlation coefficient and or about high autocorrelator coefficient is shown see Section 11 5 or select more contrast point on terrain and repeat the 1 and 2 items 50 PHOTOMOD 5 3 GeoMosaic Es 3 1 1 Preview a mo Ae E A e eE E ah 88 S 914 18 gr Marker Tie points t Miscellaneous Sheets Cutlines Raster BAN O NN Y ANO ars jo lao 2590266832995 m 6585520 403995 m 0 000000 m R 112 G 122 B 074 Fig 22 Coinciding source areas of cutlines E 3 1 1 Preview Bei A W Miscellaneous E Sheets W Cutlines Raster 3 0 dl 01 p Jr f es Sle p590220 432995 m 6585581 003995 m 0 000000 m R 197 G 198 B 189 Fig 23 Stitching areas from two tie points
82. saving clouds layer v Add to project images with same names IV Clear layer before single sheet creation i a Marker block scheme Zoom Backup depth 2 A j Control Vector data link to the project Modules s i Stereo IV Show objects from current image DEM Switch off computer after mosaic is built Et Vectors PHOTOMOD GeoMosaic exit affirmation io e Labels E i Elevation labels I Use saved mosaic settings gt Point numbers Full cache size 256 Mb EN Foordnalertans m Restrict cache size from 300 images Raster i Undo Maximal number of simultaneously opened images es d Fig 35 Common parameters 73 PHOTOMOD 5 3 GeoMosaic Table 27 Description of common parameters Parameter Save local adjustment Description Allows to turn on off saving of parameters and set tings of local brightness adjustment to file of mosaic project Create backup Allows to setup automatic save of mosaic project backups to active profile resources Vector data link to the project Allows to provide correct work with project when external vector data loaded in project is used e g sheets cutlines Allows to save in the first time all external data with names attached to project name automatically e g project name sheets x data Show objects from current image Allows to display vector objects relating only to im age opened in the Images preview window see Section 8 2
83. sed for closing of GeoMosaic program 6 Workflow of mosaic creation Creation of mosaic implies a number of following actions 1 Gathering of input data see Section 3 PHOTOMOD 5 3 GeoMosaic 10 11 12 13 Starting of Geomosaic program see Section 4 Creating of mosaic project see Section 7 Loading of images in the mosaic project images adding and optional setting of transparency for the input background color of images see Section 8 Defining of channels set for mosaic ES Use the Mosaic tab in the Mosaic parameters window to define the channels see Sec tion 13 1 1 Defining of the output coordinate system for mosaic and using it for storing of vector data the cutlines sheets boundaries and tie points ES The output coordinate system for mosaic is defined in the Mosaic parameters window on the Mosaic tab see Section 13 1 1 Use the Misc tab to specify the save parameters of vector data in output coordinate system see Section 13 1 4 optional Creating areas without background and areas with clouds in order to consider these areas during cutlines creation see Section 9 Cutlines creation and editing see Section 9 A You do not need to create cutlines if you have block of initial images with joining boundaries i e if images block is without overlaps and gaps optional Adjustment of mosaics area global and local brightness adjustment smoothing area along the cutlines
84. see Section 13 1 2 optional Stitching of the area from the tie points in the cutlines region manually or using correlator in the automatic semi automatic modes see Section 11 Splitting of the images area into sheets and selection for creating of output files see Section 10 Defining of the output parameters for mosaic creation pixel size map scale file format for the mosaic sheets and etc see Section 13 1 1 and Section 13 1 3 The mosaic creation also in the distributed processing mode with saving of the mosaic sheets in the files of selected format see Section 13 2 7 Mosaic project creation Choose the Project gt New or click the 5 button to create the mosaic project Six blank vector layers are created automatically and displayed in the Layer manager 10 PHOTOMOD 5 3 GeoMosaic Useful areas Clouds Ground control and tie points Miscellaneous e Sheets e Cutlines 7 1 Project menu Table 3 Brief description of Project menu Project menu Purpose 3 New This menu item is used for creation of the new mo saic project Open This menu item is used to open the saved mosaic project from file with the x gmos extension in the resources of active profile Recent This menu item allows to choose and open one of recent projects A Save This menu item allows to save the opened mosaic project in the file with the same name and the x gmos extension in the resources of active profi
85. see Section 8 3 Align sheets by common grid Allows to define the transformation type Normal Slide Projective witch applies on edges of images block automatically while data about measurement of GCP accumulates Filter change points Allows to filter overmuch change points in accord ance with error vector Source rasters background color range Allows to define a deviation from selected back ground color of initial images i e to specify a range of color existing in initial images background see Section 8 3 Input coordinate system Allows to define coordinate system of initial images Output coordinate system Allows to define coordinate system of output mosaic If you would like to re calculate an output mosaic into different coordinate system it is highly recom mended to specify output coordinate system before splitting it into sheets see Section 10 13 1 2 Brightness adjustment parameters If you would like to adjust brightness and contrast features of cutline areas during their merging choose the Mosaic Parameters or click the 4 button The Mosaic paramet ers window opens Click the Brightness adjustment tab allowing to setup the options of global brightness adjustment of output mosaic to turn on local brightness adjustment and to feather seams in cutline s areas Global brightness adjustment means transformation equally applied to all pixels of each source image Local brightness adju
86. show in the Preview window boundaries of source images with background You may use the boundaries for cutlines creation or for images selection in order to show them in separate 2D windows using Images Open selected menu item Source images useful areas allows to show in the Preview window boundaries of source images without background You may use the boundaries for cutlines creation or for images selection in order to show them in separate 2D windows using Images Open selected menu item 13 Mosaic creation Perform the following actions to build mosaic 1 If some mosaic s areas differ considerably in brightness and contrast you should perform their brightness adjustment which includes global and or local brightness adjustment and seams feathering see Section 13 1 2 2 Split the mosaic into sheets and specify active sheets for output files creation see Section 10 60 PHOTOMOD 5 3 GeoMosaic 3 Setup output parameters of mosaic s building main parameters and output file parameters see Section 13 1 4 Start mosaic s output sheets creation see Section 13 2 13 1 Setup mosaic parameters If you would like to setup mosaic building parameters choose the Mosaic Parameters or click the 4 button The the Mosaic parameters window opens The window contains the following groups of parameters 1 Main parameters of mosaic building on the Mosaic tab see Section 13 1 1 2 Parameters of lo
87. ss value of image frag ment The less the value the worse the correlation Min distance between points Allows to define a minimal distance between points during automatic points measurement Distance between points Allows to define a step along cutline for point search in automatic mode Random shift from cutline Delete all points with same type before search ing Allows to define acceptable deviation from cutline when searching a point in automatic mode Allows to clear the Tie points layer from GCP or tie points before start a search of GCP or tie points correspondingly in automatic mode 56 PHOTOMOD 5 3 GeoMosaic 11 6 Information about tie point In order to obtain the information about tie ground control point select the point on ed itable layer Tie points and choose the Ties Point info In the opened Statistic inform ation window you can see the following data e point s name with tie prefix for tie point and GCP for GCP e number of images where the point is measured path to file of each image where the point is measured AE Images number 2 file Razuvanovang data E GeoMosaic_GCP NewZealand_BAD 669 tiF file Razuvanovang data E GeoMosaic GCP Newzealand BAD 670 tif E y Fig 26 Information about a point 11 7 Attributes of Tie points layer After tie gcp point measuring the information about measured point is saved to attributes of the Tie point
88. st see Section 8 5 The program also provides an option for deleting images not falling within frames of active sheets see Section 10 If necessary the images not falling within frames of active sheets can be deleted Choose the Images Delete images outside active sheets to do this 8 5 The Images list window The Images list window is provided to view and edit the images list of mosaic project Choose the Images gt Project images list or click the 4 button to open the Images list window ovana data ENG c GC ic j664 tif inovang data E Gt ic GCP I ind BAD 665 tif novang data E GeoMosaic_GCP NewZealand_BAD 666 tif file Razuvanovang data E GeoMosaic_GCP MewZealand_BAD 680 tif NN Fig 5 The Images list window 18 PHOTOMOD 5 3 GeoMosaic The images list of mosaic project is displayed in the main part of window Each line of the list contains the full path to a file and input background color for that file The toolbar for working of the images list is located in the top part of window Table 6 Functions overview of the Images list window Purpose Actions Searching images in the list by name Enter the filename or part of the file name in the entry field Click the f button for searching of the image Selecting images in the list Images may be selected by the mouse click Use the Shift and Ctrl hot keys to select several images in the list as well as the standard tools for selecting l
89. stment means transformation applied along merging lines of indi vidual images with gradual smoothing going down to the image central point and mosaic edges i e processing of each pixel during local adjustment depends on its coordinates 64 PHOTOMOD 5 3 GeoMosaic Alix Mosaic Brightness adjustment output misc Global adjustment C None C By average brightness C By project image By image file vee with background ede D Match histogram Local adjustment mion Parameters Brightness adjustment cell size 32 x pix J Not use for brightness adjustment E Seams feathering Smooth parameters aperture size 32 z pi Consider image edges when use feathering Check transparency inside cutlines Fig 30 Brightness adjustment parameters Table 22 Description of brightness adjustment parameters shown on the Brightness adjustment tab Parameter Description None By average brightness Allows to use un adjusted images Allows to apply brightness adjustment using average images brightness At that brightness and contrast of all images are set to values found using aver aging of brightness and contrast values calculated over all mosaic images This method is recommen ded when there are big differences between bright ness of images but each of them contains relatively smooth scenes It should be noted that in case of scenes with sharp different brightness within on
90. t and next images Choose the Mosaic Open image duplicated by the Al button and select the image in the file system folder for viewing the any georeferenced orthoimages of the supported raster format in the separate 2D window Choose the Images Create pyramids for creating the overview pyramid That overview pyramid helps to speed up the rasters viewing in the 2D window The pyramids are saved to the files with the pyr extension in the Pyramid folder 8 3 Setting background color of the images After images loading to mosaic project it is recommended to setup transparency of im ages background color to provide correct stitching of images during creation of output mosaic A You must setup transparency of images background color in case when areas with images background color are located inside images and it is necessary to consider transparency of these areas in output mosaic That allows to obtain mosaic with gaps that not contain output background color In order to consider areas transparency you should setup the Transparent background inside cutlines parameter prior to mosaic creation see Section 13 1 1 Perform the following actions to setup transparency images background color e Specify the background color of source images If the background color is not uniform set the Source rasters background color range option see Section 13 1 1 e Set the transparency of the input background color 15 PHOTOMOD 5 3
91. t status The image name in the attribute is generated automatically and depends on the splitting mode and parameters Click the string of the Value input field and insert another value for changing of attributes value There are also other facilities in the program interface that provide fast managing of the sheet activity status see Section 10 6 1 10 6 1 Sheets status management In the Sheets menu and in the Sheets toolbar the following facilities provided to change sheets status To assign active status to all sheets choose the Sheets Activate all sheets or click the 4 button Toassign non active status to all sheets choose the Sheets Deactivate all sheets or click the 4 button To assign active status to selected sheets choose the Sheets Activate selected sheets or click the button e To assign non active status to selected sheets choose the Sheets gt Deactivate selected sheets or click the button 43 PHOTOMOD 5 3 GeoMosaic To invert sheets status choose the Sheets gt Invert sheets status or click the i button To assign active status to sheets which fall into images entirely including their background and to simultaneously assign non active status to the rest of sheets choose the Sheets gt Set sheets status by rasters or click the HE button To assign active status to sheets which fall into images without their background and to simultaneously assign no
92. tie points see Sec tion 11 Change images order for mosaic creation without cutlines Change of images order in the list results in images block rebuild in the Preview window only in no cutlines case If you would like to restore the initial images order after its rearranging click the 8 button To move selected images to the top of the list click the button to the bottom Y step up step down To invert order of the selected images or images groups mirror like click the Ja button To invert order of all images click the BJ button 19 PHOTOMOD 5 3 GeoMosaic Purpose Saving of selected images list to txt file Actions Select images in the list and click the A button In put TXT file name and click the Save button to save full path to each file of selected images 8 6 Images menu Table 7 Brief description of Images menu Images menu Purpose 2Add images from files This menu item is used for the selecting image files locating in the Windows file system and adding to mosaic project Add images from resources Add images From files from folder This menu item is used for selecting image files locating in the resources of active profile and adding to mosaic project This menu item is used for automatic selection of all images from the specified folder of Windows file system and adding to mosaic project Add images Fr
93. tive profile The _ button is used for selecting of folder and file name 32 PHOTOMOD 5 3 GeoMosaic 5 Click OK The process of cutlines creation starts After its completion the output vector file with cutlines will be created in the specified folder Created cutlines are added into the Cutlines layer and displayed in the Preview window 9 6 Editing cutlines The following options are provided for cutlines editing To delete all cutlines i e all vector objects from the Cutlines layer choose the Cut lines Clear To edit cutlines manually use standard tools for vector objects drawing see the Project processing User Manual e To create a cutline inside an existing cutline choose the Window Toolbars gt Cutlines type The Cutlines Type toolbar opens Choose one of the following buttons cutline types o 5 to use main image in cutline area o 8 to use reference image in cutline area by default it is supposed to use a nearby image into the cutline area o Rr to use the output mosaic background color in cutline area which sets in the Parameters window see the Section 13 1 o E to use transparent without filling in cutline area To view and change all properties of selected cutline choose the Cutlines Cutline properties or Window Objects attributes see Section 9 7 9 7 Using attributes of the Cutlines layer The attributes of the Cutlines layer ext
94. ul areas edge input field specify minimal distance in meters from working area boundary to create cut lines if source images have small overlap Click OK The process of cutlines creation starts The vector polygons are created in the Cutlines layer after the process completion The Cutlines layer becomes ed itable and marked by asterisk this means that the layer has been edited but not saved Created cutlines are displayed in the Preview window Perform the following actions if necessary edit parameters and start automatic procedure of cutlines creation and or edit cutlines manually considering Tpe6oBaHu K npoBeneHuto nopesoB cm Section 9 6 Choose the Cutlines Save to save the created cutlines in the internal file format of the active profile resources Choose the Edit Export to export the cutlines into other formats see Project processing User Manual 31 PHOTOMOD 5 3 GeoMosaic 9 5 Cutlines creation in distributed processing mode The Distributed processing mode provides the saving of time while cutlines creation by making optimal use the hardware computing capacity This mode is recommended to use in case of large volume of source images in the mosaic project Perform the following actions to create cutlines in distributed processing mode 1 Define the structure and role of the workstations to participate in distributed pro cessing Detailed description of distributed processing mode organizing see
95. utlines After the completion of this process an output file of tie points is created in the specified folder The measured point is added in the Tie points layer and displayed in the Preview window Estimate the stitching quality of cutlines in the result of the automatic measuring of tie points If necessary edit the measurement of added tie points see Section 11 3 11 3 Editing measurements of points Perform the following actions for editing measurements of point Perform the following actions to delete point Make editable the Tie points layer in the Layer manager Select the point in the Preview window by mouse clicking Choose the Ties Show windows by current point or click the 88 button of the Tie points toolbar The 2D windows with source images are opened They are showing the selected point Insert the marker in another terrains point on the source images in each of the 2D windows Choose the Ties gt Remeasure or click the button of the Tie points toolbar The tie point will move in new placement and show in the Preview window The visual non conformities of tie points are displayed in the 2D windows on the source im ages because the points are displayed by the data of georeference Make editable the Tie points layer in the Layer manager e Select the point in the Preview window by mouse clicking and press the Del key 53 PHOTOMOD 5 3 GeoMosaic Choose the Ties gt Clear or click the
96. wing mode Otherwise apply detailed algorithm of cutlines creation which is specially recommended for images with urban or rural building since in this case cutlines are created bypassing separate objects houses and crossing roads at the right angle The system also allows to use useful areas during cutlines creation see Section 9 2 with clouds detecting Perform the following actions for automatic cutlines creation 1 Choose the Cutlines Build The Cutlines creation parameters window opens Click the Show advanced parameters button to open parameters of detailed al gorithm Cutlines creation parameters Zi x Useful areas C Notuse C Use Build and use Clouds Not use C Use C Build and use Attribute name image Y Check clouds Useful areas offset 50 0 m Method Fast Voronoi diagram Detailed Thin out precision 1 0 X m Use central points Images centers C Nadir points IV Centers of images without background Create cutlines not closer than iD A m from useful areas edge Show advanced parameters Distributed processing Cancel Fig 11 Parameters of automatic cutlines creation 2 In the Useful areas section choose one of the following options of using useful areas during cutlines creation Not use allows to not use useful areas when the background is absent on source images e Use is used to use pre created automatically or manually useful areas
97. ws opens GJ Ties points distributed processing 10 xj Number of images in project 6 Max number of simultaneous tasks 1 A Temporary folder for parallel processing project temporary_data am Output resource with tie points project tie points x data fec Fig 24 Parameters of distributed processing for measuring tie points 4 Define the number of tasks folder of temporary data name and location of vector file for the tie points storing 52 PHOTOMOD 5 3 GeoMosaic Table 16 Description of tie points measuring parameters in distributed processing mode Parameter Number of images in project Purpose Info field for displaying number of created cutlines in the mosaic project Max number of simultaneous tasks Entry field for defining number of tasks into which the entire auto searching process and tie points measuring is split Temporary folder for distributed processing Entry field for defining the storing folder of tempor ary data Click the _ button to select the folder or create the new folder in the resources of active profile Output resource with tie points Entry field for defining location and name of out put vector file to store the tie points in the re sources of active profile Click the _ button to select the folder and file name Click OK to start the process of creating an automatic searching and measuring of tie points in the vicinity of c

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