GeoCell User Manual - OSGeo SVN Repositories
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1. 0 00824 50 00000 0 00092 50 00000 0 00687 50 00000 0 00000 0 10000 0 00379 50 00000 0 00006 50 00000 0 00158 50 00000 0 00663 50 00000 0 00003 0 10000 0 00510 50 00000 0 00121 50 00000 U 01318 50 00000 0 00769 50 00000 0 00000 0 10000 last corr initial sta initial meas 2664 9 0 00047 50 00000 0 00052 49 99998 0 00038 50 00000 0 00019 50 00000 0 00057 49 99999 0 00026 50 00000 0 00020 50 00000 0 00085 49 99999 0 00066 50 00000 6957 3 45 34128 0 09936 prop std 22 61567 22 91156 28 04424 22 56157 22 85947 28 06490 SE E 28 66972 90460 05215 prop std 25 12279 28 75264 49 55560 42 25599 0 09838 25 89526 31 17639 48 27970 40 63471 0 09394 11 65931 15 78122 38 39727 45 33730 0 09936 prop std 22 61620 22 90708 28 04453 22 56179 22 85459 28 06496 22s Wap 28 66964 89936 05243 Post solution summary NO 3 _Mean ossimAdjustmentExecutive Summary Vali Nbr Nbr Nbr Nbr d Exec Ground Pts Image Points Images Parameters Solution Converged Solution Diverged Max Iter Exceeded Max Iterations Convergence Crit SEUW Trace Iter nyny Va Vi e CZ Vi Vir Va a Ca DDD DDD DD aww nw Va a Ce Ce Zi w 0 0 0 1 1353 0 0 0 3 4429 0 1 0 0 2687 0 0 0 0 1396 0 2 0 1 4438 0 2 0 0 2759 0 0 0 1 1309 0 2 0 2 4466 0 0 0 0 RMS true 3 9 Observation 3 metrics 15 true Pal ee2. 2 Select both Reprojection Chains in Chains right click and choose Combine gt Blend 3 An ossimBlendMosaic is created in Chains see Figure 3 Figure 3 Image Blend 3 1 2 Feather The feather procedure is described as follows 1 Load two images 2 Select both Reprojection Chains in Chains right click and choose Combine gt Feather 3 An ossimFeatherMosaic is created in Chains see Figure 4 04 05 13 Figure 4 Image Feather 3 1 3 Combiner From Factory Use of a combiner not explicitly available in the Combine menu is described as follows 1 Load two images 2 Select both Reprojection Chains in Chains right click and choose Combine gt Select from Factory 3 A selection window is displayed as shown in Figure 5 O Image Combiner Selection Image Combiner v ossimBlendMosaic ossimMaxMosaic ossimColorNormalizedFusion ossimLocalCorrelationFusion J ossimSFIMFusion ossimimageMosaic ossimClosestToCenterCombiner ossimBandMergeSource ossimFeatherMosaic ossimBumpShadeTileSource ossimOrtholmageMosaic ossimEquationCombiner ossimTopographicCorrectionFilter ossimLandsatTopoCorrectionFilter ossimTwoColorView Figure 5 Combine Selection Window 4 Select desired filter for example an ossimTwoColorView is created in Chains see Figure 6 04 05 13 Figure 6 Two Color Multiview 3 2 Digital Terrain Model Usage 3 2 1 Hill Shade The hill shade procedure allows creation of a pseudo 3D view It is
3. described as follows 1 Load an overlay image and DTM reformatted to raster e g srtm_xx ras 2 Select srtm_xx ras in Sources right click and choose Chains gt Image Normals a A Normals Chain is created in Chains b Expansion of the entry allows manipulation of its filter properties for example the gain of the ossimlmagePlaneNormalFilter has been changed in Figure 7 04 05 13 DRAFT v Chains be E Reprojection Chain Entry 0 data tutorial data D E Reprojection Chain Entry 0 data tutorial data gt M Reprojection Chain Entry 0 data tutorial data v m Normals Chain Entry 0 data tutorial data elev gt Properties gt Inputs v Filters Y ossimi mageToPlaneNormalFilter v Properties Name Value class_name ossimimageToPia Description enabled gain xscale 0 010791847107 yscale 0 010791847107 autoTrackScaleFlag true O OQO al data elevation general_raster_sanfran true v Chains gt Ei Reprojection Chain Entry 0 data tutorial data gt E Reprojection Chain Entry 0 data tutorial data gt ossimCacheTileSource e ossimimageRenderer gt M Reprojection Chain Entry 0 data tutorial data al data elevation general_raster_sanfran gt ossimCacheTileSource A See A A er v M Normals Chain Entry 0 data tutorial data elev Lege E E gt Properties gt Inputs v Filters ossimimageToPlaneNormalFilte
4. file A project file defines file paths and other parameters associated with a group of related images OMAR has the capability to select images and export download a project file along with associated image files including geometry overview and histogram for use in GeoCell 2 1 1 GUI To load an image or project via the GUI select File gt Open Image or File gt Open Project and choose the desired file using the Open dialog box as shown in Figure 1 O Open 4 H i Mel m e gl data Q FAVORITES Shared Folder A Applications Name l Date Modified oe ntosh HD AH Sep 17 2012 i AM gt APPLANIX Apr 30 2012 7 03 AM Save Project Enes gt i DEM Aug 30 2012 8 48 AM Save Project As loads gt 9 elevation Apr 17 2012 12 49 PM Open Project e gt J elevTEMP Aug 29 2012 8 42 AM gt J NGA_Anaglyph Sep 5 2011 6 34 PM Open Image ources D Smar naa 8 08 AM Open JPIP y gt pearl Dec 17 2012 2 36 PM i Gata gt ki OR Sep 7 2012 1 25 PM Temp regTest02 geocell Sep 19 2012 3 53 PM SE B regTest03 geocell Oct 2 2012 9 16 AM rth Biel gt sanfrancisco Mar 5 2012 9 42 AM J ossim_dependencies gt 3 Space_Coast Jan 3 2013 12 35 PM C opt gt spawar Jan 17 2013 8 28 AM Projects gt test Sep 10 2012 7 53 PM a gt 7 video Mar 14 2012 8 39 PM SEI gt world states boundaries Mar 10 2012 7 31 PM L SkyDrive gt 0 WorldView Sep 19 2012 1 17 PM Google Drive Figure
5. on the cell The point s symbol will also turn red and it will not be included in the solution 5 Clicking on its column header revisits any tie point 04 05 13 15 000 Metric Exploitation Image Summary Registration Point Position Mensuration Point 12 3 New Point Tu 3 2 m a g e Deactivated Point Reset Mode Dismiss Figure 16 Point Editor Tab 4 3 1 3 Registration Tab The Registration tab is illustrated in Figure 17 Upon completion of tie point measurement press the Register button to execute the registration solution A detailed solution report is written to the summary window See paragraph 4 3 2 for a description of the report content If the results are satisfactory press the Accept button to save the parameter adjustments Press Clear to remove the report ignore the solution and perform additional tie point editing 0090 Metric Exploitation Image Summary Point Editor Point Position Mensuration ossimAdjustmentExecutive Report Thu 02 14 13 15 14 59 Register Images 1 data Space Coast Test M1BS tif Accept 23 data Space Coast Test po 176062 pan_0000000 ntf 3 data Space Coast Test 3V050726P0000820271A0100007003410 00574200 ntf Clear Observations 1 0 00 nan nan nan WGE 1 4438 9 4367 6 2 2688 0 6996 1 3 1396 8 14513 8 2 0 00 nan nan nan WGE 1 4430 1 4352 6 2 2665 3 6956 9 gt D 3 3EA 3 TAANQ A H Reset Mode Dismiss Figure 17 Registratio
6. 1 Image Project File Selection 2 1 2 Command Line Project files may be opened via command line in the following manner geocell project path to project file or geocell path to project file gcl with gcl extension Using the example from paragraph 2 1 1 geocell project data regTest03 geocell or geocell data regTest03 gcl 04 05 13 2 2 Open Display Windows After loading image chains must be selected to create the corresponding image display windows With reference to Figure 2 follow these steps to create displays 1 Expand the source entry list by clicking on the small triangle next to Source Select desired sources and right click to reveal pop up menu 3 Select Chains then Affine for raw images or Default or Map Projection for orthorectified images SS Data Manager Entry 0 data Space_ ml Show Ent show Chains D Default Chains Displays Affine Writers Export Map Projection Jobs Swipe mage Delete Planetary View Figure 2 Chain Selection 04 05 13 3 Visual Exploitation This section describes the functions related to GeoCell s visual image manipulation capabilities 3 1 Image Combiners GeoCell has access to OSSIM s collections image combiners This section provides examples of several of those functions using a raster map and image for clarity 3 1 1 Blend The blend procedure is described as follows 1 Load two images
7. 12 Metric Exploitation Window 4 2 Geopositioning This section describes geopositioning component of metric exploitation The point positioning function is NOT CERTIFIED FOR TARGETING The Point Position tab is illustrated in Figure 13 a 4 el A y AAN Metric Exploitation Single ray intersections for each image point data Space_Coast T G E Image Summary Point Editor Registration OST Mensuration Single ray Image 1 28 597436535473484 80 682915183885385 28 069 WGE Image 2 28 597437709576667 80 682819729069180 27 757 WGE Image 3 28 597467594193390 80 682986933759864 28 080 WGE Drop Point Clear Current Multi ray a HAE 27 594 m MSL 2 252 m ECEF 907335 4 5530371 1 3034789 5 m Multi ray NOT CERTIFIED FOR TARGETING intersection for all image points Reset Mode Dismiss 04 05 13 12 Figure 13 Point Position Tab After measuring the corresponding point in each image press the Drop Point button to execute the intersection point drop The results are written to the summary window These results include individual single ray intersections with the elevation surface and one multi ray spatial intersection using all image rays The display uses the following abbreviations 1 DD longitude latitude in decimal degrees 2 HAE also WGE he
8. 3V050726P0000820271A0100007003410_00574200 ntf Name Sigma Param Param adjust Value 1 intrack_offset 50 0 we oe 3 23524 2 crtrack_offset 50 1 p 23 1546 3 intrack_scale 50 0 wes 0 811727 4 crtrack_scale 50 0 Tes pm 14 7484 5 map_rotation 0 1 0 r 0 000490582 Save OSSIM geometry geom file Keep Copy Delete Reset Close Figure 18 Parameter Adjustments Window Saving Parameters 04 05 13 20 4 4 Mensuration TBD 04 05 13 21
9. GeoCell User Manual Version 1 8 16 April 2013 ABSTRACT GeoCell is a stand alone executable program offering a cross platform GUI that exposes OSSIM library functionality This document provides guidelines for operations Cf Rodiont Blue TECHNOLOGIES Table of Contents E 8 Ee 3 2 BASIC OPClraGlOns eege aaa aaa aaa a 4 AL Load Ku 4 GN Ws ME e E 4 raed Wee me e ER 6 LI EE 4 24 Open Display Wi Te 5 CN EIN DOU EAI ON iseni Eeee EREET rE EEEE EREEREER 6 SL Image Combiner Sosonko Enean 6 S WR E EE 6 SL e E 6 che Combiner From EE 7 3 2 Digital Terrain Model Usage iricisssisiisndascessviisessendsedsniesisssensnisavieisacssecetievanisssuntssecnsendesionseuse 8 S CN E Ce Ee 8 3a Planetary Vie W eo EEEE E 9 4 Metric Exploit atiOTi eee eee nec nn nee ee eee sn ane one eee ee 11 4 1 Eege 11 da 210 0 a NTD ee ee re 12 AS Image Reist AIO Wi sirip aa aoa e Eaa aS 14 Aod REE a E Oaa O enero oreo reer eee e eo 14 A W PO Tate uo T o AE ENEE A A NEE 14 Aaka Pon MEO e E Ea e ea ence E E EE 15 E E E geren KEE 16 AS Review Registration RED OUT geeiert Eden 17 4 3 3 Save Adjusted Parameters scscscscscseienssccscedscsseniescsnesstecenceesternneiesevestvasnsuditeeiastuienseeneentaceseuies 19 Ce ee 21 04 05 13 1 Overview TBD 04 05 13 2 Basic Operations This section describes the basic procedures required for GeoCell operations 2 1 Load Images Images can be loaded either individually or as members of a project
10. Iteration false convergence 7 information 5 05 Standard error of unit weight per iteration 9 14498 8 4352 8 6996 5 14513 9 6 4367 7 Bes 6786 7 9 114306 7 4283 5 0 1 0 1 a Va Va Van ag Cen Zeg Va Va Va an Ce Additionally the following terminology is used in the summary report l a priori 2 5 last corr 4 gt Prop Std 6 SEUW provisional estimate of parameter ground coordinate total corr total correction for all iterations correction computed from last iteration initial std standard deviation of provisional estimate propagated standard deviation standard error of unit weight At a top level the following factors generally indicate an acceptable solution 1 Solution converged as illustrated in the example above 2 Decreasing stabilized SEUW 3 Reasonable corrections to adjustable parameters and ground points 4 3 3 Save Adjusted Parameters The adjusted parameters may be saved in the standard OSSIM geometry file format geom by using the Parameter Adjustments window referenced in paragraph 4 3 1 1 04 05 13 19 This action is selective that is each image parameter set must be saved independently using the Save button as shown in Figure 18 The adjustment is also labeled with the date and time 0080 Parameter Adjustments Automatic L adjustment label L Adjustment Selection a Adjustment description Image Source data Space_Coast Test
11. Writers Figure 10 Registration Window Selection Prior to selecting the desired operation the applicable images must be selected after first expanding the displays list by clicking on the small triangle next to Displays If no images or too few are selected an error pop up is displayed as shown in Figure 11 ac Minimum number of images required Geopositioning 1 image Registration 2 images Mensuration 1 image Figure 11 Error Pop up for Too Few Images All metric exploitation components are controlled via the Metric Exploitation window as shown in Figure 12 Its tabs are active based on the selected mode with the Image Summary tab always active The Dismiss button hides the window but maintains the mode The window can be revealed again by reselecting the mode or by clicking in the Data Manager area and pressing the s key The Reset Mode button resets to the no mode state and removes all measured points 04 05 13 11 DRAFT 00980 Metric Exploitation Registration Point Position Mensuration ee O Image Summary l Point Editor Image Source Tabs selectively 1 data Space_Coast Test po_176062_pan_0000000 ntf activated based on current mode bast Test M1BS tif ossimQuicl 3 data Space_Qoast Test 3V050726P0000820271A010000700 ossimNitfRpcModel 2 data Space_C Tab always active Wm mmm wg Reset Mode Dismiss Figure
12. ach iteration n im parameter a priori total corr last corr initial std prop std L 1 intrack offset 0 00000 4 42692 4 42692 50 00000 2313001 a d Cttirack offset 0 00000 o0 1290 o 0 1290 50 00000 2e6 2920 a 1 intrack scale 0 00000 2 000001 2 00101 50 00000 49 55460 4 1 ertrack scale 0 00000 Sa DOS 12 Sa DOS 72 50 00000 42 26942 9 l map rotation 0 00000 0 00600 0 00600 0 10000 0 09838 6 2 intrack OFTSset 0 00000 3 45761 3 45761 50 00000 23408186 T 2 crirack offset 0 00000 2 44296 2 44296 50 00000 31 14816 oe 2 intrack scale 0 00000 Ee Ee 50 00000 48 28139 J a eCrtrack scale 0 00000 3 98490 3498490 50 00000 40 63788 EH 2 map rotation 0 00000 0 00018 0 00018 0 10000 Oe g Ao 11 3 intrack Greet 0 00000 S l5540 Sa L5040 50400000 d 6653 69 l2 3 ertrack oftset 0 00000 5 39114 5 39114 50 00000 T3 80003 Ls 3 intrack scale 0 00000 6 685 11 Beie 50 00000 36 37173 04 05 13 17 14 3 15 3 crtrack scale map rotation Observation Corrections n observation 1 1 Ground coordinate 2 2 corrections 3 3 Measurement Residuals observation image 1 1 1 2 1 3 Image measurement 2 1 residuals e 2 2 3 3 1 3 2 3 3 Mean Iteration 2 Parameter Corrections n im parameter 1 1 intrack offset 2 1 crtrack offset 3 1 intrack scale 4 1 crtrack scale St I map rotation 0 2 intrack offset 7 2 crtrack offset 8 2 intrack scale 9 2 crtrack scale 10 2 map rotation 11 3 intrack offset 12 3 crtrack offset 13 3 in
13. ff the row header for each image as shown in Figure 15 The context menu can be used to toggle the control status of the image indicated by appending a C to the image number and to display its Parameter Adjustments summary window 04 05 13 14 O O Metric Exploitation Point Editor Registration Image Source Type 1 data Space_Coast Test po_176062_pan_000 Parameter Adjustments 2 tif Adjustment Selection 0 Adjustment description Initial adjustment Image Source data Space_Coast Test 3V050726P0000820271A0100007003410_00574200 ntf Toggle control image Name Sigma Param Param adjust Value View adjustable parameters Rn 1 intrack_offset 50 0 0 2 crtrack_offset 50 1 50 3 intrack_scale 50 0 1 F 0 4 ertrack_scale 50 0 t y 0 Reset Mode 5 map_rotation 0 1 0 0 Keep Copy Delete Reset Save Close Figure 15 Image Context Menu 4 3 1 2 Point Editor Tab The Point Editor tab is illustrated in Figure 16 Follow these steps to add tie points 1 Press the New Point button to create a new table column and increment the current point indicator below the New Point button 2 Measure the current tie point in each image The corresponding table cell will turn yellow 3 For any point after the first image has been measured clicking on the point header will preposition all images to the corresponding position 4 Any individual image point measurement can be toggled to inactive indicated by red by clicking
14. ight above ellipsoid WGS84 3 MSL height above mean sea level 4 ECEF earth centered earth fixed Cartesian frame 04 05 13 13 4 3 Image Registration The objective of registration is to adjust camera model error parameters to minimize projection error residuals for tie points appearing in all the images This is not just a cosmetic bias removal the sensor model is being used and the adjusted error model parameters can be saved for downstream uses Image registration requires the measurement of tie points common to the image overlap areas Based on the differences between the measured and projected point positions selected image parameters are adjusted through a mathematical process known as a bundle adjustment 4 3 1 Register Images The Metric Exploitation Registration tabbed window is composed of three tabs that are described in the following paragraphs 4 3 1 1 Image Summary Tab The Image Summary tab is illustrated in Figure 14 O O Metric Exploitation gt Point Editor Registration Image Source Type 1 data Space_Coast Test po_176062_pan_0000000 ntf ossimNitfRpcModel 2 data Space_Coast Test M1BS tif ossimQuickbirdRpcModel 3 data Space_Coast Test 3V050726P0000820271A010000700 ossimNitfRpcModel Reset Mode Dismiss Figure 14 Image Summary Tab This tab which is primarily informational provides a convenient view of the images and their associated types A right click context menu is available o
15. n Tab 04 05 13 16 Tie point summary list Adjustable parameter corrections 4 3 2 Review Registration Report The summary window shown in Figure 17 contains a detailed solution report The report content is described in the annotated example below Number of adjustable ossimAdjustmentExecutive Report Tue 02 19 13 10 18 55 image parameters Images Ke data Space Coast Test po 176062 pan 0000000 ntf 2 data Space Coast Test 3V050726P0000820271A0100007003410 00574200 ntf eF data Space_Coast Test M1BS tif Observations 1 0 00 nan nan nan WGE Tie point ground coordinates 1 kee E e A been nan indicates uninitialized 2 1353 9 14498 8 be le point image mr 3 4429 7 4352 8 coordinates s l actual coordinates Indicate 2 0 00 nan nan nan WGE generated from control image 1 2687 2 6996 5 2 1396 7 14513 9 3 4438 6 4367 7 3 0 00 nan nan nan WGE 1 2759 6 6786 7 2 1309 9 14306 7 3 4466 0 4283 5 Iteration 0 Measurement Residuals observation image samp line initial meas 1 1 13 6 8 9 2664 9 6957 3 ae War d 3 7 8 5 1 4429 7 4352 8 space discrepancies residuals 2 d 13 7 SS 2687 2 6996 5 2 2 9 1 4 1 1396 7 14513 9 2 3 I 5 4 4438 6 4367 7 3 1 13 1 8 7 2759 6 6786 7 3 2 9 0 41 1309 9 14306 7 3 3 SA Ee d 4466 0 4283 5 Iteration 1 Parameter Corrections Data summary subgroups repeat for e
16. r v Properties Name Value class_name ossimlmageTopPia Description enabled gain xscale 0 010791847107 yscale 0 010791847107 autoTrackScaleFlag true true gt ossimCacheTileSource gt ossimimageRenderer gt ossimCacheTileSource Figure 7 ossimlImagePlaneNormalFilter Properties 3 Select the map Normals Chain in Chains right click and choose Combine gt Hill Shade a AossimBumpShadeTileSource is created in Chains b Expansion of the entry allows manipulation of its filter properties for example the hill shade light source azimuth and elevation angles are shown in Figure 8 v Chains gt IN Reprojection Chain Entry 0 data tutoria 000 edili data elevation general raster_sanfran gt IW Reprojection Chain Entry 0 data tutoria H A Liss er A WI gt M Reprojection Chain Entry 0 data tutoria RS amp per Dan aR X AW gt Iw Normals Chain Entry 0 data tutorial d mS mech eS BR A BE N v M ossimBumpShadeTileSource g y Sues Ve aes SE Ae D SL CR gt Properties RAN SLE LOT R gt Inputs v Filters Y ossimBumpShadeTileSource v Properties Name Value class_name ossim Description enabled true lightSourceElevationAngle 45 lightSourceAzimuthAngle 45 gt ossimBandSelector b assimHistaaramRemanner E Figure 8 Hill Shaded Map 3 3 Planetary View Planetary view provides the capability for advanced 3D viewing Activation of this view is described as follo
17. track scale 14 3 crtrack scale I 3 map rotation Observation Corrections n observation 1 1 2 2 3 3 Measurement Residuals observation image 1 1 04 05 13 samp 0 0 00000 0 00000 a priori 28 59735 80 68278 26 83644 28 59700 80 68255 28 s332 L5 28 80 2 9 59890 68181 16113 a priori 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 CO OO OC CC CH CO COOC CC Cl a priori 28 59735 80 68278 26 83644 28 59700 80 682535 melo s332 L5 28 59890 80 68181 29 16113 line sL 0 0 4 60951 0 00367 total corr ERR Fe 1686 Ded 05d 3 47060 52333 2 04273 3 31765 38507 1 41584 4 60951 0 00367 50 00000 0 10000 last corr initial sta 3 92079 50 00000 2 71886 50 00000 0 17051 50 00000 3 47060 50 00000 2e 02500 50 00000 2 04273 50 00000 33 L705 50 00000 2 38507 50 00000 1 41584 50 00000 initial meas 2664 1353 4429 2687 1396 4438 2159 1309 4466 RMS total corr 4 42816 06469 06194 G4 E 0 00599 45382 44302 20447 Tso cea 00015 150350 oeer 6 67994 61720 00367 total corr KEES 2 71938 017089 3 47040 92389 2 04298 3 31785 38592 1 41519 oO col U UN 6957 3 14498 8 4352 8 6996 5 14513 9 4367 7 6786 7 7 14306 7 4283 5 sl 0 1 last corr Initial stad 0 00124 50 00000
18. ws 1 Load image s of choice 2 Select all in Chains right click and choose Planetary View from context menu 3 Press lt Select Syncing gt and select Full 04 05 13 4 Image Viewer map or image display and control Left click roam induces synchronized motion in all displays including the Planetary Viewer Wheel moves image up down Shift wheel turn zooms in out 5 Planetary Viewer display and control 04 05 13 Note that both images appear mosaicked Left click roam moves image within display window Right click roam zooms image within display window Middle click roam not wheel turn induces eye point motion v up down raises lowers look angle v right left rotates azimuth Hot keys reset v lower case u rotates back to north up v upper case U resets eye view to nadir At higher look angles relief should be visible in background 000 Planetary Viewer Figure 9 Plantary Viewer 10 4 Metric Exploitation This section describes the functions related to GeoCell s photogrammetric exploitation capabilities 4 1 Selecting Images The metric exploitation processes are controlled by the tabbed Metric Exploitation window which is initiated from the Exploitation Mode menu as shown in Figure 10 v lt Select Exploitation Mode gt e r Registration Geopositioning Mensuration P vvurTUcco Chains v Displays data Space_Coast Test po St 3V050726P00008202 data Space_Coast Test M
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