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1. 19 Cs 80019 1047 route des Dolines 06901 Sophia Antipolis Cedex France www acute3D com Figure 3 a cone shows the viewing direction First check that the projection cone seems consistent If it is upside down or not looking at the scene try changing the camera orientation value XRightYDown XRightYUp XLeftYDown XLeftYUp XDownYRight XDownY Left XUpYRight XUpYLeft This should eliminate 4 values among 8 If none of those choices seems good the definition of the angles might be incorrect proceed to step 4 and come back Among the 4 left choices use several photos and the grey line hint to the find the correct one Incorrect choice the hexagonal building is moving from the right to the left of the photos but should be moving from the top to the bottom according to the camera orientation Acute3D S A S Business Pole Entr e A BP 19 Cs 80019 1047 route des Dolines 06901 Sophia Antipolis Cedex France www acute3D com XRightYDown Correct choice the hexagonal building is moving from the right to the left of the photos This is consistent with camera orientation on the 3D view Again if no choice seems good the definition of the angles might be incorrect proceed to step 4 and come back Step 3 Using a ground control point Even a coarse control point obtained from a third party map provider e g Google Earth is useful to check orientations In Smart3DCapture Master open the control points tab and add2. a new control point in the control point editor Figure 4 Note that Google Earth gives MSL Height so that the following SRS should be used WGS84 vertical datum EGM96 See Smart3DCapture user manual to learn how to change the vertical coordinate system Open the photo measurements window by clicking on the add measurements plus sign Click on the thumbnails on the left and check if the control point is inside the green circle for each photo selected Figure 5 Depending on the precision of the orientation coarse or refined the control point will be projected more or less precisely in the photo If the control point is not projected at the right place in the photo the orientation is wrong or not accurate enough Proceed to next step Acute3D S A S Business Pole Entr e A BP 19 Cs 80019 1047 route des Dolines 06901 Sophia Antipolis Cedex France www acute3D com S i Control Points Editor File Actions Control Points Spatial reference system WGS 84 World Geodetic System 1984 EP5G 4326 EGM96 e Control point 1 2 379221 Lip Image Measurement Editor 4_057000_099 1_061000_224 Acute3D S A S 4_065000_354 4_065000_354 4_057000_099 LN s 1 Se 4 057000_099 1 061000_224 1 061000_224 K ee CE 061_1097 6F 061_1098 6f 061_1099 tf Figure 5 estimated projection of the control point into photos Business Pole Entr e A 1047 route des Dolines Longitude Figure 4 control
3. choice and the resulting 3D view Figure 11 Uo Uo Acute3D S A S Business Pole Entr e A BP 19 Cs 80019 1047 route des Dolines 06901 Sophia Antipolis Cedex France www acute3D com 16 Figure 11 corrected camera orientations Step 5 using a control point Any coarse control point is useful to check orientations see section 3 c Here the Excel file already contains a control point set on the top of a building easily to find on the photos Figure 12 Figure 12 a ground control point Open the control points tab and click on Edit control points Figure 13 Acute3D S A S Business Pole Entr e A BP 19 Cs 80019 1047 route des Dolines 06901 Sophia Antipolis Cedex France www acute3D com 17 Control Points Editor Lolaa File Actions Control Points Spatial reference system WGS 84 World Geodetic System 1984 EPSG 4326 EGM96 Automatic image selection Use block orientation v Name Longitude Latitude Height Control point 1 2 379221 48 840388 29 0000000023184 3 Figure 13 control points editor Note that Use block orientation is selected so that only the photos viewing the control point will be accessible when adding 2D measurements Select the existing control point and click on Add measurements Wp Image Measurement Editor pg 072_2955 jpq 072_2956 jpgq _069000_4735 Zoom ctrl ctrl ctrl 0 ctrl wheel Move viewing area di
4. point editor Automatic image selection Use block orientation e Zoom ctrl ctri ctrl 0 ctrl wheel Move viewing area dick and drag Set measurement shift cick BP 19 Cs 80019 06901 Sophia Antipolis Cedex France www acute3D com 11 Step 4 Correcting the orientations If the orientations seem incorrect they might not be accurate enough However it is more likely that the definitions and conventions used in your metadata are not consistent with the one you used in your import file Please check the rotation or angle definitions in Smart3DCaptureCameraModel pdf Frequent problems are A sign problem use the right one Mismatching degree and radian use the right option The elementary rotations are not composed in the right order when using Heading Roll Pitch HPR or Omega Phi Kappa OPK since HPR and OPK have opposite orders using one instead of the other and changing some signs should solve the problem The rotation is not going from world to camera but the other way change signs composition order or transpose the matrix when given by its coefficients After correcting the orientation you should probably check everything again from step 2 Acute3D S A S Business Pole Entr e A BP 19 Cs 80019 1047 route des Dolines 06901 Sophia Antipolis Cedex France www acute3D com Le capturingreality gacute Use case Paris sample mporting orientation metadata exercise zip Through Pleas
5. 2_2955 jpg 072_2956 jpg _073000_589 073000_589 _073000_590C 069000_4735 _069000_474C Zoom ctrl ctrl ctrl 0 ctrl wheel Move viewing area click and drag Set measurement shift click Figure 16 incorrect GCP_1 projection Import the block again The control point is now correctly positioned in every photo g Image Measurement Editor 072_2954 jpg 072_2955 jpg 072_2956 jpg _073000_5896 073000_589 _073000_590C _069000_473 _069000_474 Zoom ctrl ctrl ctrl 0 ctrl wheel Move viewing area click and drag Set measurement shift click Figure 17 Correct GCP_1 projection Acute3D S A S Business Pole Entr e A BP 19 Cs 80019 1047 route des Dolines 06901 Sophia Antipolis Cedex France www acute3D com 20 re Aacutesp Your data is now correctly imported and ready for aero triangulation Please note that this toy sample dataset has too few images to be correctly adjusted by automatic tie point detection Anyway we hope that it will help you importing your own dataset correctly and proceed to aero triangulation and reconstruction with Smart3DCapture We recommend performing a similar check on a small part of your dataset and then apply the spotted modifications to your complete dataset Our Support Team is at your disposal should you have any question or request Acute3D S A S Business Pole Entr e A BP 19 Cs 80019 1047 route des Dolines 06901 Sophia Antipol
6. 3 BR Tutorial Importing orientation metadata About this tutorial Smart3DCapture allows you to import all needed information to create a block from an XML or an Excel file xls This is useful in many situations including the case of aerial projects containing a large amount of photos when orientation and positioning values are known a priori either coarse values or accurate values estimated by third party software While the concepts are generally known it appears that many of them are ambiguous and depend on conventions This tutorial will guide you in this convention jungle It will teach you how to import data from Excel and XML files how to check the consistency and the accuracy of the imported data and how to correct them if necessary About this document Information in this document is subject to change without notice and is provided as is with no warranty Acute3D makes no warranty of any kind with regards to this material including but not limited to the implied warranties of merchantability and fitness for a particular purpose Acute3D shall not be liable for errors contained herein or for any direct indirect special incidental or consequential damages in connection with the use of this material Acute3D S A S Business Pole Entr e A BP 19 Cs 80019 1047 route des Dolines 06901 Sophia Antipolis Cedex France Table of contents ABOUT THIS ue EE 1 ABOUTTHIS DOCUMEN EE 1 PARODU CTION NEEN 3 VIP
7. OR TINGAN XME FILE EEN 4 IMPORTING AN EXCEL FILE EE 5 THE PHOTOGROUPS SAEC eet ne ne nr et iT eT Tr tt eT BI re CT E T 5 RE ICS SE EE 6 THE CONTROLPOINTS SHEET cccccececcecececcccecccecucccscuceceececeeaseeceeaeeecueuseeeeneeeceeascecsaseeeeaeeeeeaseeesaseeeusueeeensuseseusaseseneaeeens 7 WR OCTIONS CHEE RE 7 WSA lest sKedla HE RRlei LEE 8 SIEP KEE e el ee EE 8 STEP 2 CHECKING VIEWING DIRECTIONS AND PHOTO ORIENTATIONS 8 STEP 3 USING A GROUND CONTROL POINT ccececcececcccececccceccescececasceeucaseeceeceeecucaseecueaseeesaseecesaeceesaeeecsasencusasenesaseneusaees 10 LSE CASE PARIS SAIVIP RE 13 STEP 1 IMPORTING THE FILE cccccececcccececcececccececccscecucaececeaseecsaeesceaeeeceaseecsaesecsueeecesasesesaecsesaseeceasescsaseeeesueetensaees 13 STEP 2 FIRST EN 13 ae E E E EE 14 STEP 4 CHECKING VIEWING DIRECTIONS AND CAMERA ORIENTATIONS ceccccececccceccesenceceseeccaseecesaseeeeseseecsaseecusaseeeesasenesuees 16 STEP 3 USING ACONTROL 21 1 WEE 17 Acute3D S A S Business Pole Entr e A BP 19 Cs 80019 1047 route des Dolines 06901 Sophia Antipolis Cedex France www acute3D com Introduction Smart3DCapture allows you to import all needed information to create a block from an XML or an Excel file xls This is useful in many situations including the case of aerial projects containing a large amount of photos when orientation and positioning values are known a priori either coarse values or accurate values estimate
8. YLeft see documentation in particular Smart3DCaptureCameraModel pdf o KI K2 K3 P1 and P2 are the distortion coefficients see documentation in particular Smart3DCaptureCameraModel pdf The Photos sheet This sheet is used to list all the photos of the block There can be only one line per photograph This sheet gives the location of the photos on your disk mandatory and also pose and orientation data optional Mandatory Fields photogroupName String String o The file name can be given either with or without the file extension o The photogroup name should match one of the photogroups defined in the previous sheet Optional Fields String String o A directory containing the photos can be given here Note that in the Options sheet a base path can also be given see below Filling directory here is useful when photos are split into several sub folders o If not already given through the file name a file extension can be added here o If known the position can be defined either in latitude longitude and height or in easting northing and height according to the SRS given in the Options sheet see below Acute3D S A S Business Pole Entr e A BP 19 Cs 80019 1047 route des Dolines 06901 Sophia Antipolis Cedex France www acute3D com or Rotation o If known the angular orientation can either be informed by omega phi and kappa angles by heading pitch and roll angles or by the
9. ck and drag Set measurement shift click Figure 14 the predicted position of the control point Click on the different thumbnails to see the predicted position of the control point in all selectable photos Figure 14 The control point seems correctly positioned in all photos except for the ones from photogroup120724 jaune_OOOQ2 Figure 15 and 16 The orientations seemed correct in the 3D view so this might be a slight problem in the angles After several tries it appears that Phi angle is of the wrong sign for this photogroup Acute3D S A S Business Pole Entr e A BP 19 Cs 80019 1047 route des Dolines 06901 Sophia Antipolis Cedex France www acute3D com 18 0002_069000_4739 120724 jaune_0002 120724 _jaune_0002 652569 658 6862442 639 1313 6163 135 34488 1 5776786 2 37382449 0002_069000_4740 120724 jaune_0002 120724 _jaune_0002 652434 242 6862440 744 1317 3595 136 03553 0 1595121 2 871351 0002_069000_4741 120724 _jaune_0002 120724 jaune_0002 652298 259 6862438 929 1321 1916 132 29513 0 4386679 0 96742971 0002_077000_1876 120724_jaune_0002 120724_jaune_0002 652217 811 6864953 63 1314 9964 134 064158 2 26670986 179 950124 0002_077000_1877 120724_jaune_0002 120724_jaune_0002 652349 822 6864954 74 1315 8827 134 673592 f 2 32098416 179 721256 0002_077000_1878 120724_jaune_0002 120724_jaune_0002 652483 354 6864955 99 1315 8852 135 149468 f 1 93018145 179 439557 gt change the sig
10. coefficients of the rotation matrix see documentation in particular Smart3DCaptureCameraModel pdf The ControlPoints sheet This optional sheet is used to define control points Optional Fields Name String Coordinates are given the same way than positions The Options sheet The options sheet allows you to choose the SRS angle units degree or radian a base photo path and a block type Default WGS84 Default false BasePhotoPath BlockType Default Aerial o SRS the default SRS is WGS84 To choose an SRS you have to inform the EPSG code as following EPSG XXXxX o _InRadians by default angles are given in degrees If true angles will be considered in radian o BasePhotoPath add a base photo directory before photo paths o BlockType allows you to choose the type of block you are importing So far possible options are Aerial and None see documentation Acute3D S A S Business Pole Entr e A BP 19 Cs 80019 1047 route des Dolines 06901 Sophia Antipolis Cedex France www acute3D com aAacutes lity kel Gt Dealing with orientations Importing navigation data requires several verifications Due to the large choice of conventions it is highly recommended to check the consistency of the imported data on a small sample before performing aero triangulation Here are the recommended steps to control and correct your import if necessary In the following we ass
11. d by third party software While the concepts are generally known it appears that many of them are ambiguous and depend on conventions This tutorial will guide you in this convention jungle It will teach you how to import data from Excel and XML files how to check the consistency and the accuracy of the imported data and how to correct them if necessary Section 1 and 2 define the format of the import files Section 3 gives the recommended procedure to check conventions Finally section 4 proposes a run with a real sample downloadable with this tutorial Note that while importing an XML file is preferred in a production scenario importing an Excel one is easier for quick evaluations Acute3D S A S Business Pole Entr e A BP 19 Cs 80019 1047 route des Dolines 06901 Sophia Antipolis Cedex France www acute3D com gacute3sp capturingreality Importing an XML file Importing an XML file is thoroughly described in our User Manual Please refer to the following files in Smart3DCapture doc folder Smart3DCaptureUserManual pdf BlocksExchangeFormat xml and Smart3DCaptureCameraModel pdf Acute3D S A S Business Pole Entr e A BP 19 Cs 80019 1047 route des Dolines 06901 Sophia Antipolis Cedex France www acute3D com Importing an Excel file A sample Excel import document is available in the doc folder BlockilmportSample xls It is composed of several sheets 32 4 4 H Photogroups Photos Controlbonts Opti
12. e download the appropriate files on our website this small extract of Paris we will see the different issues one can be faced to when importing a block Step 1 importing the file In Smart3DCapture Master create a project then click on Import Block and select the file Paris_block_import_with_errors xls Step 2 first check To get a first feedback click on the 3D view tab Figure 6 random photo orientation Figure 6 shows that there is no consistency between photos of a same flight line This is typical of an error in angle units In our use case the angles are given in degrees The value of nRadians should then be false Check the Excel file and correct the option Note again that Excel might expect a Boolean value to be entered in your own language EPSG 2154 TRUE BasePhotoPath C HHHHHHHHH HHHHHHHHH Paris_sample_tuto de Acute3D S A S Business Pole Entr e A BP 19 Cs 80019 www acute3D com 1047 route des Dolines 06901 Sophia Antipolis Cedex France Optioname EPSG 2154 FALSE BasePhotoPath C HHHHHHHHH HHHHHHHHH Paris_sample_tuto Import the file again Now the orientation seems regular Figure 7 Figure 7 better orientation Step 3 checking the SRS Export your block in KML format Block gt Export gt Export to KML and open the generated file in Google Earth Figure 8 incorrect geo referencing on Earth Acute3D S A S Business Pole Entr e A BP 19 C
13. is Cedex France www acute3D com 21
14. n of Phi angle for the photos belonging to photogroup 120724_jaune_0002 only 0002_069000_4739 120724_jaune_0002 120724_jaune_0002 652569 658 6862442 639 1313 6163 135 34488 1 5776786 2 37382449 0002_069000_4740 120724_jaune_0002 120724_jaune_0002 652434 242 6862440 744 1317 3595 136 03553 0 1595121 2 871351 0002_069000_4741 120724_jaune_0002 120724_jaune_0002 652298 259 6862438 929 1321 1916 132 29513 0 4386679 0 96742971 0002_077000_1876 120724 jaune _0002 120724 jaune_0002 652217 811 6864953 63 1314 9964 134 064158 2 26670986 179 950124 0002_077000_1877 120724 jaune_0002 120724 jaune_0002 652349 822 6864954 74 1315 8827 134 673592 2 32098416 179 721256 0002_077000_1878 120724_jaune_0002 120724 jaune_0002 652483 354 6864955 99 1315 8852 135 149468 1 93018145 179 439557 e Image Measurement Editor 072_2954 jpg 072_2955 jpg 072_2956 jpg 073000_589 _073000_589 __073000_590C 069000_473 _069000_474 069000_4743 077000_187 _077000_187 _077000_187E _073000_591 _073000_591S _073000_592C Acute3D S A S Business Pole Entr e A 1047 route des Dolines Zoom ctrl ctrl ctrl 0 ctrl wheel Move viewing area dick and drag Set measurement shift click Figure 15 incorrect GCP_1 projection BP 19 Cs 80019 06901 Sophia Antipolis Cedex France www acute3D com 19 ip Image Measurement Editor 072_2954 jpg 9 07
15. ons 3 a Figure 1 Excel sheets Each sheet contains several columns that are either mandatory or optional Columns and sheets that are unfilled can be deleted The Photogroups sheet This sheet is used to define the different photogroups that will be used in the block There should be one line per photogroup Several mandatory fields are required to define a photogroup and some are optional Mandatory Fields Width Height Focal Length SensorSize Either one o The name of each Photogroup should be unique o Photo dimensions width and height are given in pixels o The focal length is given in millimeters o You can choose to fill either the sensor size mm or the pixel size mm Optional Fields PrincipalPointX PrincipalPointY PrincipalPointX mm PrincipalPointYmm CameraOrientation In pixels In pixels In mm In mm String Acute3D S A S Business Pole Entr e A BP 19 Cs 80019 1047 route des Dolines 06901 Sophia Antipolis Cedex France www acute3D com Aacute3 D capturingreality o The principal point can either be given in pixels column line or in millimeters along the X and Y axis defined by the camera orientation o The camera orientation defines the XY axis of the camera sensor for pose rotation and any position eventually given in millimeters principal point measurements etc The possible values are XRightYDown default XRightYUp XLeftYDown XLeftYUp XDownyYRight XDownyYLeft XUpYRight XUp
16. s 80019 dei 1047 route des Dolines 06901 Sophia Antipolis Cedex France www acute3D com The photos are georeferenced over the Arctic Ocean Figure 8 instead of being projected over Paris The right SRS for this block is EPSG 2154 RGF93 Lambert93 Correct it Optioname EPSG 2192 A BasePhotoPath C HHHHHHHHH HHHHHHHHH Paris_sample_tuto gt onar EPSG 2154 ALSE BasePhotoPath C HHHHHHHHH HHHHHHHHH Paris_sample_tuto Import the block again and check the projection in Google Earth Figure 9 correct geo referencing The photos are now correctly geo referenced over Paris Figure 9 Acute3D S A S Business Pole Entr e A BP 19 Cs 80019 15 1047 route des Dolines 06901 Sophia Antipolis Cedex France www acute3D com Aacutesp Using the 3D view it appears that photos from the photogroups UCX and 120724 Bleue 0001 are not looking at the correct direction Figure 10 Step 4 checking viewing directions and camera orientations Figure 10 incorrect viewing directions In the Excel file change camera orientations until you find a good one Remember that the 8 possible options are XRightYDown default XRightYUp XLeftyYDown XLeftYUp XDownYRight XDownYLeft XUpYRight andXUpYLeft Four of these options will result in the projection cone looking at the right direction Find the good one using successive photos and the grey line indicating their top row see section 3 b for details Here is the correct
17. ume that both angles and position are known for each photo Step 1 Checking the SRS After importing check the consistency of the positions by exporting the block in a KML file Open the KML file in your favorite GIS software e g Google Earth and check if the photos are correctly located on the globe If not the SRS definition is probably wrong either wrong choice of SRS or wrong definition in the import file Step 2 Checking viewing directions and photo orientations After importing your block open the 3D view tab When selecting a photo a cone shows its viewing direction and a gray line its top row 1 You can set the size of cameras using camers size Block Block_1 AT Result of aerotriangulation of Block_1 2014 Jan 15 10 02 09 2 35 photo s 0 control point s Tiepoints 3D view Lol Show photos In main component sl Camera size ee W Preview d Name _DSC7051 jpa Directory C Users sylvain Home Data EVDpo Date taken 03 06 2012 14 16 59 Size 17 MB Mask file Component M Spatial reference system Not georeferenced Position X 20 544572 Y 26 835752 Z 116 549524 Rotation 0 999917 0 007532 0 010490 0 0 Name Photogroup 1 Directory C Users sylvain Home Data EVDpd Description Camera NIKON CORPORATION NIKON D800 lI Figure 2 a gray line shows the top of the photo see thumbnail Acute3D S A S Business Pole Entr e A BP
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