USER MANUAL
Contents
1. e Triangulation points ls pS Te Se We A e Code Name Type Use Ex Ey Exy Image a 247 137 Tie 36 721 33 022 49 385 3_0722 188 62 Tie 27 996 27 021 38 910 2_0712 158 27 Tie 27 870 22 732 35 965 2_0712 156 25 Tie 27 313 22 744 35 589 2_0710 154 21 Tie 25 711 21 963 33 814 2_0710 259 6719 Ground Control 24 449 25 614 35 410 3_0722 201 78 Tie 24 035 23 832 33 848 2_0710 258 150 Tie 23 250 13 855 27 066 3_0722 235 123 Tie 19 303 17 170 25 834 3_0720 251 141 Tie 18 630 1 330 18 678 3_0722 236 124 Tie 17 392 19 921 26 445 3_0720 190 65 Tie 16 676 21 421 27 146 2_0712 187 61 Tie 16 661 10 834 19 874 2 0712 199 716 Tie 16 121 23 122 28 187 20714 12A 57 Tia a 15 214 2225 15 727 2 719 a RMS X 10 3311 Y 9 3283 XY 13 9194 Max X 36 7206 Y 33 0224 XY 49 3851 Refresh Close Fig 14 The Triangulation points window Table 2 Toolbar of the Triangulation points window allows to set on off the filter of triangulation points display 0o ae allows to setup the filter of triangulation points display 17 PHOTOMOD 6 0 2 Orthorectification allows to display all selected points in the table is used to search for an image by name part of name a allows to display GC tie points with initial coordinates see the Aerial triangulation User Manual 0 allows to set the percent of trim image edges during orthorectification allows to display triangulation points with2. 6 0 2 Orthorectification o _ the triangulation point was not used o the triangulation point cannot be used since it was not used for adjustment e Ex coordinate discrepancy on X e Ey coordinate discrepancy on Y e Exy error of plane point position the square root of X and Y errors sum e Image name of image for which is calculated error value on selected point In the status bar is displayed the RMS value and maximum error Max as points position and coordinate discrepancy on X and Y The Triangulation points window is synchronized with 2D window when point selecting in 2D window it is also selects in the table Double click on point s name in the table allows to open the Points measurement module for edit point s position 19
3. in the MegaTIFF format using the distributed processing mode PHOTOMOD 6 0 2 Orthorectification allows to create a separate layer with orthoimage for each of selected images see Section 4 allows to show general information about project number of images channels byte per channel number of images and output size of mosaic allows to move to previous image in a block scheme The first image of the first strip opens if the block scheme 2D window is active allows to open selected in 2D window of a block scheme image in a separate window allows to move to next image in a block scheme The last image of the last strip opens if the block scheme 2D window is active 4 FastOrtho displaying The system provides possibility to quick display and create of orthoimages FastOrtho separately for each of selected images FastOrtho is used to display orthoimage created on fly by adjustment results At that the pyramid level of image is used depending on current zoom These orthoimages allows to preliminary rough estimate data quality A FastOrtho could be created only on a block with adjustment in geodetic coordinate system Orthorectification images in fly is used to display orthoimage in 2D window for any selected image of project Perform the following actions to create orthoimages on fly 1 Perform the block adjustment in a geodetic coordinates see the Block adjustent User Manual 2 option
4. Click OK Distributed processing tasks are created and the system shows a message about number of created tasks To create orthoimages in distributed processing of MegaTIFF mode perform the following actions 14 PHOTOMOD 6 0 2 Orthorectification 1 Change settings and run the distributed processing server client see the Distributed processing chapter in the General information about system User Manual 2 Change settings and run the distributed processing server client see the Distributed processing chapter in the General information about system User Manual 3 Setup parameters of orthorectification see Section 6 4 Click the BY button of the Orthorectification toolbar The Distributed processing window opens e Distributed processing SS Number of images 3 Number of MegaTIFF fragments 3 Number of fragments per task iL Temporary folder for distributed processing projects Techsupport Waldkirch_Group Waldkirch_docs Target folder in case of network processing must have UNC format Server Share Folder CA Overwrite existing Fig 12 Mosaic s distributed processing of MegaTIFF paramters The total Number of sheets and Number of MegaTIFF fragments are displays in the window 5 Set the number of fragments per task ES It is recommended to estimate number of tasks based on network capacity and speed of hard drives 6 Define path for temporary files o
5. DEM in the list o 3 allows to remove DEM from the list o A allows to move selected DEM at the head of the list o allows to move selected DEM up the list PHOTOMOD 6 0 2 Orthorectification o W allows to move selected DEM down the list o allows to move selected DEM at the end of the list o Ea allows to inverts selected DEM in the list o HD allows to reverse the DEM order The Cut images by DEM checkbox allows to create orthoimages by rectangle border considering using DEM and without considering the rest area of image The NULL cells interpolation allows to define area out of DEM e None NULL cells are not used in orthorectification process e Constant elevation allows to use constant elevation out of DEM during the orthoin ages creating and fit elevation in one value from the input field e By triangulation points smooth polynomial model calculated by triangulation points is used in orthorectification process see the Block adjustment User Manual The Insert breaklines allows to set the following parameters of using vector objects e None orthoimages are creating without using vector objects e Breaklines in relief bridges etc orthoimages are creating with breaklines which allows to define typycal relief forms e Breaklines not in relief roofs etc orthoimages are creating with breaklines out of relief To form the list of vector files there is a
6. Digital Photogrammetric System Version 6 0 2 USER MANUAL Orthorectification G RACURS PHOTOMOD 6 0 2 Orthorectification Table of Contents ONoRWNDN s PUNDOSE On ING dOCUME etnias asi 3 Mea Mo AAA Un et a a a tomas alae d Gini esas ent a a a 3 The Orthorectification toolbar a ee ee 3 ee giles o a e o y 4 s FIN OIMAGES Creation en 4 Settings of ortoretrification parameters cccceceececeececeececeeeeceeeececeseceeeeseeaeseeaeseeesesseseseeseseees 6 6 12 Ty per DIM A atone Oe tae niet ington ated O ameter 6 6 2 General orthoimages creation parameters oococcoccconcnconcncnccnnnconnncononcnnnnnnnnnnoronnnconnnnnnnnnos 8 6 3 Output orthoimages parameters ococcccccccococconococonnononononnnnonncononnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnos 11 Orthoimages creating in distributed processing mode ocococccccnccoconcononoconcnnononononnnnnnononnononnnonons 13 rey e1 U e2 ey Alo 6 a 0 keen nen errs en re eer a ada 16 PHOTOMOD 6 0 2 Orthorectification 1 Purpose of the document This document contains detailed information about orthorectification images and orthoim ages creation in the PHOTOMOD system 2 General information Orthoimage is a georeferenced image prepared from a perspective photograph or other remotely sensed data in which displacement of objects due to sensor orientation and terrain relief have been removed f The system provides possibility of creating orthoimages by sour
7. ages in Map nfo TAB program 12 PHOTOMOD 6 0 2 Orthorectification ES Used ifMap nfo system does not support coordinate system of mosaic project e Save metadata allows to save images metadata in the x feat file background colour number of channels and its settings e Save datum parameters allows to save seven parameters of coordinate system to meta data of TIFF file e Save DEM allows to save the DEM file to the output path The Output data button allows to choose output format of orthoimage and set path to files e Orthoimages parameters e Type of DTM Orthoimage Output Map scale 2000 0 Calculate map scale v Create MS TIFF Create Geo TIFF Create KML Create pyramids MS TIFF Output images compression O None JPEG with quality LZW Georeference file ArcWorld TFW BPW v Swap X Y Create georeference only Set background color as transparent Save georeference as NonEarth V Save metadata Save datum parameters Output data Save DEM Fig 10 Map scale 7 Orthoimages creating in distributed processing mode The system provides possibility of creating orthoimages in distributed processing mode and also to use distributed processing of MegaTIFF To create orthoimages in distributed processing mode perform the following actions 1 Change settings and run the distributed processing server client see the Distributed processing chapte
8. al Select images for FastOrtho in 2D window more details see in the Vector objects selection chapter in the Vectorization User Manual 3 Click the 8 button of the Orthorectification toolbar Separate raster FastOrtho layer creates for each of selected images Orthoimage displays in 2D window 5 Orthoimages creation Perform the following actions to create orthoimages 1 Adjust the source images block see the Block adjustment User Manual 2 optional Select images for orthorectification in 2D window more details see in the Vector objects selection chapter in the Vectorization User Manual 3 Choose the Rasters gt Orthorectification The Orthorectification toolbar opens PHOTOMOD 6 0 2 Orthorectification 4 Click the button The Orthoimages parameters window opens Orthoimages parameters S Type of DTM Orthoimage Output Type of DTM Constant elevation 587 968252164 O Control points interpolation O DEM Y Cut images by DEM Insert breaklines None O Breaklines in relief bridges etc Breaklines not in relief roofs etc NULL cells interpolation None Constant elevation By triangulation points Cema Fig 1 The Orthorectification parameters 5 Set the orthorectification parameters 6 Click OK to save parameters 7 Click the fal of the Orthorectification toolbar to save the orthoimages project 8 Click the button of the Orthorec
9. ce images block This step allows to prepare images for further processing and creating mosaic in theGeomosaic programprogram B npouecce opmompancobopmuposaHua UCNpaBNAlOTCA NCKAXEHNA CBAZAHHbIe C penbe oMm MeECTHOCTU HAKNOHOM ONTUYECKOM ocn doTOoKaMepbl AUCTOPcCcun POTOKaMepbI n Tak panee lpn noctpoeHuu opTodotonnaHa HeEOOxOAMUMO 3agaTb paa3mep nukcesa optocporonnaHa BbibpaTb CUCTeMy KOOpAamHaT n MacLuiuTab opTocpoTonJlaHa yCTaHOBMTb POPMaT BbIXOA4HOro paula n TUN TEONPUBASKU A Prior to create orthoimages it is necessary to adjust images block see Block adjustment User Manual 3 The Orthorectification toolbar The Orthorectification toolbar is used for creating orthoimages In order to display the toolbar choose the Rasters gt Orthorectification Ctrl Alt M or click the button on the main toolbar Table 1 The Orthorectification toolbar IC IS 2 falows o open an orthorectiication project rom aclvepofle resources allows o save an orhorecifcaton proe allows o save an orhorectficaton project wih anew name allows to set the percent of trim image edges during orthorectification r allows to perform the accuracy control of orthorectification Bw allows to start of orthoimages building and creation of output file for selected sheet allows to start orthoimages creation for specified active sheets considering user settings and parameters in distributed processing mode allows to start of orthoimages building
10. coordinates obtained after adjustment allows to display only errors For refreshing data in the list and on a block scheme about project state after changes the Refresh button is used The button allows to display accuracy control report of orthoimages creation in a print forms and also to save the report as text export or print it e Report le eta A BS Ag L 20 asrycra 2015 r 15 23 03 a Mosaic precision control m Block name Waldkirch_docs Images in mosaic 6 Cell size 0 233000 m Residials N Type Use Image Ex Ey Exy 779 GCP NonAdj 3_0720 14 352 9 963 17 471 970 GCP NonAdj 2_0712 4 415 2 699 S179 6720 GCP NonAdj 2 0712 0 609 0 920 1 103 163 GCP NonAdj 2_0712 0 654 0 478 0 978 l Tie Adj 2_0710 0 613 0 570 0 837 3 Tie Adj 3_0720 1 326 0 800 1 549 4 Tie Adj 3_0724 1 104 0 954 1 459 5 Tie Adj 3_0720 0 611 0 331 0 695 6 Tie Adj 3_0722 1 269 2 486 2 792 12 Tie Adj 3_0720 0 997 0 521 1 124 13 Tie Adj 3_0724 0 157 0 105 0 189 14 Tie Adj 3_0724 1 671 1 551 2 280 17 Tie Adj 3_0722 2 401 4 755 5 327 Fig 15 Accuracy control of orthoimages creation The list of triangulation points is a table with the following columns Code of the point e Image name e Type tie GCP check excluded e Use data about point use for calculating of DEM deviation by Z coordinate o the triangulation point was used 18 PHOTOMOD
11. eation e Transform inside polygons area of orthorectification is set by arbitrary polygons from a vector file Choose a file with polygons in active profile resources Also the Orthoimage tab allows to choose Input and Output coordinate systems 6 3 Output orthoimages parameters The Output tab of the Orthoimages parameters window purposes to setup output options of orthoimages creating Output x File type TIFF Big TIFF files TIF TIFF z Path to files CA Fig 8 Output orthoimages parameters The Map scale field allows to set the scale of output orthoimages The Calculate map scale button allows to calculate a scale and map sheet size in meters and print resolution in dpi Map scale Scale 2000 0 Print size Width m 0 895 Height m 0 8825 Resolution dpi 218 025751073 ma Fig 9 Map scale With orthomap in chosen format also could be created the following additional files depending on output format 11 PHOTOMOD 6 0 2 Orthorectification Create MS TIFF only TIFF Big TIFF output format support output images creates in MS TIFF format with pyramid that helps to redraw images more quickly on a screen e Create Geo TIFF only TIFF BigIIFF output format support output orthoimages create in Geo TIFF format with pyramid e Create pyramids allows to create pyramids for output orthoimages in files of internal format Crea
12. f distributed processing 7 Define Target folder for output orthoimages eG In case of network processing path mast have Server Share Folder format 8 optional To rewrite previously created orthoimages sheets set on the Overwrite existing checkbox 9 Click OK Distributed processing tasks are created and the system shows a message about number of created tasks PHOTOMOD 6 0 2 Orthorectification 8 Accuracy control The system allows to perform accuracy control of orthoimages creation Visual displaying of residuals vectors is used for that Residuals vector on point is a difference of the same point position calculated from different images for used DEM To display residuals on a block scheme click the button of the Orthorectification toolbar The Display options and Triangulation points windows open Residuals are displayed in a 2D window considering to a specified parameters Display options fx e CE ee Mode Block scheme Point display settings Show method O symbols points Point size 5 Show names All O Selected Don t show View errors scale Zoom 10 0 Displacement vectors Maximal from all images O From selected images From all images Fig 13 Parameters of triangulation points display The Display options window contains the toolbar with buttons used to perform the following operations e Gx allows to display list of symbols of point on a block scheme see the Block ad ju
13. f project ES The cell size is set in measurement units equal to units of ground control points in the adjust ment step see the Block adjustment User Manual The Compute button allows to set general size of orthoimage in pixels and recalculate the cell size according to set parameters Orthoimage cell size S Width pix 7685 Height pix 7578 GSD 0 233 Compute Cancel Fig 6 Orthoimage cell size e Background color allows to set a colour for orthoimages background since output orthoimages always inscribes into a rectangular of this color e Resampling method allows to choose the brightness interpolation mode during orthomosaic creation bilinear cubic or nearest neighbour PHOTOMOD 6 0 2 Orthorectification e Shift background color allows to specify a shift of colour on the image if this colour coincides with defined colour of orthoimages background e Geometry correction cell size allows to setup a fragment size in pixels when creating orthoimages using fragments with projective dependence The larger the fragment the faster the mosaic building and the lower the accuracy of output orthoimages The value of 32 pixels is optimal for speed accuracy ratio e Output raster channels opens the window Output image parameters used for specifying the following parameters dE By default quantity and structure of channels are defined by first added ima
14. ge o Use radiometric form RMC files is used when create orthoimages if in the Raster Converter module was preliminary performed the radiometric correction see the General information about system User Manual o Channels list contains list of source left and selected for using in orthorectific ation channels right dE Quantity and structure of channels are forming with buttons of the Channels list section o Data format allows to choose the format of image 8 bit or 16 bit o Monochrome output allows to create output file with one grayscale channel e Output image parameters oxen Y Use radiometric from RMC files Channels list Red Green Blue Grayscale Red Green Blue E S 0 YB Data format 8 bit x Monochrome output Fig 7 Output channels parameters e Rotation angle allows to setup a rotation angle in degrees of orthoimages PHOTOMOD 6 0 2 Orthorectification ES This option is used if a block of initial images has elongated shape and it is necessary to re move over background area in rectangular window of created orthoimages e Source rasters background color range allows to set a deviation from background color to specify a range of color that consider as background in initial images see the Orthomaps creation User Manual e Additional check for black background for areas out of DEM is used a black background in orthoimages cr
15. ge and georeference files are created in the project s folder in chosen formats 6 Settings of ortoretrification parameters 6 1 Type of DTM The Type of DTM tab allows to choose method of using DTM and breaklines during the orthoimages creating PHOTOMOD 6 0 2 Orthorectification e Orthoimages parameters oxo Type of DTM Orthoimage Output Type of DTM Constant elevation 587 968252164 Control points interpolation DEM v Cut images by DEM Insert breaklines O None Breaklines in relief bridges etc Breaklines not in relief roofs etc NULL cells interpolation 9 None Constant elevation By triangulation points Fig 4 The ortoretrification parameters on the Type of DTM tab The Type of DTM section allows to set the following parameters of DTM using e Constant elevation allows to use constant relief elevation during the orthoinages creating and fit elevation in one value from the input field ES Default value is mean elevation value calculated from all source images block e Control points interpolation smooth polynomial model calculated by ground control and tie points is used in orthorectification process see the Block adjustment User Manual e DEM allows to use information from DEM see the DTM User Manual To form the list of DEM there is a toolbox which contains the following buttons o allows to clear the DEM list o 3 allows to add
16. r in the General information about system User Manual PHOTOMOD 6 0 2 Orthorectification 2 Change settings and run the distributed processing server client see the Distributed processing chapter in the General information about system User Manual 3 Setup parameters of orthorectification see Section 6 4 Click the BM button of the Orthorectification toolbar The Mosaic distributed processing window opens e Mosaic distributed processing Target folder in case of network processing must have UNC format Server Share Folder A ls Number of images 3 Number of tasks for processing 3 Overwrite existing images Y Delete temporary project if success Temporary folder for distributed processing projects Techsupport Waldkirch_Group Waldkirch_do Pa a Fig 11 Mosaic s distributed processing parameters 5 Define Target folder for output orthoimage eG In case of network processing path mast have Server Share Folder format 6 The Number of sheets displays in the window Set the Number of tasks for pro cessing based on one kernel for one task 7 Setup the following parameters e Overwrite existing images allows to rewrite previously created orthoimages sheets e Delete temporary project if success allows to remove the folder with tempor ary project if success Is used by default 8 Set path to a temporary folder for a distributed processing project 9
17. stment User Manual e allows to set on off the filter of triangulation points display e ys allows to set filter of triangulation points display see the Block adjustment User Manual In the Mode field is displayed chosen mode of block scheme It depends on active 2D window Block scheme or Image A Triangulation points are not displayed in the stereopair 2D window The Point display settings section allows to setup the following parameters e The Show method of points 16 PHOTOMOD 6 0 2 Orthorectification o symbols points are displayed by selected symbols o points point size is specified in pixels e Show names the following points in 2D window o All points o Selected points o Don t show points names on a block scheme The View error scale section allows to define scale of residuals on a block scheme Zoom of scale size of residual vector is equal to a scheme scale At that vectors are zoom in out during zooming in out of block scheme Error vector creates in regard to a point s position on each image with point s coordinates The Displacement vectors section allows to choose what quantity of vectors for what type of points are displayed on a block scheme e Maximal from all images maximal error vector for each point displays e From selected images all error vectors for points on selected image display e From all images all error vectors for all points display
18. te KML allows to create additional file in KML format e g to show results in the Google Earth ES It is necessary to choose global coordinate system as output to create file in KML format ER KML files are creating both for all block and each image individually The Output images compression allows to set up the compression parameters of output orthoimages files e None files are creates without compression e JPEG with quality files are creates with set quality of JPEG compression lt lt Default compression level is 75 that provides the 5 7 times compression of initial image volume e LZW files are creates with LZW compression Also the Output tab allows to set the following parameters of saving files during orthorec tification e Georeferenced file allows to select the format of the additional file created e Swap X Y allows to swap X Y coordinates to obtain output orthoimages e Create georeference only allows to create just georeference files of orthoimages without orthorefication i e without files creation e Set background color as transparent allows to set the output background color which is shown in MapInfo system as transparent when saving the resulting orthoimage in Map nfo or GIS Map 2011 chosen in the Georeference file list e Save georeference as NonEarth allows you to save georeference In NonEarth coordinate system when saving the resulting orthoim
19. tification toolbar The Output window opens ES For orthorectification in distributed processing mode click the BM button For orthorectific ation in MegaTIFF format in distributed processing mode click the fA button e Output es File type Panorama raster RSW KA Path to files CA Images for ortho All from current PHOTOMOD project 0 Selected on the block scheme Fig 2 Output parameters Choose File type for output files and define path for files PHOTOMOD 6 0 2 Orthorectification 10 optional If some images are selected on a block scheme choose Images for ortho e All from current PHOTOMOD project e Selected on the block scheme 11 optional If in the File type list chosen the Panorama raster RSW type the Panorama map selection window opens Output oy File type Panorama raster RSW v Path to files CA Images for ortho All from current PHOTOMOD project Selected on the block scheme Cancel Fig 3 Parameters of Panorama map export Set name and path for the map file with one of the following ways e click the _ button to export the map sit file click the Create button to create a new Panorama map Sit input filename and click the Save button to export DEM that is used in orthomap creation set on the Export DEM to Panorama map checkbox 12 Click OK to start process of orthorectification The orthoima
20. toolbox which contains the following buttons e allows to clear the file list 3 allows to add vector file in the list 3 allows to remove vector file file from the list 6 2 General orthoimages creation parameters The Orthoimage tab of the Orthoimages parameters window purposes to setup main options of orthoimages creating PHOTOMOD 6 0 2 Orthorectification e Orthoimages parameters oxo Type of DTM Orthoimage Output GSD 0 233 m Calculate Background color Resamling method NS Bilinear Output raster channels Shift background color 1 Geometry correction cell size 32 pix Rotation angle 0 0 Source rasters background colorrange 0 Input coordinate system WGS 84 UTM zone 37N 36deg East to 42deg East northern hemis Select Orientation right geo referencing global coordinate system Output coordinate system WGS 84 UTM zone 37N 36deg East to 42deg East northern hemis Select Orientation right geo referencing global coordinate system Additional check for black background Transform inside polygons Polygons in output CS nes a Fig 5 General orthoimages parameters The Orthoimage tab is used for setting the following parameters of output orthoimages e Cell size allows to specify the size of output orthoimage cell on the terrain The cell size by default is equal to the cell size of the first image o
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