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September 20 10 , Gaeta , Italy

X th International Scientific and Technical Conference From Imagery to Map: Digital Photogrammetric Technologies. Effective techniques for working in PHOTOMOD. Alexandra Kiseleva Manager of Technical Support Department. September 20 10 , Gaeta , Italy.

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September 20 10 , Gaeta , Italy

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  1. Xth International Scientific and Technical Conference From Imagery to Map: Digital Photogrammetric Technologies Effective techniques for working in PHOTOMOD Alexandra Kiseleva Manager of Technical Support Department September 2010, Gaeta, Italy

  2. Effective techniques for working in PHOTOMOD • Resource system. Creating data structure • Resource system. Network profiles management • ADS imagery processing. Data preparation • Import of orientation data for digital frame cameras • UltraCam data processing. Metadata import • Creating block layout for automatic tie points measurement • Block layout accuracy control • Improving block layout with DEM • Show marker position in Google Maps and Yandex Maps • Distributed processing

  3. PHOTOMOD 5. Resource System \\Server1 Share1\ Share2\ Share3\ \\Server2 Share1\ Share2\ Share3\ Data distributed over multiple network shares Logical virtual data tree in PHOTOMOD Resources

  4. PHOTOMOD 5. Resource System Example: real production configuration Several TB of data residing in 9 network folders of 3 file-servers Resource tree in the PHOTOMOD Explorer

  5. PHOTOMOD 5. Resource System Manage network configuration from a single working place

  6. PHOTOMOD 5. ADS imagery processing Set ofADS Level 1 source files Necessary ADS Level 1 files for each image: *.sup *.ads *.odf *.odf.adj *.tif Camera files with interior orientation data: *.cam misalignment.dat

  7. PHOTOMOD 5. ADS imagery processing PrepareADS data Solve ambiguities appearing when copying Level 1 data from one computer to another

  8. PHOTOMOD 5. Project creation. Import of orientation data 1) Obtain source images • UltraCam images with metadata • JPEG fileswithEXIF structure • 2) Convert the imagery to MS-TIFF • Metadata is extracted into separate XML files • 3) Load the converted images into PHOTOMOD project • MS-TIFFfiles with pyramid • XMLfiles with metadata 4) Use metadata information • for automatic camera file creation and interior orientation • for automatic block splitting into strips and block layout creation

  9. PHOTOMOD 5. Importing UltraCam metadata UltraCam metadata contains • Interior orientation parameters • Angular and linear exterior orientation parameters • GPS-time

  10. PHOTOMOD 5.Creating block layout for automatic tie points measurement • Source data • Survey of mountainous terrain, 600 images • Coordinates of projection centers • Relief elevation 0-1300 meters Accurate block layout helps to increase speed and quality of automatic tie points measurement

  11. PHOTOMOD 5.Block layout accuracy control • Right-click an image • Press D key to show ruler Point search area exceeds 2000 pixels, it may lead to tie points misfiring. It is necessary to improve the block layout

  12. PHOTOMOD 5.Improving block layout with DEM SRTMDEM fragment for the site Before After

  13. PHOTOMOD 5.Show marker position in Google Maps Service – Show in Google Maps Google Maps Clipboard Check for consistency between your project and the real world Google Earth

  14. PHOTOMOD 5.Show marker position in Yandex Maps Service – Show in Yandex Maps Check for consistency between your project and the real world Yandex Maps Yandex Maps

  15. PHOTOMOD 5.Distributed processing File-server with project data Processing workstations • Distributed processing is supported for • Converting images to PHOTOMOD format • Automatic points computing • Creation of orthophoto sheets

  16. See you at Training classes on 22nd September!

  17. Thank you for attention!

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