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Feature Requests / Write Camera Locations to EXIF
« on: May 27, 2012, 05:41:09 PM »
It would be very useful on some projects to be able to write the camera orientation (exterior orientation) data to each images EXIF header. This would be great in the following workflow:
Why would one do this? I’ve found in some projects with multiple chunks when using Differentially-corrected GPS data collected at ground marker that some errors still exist. These errors can cause slight might alignments of the chunks. If EXIF data is used to generally align things, these misalignments seem to be go away or are reduced.
I’ve tested writing to the EXIF data with external programs and this process works.
Thanks,
Mark
- Place ground control (actual markers on the ground)
- Conduct aerial photography withOUT an onboard IMU (like with a kite)
- Process the data in PhotoScan to determine camera locations
- Write camera locations to EXIF
- Start a new PhotoScan project and import photos but use new EXIF data for camera locations
Why would one do this? I’ve found in some projects with multiple chunks when using Differentially-corrected GPS data collected at ground marker that some errors still exist. These errors can cause slight might alignments of the chunks. If EXIF data is used to generally align things, these misalignments seem to be go away or are reduced.
I’ve tested writing to the EXIF data with external programs and this process works.
Thanks,
Mark