For Aerotriangulation... how can I force CC to use the positional information for WGS84 GPS coordinates and NOT let CC change those locations under any circumstance? I am fine with rotation or other details changing, but the coords are not being respected. We have a metadata file that has locations for every image. The locations have been verified outside of CC. If we process a small area, it seems to work. The larger the area, the worse the results.
Orange is (ironically) ground truth and are the images that were unable to be used. Green is what we end up with.
This is from a run of approximately 10,000 imagesHere are my AT settings:
A. Positioning/georeferencing:- Adjustment constraints: photo positioning metadata- Final rigid registration position: photo positioning metadata- Final rigid registration orientation: none- Final rigid registration scale: none
B. Main settings:- Key point density: Normal- Tags or QR Codes extraction: Disabled- Pair selection mode: Default- Color correction: blockwise- Splats: Enabled
C. Estimation policies:- Tie points: Compute- Position: Compute- Rotation: Compute- Pre-calibration stage: Enabled- Focal length: Adjust- Principal point: Adjust- Radial distortion: Adjust- Tangential distortion: Adjust- Aspect ratio: Keep- Skew: Keep
Just wondering why I could be doing wrong. Thanks
Really strange indeed. Which Contextcapture version you are using?
But you are using AT settings wrong. You don't set both Final rigid and adjustment constraints to photo positions you have to choose one. Final rigid is for innacurate.
Under Main settings you can lock positions or use "Extend" option for rotations. It is advised to allow at least rotations to change as lot of photos will be drop if they both are locked together. Regarding verification of locations each software has slightly different results so there really is no ground truth. If this is Nadir flight then reusing calibration from 3D project could also improve accuracy.
So it seems that I can only select the "keep" option AFTER I have already run AT. And I can only select "keep" for photos belonging to the main component. If I select "Use all photos" from the Component tab, then only "Extend" is available.I don't understand this workflow...