How to constrain some image's location
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Description
Hi!
I'm trying to use OpensfM to improve some images location in a sequence before uploading them to Mapillary, and perhaps use it for indoor image location.
After a few tests, relative image position is better than the exif gps coordinates, but the absolution position isn't very good : the first image location is good, but not the last one which should not have been moved.
I tried to add some ground control point on the 2 last images without success.
So, is there a way to say to OpenSfm : Don't move these images x.jpg, y.jpg, ..., and use them to improve the location of the intermediate images?
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First steps
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Research direction
Start by reproducing the reported image sequence behavior, including EXIF GPS coordinates and the attempted ground control points. Review the existing handling of ground control points and image locations, then define how selected images should remain fixed while intermediate images are improved. Done means the constrained images retain their locations and the intermediate results improve as expected.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- computer-vision
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100