The point map generated by demo_colmap.py is excessively flat.

[lycooool]

Hi, I noticed that when using the same scene, the point map generated by demo_colmap.py appears overly flat, whereas the one from demo_gradio.py looks correct with proper depth variation. I’ve tried both the depthmap and pointmap branches, and tested with and without bundle adjustment (--use_ba), but the issue persists. Could you please advise on what might be causing this and how I might resolve it? Thank you!

Use demo_gradio.py:

Use demo_colmap.py:

[jytime]

Hi, if you do not use_ba, the results of demo_colmap should be exactly the same to demo_gradio.py. The only difference is, in demo_colmap we use a strict conf thres to filter out the points. The default value is 5.0, which may be a bit higher for some cases. You can try to adjust it.

https://github.com/facebookresearch/vggt/blob/b529f922f3b05fada4374ab95cd4f2b1d06f6469/demo_colmap.py#L59-L61