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COLMAP configurations seems to be incorrect

Open bashtavenko opened this issue 2 weeks ago • 0 comments

I have been trying to run ns-process-data script and discovered that COLMAP is either out of data or does not work for me. I was going to send a short PR, but wanted to have a short conversation. This PR would require update to doc and code:

Installing COLMAP

Installing COLMAP through conda-forge did not work for me because of the incorrect solver configuration. It blows up in bundle adjustments. I ended up with COLMAP source install (/usr/local/bin/colmap on Linux). As of today it is 3.13.0.

Obsolete command line parameters

--SiftMatching.use_gpu is an obsolete for the command line parameters. At least in 3.13.0 version of COLMAP. Needs to be removed

Matching method

matching_method = vocab_tree no longer works in the Blender datasets that I tried. During bundle adjustment COLMAP fails and says that as of May 2005 and COLMAP there is a backfill utility to fix the old vocab tree. I changed the matching method to exhaustive .

Camera type

I believe this should be simple_pinhole and not perspective. With simple_pinhole I was able to process 99% or often 100% of Blender image datasets

bashtavenko avatar Dec 08 '25 20:12 bashtavenko