COLMAP Errors

COLMAP-specific troubleshooting.

Segmentation Fault

Cause: Bundle adjustment overflow

Solution:

--Mapper.ba_global_max_num_iterations 20
--Mapper.max_num_models 1

Only 2/1426 Images Registered

Cause: Wrong matcher for video type

Solution: Use exhaustive_matcher for fixed viewpoint:

colmap exhaustive_matcher --database_path database.db

Feature Extraction Flag Not Recognized

Old: --SiftExtraction.use_gpu
New: --FeatureExtraction.use_gpu=1

COLMAP v3.14+ changed flag names.