hierarchical_mapper don't work well in preprocessing

[zgchen33]

I followed your script, generate_colmap.py, to preprocess my own datasets, but it didn't work well. Specifically, the hierarchical_mapper generated multiple directories in unrectified/sparse/, like /sparse/0,/sparse/1,...,/sparse/10. I exported the models using colmap, finding they are only part of the complete data, which indicates that this command did not complete the merge operation.

I would like to ask if you guys have encountered this problem when working with your complete, large datasets, and if so, how did you deal with it?

[ameuleman]

Hi, COLMAP can fail to generate a single global model in challenging scenes. You can attempt to merge them using their model merger.