SFM / Feature Matching Visualization

[dberga]

Alternative 1: Use database and open with Colmap

Alternative 2: code
https://nbviewer.org/github/cvg/Hierarchical-Localization/blob/master/pipeline_Aachen.ipynb
https://nbviewer.org/github/cvg/Hierarchical-Localization/blob/master/pipeline_InLoc.ipynb