[Registration] HLoc = SuperPoint (feature extractor) + SuperGlue (matcher)

Reference

GaussReg: Fast 3D Registration with Gaussian Splatting

From coarse to fine: Robust hierarchical localization at large scale

HLoc = SuperPoint (feature extractor) and SuperGlue (matcher)

we use HLoc [27] (SuperPoint [9] as the feature extractor and SuperGlue [28] as the matcher)