HAHOG is the name OpenSfM uses for the combination of Hessian Affine feature point detector + HOG descriptor. The HOG descriptor is the same as used in SIFT, the detector is different.
The code in OpenSfM for this is BSD licensed.
HAHOG is the name OpenSfM uses for the combination of Hessian Affine feature point detector + HOG descriptor. The HOG descriptor is the same as used in SIFT, the detector is different.
The code in OpenSfM for this is BSD licensed.