Contents
Filter bad matches according to the distances of matched pairs.
matching (list) – rows, cols, vals = init_matching, where each matched pair is (rows[i], cols[i]), and their distance is vals[i]
filter_prop (float) – Matched pairs with distance in top filter_prop are discarded
rows, cols, vals (list) – Each matched pair of rows[i], cols[i], their distance is vals[i]