Update correspondences.py

[kuzand]

closest_points = np.mean(closest_points, 1, keepdims=False)

I think it can be replaced by closest_points.squeeze(), since the dimension of closest_points is (N, 1, 3) and by taking np.mean along the axis 1 is equivalent to just squeezing it. It will be much readable and maybe slightly faster.

[ThibaultGROUEIX]

Hi @kuzand,

Sorry I somehow did not attend to this sooner. I will keep np.mean(closest_points, 1, keepdims=False) because i'd like to maintain the possibility to query more than 1 neighbour. Thanks a lot anyway!