How do you compute correspondences?

[heiwang1997]

Hi thanks for the amazing work!

During the evaluation of pairwise registration, your code seems to compute the nearest neighbour in the second point cloud for each point in the first point cloud. Does that mean that the number of correspondences your model produced is equal to the number of points in the first point cloud? If so, how do you handle the points with no correspondences when you are computing the 'Feature-Match recall' metric?

[chrischoy]

The Eq.7 has two summations. One for the dataset, one for the correspondences. It evaluates the correspondences.

[heiwang1997]

Hi @chrischoy, Thank you for your response! To clarify, I just want to know how do you formally define 'Ωs' in Eq. 7 during your evaluation. How do you handle non-overlapping areas between 2 fragments?