Question about the keypoint.txt

andyzeng / 3dmatch-toolbox

3DMatch - a 3D ConvNet-based local geometric descriptor for aligning 3D meshes and point clouds.

http://3dmatch.cs.princeton.edu/

BSD 2-Clause "Simplified" License

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Closed houyongkuo closed 3 years ago

houyongkuo commented 3 years ago

I see that the keypoints in the dataset are obtained randomly and stored in the keypoint.txt file as an index. How do these indexes get?