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Some questions about the hyperparameters #15
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Hi.
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Thank you for your prompt reply. Sorry to check again, you mean, by applying voxelization, the voxelized coordinates could lead to a higher freq, resulting smoother signals, right? Also, does the vol_bnds = [-3.6, -2.4, 1.14] denotes the minimal coordinates among all 3DMatch train&val&test set? Thanks. |
Sorry, I wrote in the wrong way. Voxelization with 0.04 m lead to Lower freq. and smoother signals. Yes it is the min coordinate. |
Thanks. Now I get your point, by voxelizing, the raw coordinates such as [0.3900, 0.9669, 0.7839] are scaled to [0.3900, 0.9669, 0.7839] / 0.08 = [ 4.875 , 12.08625, 9.79875], which has lower freq, leading to smoother signals. Also, the voxel_size setting for 3DMatch seems to be 0.08m instead of 0.04m? |
Sorry to bother you again, may I ask how to get the exact vol_bnds = [-3.6, -2.4, 1.14] for 3DMatch? because when I iterate through the train&val&test set of 3DMatch(provided by PREDATOR), the min coordinates of them turn out to be [-1.5, -1.5, 0.5], could you give some hints about it? |
I remember [-3.6, -2.4, 1.14] was from 4DMatch. |
Thanks for your reply, indeed those boundaries are not crucial in relative positional encoding, I'm currently trying the sparse convolution library which needs min coordinates over all input point clouds, so the min coordinates calculated by myself do not consistent with that in lepard confuses me, not it make senses, anyway, thanks for your reply. |
Hello! Here are some questions for the code part on dataset 3DMatch.
Thank you very much for your help.
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