Generalized Sparse Convolution #77
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clee-ai
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Jun 8, 2021
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Great work! I will take a closer look more this week and test it.
I was wondering, will this make cpp functions like convert_map_forward and insertion_forward obsolete? Unless maybe somebody is using torchsparse.nn.functional.voxelize outside of torchsparse.nn.functional.downsample for some reason? We might want to see if we can remove these
zhijian-liu
reviewed
Jun 10, 2021
clee-ai
reviewed
Jun 11, 2021
clee-ai
reviewed
Jun 11, 2021
clee-ai
previously approved these changes
Jun 14, 2021
zhijian-liu
previously approved these changes
Jun 21, 2021
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In this PR we implement the generalized sparse convolution operation. This operation mainly differs from the current sparse convolution in downsampling stage with
kernel_sizenot equal tostride. The output will be dilated (similar to stridednn.Conv3d) and is not calculated withc_out = torch.floor(c_in // 2) * 2. Besides, we also added support for asymmetric convolutional kernel sizes and strides.