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facebookresearch / DensePose

A real-time approach for mapping all human pixels of 2D RGB images to a 3D surface-based model of the body
http://densepose.org
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UV_Processed.mat #281

Closed patodichayan closed 3 years ago

patodichayan commented 3 years ago

How do you generate the UV_Processed.mat and UV_symmetry_transforms.mat ?! What if I use the Smpl-x model, do those files remain the same for that model, or does it change?!

patodichayan commented 3 years ago

@vkhalidov Please let me know the steps to generate that .mat file for a newer SMPL-x model.

vkhalidov commented 3 years ago

@patodichayan the key is to define the split into charts, as shown below:

If you've got a different mesh, you'll need to map that mesh to the original one, recompute part labels and U and V coordinates for each vertex of the new mesh. This is what is stored in UV_Processed.mat. Symmetry transforms can be generated from UV_Processed.mat with the help of vertex correspondences under the symmetry transform.

patodichayan commented 3 years ago

@vkhalidov Thank you so much. Do you have a script that does this somewhere in the code? or If you can provide me with the script that you used, it would be much appreciated.

Thanks.

vkhalidov commented 3 years ago

it was @ralpguler who defined the charts in the first place. The scripts are not available in the DensePose code. However, if you establish correspondences between the meshes, you can define similar UV coordinates for your mesh.