About cam_R in idea400_smplx_HPE and some missing videos in idea400

IDEA-Research / Motion-X

[NeurIPS 2023] Official implementation of the paper "Motion-X: A Large-scale 3D Expressive Whole-body Human Motion Dataset"

https://motion-x-dataset.github.io

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Open phj128 opened 4 months ago

phj128 commented 4 months ago

Hi, thanks for your dataset. I have some questions about the provided HPE for idea400.

What is the role of cam_R? I have checked cam_R in the provided data, the max element-wise difference between cam_R and identity 3x3 matrix is around 0.06.
RGB video data lacks some videos. For example, HPE provides npz files in idea400_smplx_HPE/new_ntu_thu_15fps/subset_0014 while no mp4 files in idea400_video/new_ntu_thu_15fps/subset_0014.

phj128 commented 4 months ago

Furthermore, what are the text labels of each video?