Information about the smplx_openpose25.json file:
The JSON file contains following keys:
- smplx_keypoint_names: The names of the SMPL-X keypoints
- openpose25_keypoint_names: The names of the OpenPose keypoints. The order for OpenPose here is:
- 25 body keypoints
- 21 left hand keypoints
- 21 right hand keypoints
- 51 facial landmarks
- 17 contour landmarks
- openpose_idxs: The indices of the OpenPose keypoint array.
- smplx_idxs: The corresponding SMPL-X indices.
The attached script shows how to access the SMPLX keypoint corresponding to each OpenPose keypoint.
Note, some SMPLX keypoints do not match with the OpenPose keypoints, this is the list of keypoints that will not have a mapping: