about other code（SPIN）

[zhangzhenyu-zzy]

Hello, I want to add up3d dataset to your spin code framework for training, but I find that after I add it, 2D joint points cannot correspond. Do you need special settings?

[nkolot]

The joint order for ProHMR is almost the same as in SPIN (25 first from OpenPose and then 19 instead of 24 extra joints). These correspond to the first 44 joints from SPIN (we discard the last 5). What is the problem you are encountering?

[zhangzhenyu-zzy]

The joint order for ProHMR is almost the same as in SPIN (25 first from OpenPose and then 19 instead of 24 extra joints). These correspond to the first 44 joints from SPIN (we discard the last 5). What is the problem you are encountering?

Hello, in looking at the code of graphcmr, I found that in addition to the 24 joint points regressed from smpl, you also regressed an additional 14 joint points. Why not use the No. 1 and No. 2 joint points in smpl to correspond to the hip joint points in the data set, but use the additional No. 29 and No. 30? Can I replace the corresponding order with No. 1 joint point and No. 2 joint point in smpl? In addition, I have the same question about the joint point on the neck. Can I use No. 12 (neck) to replace the original No. 31?

[nkolot]

The locations of the hip joints are very different. The hips in the SMPL model are higher and closer to the middle of the body whereas in most of the other datasets there are near the boundary. Similarly for the neck joints. This is why we did not use the default joints provided by SMPL. You can visualize the joint locations for a given mesh and see the differences yourself.