Questions about Data

[ChangeNext]

1. When I finished creating the data In the abs(reference1 - reference1_1).sum() part of motion representation.ipynb, I got a value of 1.1061554 instead of a zero. If I don't get a zero, I wonder if I didn't create the data correctly.

2. I don't know what the new_joint_vecs data means. I would appreciate some clarification please.

[EricGuo5513]

Hi,

1. this range of error should also be fine in my sense. You could try to visualize the results and see if it is correct or not. I know some people have made it smaller. It can be attributed to different environments and hardware platforms.
2. The new_joint_vecs are 263-D extracted motion features. The descriptions are as follows:

root_rot_velocity (B, seq_len, 1)

root_linear_velocity (B, seq_len, 2)# root_y (B, seq_len, 1)#

ric_data (B, seq_len, (joint_num - 1)*3)# rot_data (B, seq_len, (joint_num - 1)6)# local_velocity (B, seq_len, joint_num3)# foot contact (B, seq_len, 4)

NLP @.***> 于2023年6月26日周一 06:15写道：

When I finished creating the data In the abs(reference1 - reference1_1).sum() part of motion representation.ipynb, I got a value of 1.1061554 instead of a zero. If I don't get a zero, I wonder if I didn't create the data correctly. 2.

I don't know what the new_joint_vecs data means. I would appreciate some clarification please.

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[laugher07]

Hi！I have a question about the joints. the SMPL has 23 joints and one root joint, but the humanML3D gets 22 joints，What is the difference between these two?

[EricGuo5513]

We keep the first 22 joints of SMPL. The 23th and 24th joints are hand joints, which are not available in HumanAct12.

laugher07 @.***> 于2023年6月26日周一 22:24写道：

Hi！I have a question about the joints. the SMPL has 23 joints and one root joint, but the humanML3D gets 22 joints，What is the difference between these two?

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[laugher07]

ok， Thank you ！