Is action_name required for the dataset?

[cacticaxas]

Hello,

I'm trying to implement a dataset that does not have any action_name. In the documentation provided (https://github.com/cure-lab/DeciWatch/blob/main/doc/data.md) it states that the data should be given in the following format of [action_name]/[sequence_name]/[image_id]. Can the action_name be omitted or must it be provided for my custom dataset?

[juxuan27]

You can simply omit it but this may cause some change of the code in visualization part (if you use the visualization of Human3.6M). But if you simply want to train and evaluate, this will not cause any problem.

[cacticaxas]

I see. Thank you for the explanation. I have, however, a follow-up question.

In my custom dataset, I have more than one pose annotations for each person in the frame. However, I noticed in the .npz files format that was provided, only one annotation is assigned to each frame eventhough there is more than one person in the frame. In this case I am referring to the "joints_2d" field in Sub-JHMDB dataset, where the shape of each sequence is the corresponding_sequence_length*(15*2).

Is it possible to include more than one annotations per frame for multi-person human pose estimation?

[juxuan27]

Sorry for the late reply. You may change the shape to corresponding_sequence_length*(30*2), where the 30 is the concat of 2 15 (in case you have 2 person). However, you may need some effort to change the visualization code if you do so.