What is the definition of gt_classes?

[keiohta]

Hi authors,

Thanks for sharing the great codebase. I am trying to train OPD from scratch on my own dataset, but I'm not sure what value should I put to the gt_classes. I thought it is related to articulation type but you've already used it for gt_types (drawer, door, or lid). So, could you tell me what information should I put to the gt_classes?

Thanks,
Kei

[Jianghanxiao]

Thanks for your questions!! In gt_classes, it contains the part categories. Because we want to detect different parts. For the motion type, it's the motion attribute of the part. We don't encode it into the gt_classes. If you need more help, feel free to post here.

[keiohta]

Hi @Jianghanxiao, thanks for the answer! and sorry for the late reply. Let me ask two more questions to clarify my understanding.

In gt_classes, it contains the part categories. Because we want to detect different parts.

Is it correct that part categories consists of {drawer, door, lid}?

For the motion type, it's the motion attribute of the part.

Also, the motion type consists of {prismatic, revolute}?

[Jianghanxiao]

Yes, it's correct that part categories consists of {drawer, door, lid}. And it's correct that the motion type consists of {prismatic, revolute}

[keiohta]

Thank you for the answer. Now I can train OPD from scratch on our dataset. Thanks again!