4D semantic segmentation annotations

[cdforigua05]

I was wondering if you could help me with some questions regarding the dataset, precisely the 4D semantic segmentation benchmark.

I followed the instructions in the README.md in the HOID4D-Instructions repository. But I'm having some issues generating the 4D semantic segmentation annotations.

• what is the data_2Dseg_dir used in prepare_4Dseg/prepare_4Dseg_dataset.py (lines 12 & 88)? I downloaded the data from here and organized it as established in the README.MD file. However, I do not know where is the refine_2Dseg folder. I changed the refine_2Dseg for the 2Dseg folder that contains the shift_mask folder instead of the mask folder. Is that correct?

• In prepare_4Dseg/scene2frame.py (line 137), the code reads label3d_path. However, those label.txt files are not inside the 3Dseg folder. So I'm having an error because I can't find those files. Where I can find those files to generate the 4D semantic segmentation annotations.

Thank you very much for your time and collaboration.

[leolyliu]

Hi cdforigua05,

We are sorry for the trouble caused by the missing files. Could you please download the 4D semantic segnemtation data from the link SemSeg Challenge Data on our HOI4D Challenge website directly?

[QiueY514]

Hi cdforigua05,

We are sorry for the trouble caused by the missing files. Could you please download the 4D semantic segnemtation data from the link SemSeg Challenge Data on our HOI4D Challenge website directly?

Hi, I also have the same issue: (1) what is the data_2Dseg_dir used in prepare_4Dseg/prepare_4Dseg_dataset.py, and (2) I can't find label3d_path. And I can't access your provided SemSeg Challenge Data link:

Looking forward to your reply, thanks!