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zc-alexfan / arctic

[CVPR 2023] Official repository for downloading, processing, visualizing, and training models on the ARCTIC dataset.
https://arctic.is.tue.mpg.de
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projected SMPL-X meshes don't overlay well in allocentric views #52

Closed nehc0 closed 2 months ago

nehc0 commented 2 months ago

Hello. I use my custom visualization pipeline for allocentric views, transforming the SMPL-X mesh vertices from world coordinates to pixel assuming a pinhole camera model using the extrinsic and intrinsic matrices you provide in meta/misc.json. However, I observe that in some cases the projected meshes don't overlay well with the humans in images. Is it my problem?

Some examples:

[s01/box_use_02/6] s01/box_use_02/6

[s01/espressomachine_grab_01/7] s01/espressomachine_grab_01/7

[s08/capsulemachine_use_01/5] s08/capsulemachine_use_01/5

zc-alexfan commented 2 months ago

Thanks for your question. Maybe you can test with my visualization because I also cannot see the issue here.

nehc0 commented 2 months ago

Thanks for your question. Maybe you can test with my visualization because I also cannot see the issue here.

Did you crop image or apply distortion before visualization for allocentric views?

zc-alexfan commented 2 months ago

Distortion is not a main factor in allocentric view. My visualization script first loads the data and then apply the visualization. Maybe you can just try that data loader.

nehc0 commented 2 months ago

Distortion is not a main factor in allocentric view. My visualization script first loads the data and then apply the visualization. Maybe you can just try that data loader.

Solved. I made a stupid mistake of using 'neutral' rather than gendered smplx for all meshes. After I fixed it, the rendered results seemed much more acceptable:

[s01/box_use_02/6-fix] s01-box_use_02-6_fix

[s01/espressomachine_grab_01/7-fix] s01-espressomachine_grab_01-7_fix