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isarandi / metrabs

Estimate absolute 3D human poses from RGB images.

Home Page:https://arxiv.org/abs/2007.07227

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The human z-axis is unstable

psiydown opened this issue · comments

commented

Hi @isarandi ,
The human z-axis is unstable. Squatting slightly predict that the z-axis is far away from the lens with instability, and the y-axis is offset at the same time. It looks normal in the front view, but it can be seen that the front and back drift and jump up and down in the side view. Standing feet should always touch the ground，Body z-axis drift and It seems abnormal for feet to be off the ground or buried on the ground. I think you should have a way to correct it to make the predict more accurate. Thank you!

commented

Download this video for predict. You can find the problem by observing the Z-axis and Y-axis of the human body in the side view.

commented

Thanks for the suggestion. The method works frame by frame and therefore temporal consistency of depth may be reduced especially with strong pose changes, such as squatting and standing up. This isn't really an issue within the scope of this repo.