Differentiable Dynamics for Articulated 3d Human Motion Reconstruction. (arXiv:2205.12256v1 [cs.CV])

We introduce DiffPhy, a differentiable physics-based model for articulated 3d
human motion reconstruction from video. Applications of physics-based reasoning
in human motion analysis have so far been limited, both by the complexity of
constructing adequate physical models of articulated human motion, and by the
formidable challenges of performing stable and efficient inference with physics
in the loop. We jointly address such modeling and inference challenges by
proposing an approach that combines a physically plausible body representation
with anatomical joint limits, …

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