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Non-rigid Structure-from-Motion: Temporally-smooth Procrustean Alignment and Spatially-variant Deformation Modeling
May 8, 2024, 4:46 a.m. | Jiawei Shi, Hui Deng, Yuchao Dai
cs.CV updates on arXiv.org arxiv.org
Abstract: Even though Non-rigid Structure-from-Motion (NRSfM) has been extensively studied and great progress has been made, there are still key challenges that hinder their broad real-world applications: 1) the inherent motion/rotation ambiguity requires either explicit camera motion recovery with extra constraint or complex Procrustean Alignment; 2) existing low-rank modeling of the global shape can over-penalize drastic deformations in the 3D shape sequence. This paper proposes to resolve the above issues from a spatial-temporal modeling perspective. First, …
abstract alignment applications arxiv challenges cs.cv extra hinder key modeling progress recovery rotation type world
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