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arXiv · 2501.08815

Human Pose-Constrained UV Map Estimation

Matej Suchanek·Miroslav Purkrabek·Jiri Matas
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Abstract

UV map estimation is used in computer vision for detailed analysis of human posture or activity. Previous methods assign pixels to body model vertices by comparing pixel descriptors independently, without enforcing global coherence or plausibility in the UV map. We propose Pose-Constrained Continuous Surface Embeddings (PC-CSE), which integrates estimated 2D human pose into the pixel-to-vertex assignment process. The pose provides global anatomical constraints, ensuring that UV maps remain coherent while preserving local precision. Evaluation on DensePose COCO demonstrates consistent improvement, regardless of the chosen 2D human pose model. Whole-body poses offer better constraints by incorporating additional details about the hands and feet. Conditioning UV maps with human pose reduces invalid mappings and enhances anatomical plausibility. In addition, we highlight inconsistencies in the ground-truth annotations.

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Matej Suchanek, Miroslav Purkrabek, Jiri Matas. 2025-01-15. Human Pose-Constrained UV Map Estimation. https://arxiv.org/abs/2501.08815

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