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Hierarchical Neural Implicit Pose Network for Animation and Motion Retargeting
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Hierarchical Neural Implicit Pose Network for Animation and Motion Retargeting
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Paper
Hierarchical Neural Implicit Pose Network for Animation and Motion Retargeting
2021
Overview
We present HIPNet, a neural implicit pose network trained on multiple subjects across many poses. HIPNet can disentangle subject-specific details from pose-specific details, effectively enabling us to retarget motion from one subject to another or to animate between keyframes through latent space interpolation. To this end, we employ a hierarchical skeleton-based representation to learn a signed distance function on a canonical unposed space. This joint-based decomposition enables us to represent subtle details that are local to the space around the body joint. Unlike previous neural implicit method that requires ground-truth SDF for training, our model we only need a posed skeleton and the point cloud for training, and we have no dependency on a traditional parametric model or traditional skinning approaches. We achieve state-of-the-art results on various single-subject and multi-subject benchmarks.
Publisher
Cornell University Library, arXiv.org
Subject
