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DispVoxNets: Non-Rigid Point Set Alignment with Supervised Learning Proxies

MPS-Authors
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Golyanik,  Vladislav
Computer Graphics, MPI for Informatics, Max Planck Society;

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Tretschk,  Edgar
Computer Graphics, MPI for Informatics, Max Planck Society;

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Theobalt,  Christian
Computer Graphics, MPI for Informatics, Max Planck Society;

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Fulltext (public)

arXiv:1907.10367.pdf
(Preprint), 7MB

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Citation

Shimada, S., Golyanik, V., Tretschk, E., Stricker, D., & Theobalt, C. (2019). DispVoxNets: Non-Rigid Point Set Alignment with Supervised Learning Proxies. Retrieved from http://arxiv.org/abs/1907.10367.


Cite as: http://hdl.handle.net/21.11116/0000-0005-7D04-B
Abstract
We introduce a supervised-learning framework for non-rigid point set alignment of a new kind - Displacements on Voxels Networks (DispVoxNets) - which abstracts away from the point set representation and regresses 3D displacement fields on regularly sampled proxy 3D voxel grids. Thanks to recently released collections of deformable objects with known intra-state correspondences, DispVoxNets learn a deformation model and further priors (e.g., weak point topology preservation) for different object categories such as cloths, human bodies and faces. DispVoxNets cope with large deformations, noise and clustered outliers more robustly than the state-of-the-art. At test time, our approach runs orders of magnitude faster than previous techniques. All properties of DispVoxNets are ascertained numerically and qualitatively in extensive experiments and comparisons to several previous methods.