A Convex Approach for Non-rigid Structure from Motion Via Sparse Representation

Junjie Hu, Terumasa Aoki

2017

Abstract

This paper presents a convex solution for simultaneously recovering 3D non-rigid structures and camera motions from 2D image sequences based on sparse representation. Most existing methods rely on low rank assumption. However, it will lead to poor reconstruction for objects with strong local deformation. Also, when camera motion is unknown, there is no convex solution for non-rigid structure from motion (NRSfM). In order to solve this problem, we estimate non-rigid structures by sparse representation. In this paper, we estimate camera motions through a sparse spectral-norm minimization approach, and then a fast l1-norm minimization algorithm is introduced to reconstruct 3D structures. Both of them are convex, therefore, our method gives a global optimum. Our method can handle objects with strong local deformation and also doesn’t need low rank prior. Experimental results show that our method achieves state-of-the-art reconstruction performance on CMU benchmark dataset.

Paper Citation

in Harvard Style

Hu J. and Aoki T. (2017). A Convex Approach for Non-rigid Structure from Motion Via Sparse Representation . In Proceedings of the 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 6: VISAPP, (VISIGRAPP 2017) ISBN 978-989-758-227-1, pages 333-339. DOI: 10.5220/0006078603330339

in Bibtex Style

@conference{visapp17,
author={Junjie Hu and Terumasa Aoki},
title={A Convex Approach for Non-rigid Structure from Motion Via Sparse Representation},
booktitle={Proceedings of the 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 6: VISAPP, (VISIGRAPP 2017)},
year={2017},
pages={333-339},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006078603330339},
isbn={978-989-758-227-1},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 6: VISAPP, (VISIGRAPP 2017)
TI - A Convex Approach for Non-rigid Structure from Motion Via Sparse Representation
SN - 978-989-758-227-1
AU - Hu J.
AU - Aoki T.
PY - 2017
SP - 333
EP - 339
DO - 10.5220/0006078603330339