Intrinsic dense 3D surface tracking

Abstract : This paper presents a novel intrinsic 3D surface distance and its use in a complete probabilistic tracking framework for dynamic 3D data. Registering two frames of a deforming 3D shape relies on accurate correspondences between all points across the two frames. In the general case such correspondence search is computationally intractable. Common prior assumptions on the nature of the deformation such as near-rigidity, isometry or learning from a training set, reduce the search space but often at the price of loss of accuracy when it comes to deformations not in the prior assumptions. If we consider the set of all possible 3D surface matchings defined by specifying triplets of correspondences in the uniformization domain, then we introduce a new matching cost between two 3D surfaces. The lowest feature differences across this set of matchings that cause two points to correspond, become the matching cost of that particular correspondence. We show that for surface tracking applications, the matching cost can be efficiently computed in the uniformization domain. This matching cost is then combined with regularization terms that enforce spatial and temporal motion consistencies, into a maximum a posteriori (MAP) problem which we approximate using a Markov Random Field (MRF). Compared to previous 3D surface tracking approaches that either assume isometric deformations or consistent features, our method achieves dense, accurate tracking results, which we demonstrate through a series of dense, anisometric 3D surface tracking experiments.
Type de document :
Communication dans un congrès
24th IEEE Conference on Computer Vision and Pattern Recognition - CVPR 2011, Jun 2011, Colorado Springs, United States. pp.1225-1232, 2011
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https://hal.archives-ouvertes.fr/hal-00856137
Contributeur : Vivien Fécamp <>
Soumis le : vendredi 30 août 2013 - 15:04:48
Dernière modification le : mardi 5 février 2019 - 13:52:14

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  • HAL Id : hal-00856137, version 1

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Yun Zeng, Chaohui Wang, Yang Wang, Xianfeng Gu, Dimitris Samaras, et al.. Intrinsic dense 3D surface tracking. 24th IEEE Conference on Computer Vision and Pattern Recognition - CVPR 2011, Jun 2011, Colorado Springs, United States. pp.1225-1232, 2011. 〈hal-00856137〉

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