Normalized Cuts and Image Segmentation
CVPR '97 Proceedings of the 1997 Conference on Computer Vision and Pattern Recognition (CVPR '97)
Multiple View Geometry in Computer Vision
Multiple View Geometry in Computer Vision
A Measure of Deformability of Shapes, with Applications to Human Motion Analysis
CVPR '05 Proceedings of the 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05) - Volume 1 - Volume 01
Articulated Structure from Motion by Factorization
CVPR '05 Proceedings of the 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05) - Volume 2 - Volume 02
Automatic Kinematic Chain Building from Feature Trajectories of Articulated Objects
CVPR '06 Proceedings of the 2006 IEEE Computer Society Conference on Computer Vision and Pattern Recognition - Volume 1
Non-Rigid Metric Shape and Motion Recovery from Uncalibrated Images Using Priors
CVPR '06 Proceedings of the 2006 IEEE Computer Society Conference on Computer Vision and Pattern Recognition - Volume 1
Surface Deformation Models for Nonrigid 3D Shape Recovery
IEEE Transactions on Pattern Analysis and Machine Intelligence
Iterative Extensions of the Sturm/Triggs Algorithm: Convergence and Nonconvergence
IEEE Transactions on Pattern Analysis and Machine Intelligence
Nonrigid Structure-from-Motion: Estimating Shape and Motion with Hierarchical Priors
IEEE Transactions on Pattern Analysis and Machine Intelligence
Video synchronization from human motion using rank constraints
Computer Vision and Image Understanding
Learning Articulated Structure and Motion
International Journal of Computer Vision
Multibody Structure-from-Motion in Practice
IEEE Transactions on Pattern Analysis and Machine Intelligence
Large Displacement Optical Flow: Descriptor Matching in Variational Motion Estimation
IEEE Transactions on Pattern Analysis and Machine Intelligence
Trajectory Space: A Dual Representation for Nonrigid Structure from Motion
IEEE Transactions on Pattern Analysis and Machine Intelligence
J-HGBU '11 Proceedings of the 2011 joint ACM workshop on Human gesture and behavior understanding
Non-rigid structure from motion with complementary rank-3 spaces
CVPR '11 Proceedings of the 2011 IEEE Conference on Computer Vision and Pattern Recognition
Automated articulated structure and 3D shape recovery from point correspondences
ICCV '11 Proceedings of the 2011 International Conference on Computer Vision
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Non-rigid structure estimates are often performed under the assumption that linear combination of a few rigid basis shapes can describe the deformation. However, the quality of reconstruction suffers as the number of basis shapes increase. When a natural video (which may contain rigid, articulated and non-rigid objects together with camera motion) is to be processed, the complexity of motion precludes use of rigid SFM methods. We propose that this problem may be approached using the notions of heterogeneity, articulation and stationarity. In this paper, we present a scheme for structure recovery based on motion classification and automatic selection of reconstruction algorithms for each scene object. Rigid, low-rank non-rigid and articulated structures are reconstructed separately. Using sub-sequence stationarity graphs, these are stitched together to form a coherent structure. We tested our method on data from human motion capture for objective analysis and provide results on natural videos.