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CVPR
2009
IEEE
16 years 5 months ago
Reconstructing Sharply Folding Surfaces: A Convex Formulation
In recent years, 3D deformable surface reconstruction from single images has attracted renewed interest. It has been shown that preventing the surface from either shrinking or s...
Mathieu Salzmann (University of California, Berkel...
119
Voted
CVPR
2009
IEEE
16 years 5 months ago
In Defense of Orthonormality Constraints for Nonrigid Structure from Motion
In factorization approaches to nonrigid structure from motion, the 3D shape of a deforming object is usually modeled as a linear combination of a small number of basis shapes. T...
Ijaz Akhter (LUMS, Lahore, Pakistan), Yaser Sheikh...
141
Voted
CVPR
2009
IEEE
16 years 5 months ago
Active Learning for Large Multi-class Problems
Scarcity and infeasibility of human supervision for large scale multi-class classification problems necessitates active learning. Unfortunately, existing active learning methods ...
Prateek Jain (University of Texas at Austin), Ashi...
CVPR
2009
IEEE
1863views Computer Vision» more  CVPR 2009»
16 years 5 months ago
Abnormal Crowd Behavior Detection using Social Force Model
In this paper we introduce a novel method to detect and localize abnormal behaviors in crowd videos using Social Force model. For this purpose, a grid of particles is placed ove...
Alexis Oyama, Mubarak Shah, Ramin Mehran
108
Voted
CVPR
2009
IEEE
16 years 5 months ago
Capturing 3D Stretchable Surfaces from Single Images in Closed Form
We present a closed-form solution to the problem of recovering the 3D shape of a non-rigid potentially stretchable surface from 3D-to-2D correspondences. In other words, we can ...
Francesc Moreno-Noguer (Institut de Robotica i Inf...