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» Discrete optimization in computer vision
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CVPR
2006
IEEE
16 years 8 months ago
Pursuing Informative Projection on Grassmann Manifold
Inspired by the underlying relationship between classification capability and the mutual information, in this paper, we first establish a quantitative model to describe the inform...
Dahua Lin, Shuicheng Yan, Xiaoou Tang
CVPR
2006
IEEE
16 years 8 months ago
Visible Surface Reconstruction from Normals with Discontinuity Consideration
Given a dense set of imperfect normals obtained by photometric stereo or shape from shading, this paper presents an optimization algorithm which alternately optimizes until conver...
Tai-Pang Wu, Chi-Keung Tang
CVPR
2008
IEEE
16 years 8 months ago
Enforcing convexity for improved alignment with constrained local models
Constrained local models (CLMs) have recently demonstrated good performance in non-rigid object alignment/tracking in comparison to leading holistic approaches (e.g., AAMs). A maj...
Yang Wang, Simon Lucey, Jeffrey F. Cohn
ICCV
2007
IEEE
16 years 8 months ago
Interactive Offline Tracking for Color Objects
In this paper, we present an interactive offline tracking system for generic color objects. The system achieves 60100 fps on a 320 ? 240 video. The user can therefore easily refin...
Yichen Wei, Jian Sun, Xiaoou Tang, Heung-Yeung Shu...
ICCV
2007
IEEE
16 years 8 months ago
Axon radius measurements in vivo from diffusion MRI: a feasibility study
This paper investigates the feasibility of using diffusion MRI to measure axon-cell dimensions in the white matter of live subjects. A simple geometric model of white-matter tissu...
Daniel C. Alexander