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CVPR
2008
IEEE
16 years 6 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
ICIP
2005
IEEE
16 years 6 months ago
A probabilistic model for robust face alignment in videos
A new approach for localizing facial structure in videos is proposed in this paper by modeling shape alignment dynamically. The approach makes use of the spatial-temporal continuit...
Wei Zhang, Yi Zhou, Xiaoou Tang, Junhui Deng
ICIAP
2001
Springer
16 years 4 months ago
Global Optimization of Deformable Surface Meshes Based on Genetic Algorithms
Deformable models are by their formulation able to solve surface extraction problem from noisy volumetric image data encountered commonly in medical image analysis. However, this ...
Jussi Tohka
GMP
2008
IEEE
114views Solid Modeling» more  GMP 2008»
15 years 10 months ago
Detection of Planar Regions in Volume Data for Topology Optimization
We propose a method to identify planar regions in volume data using a specialized version of the discrete Radon transform operating on a structured or unstructured grid. The algori...
Ulrich Bauer, Konrad Polthier
ICMCS
2006
IEEE
181views Multimedia» more  ICMCS 2006»
15 years 10 months ago
A Fast Downsizing Video Transcoder for H.264/AVC with Rate-Distortion Optimal Mode Decision
This paper focuses on the mode decision and motion selection problem when H.264/AVC video streams are transcoded in spatial resolution. A fast downsizing transcoding scheme is dev...
Huifeng Shen, Xiaoyan Sun, Feng Wu, Houqiang Li, S...