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ICPR
2010
IEEE
14 years 7 months ago
Online Learning with Self-Organizing Maps for Anomaly Detection in Crowd Scenes
Detecting abnormal behaviors in crowd scenes is quite important for public security and has been paid more and more attentions. Most previous methods use offline trained model to p...
Jie Feng, Chao Zhang, Pengwei Hao
80
Voted
ICCV
1998
IEEE
15 years 11 months ago
Modeling Geometric Structure and Illumination Variation of a Scene from Real Images
We present in this paper a system which automatically builds, from real images, a scene model containing both 3D geometric information of the scene structure and its photometric...
Zhengyou Zhang
SIGGRAPH
2010
ACM
15 years 2 months ago
Line space gathering for single scattering in large scenes
We present an efficient technique to render single scattering in large scenes with reflective and refractive objects and homogeneous participating media. Efficiency is obtained...
Xin Sun, Kun Zhou, Stephen Lin, Baining Guo
CG
2008
Springer
14 years 9 months ago
Fast, parallel, and asynchronous construction of BVHs for ray tracing animated scenes
Recent developments have produced several techniques for interactive ray tracing of dynamic scenes. In particular, bounding volume hierarchies (BVHs) are efficient acceleration st...
Ingo Wald, Thiago Ize, Steven G. Parker
TOG
2002
208views more  TOG 2002»
14 years 9 months ago
Video matting of complex scenes
This paper describes a new framework for video matting, the process of pulling a high-quality alpha matte and foreground from a video sequence. The framework builds upon technique...
Yung-Yu Chuang, Aseem Agarwala, Brian Curless, Dav...