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» Surveillance Event Detection
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196
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AVSS
2009
IEEE
15 years 1 months ago
Counting People in Groups
Abstract--Cameras are becoming a common tool for automated vision purposes due to their low cost. In an era of growing security concerns, camera surveillance systems have become no...
Duc Fehr, Ravishankar Sivalingam, Vassilios Morell...
162
Voted
TIP
2010
119views more  TIP 2010»
14 years 10 months ago
Trajectory Classification Using Switched Dynamical Hidden Markov Models
This paper proposes an approach for recognizing human activities (more specifically, pedestrian trajectories) in video sequences, in a surveillance context. A system for automatic ...
Jacinto C. Nascimento, Mário A. T. Figueire...
155
Voted
JACM
2011
152views more  JACM 2011»
14 years 6 months ago
Robust principal component analysis?
This paper is about a curious phenomenon. Suppose we have a data matrix, which is the superposition of a low-rank component and a sparse component. Can we recover each component i...
Emmanuel J. Candès, Xiaodong Li, Yi Ma, Joh...
230
Voted
IJCV
2010
574views more  IJCV 2010»
15 years 2 months ago
Time-Delayed Correlation Analysis for Multi-Camera Activity Understanding
We propose a novel approach to understanding activities from their partial observations monitored through multiple non-overlapping cameras separated by unknown time gaps. In our...
Chen Change Loy, Tao Xiang, Shaogang Gong
127
Voted
ISI
2006
Springer
15 years 3 months ago
Tracing the Event Evolution of Terror Attacks from On-Line News
Since the September 11th terror attack at New York in 2001, the frequency of terror attacks around the world has been increasing and it draws more attention of the public. On Janua...
Christopher C. Yang, Xiaodong Shi, Chih-Ping Wei