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Anomaly detection in extremely crowded scenes using spatio-temporal motion pattern models
Conference proceeding

Anomaly detection in extremely crowded scenes using spatio-temporal motion pattern models

Louis Kratz, Ko Nishino and IEEE
2009 IEEE Conference on Computer Vision and Pattern Recognition, pp 1446-1453
Jun 2009

Abstract

Event detection Hidden Markov models Humans Image motion analysis Layout Motion analysis Motion detection Pattern analysis Ultraviolet sources Video sequences
Extremely crowded scenes present unique challenges to video analysis that cannot be addressed with conventional approaches. We present a novel statistical framework for modeling the local spatio-temporal motion pattern behavior of extremely crowded scenes. Our key insight is to exploit the dense activity of the crowded scene by modeling the rich motion patterns in local areas, effectively capturing the underlying intrinsic structure they form in the video. In other words, we model the motion variation of local space-time volumes and their spatial-temporal statistical behaviors to characterize the overall behavior of the scene. We demonstrate that by capturing the steady-state motion behavior with these spatio-temporal motion pattern models, we can naturally detect unusual activity as statistical deviations. Our experiments show that local spatio-temporal motion pattern modeling offers promising results in real-world scenes with complex activities that are hard for even human observers to analyze.

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Web of Science research areas
Computer Science, Artificial Intelligence
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