Scene Segmentation for Behaviour Correlation

Authors:
Jian Li;Shaogang Gong;Tao Xiang
Affiliations:
Department of Computer Science Queen Mary College, University of London, London, UK E1 4NS;Department of Computer Science Queen Mary College, University of London, London, UK E1 4NS;Department of Computer Science Queen Mary College, University of London, London, UK E1 4NS
Venue:
ECCV '08 Proceedings of the 10th European Conference on Computer Vision: Part IV
Year:
2008

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Abstract

This paper presents a novel framework for detecting abnormal pedestrian and vehicle behaviour by modelling cross-correlation among different co-occurring objects both locally and globally in a given scene. We address this problem by first segmenting a scene into semantic regions according to how object events occur globally in the scene, and second modelling concurrent correlations among regional object events both locally (within the same region) and globally (across different regions). Instead of tracking objects, the model represents behaviour based on classification of atomic video events, designed to be more suitable for analysing crowded scenes. The proposed system works in an unsupervised manner throughout using automatic model order selection to estimate its parameters given video data of a scene for a brief training period. We demonstrate the effectiveness of this system with experiments on public road traffic data.