Path analysis in multiple-target video sequences

Authors:
Brais Cancela;Marcos Ortega;Alba Fernández;Manuel G. Penedo
Affiliations:
Department of Computer Science, University of A Coruña, Spain;Department of Computer Science, University of A Coruña, Spain;Department of Computer Science, University of A Coruña, Spain;Department of Computer Science, University of A Coruña, Spain
Venue:
ICIAP'11 Proceedings of the 16th international conference on Image analysis and processing - Volume Part II
Year:
2011

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Abstract

Path analysis becomes a powerful tool when dealing with behavior analysis, i. e., detecting abnormal movements. In a multiple target scenario it is complicated to obtain each object path because of collision events, such as grouping and splitting targets, and occlusions, both total or partial. In this work, a method to obtain the similarity between different trajectories is presented, based in register techniques. In addition, an hierarchical architecture is used to obtain the corresponding paths of the objects in a scene, to cope with collision events. Experimental results show promising results in path analysis, enabling it to establish thresholds to abnormal path detection.