Semantic Understanding of Continued and Recursive Human Activities

Authors:
M. S. Ryoo;J. K. Aggarwal
Affiliations:
University of Texas at Austin, Austin, TX 78712;University of Texas at Austin, Austin, TX 78712
Venue:
ICPR '06 Proceedings of the 18th International Conference on Pattern Recognition - Volume 01
Year:
2006

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Semantic Representation and Recognition of Continued and Recursive Human Activities

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Abstract

This paper presents a methodology for semantic understanding of complex and continued human activities. A context-free grammar (CFG) based representation scheme developed earlier is extended to construct a description for continued and recursive human activities. New system recognizes recursively described high-level interactions: fighting and greeting. The system understands activities by detecting the time intervals that satisfy their semantic descriptions.