Event Semantics in Two-person Interactions

Authors:
Sangho Park;J. K. Aggarwal
Affiliations:
The University of Texas at Austin;The University of Texas at Austin
Venue:
ICPR '04 Proceedings of the Pattern Recognition, 17th International Conference on (ICPR'04) Volume 4 - Volume 04
Year:
2004

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Abstract

This paper presents a method to represent two-person interactions at a semantic level with a natural language description. A human interaction is composed of two single-person actions, which in turn are made up of torso and arm/leg motions. We adopt the 'everb argument structure' in linguistics to represent human action in terms of triplets. Various two-person interactions are represented at a detailed level using multiple triplets aligned along a time line according to the spatial/temporal constraints of the interactions. Our method provides a user-friendly natural-language description of various human interactions, and properly describes positive, neutral, and negative interactions occurring between two persons.