Mixed state models for automatic target recognition and behavior analysis in video sequences

Rama Chellappa; Aswin C. Sankaranarayanan; Ashok Veeraraghavan

doi:10.1117/12.777766

14 April 2008 Mixed state models for automatic target recognition and behavior analysis in video sequences

Rama Chellappa, Aswin C. Sankaranarayanan, Ashok Veeraraghavan

Proceedings Volume 6967, Automatic Target Recognition XVIII; 69670Q (2008) https://doi.org/10.1117/12.777766
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

Abstract

Mixed state or hybrid state space systems are useful tools for various problems in computer vision. These systems model complicated system dynamics as a mixture of inherently simple sub-systems, with an additional mechanism to switch between the sub-systems. This approach of modeling using simpler systems allows for ease in learning the parameters of the system and in solving the inference problem. In this paper, we study the use of such mixed state space systems for problems in recognition and behavior analysis in video sequences. We begin with a dynamical system formulation for recognition of faces from a video. This system is used to introduce the simultaneous tracking and recognition paradigm that allows for improved performance in both tracking and recognition. We extend this framework to design a second system for verification of vehicles across non-overlapping views using structural and textural fingerprints for characterizing the identity of the target. Finally, we show the use of such modeling for tracking and behavior analysis of bees from video.

Citation Download Citation

Rama Chellappa, Aswin C. Sankaranarayanan, and Ashok Veeraraghavan "Mixed state models for automatic target recognition and behavior analysis in video sequences", Proc. SPIE 6967, Automatic Target Recognition XVIII, 69670Q (14 April 2008); https://doi.org/10.1117/12.777766

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KEYWORDS

Motion models

Video

Systems modeling

Visual process modeling

Facial recognition systems

Abdomen

Dynamical systems

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