2D Articulated Pose Tracking Using Particle Filter with Partitioned Sampling and Model Constraints

Authors:
Chenguang Liu;Peng Liu;Jiafeng Liu;Jianhua Huang;Xianglong Tang
Affiliations:
Department of Computer Science, Harbin Institute of Technology, Harbin, China;Department of Computer Science, Harbin Institute of Technology, Harbin, China;Department of Computer Science, Harbin Institute of Technology, Harbin, China;Department of Computer Science, Harbin Institute of Technology, Harbin, China;Department of Computer Science, Harbin Institute of Technology, Harbin, China
Venue:
Journal of Intelligent and Robotic Systems
Year:
2010

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Abstract

In this paper, we develop a two-dimensional articulated body tracking algorithm based on the particle filtering method using partitioned sampling and model constraints. Particle filtering has been proven to be an effective approach in the object tracking field, especially when dealing with single-object tracking. However, when applying it to human body tracking, we have to face a "particle-explosion" problem. We then introduce partitioned sampling, applied to a new articulated human body model, to solve this problem. Furthermore, we develop a propagating method originated from belief propagation (BP), which enables a set of particles to carry several constraints. The proposed algorithm is then applied to tracking articulated body motion in several testing scenarios. The experimental results indicate that the proposed algorithm is effective and reliable for 2D articulated pose tracking.