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A Novel Part-based Approach to Mean-shift Algorithm for Visual Tracking

Jae Pil Hwang, Jeonghyun Baek, Baehoon Choi, and Euntai Kim*
International Journal of Control, Automation, and Systems, vol. 13, no. 2, pp.443-453, 2015

Abstract : Visual tracking is one of the most important problems considered in computer vision. To improve the performance of the visual tracking, a part-based approach will be a good solution. In this paper, a novel method of visual tracking algorithm named part-based mean-shift (PBMS) algorithm is presented. In the proposed PBMS, unlike the standard mean-shift (MS), the target object is divided into multiple parts and the target is tracked by tracking each individual part and combining the results. For the part-based visual tracking, the objective function in the MS is modified such that the target object is represented as a combination of the parts and iterative optimization solution is presented. Further, the proposed PBMS provides a systematic and analytic way to determine the scale of the bounding box for the target from the perspective of the objective function optimization. Simulation is conducted with several benchmark problems and the result shows that the proposed PBMS outperforms the standard MS.

Keyword : Mean-shift tracking, part based approach, scale adaptive tracking, visual tracking.

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