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Sensors 2014, 14(11), 20736-20752; doi:10.3390/s141120736

A Target Model Construction Algorithm for Robust Real-Time Mean-Shift Tracking

Department of Newmedia, Korean German Institute of Technology, 99, Hwagok-ro 61-gil, Gangseo-gu, Seoul 157-930, Korea
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Received: 13 August 2014 / Revised: 21 October 2014 / Accepted: 27 October 2014 / Published: 3 November 2014
(This article belongs to the Section Physical Sensors)
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Abstract

Mean-shift tracking has gained more interests, nowadays, aided by its feasibility of real-time and reliable tracker implementation. In order to reduce background clutter interference to mean-shift object tracking, this paper proposes a novel indicator function generation method. The proposed method takes advantage of two ‘a priori’ knowledge elements, which are inherent to a kernel support for initializing a target model. Based on the assured background labels, a gradient-based label propagation is performed, resulting in a number of objects differentiated from the background. Then the proposed region growing scheme picks up one largest target object near the center of the kernel support. The grown object region constitutes the proposed indicator function and this allows an exact target model construction for robust mean-shift tracking. Simulation results demonstrate the proposed exact target model could significantly enhance the robustness as well as the accuracy of mean-shift object tracking. View Full-Text
Keywords: mean-shift; object tracking; background clutter; asymmetric kernel mean-shift; object tracking; background clutter; asymmetric kernel
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Choi, Y.-J.; Kim, Y.-G. A Target Model Construction Algorithm for Robust Real-Time Mean-Shift Tracking. Sensors 2014, 14, 20736-20752.

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