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Structural Similarity-Based Object Tracking in Video Sequences

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4 Author(s)
Loza, A. ; Dept. of Electr. & Electron. Eng., Bristol Univ. ; Mihaylova, L. ; Canagarajah, N. ; Bull, David

This paper addresses the problem of object tracking in video sequences. The use of a structural similarity measure for tracking is proposed. The measure reflects the distance between two images by comparing their structural and spatial characteristics and has shown to be robust to illumination and contrast changes. As a result it guarantees robustness of the tracking process under changes in the environment. The previously used Bhattacharyya distance is not robust to such changes. Additionally, when a tracker is run with the Bhattacharyya distance, histograms should be calculated in order to find the likelihood function of the measurements. With the new function there is no need to calculate histograms. A particle filter (PF) is implemented where this measure is used for computing the distance between the reference and current frame. The algorithm performance has been tested and evaluated over real-world video sequences, and has been shown to outperform methods based on colour and edge histograms

Published in:

Information Fusion, 2006 9th International Conference on

Date of Conference:

10-13 July 2006

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