Journal
PATTERN RECOGNITION
Volume 39, Issue 6, Pages 1126-1139Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.patcog.2005.12.010
Keywords
video surveillance; discrete wavelet transform; inter-frame image difference; spatial information; motion detecting; object tracking; object identification
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A new method for detecting and tracking multiple moving objects based on discrete wavelet transform and identifying the moving objects by their color and spatial information is proposed in this paper. Many tracking algorithms have better performance under static background but get worse results under background with fake motions. Therefore, most of the tracking algorithms are used indoors instead of outdoor environment. Since discrete wavelet transform has a nice property that it can divide a frame into four different frequency bands without loss of the spatial information, it is adopted to solve this problem due to the fact that most of the fake motions in the background can be decomposed into the high frequency wavelet sub-band. In tracking multiple moving objects, many applications have problems when objects pass across each other. Color and spatial information are used in this paper to solve this problem. The experimental results prove the feasibility and usefulness of the proposed method. (c) 2006 Pattern Recognition Society. Published by Elsevier Ltd. All rights reserved.
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