Real time multiple objects tracking and identification based on discrete wavelet transform

  • Authors:

  • Fang-Hsuan Cheng;Yu-Liang Chen

  • Affiliations:

  • Institute of Computer Science and Information Engineering, Chung Hua University, No. 707, Sector 2, Wu-Fu Road, Hsinchu 300, Taiwan;Institute of Computer Science and Information Engineering, Chung Hua University, No. 707, Sector 2, Wu-Fu Road, Hsinchu 300, Taiwan

  • Venue:
  • Pattern Recognition
  • Year:
  • 2006

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Abstract

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.