Real-time tracking of human body based on discrete wavelet transform

Chen Chien Hsu*, Tsung Chi Lu, Ti Ho Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A novel colour-image real-time tracking system based on discrete wavelet transform is proposed in this paper for identifying human targets based on their color and spatial information. The configuration of the proposed tracking system includes a CCD camera mounted on a rotary platform for tracking moving objects. By using the position information of objects in the image frame captured by the camera, the rotary platform is controlled to position the tracking object around the central area of images to improve tracking efficiency. Existing researches of human-body tracking based on greyscale images generally ignored the facts that colours of the clothes that humans wear are salient features for identification purpose. As a result, we will incorporate colour information to establish important features for identifying human body in the proposed approach. Thanks to the use of discrete wavelet transform, computations, which are critical in real-time tracking, can be significantly reduced to achieve real-time tracking.

Original languageEnglish
Pages (from-to)996-1003
Number of pages8
JournalWSEAS Transactions on Systems
Issue number5
Publication statusPublished - 2007 May
Externally publishedYes


  • Colour image
  • Discrete wavelet transform
  • Human-body tracking
  • Image processing
  • Monitoring
  • Object tracking

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Computer Science Applications


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