Moving object detection in wavelet compressed video


Toreyin B. U., CETIN A., AKSAY A., AKHAN M.

SIGNAL PROCESSING-IMAGE COMMUNICATION, vol.20, no.3, pp.255-264, 2005 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 20 Issue: 3
  • Publication Date: 2005
  • Doi Number: 10.1016/j.image.2004.12.002
  • Journal Name: SIGNAL PROCESSING-IMAGE COMMUNICATION
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.255-264
  • Keywords: moving region detection, wavelet compressed video
  • Istanbul Technical University Affiliated: No

Abstract

In many surveillance systems the video is stored in wavelet compressed form. In this paper, an algorithm for moving object and region detection in video which is compressed using a wavelet transform (WT) is developed. The algorithm estimates the WT of the background scene from the WTs of the past image frames of the video. The WT of the current image is compared with the WT of the background and the moving objects are determined from the difference. The algorithm does not perform inverse WT to obtain the actual pixels of the current image nor the estimated background. This leads to a computationally efficient method and a system compared to the existing motion estimation methods. (c) 2005 Published by Elsevier B.V.