Stationary background generation in mpeg compressed video sequences

Abstract

The development of the new video coding standard, MPEG- 4, has triggered many video segmentation algorithms that address the generation of the video object planes (VOPs). The background of a video scene is one kind of VOPs where all other video objects are layered on. In this paper, we propose a method for the generation of the stationary background in a MPEG compressed video sequence. If the objects move frequently and all the components of the background are visible in the video sequence, the background macroblocks can be constructed by using Discrete Cosine Transform (DCT) DC coefficients of the blocks. After the generation of the stationary background, the moving objects can be extracted by taking the difference between the frames and the background.