关键词: 背景差, 背景重构, 运动检测, 视频对象分割, 视频监控

Abstract: An object segmentation algorithm based on background subtraction is presented according to the features of river surveillance video. First pixels are classified by the hue and intensity values in the HSI color space; then the background pixels are determined by a block-based algorithm; at last the moving objects are extracted with the background subtraction.

Key words: background subtraction, background reconstruction, motion detection, video object segmentation, visual surveillance