文件名称:
Adaptive background mixture models for real-time tracking
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文件大小: 597kb
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上传时间: 2010-05-03
详细说明： A common method for real-time segmentation of moving regions in image sequences involves “back- ground subtraction,” or thresholding the error between an estimate of the image without moving objects and the current image. The numerous approaches to this problem differ in the type of background model used and the procedure used to update the model. This paper discusses modeling each pixel as a mixture of Gaus- sians and using an on-line approximation to update the model. The Gaussian distributions of the adaptive mi xture model are then evaluated to determine which are most likely to result from a background process. Each pixel is classified based on whether the Gaussian distribution which represents it most effectively is con- sidered part of the background model. This results in a stable, real-time outdoor tracker which reliably deals with lighting changes, repetitive motions from clutter, and long-term scene changes. This system has been run almost continuously for 16 months, 24 hours a day, through rain and snow. ...展开收缩
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