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公开(公告)号:US07577294B2
公开(公告)日:2009-08-18
申请号:US11382697
申请日:2006-05-10
申请人: Kentaro Toyama , John Krumm , Barry L. Brummitt , Brian R. Meyers
发明人: Kentaro Toyama , John Krumm , Barry L. Brummitt , Brian R. Meyers
CPC分类号: G06K9/38 , G06T7/11 , G06T7/174 , G06T7/194 , G06T2207/10016 , G06T2207/20016 , G06T2207/20081
摘要: A system and method for maintaining a background model of an image sequence by processing on multiple spatial scales. These multiple spatial scales include a pixel scale, a regional scale and a frame scale. The image sequence undergoes pixel processing that determines a current background model and provides an initial pixel assignment as either a background or a foreground pixel. Region processing further refines the initial pixel assignments by considering relationships between pixels and possibly reassigning pixels. Frame processing further refines the current background model by determining whether a substantial change has occurred in the actual background and, if so, providing a more accurate background model.
摘要翻译: 一种用于通过在多个空间尺度上处理来维护图像序列的背景模型的系统和方法。 这些多个空间尺度包括像素尺度,区域尺度和帧尺度。 图像序列经历像素处理,其确定当前背景模型,并将初始像素分配提供为背景或前景像素。 区域处理通过考虑像素之间的关系和可能重新分配的像素进一步优化初始像素分配。 帧处理通过确定在实际背景中是否发生实质性变化而进一步优化当前背景模型,如果是,则提供更准确的背景模型。