BACKGROUND-FOREGROUND MODULE FOR VIDEO ANALYSIS SYSTEM
    2.
    发明申请
    BACKGROUND-FOREGROUND MODULE FOR VIDEO ANALYSIS SYSTEM 有权
    视频分析系统背景模块

    公开(公告)号:US20090087096A1

    公开(公告)日:2009-04-02

    申请号:US12129521

    申请日:2008-05-29

    IPC分类号: G06K9/46 G06K9/62

    CPC分类号: G06K9/38

    摘要: Embodiments of the present invention provide a method and a module for identifying a background of a scene depicted in an acquired stream of video frames that may be used by a video-analysis system. For each pixel or block of pixels in an acquired video frame a comparison measure is determined. The comparison measure depends on difference of color values exhibited in the acquired video frame and in a background image respectively by the pixel or block of pixels and a corresponding pixel and block of pixels in the background image. To determine the comparison measure, the resulting difference is considered in relation to a range of possible color values. If the comparison measure is above a dynamically adjusted threshold, the pixel or the block of pixels is classified as a part of the background of the scene.

    摘要翻译: 本发明的实施例提供了一种用于识别视频分析系统可以使用的所获取的视频帧流中描绘的场景的背景的方法和模块。 对于所获取的视频帧中的每个像素或像素块,确定比较度量。 比较测量取决于所获取的视频帧和背景图像中分别由像素或像素块以及背景图像中的对应像素和像素块显示的颜色值的差异。 为了确定比较测量,考虑到与可能的颜色值的范围的差异。 如果比较度量高于动态调整的阈值,像素或像素块被分类为场景背景的一部分。

    Background-foreground module for video analysis system
    4.
    发明授权
    Background-foreground module for video analysis system 有权
    视频分析系统的背景前景模块

    公开(公告)号:US08094943B2

    公开(公告)日:2012-01-10

    申请号:US12129521

    申请日:2008-05-29

    IPC分类号: G06K9/46 G06K9/62 G06K9/00

    CPC分类号: G06K9/38

    摘要: Embodiments of the present invention provide a method and a module for identifying a background of a scene depicted in an acquired stream of video frames that may be used by a video-analysis system. For each pixel or block of pixels in an acquired video frame a comparison measure is determined. The comparison measure depends on difference of color values exhibited in the acquired video frame and in a background image respectively by the pixel or block of pixels and a corresponding pixel and block of pixels in the background image. To determine the comparison measure, the resulting difference is considered in relation to a range of possible color values. If the comparison measure is above a dynamically adjusted threshold, the pixel or the block of pixels is classified as a part of the background of the scene.

    摘要翻译: 本发明的实施例提供了一种用于识别视频分析系统可以使用的所获取的视频帧流中描绘的场景的背景的方法和模块。 对于所获取的视频帧中的每个像素或像素块,确定比较度量。 比较测量取决于所获取的视频帧和背景图像中分别由像素或像素块以及背景图像中的对应像素和像素块显示的颜色值的差异。 为了确定比较测量,考虑到与可能的颜色值的范围的差异。 如果比较度量高于动态调整的阈值,像素或像素块被分类为场景背景的一部分。

    Dark scene compensation in a background-foreground module of a video analysis system
    10.
    发明授权
    Dark scene compensation in a background-foreground module of a video analysis system 有权
    在视频分析系统的背景前景模块中进行黑暗场景补偿

    公开(公告)号:US08064695B2

    公开(公告)日:2011-11-22

    申请号:US12129539

    申请日:2008-05-29

    IPC分类号: G06K9/34 H04N7/12 G06K9/00

    CPC分类号: G06K9/38

    摘要: Embodiments of the present invention provide a method and a module for identifying a background of a scene depicted in an acquired stream of video frames that may be used by a video-analysis system. For each pixel or block of pixels in an acquired video frame a comparison measure is determined. The comparison measure depends on difference of color values exhibited in the acquired video frame and in a background image respectively by the pixel or block of pixels and a corresponding pixel and block of pixels in the background image. To determine the comparison measure, the resulting difference is considered in relation to a range of possible color values. If the comparison measure is above a dynamically adjusted threshold, the pixel or the block of pixels is classified as a part of the background of the scene.

    摘要翻译: 本发明的实施例提供了一种用于识别视频分析系统可以使用的所获取的视频帧流中描绘的场景的背景的方法和模块。 对于所获取的视频帧中的每个像素或像素块,确定比较度量。 比较测量取决于所获取的视频帧和背景图像中分别由像素或像素块以及背景图像中的对应像素和像素块显示的颜色值的差异。 为了确定比较测量,考虑到与可能的颜色值的范围的差异。 如果比较度量高于动态调整的阈值,像素或像素块被分类为场景背景的一部分。