Tide filtering for video surveillance system
    7.
    发明授权
    Tide filtering for video surveillance system 有权
    视频监控系统潮汐滤波

    公开(公告)号:US07424167B1

    公开(公告)日:2008-09-09

    申请号:US10954479

    申请日:2004-10-01

    IPC分类号: G06K9/40

    CPC分类号: G06K9/00771

    摘要: A machine-accessible medium containing software code that, when read by a computer, causes the computer to perform method for filtering a video in a video system. The method may include generating a foreground mask and a background model from a video, where the foreground mask comprises moving pixels in the video and the background model comprises a statistical description, including a mean and a variance value, for each pixel in the video. Then the background model variance is filtered with a one-dimensional high pass filter in a single orientation. Next, for each linear grouping of pixels in the single orientation of the filtered variance, a first edge pixel is detected between a high-variance group of pixels and a low-variance group of pixels. Then a first waterline position is detected as an area bounded by the first edge pixels.

    摘要翻译: 一种包含软件代码的机器可访问介质,当由计算机读取时,计算机执行用于过滤视频系统中的视频的方法。 该方法可以包括从视频生成前景掩码和背景模型,其中前景掩码包括视频中的移动像素,并且背景模型包括视频中每个像素的统计描述,包括均值和方差值。 然后用单一方向的一维高通滤波器过滤背景模型方差。 接下来,对于滤波方差的单个取向中的每个线性分组的像素,在高方差组像素和低方差像素组之间检测第一边缘像素。 然后,将第一水线位置检测为由第一边缘像素界定的区域。

    STATIONARY TARGET DETECTION BY EXPLOITING CHANGES IN BACKGROUND MODEL
    9.
    发明申请
    STATIONARY TARGET DETECTION BY EXPLOITING CHANGES IN BACKGROUND MODEL 有权
    通过在背景模型中发现变化的静态目标检测

    公开(公告)号:US20150146929A1

    公开(公告)日:2015-05-28

    申请号:US14610582

    申请日:2015-01-30

    IPC分类号: G06K9/00 G06K9/62

    摘要: Provided is a computer-implemented method for processing one or more video frames. The meth can include generating, by a processor, a change in value of one or more pixels obtained from the one or more video frames; classifying, by the processor, the change in value of the one or more pixels to produce one or more classes of the change in value of the one or more pixels, wherein the one or more classes include one or more of a stationary target, a moving target, a target insertion, a target removal, or a local change; and constructing, by the processor, a listing of detected targets based on the one or more classes.

    摘要翻译: 提供了一种用于处理一个或多个视频帧的计算机实现的方法。 该技术可以包括由处理器生成从一个或多个视频帧获得的一个或多个像素的值的改变; 由所述处理器对所述一个或多个像素的值的变化进行分类,以产生所述一个或多个像素的值的变化的一个或多个类别,其中所述一个或多个类包括静止目标, 移动目标,目标插入,目标移除或本地更改; 以及由所述处理器构建基于所述一个或多个类的检测到的目标的列表。