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公开(公告)号：US20090268098A1
公开(公告)日：2009-10-29
申请号：US12384178
申请日：2009-04-01
IPC分类号： H04N5/14
摘要： The method comprises the following steps: detection of non-static pixels in a picture, with respect to a preceding picture, calculation of the number of non-static pixels in the picture, calculation of the variation, in absolute value, of the number of non-static pixels for the picture, corresponding to the difference between the number of non-static pixels of the picture and that of the preceding picture, detection of a peak in the variation, the picture relative to the variation leading to the peak then being the first picture of the new scene. The applications relate to video coding, for example video stream switches.
摘要翻译： 该方法包括以下步骤：检测图像中的非静态像素，相对于前一图像，计算图像中的非静态像素的数量，绝对值的变化的计算， 图像的非静态像素对应于图像的非静态像素数与前一图像的非静态像素之间的差异，检测变化中的峰值，相对于导致峰值的变化的图像 新场景的第一张照片。 这些应用涉及视频编码，例如视频流交换机。
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2.发明申请公开(公告)号：US20060182184A1
公开(公告)日：2006-08-17
申请号：US11345888
申请日：2006-02-02
CPC分类号： G06T5/50 , G06T5/002 , G06T7/223 , G06T2207/10016 , G06T2207/20182 , H04N19/117 , H04N19/137 , H04N19/182 , H04N19/80 , H04N19/85
摘要： The invention relates to a device for pre-processing before encoding of a sequence of images including: means of storing the current frame and at least two preceding frames, means of defining a vicinity for each point of the current frame and for each corresponding point in the two preceding frames, means of measuring the motion of the current point relative to its position in the two preceding frames so as to detect whether the current point is in motion or in a static zone. According to the invention, the device includes: means of performing a spatial smoothing on the current point if the current point is in motion, means of performing a space-time smoothing if the current point is located in a static zone.
摘要翻译： 本发明涉及一种用于在图像序列编码之前进行预处理的装置，包括：存储当前帧和至少两个在前帧的装置，为当前帧的每个点和每个对应点定义附近的装置 两个前面的帧，用于测量当前点相对于其前两帧中的位置的运动的装置，以便检测当前点是运动中还是在静态区中。 根据本发明，该装置包括：如果当前点处于运动中则对当前点执行空间平滑的装置，如果当前点位于静态区中则执行空时平滑的装置。
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