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1. 发明申请

WO2009155979A1 DETECTING REPETITION IN DIGITAL VIDEO 审中-公开
标题翻译：检测数字视频中的重复
公开(公告)号：WO2009155979A1
公开(公告)日：2009-12-30
申请号：PCT/EP2008/058146
申请日：2008-06-26
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , BOCK, Alois Martin , AMMU, Satyaghosh
发明人： BOCK, Alois Martin , AMMU, Satyaghosh
IPC分类号： H04N7/26 , H04N5/14
CPC分类号： H04N19/85 , G06T7/207 , H04N7/0115 , H04N19/132 , H04N19/137 , H04N19/172 , H04N19/53
摘要： There is provided a method of detecting repeated pictures in a sequence of video picture data, each picture of said video picture data comprising a plurality of macroblocks, the method comprising performing hierarchical motion estimation on the video picture data to provide best motion vectors for each macroblock, best motion vector sum of absolute difference values for each macro block and zero motion vector sum of absolute difference values for each macroblock, wherein the hierarchical motion estimation includes a plurality of levels, and said best motion vectors, best motion vector sum of absolute difference values and zero motion vector sum of absolute difference values for each macroblock are provided for at least a top level, providing a noise threshold value based upon the zero motion vector sum of absolute difference values from the top level of the hierarchical motion estimation, accumulating the best motion vector sum of absolute difference values for macroblocks having best motion vector sum of absolute difference values greater than the noise threshold value to provide a distortion value for the picture, and setting a repeat flag dependent upon the distortion value. An apparatus adapted to carry out the method, and a computer readable medium carrying instructions which, when executed by a computer, cause the computer to carry out the method are also provided.
摘要翻译：提供了一种在视频图像数据序列中检测重复图像的方法，所述视频图像数据的每个图像包括多个宏块，所述方法包括对视频图像数据执行分层运动估计，以为每个宏块提供最佳运动矢量，每个宏块的绝对差值的绝对差值的最佳运动矢量和和每个宏块的绝对差值的零运动矢量和，其中分层运动估计包括多个级，并且所述最佳运动矢量，绝对差的最佳运动矢量和为至少顶级提供每个宏块的绝对差值的值和零运动矢量和，基于来自分级运动估计的顶级的绝对差值的零运动矢量和提供噪声阈值，累积具有最佳的宏块的绝对差值的最佳运动矢量和绝对差值的运动矢量和大于噪声阈值以提供图像的失真值，以及根据失真值设置重复标志。一种适于执行该方法的装置，以及一种携带指令的计算机可读介质，当由计算机执行时，该计算机可读介质也使计算机执行该方法。

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