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1. 发明授权

US09380309B2 Motion analysis method and code stream conversion method based on video compression code stream and apparatus thereof 有权
标题翻译：基于视频压缩码流的运动分析方法和码流转换方法及其装置
公开(公告)号：US09380309B2
公开(公告)日：2016-06-28
申请号：US14358897
申请日：2011-12-19
申请人： Chongji Huang , Hai Yu , Hui Su , Yonghua Jia
发明人： Chongji Huang , Hai Yu , Hui Su , Yonghua Jia
IPC分类号： H04N19/139 , H04N19/124 , H04N19/176 , H04N19/20 , H04N19/48 , G06T7/20 , H04N19/51 , H04N19/40 , H04N19/132 , H04N19/137 , H04N19/177 , H04N19/174
CPC分类号： H04N19/139 , G06T7/215 , G06T7/246 , G06T2207/10016 , G06T2207/20021 , H04N19/124 , H04N19/132 , H04N19/137 , H04N19/174 , H04N19/176 , H04N19/177 , H04N19/20 , H04N19/40 , H04N19/48 , H04N19/51
摘要： The present invention relates to security video monitoring for and discloses a motion analysis method and a code stream conversion method based on video compression code stream and apparatus thereof. In the invention, a total number of bits or a residual bit number of a macro block in a video I frame is extracted from the video compression code stream; weighted average is performed to the total number of bits or a residual bit number of the macro block whose position corresponds with the current macro block in the latest M frames and a background value is obtained through calculating; a difference value between the total number of bits or the residual bit number of the current macro block and the background value is calculated, and if the difference value is greater than a predetermined first threshold, then a moving object is determined to be detected. Weighted average background modeling is performed to macro block information, such as the total numbers of bits or the residual bit number of the macro block corresponds with the current macro block in latest M frames. Threshold determination is performed to a background difference value matching result and motion analysis is performed. Coding picture of the macro block between the frames does not need to be calculated. Calculated quantity is small and the adaptability to the code stream and a scene is strong.
摘要翻译：本发明涉及一种基于视频压缩码流的运动分析方法和码流转换方法的安全视频监控及其装置。在本发明中，从视频压缩码流中提取视频I帧中的宏块的总数或残留比特数; 对最新M帧中的位置与当前宏块对应的宏块的总位数或剩余位数进行加权平均，并通过计算获得背景值; 计算当前宏块的总位数或残留位数与背景值之间的差值，如果差值大于预定的第一阈值，则确定检测到移动对象。对宏块信息执行加权平均后台建模，例如宏块的总位数或残留位数与最新M帧中的当前宏块相对应。对背景差值匹配结果执行阈值确定，并执行运动分析。帧之间的宏块的编码图像不需要计算。计算量小，对码流和场景的适应性强。

2. 发明申请

US20150163493A1 Motion Analysis Method and Code Stream Conversion Method Based on Video Compression Code Stream and Apparatus Thereof 有权
标题翻译：基于视频压缩码流的运动分析方法和码流转换方法及其设备
公开(公告)号：US20150163493A1
公开(公告)日：2015-06-11
申请号：US14358897
申请日：2011-12-19
申请人： Chongji Huang , Hai Yu , Hui Su , Yonghua Jia
发明人： Chongji Huang , Hai Yu , Hui Su , Yonghua Jia
IPC分类号： H04N19/139 , H04N19/124 , H04N19/176 , H04N19/20
CPC分类号： H04N19/139 , G06T7/215 , G06T7/246 , G06T2207/10016 , G06T2207/20021 , H04N19/124 , H04N19/132 , H04N19/137 , H04N19/174 , H04N19/176 , H04N19/177 , H04N19/20 , H04N19/40 , H04N19/48 , H04N19/51
摘要： The present invention relates to security video monitoring for and discloses a motion analysis method and a code stream conversion method based on video compression code stream and apparatus thereof. In the invention, a total number of bits or a residual bit number of a macro block in a video I frame s extracted from the video compression code stream; weighted average is performed to the total number of bits or a residual bit number of the macro block whose position corresponds with the current macro block in the latest M frames and a background value is obtained through calculating; a difference value between the total number of bits or the residual bit number of the current macro block and the background value is calculated, and if the difference value is greater than a predetermined first threshold, then a moving object is determined to be detected. Weighted average background modeling is performed to macro block information, such as the total numbers of bits or the residual bit number of the macro block corresponds with the current macro block in latest M frames. Threshold determination is performed to a background difference value matching result and motion analysis is performed. Coding picture of the macro block between the frames does not need to be calculated. Calculated quantity is small and the adaptability to the code stream and a scene is strong.
摘要翻译：本发明涉及一种基于视频压缩码流的运动分析方法和码流转换方法的安全视频监控及其装置。在本发明中，从视频压缩码流提取的视频I帧s中的宏块的总数或残留比特数; 对最新M帧中的位置与当前宏块对应的宏块的总位数或剩余位数进行加权平均，并通过计算获得背景值; 计算当前宏块的总位数或残留位数与背景值之间的差值，如果差值大于预定的第一阈值，则确定检测到移动对象。对宏块信息执行加权平均后台建模，例如宏块的总位数或残留位数与最新M帧中的当前宏块相对应。对背景差值匹配结果执行阈值确定，并执行运动分析。帧之间的宏块的编码图像不需要计算。计算量小，对码流和场景的适应性强。

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