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公开(公告)号：US20090041119A1
公开(公告)日：2009-02-12
申请号：US12085329
申请日：2006-10-24
IPC分类号： H04N7/26
CPC分类号： H04N19/107 , H04N19/137 , H04N19/14 , H04N19/149 , H04N19/176 , H04N19/186 , H04N19/196 , H04N19/46 , H04N19/463 , H04N19/61
摘要： The method comprises a coding of a source block according to a coding mode wherein the selection of the coding mode is carried out, for a source block, according to coding error estimations and source block coding cost estimations for the different coding modes tested, the coding error being estimated, for a coding mode, according to the sum of the absolute values of coefficients obtained after a mathematical transformation in the frequency domain of the residue block related to this coding mode and as a function of the sum of absolute values of quantized coefficients corresponding to this coding mode. An application is the decision of the coding mode for data using the MPEG 2 or MPEG4-AVC standard.
摘要翻译： 该方法包括根据编码模式对源块的编码，其中针对源块执行编码模式的选择，根据所测试的不同编码模式的编码误差估计和源块编码成本估计，编码 对于编码模式，根据在与该编码模式相关的残差块的频域中的数学变换之后获得的系数的绝对值的和作为量化系数的绝对值之和的函数的估计误差 对应于该编码模式。 应用是使用MPEG2或MPEG4-AVC标准的数据的编码模式的决定。
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2.发明授权Method for locally adjusting a quantization step and coding device implementing said method 有权用于本地调整量化步骤的方法和实现所述方法的编码装置公开(公告)号：US08139882B2
公开(公告)日：2012-03-20
申请号：US11887860
申请日：2006-03-16
IPC分类号： G06K9/00
CPC分类号： H04N19/192 , H04N19/124 , H04N19/152 , H04N19/154 , H04N19/17 , H04N19/179 , H04N19/60
摘要： The invention relates to a method of locally adjusting a quantization step for each region of an image in a sequence of n images. The method comprises the following steps; calculating, for each image of the sequence, a first difference of bits saved on the potential masking region when quantizing it with a first quantization step and a second difference of bits required by the region of interest when quantizing it with a second quantization step; and in each image of the sequence, assigning to the potential masking region the first quantization step and if the sum of the n first differences of bits is higher than the sum of the n second differences of bits assigning said second quantization step to said region of interest and otherwise assigning a third quantization step such that the sum of said n first differences of bits is distributed between the regions of interest according to a reconstruction quality criterion.
摘要翻译： 本发明涉及一种对n个图像序列中的图像的每个区域进行局部调整量化步长的方法。 该方法包括以下步骤： 对于所述序列的每个图像，对用所述第一量化步长进行量化时的所述潜在屏蔽区域上保存的位的第一差值和当用第二量化步长进行量化时所述感兴趣区域所需的位的第二差值; 并且在所述序列的每个图像中，将所述第一量化步长分配给所述潜在屏蔽区域，并且如果所述n个第一差分比特的和高于将所述第二量化步长分配给所述第二量化步长的所述第n个第二差分的总和 兴趣，否则分配第三量化步骤，使得根据重构质量标准，将所述n个第一差分位的和分配在感兴趣区域之间。
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3.发明授权Method for locally adjusting a quantization step and coding device implementing said method 有权用于本地调整量化步骤的方法和实现所述方法的编码装置公开(公告)号：US08139881B2
公开(公告)日：2012-03-20
申请号：US11887714
申请日：2006-03-16
IPC分类号： G06K9/00
CPC分类号： H04N19/192 , H04N19/124 , H04N19/154 , H04N19/17 , H04N19/179 , H04N19/60
摘要： The invention relates to a method of locally adjusting a quantization step for each region of an image with respect to a setpoint quantization step. The method comprises the steps of: assigning, to said region of interest, a first quantization step, lower than or equal to said setpoint quantization step; determining a second quantization step higher than or equal to said setpoint quantization step and lower than or equal to a third quantization step such that the number of bits required by the region of interest is lower than the number of bits saved on the potential masking region; and assigning, when such a second quantization step exists, said second quantization step to said potential masking region, otherwise assigning said third quantization step to said potential masking region.
摘要翻译： 本发明涉及一种相对于设定点量化步骤对图像的每个区域进行局部调整量化步长的方法。 该方法包括以下步骤：向所述感兴趣区域分配低于或等于所述设定点量化步长的第一量化步长; 确定高于或等于所述设定点量化步长并低于或等于第三量化步长的第二量化步骤，使得所述感兴趣区域所需的位数低于保存在所述电位屏蔽区域上的位数; 以及当存在所述第二量化步骤时，将所述第二量化步骤分配给所述电位屏蔽区域，否则将所述第三量化步长分配给所述电位屏蔽区域。
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4.发明申请Method for Locally Adjusting a Quantization Step and Coding Device Implementing Said Method 有权本地调整量化步骤的方法和实现所述方法的编码装置公开(公告)号：US20090169125A1
公开(公告)日：2009-07-02
申请号：US11887860
申请日：2006-03-16
IPC分类号： G06K9/00
CPC分类号： H04N19/192 , H04N19/124 , H04N19/152 , H04N19/154 , H04N19/17 , H04N19/179 , H04N19/60
摘要： The invention relates to a method of locally adjusting a quantization step for each region of an image in a sequence of n images. The method comprises the following steps: calculating, for each image of the sequence, a first difference of bits saved on the potential masking region when quantizing it with a first quantization step and a second difference of bits required by the region of interest when quantizing it with a second quantization step; and in each image of the sequence, assigning to the potential masking region the first quantization step and if the sum of the n first differences of bits is higher than the sum of the n second differences of bits, assigning said second quantization step to said region of interest and otherwise assigning a third quantization step such that the sum of said n first differences of bits is distributed between the regions of interest according to a reconstruction quality criterion.
摘要翻译： 本发明涉及一种对n个图像序列中的图像的每个区域进行局部调整量化步长的方法。 该方法包括以下步骤：对于该序列的每个图像，当量化它时，以第一量化步长和感兴趣区域所需的位的第二差值，计算保存在潜在屏蔽区域上的位的第一差值， 用第二量化步骤; 并且在所述序列的每个图像中，将所述第一量化步骤分配给所述潜在掩蔽区域，并且如果所述n个第一差分比特的和高于所述n个第二差分比特的和，则将所述第二量化步长分配给所述区域 并且否则分配第三量化步骤，使得根据重构质量标准，所述n个第一差分的和被分布在感兴趣区域之间。
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5.发明授权Method and device for coding a video image with a coding error estimation algorithm 有权用编码误差估计算法编码视频图像的方法和装置公开(公告)号：US08705618B2
公开(公告)日：2014-04-22
申请号：US12085329
申请日：2006-10-24
IPC分类号： H04N7/26
CPC分类号： H04N19/107 , H04N19/137 , H04N19/14 , H04N19/149 , H04N19/176 , H04N19/186 , H04N19/196 , H04N19/46 , H04N19/463 , H04N19/61
摘要： The method comprises a coding of a source block according to a coding mode wherein the selection of the coding mode is carried out, for a source block, according to coding error estimations and source block coding cost estimations for the different coding modes tested, the coding error being estimated, for a coding mode, according to the sum of the absolute values of coefficients obtained after a mathematical transformation in the frequency domain of the residue block related to this coding mode and as a function of the sum of absolute values of quantized coefficients corresponding to this coding mode. An application is the decision of the coding mode for data using the MPEG 2 or MPEG4-AVC standard.
摘要翻译： 该方法包括根据编码模式对源块的编码，其中针对源块执行编码模式的选择，根据所测试的不同编码模式的编码误差估计和源块编码成本估计，编码 对于编码模式，根据在与该编码模式相关的残差块的频域中的数学变换之后获得的系数的绝对值的和作为量化系数的绝对值之和的函数的估计误差 对应于该编码模式。 应用是使用MPEG2或MPEG4-AVC标准的数据的编码模式的决定。
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6.发明申请Method for Locally Adjusting a Quantization Step and Coding Device Implementing Said Method 有权本地调整量化步骤的方法和实现所述方法的编码装置公开(公告)号：US20090122862A1
公开(公告)日：2009-05-14
申请号：US11887714
申请日：2006-03-16
IPC分类号： H04N7/12
CPC分类号： H04N19/192 , H04N19/124 , H04N19/154 , H04N19/17 , H04N19/179 , H04N19/60
摘要： The invention relates to a method of locally adjusting a quantization step for each region of an image with respect to a setpoint quantization step. The method comprises the steps of: assigning, to said region of interest, a first quantization step, lower than or equal to said setpoint quantization step; determining a second quantization step higher than or equal to said setpoint quantization step and lower than or equal to a third quantization step such that the number of bits required by the region of interest is lower than the number of bits saved on the potential masking region; and assigning, when such a second quantization step exists, said second quantization step to said potential masking region, otherwise assigning said third quantization step to said potential masking region.
摘要翻译： 本发明涉及一种相对于设定点量化步骤对图像的每个区域进行局部调整量化步长的方法。 该方法包括以下步骤：向所述感兴趣区域分配低于或等于所述设定点量化步长的第一量化步长; 确定高于或等于所述设定点量化步长并低于或等于第三量化步长的第二量化步骤，使得所述感兴趣区域所需的位数低于保存在所述电位屏蔽区域上的位数; 以及当存在所述第二量化步骤时，将所述第二量化步骤分配给所述电位屏蔽区域，否则将所述第三量化步长分配给所述电位屏蔽区域。
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