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1.发明授权Method and device for coding an image signal with redundancy reduction with locally uniform distortion 失效用于具有局部均匀失真的冗余减少图像信号编码的方法和装置
公开(公告)号：EP0100916B1
公开(公告)日：1988-10-12
申请号：EP83106970.3
申请日：1983-07-15
IPC分类号： H04N7/133
CPC分类号： H04N19/192 , H04N19/13 , H04N19/146 , H04N19/147 , H04N19/152 , H04N19/154 , H04N19/176 , H04N19/184 , H04N19/60 , H04N19/91
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2.发明公开Method and device for coding an image signal with redundancy reduction with locally uniform distortion 失效用局部均匀失真对具有冗余减少的图像信号进行编码的方法和装置
公开(公告)号：EP0100916A3
公开(公告)日：1985-11-06
申请号：EP83106970
申请日：1983-07-15
IPC分类号： H04N07/13
CPC分类号： H04N19/192 , H04N19/13 , H04N19/146 , H04N19/147 , H04N19/152 , H04N19/154 , H04N19/176 , H04N19/184 , H04N19/60 , H04N19/91
摘要： Method of image signal coding, the image being subdivided into blocks to be coded in sequence; first a two-dimensional linear transformation is applied to each of said blocks, obtaining a set of transformation coefficients Cij. The coding is carried out iteratively by coding at each iteration one of the coefficients of the block with an additional bit as compared to the preceding iteration, and evaluating at each iteration the global error value made if the image block is reconstructed starting from the total number of bits till now given to the block. The iterations relating to a block start from the coding of all its coefficients with zero bits and terminate when said global error becomes lower than a pre- determined threshold error. A device is also described to implement the method (Figure 1).
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3.发明公开Method and device for coding an image signal with redundancy reduction with locally uniform distortion 失效为局部有均匀的失真编码具有冗余减少的图像信号的方法和装置。
公开(公告)号：EP0100916A2
公开(公告)日：1984-02-22
申请号：EP83106970.3
申请日：1983-07-15
IPC分类号： H04N7/133
CPC分类号： H04N19/192 , H04N19/13 , H04N19/146 , H04N19/147 , H04N19/152 , H04N19/154 , H04N19/176 , H04N19/184 , H04N19/60 , H04N19/91
摘要： Method of image signal coding, the image being subdivided into blocks to be coded in sequence; first a two-dimensional linear transformation is applied to each of said blocks, obtaining a set of transformation coefficients Cij. The coding is carried out iteratively by coding at each iteration one of the coefficients of the block with an additional bit as compared to the preceding iteration, and evaluating at each iteration the global error value made if the image block is reconstructed starting from the total number of bits till now given to the block. The iterations relating to a block start from the coding of all its coefficients with zero bits and terminate when said global error becomes lower than a pre- determined threshold error. A device is also described to implement the method (Figure 1).
摘要翻译： 图像信号编码的方法，所述图像是细分成块序列中要被编码; 第一二维线性变换被应用到每个所述块，获得一组变换系数Cij的的。 编码被反复通过在每次迭代与附加比特的块的系数中的一个编码作为相比于preceding-迭代，并且在每次迭代进行的全局误差值评价如果图像块被重构从该总数开始开展 比特至今给该块。 迭代与一个blockStart从其所有系数的编码用零个比特和终止，当所述全局误差变得低于预定阈值误差较低。 因此，一个装置被描述以实现该方法。
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