发明名称 Method for picture sharpening in a digital transform coder
摘要 The invention relates to a method for processing a data signal which is transformed into an n-dimensional matrix form and which is to be processed by an n-dimensional quantizing matrix. In the invention the n-dimensional quantizing matrix is processed by an n-dimensional transfer function matrix before processing the data signal. In order to form the transfer function matrix at least one transfer function is selected, and it is given a fixed point in the n-dimensional transfer matrix. At least a part of the elements of the transfer function matrix are processed by at least one transfer function, so that elements at a predetermined distance from the fixed point are processed by a processing quantity dependent on the transfer function. <IMAGE>
申请公布号 EP0725546(A3) 申请公布日期 1999.10.13
申请号 EP19960100626 申请日期 1996.01.18
申请人 NOKIA TECHNOLOGY GMBH 发明人 VEHVILAEINEN, MARKKU
分类号 G06T5/20;H04N7/26;H04N7/30;(IPC1-7):H04N7/30;H04N7/50 主分类号 G06T5/20
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