Image encoding system
专利汇可以提供Image encoding system专利检索，专利查询，专利分析的服务。并且PURPOSE: To improve the efficiency of encoding by calculating two-dimensional autocorrelation matrixes of two-dimensional image blocks prior to conversion, comparing them with the pattern of an autocorrelation matrix which is generated previously, and selecting and converting such an autocorrelation matrix that the sum of squares of errors of respective components is least.
CONSTITUTION: An image signal is inputted to an input terminal 101 and made into blocks of data X(i, j) by a two-dimensional block dividing circuit 102, and an arithmetic part 103 calculates autocorrelation matrixes. Then the autocorrelation matrixes found by the arithmetic part 103 and representative autocorrelation matrixes KRp and KCg each consisting of n
2 components which are obtained previously are compared with each other. Then sum of the squares of their differences is found to select representative autocorrelation matrixes DRpR' and KCqC which have the least sum. Those are used to perform selected conversion for image blocks, thereby improving the encoding efficiency greatly on the whole even when index information is added.
COPYRIGHT: (C)1988,JPO&Japio，下面是Image encoding system专利的具体信息内容。
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