中国科学院昆明物理研究所
纸质出版:1985
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[1]王中德,许生龙.第Ⅰ种离散cosine变换的残余相关[J].电子学报,1985(06):80-83.
Wang Zhong-de, Xu Sheng-long. The Residual Correlation of the Version I of the Discrete cosine Transform[J]. Acta Electronica Sinica, 1985, (6): 80-83.
给出了第Ⅰ种离散cosine变换(DCT-Ⅰ)的残余相关表达式。它和第Ⅱ种散离cosine变换(DCT-Ⅱ)及第Ⅰ种离散sine变换(DST-Ⅰ)残余相关的比较表明
在相关系数ρ取中等值时
DCT-Ⅰ的残余相关最小。
The residual correlation of the version I of the discrete cosine transform (DCT-I) is given. It is compared with the residual correlations of the version I of the discrete cosine transform (DCT-I) and of the version I of the discrete sine transform (DST-I). Results show that the residual correlation of the DCT-I is the smallest one if the correlation coefficient ρ is mediate.
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