圖象自適應(yīng)對稱余弦變換編碼方法
ADAPTIVE SYMMETRIC COSINE TRANSFORM CODING OF IMAGE
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摘要: 本文提出一種自適應(yīng)的圖象變換編碼方法。這一方法把二維對稱余弦變換應(yīng)用于圖象分塊處理,并且通過估計和傳送圖象子塊的統(tǒng)計參量來得到自適應(yīng)的變換系數(shù)量化比特分配陣。本文還給出了這一方法的分析與模擬結(jié)果。
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關(guān)鍵詞:
Abstract: An adaptive transform coding method of image is presented, in which an image is devided into a number of image sub-blocks and two-dimensional symmetrie cosine transform is performed. And the bit-allocation map for adaptive quantization of transform coeffieients is obtained through estimation and transmission of some parameters of the sub-blocks. In the paper analytical and simulated experimental results of the method are given. -
A. K. Jain, Proc. of IEEE, 69(1981), 349.[3]H. Kitajima, IEEE Trans. on C, C-29(1980), 317.[4]J. Max, IEEE Trans. on IT, IT-22(1976), 162.[5]T. T. Y. Huang et al., IEEE Trans. on CS, CS-11.(1963), 289.[6]A. Segall et al., IEEE Trans. on IT, IT-22(1976), 162. -
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