n.電報(bào)密碼本

This method utilizes VQ and LBG algorithm to design the codebook. 該方法使用了向量量化技術(shù)并采用LBG算法設(shè)計(jì)碼本。

Ciphers are more convenient than codes in some situations, there being no need for a codebook. 有些情況下，“密碼”比“編碼”更方便，因?yàn)椤懊艽a”無(wú)需反復(fù)查詢密碼本。

In this theory，all codewords in codebook are rotated to four hieratical directions to check their correlations. 提出了將碼書中的碼字旋轉(zhuǎn)壓縮的理論。

One is the robustness against channel noise;the other is the computational complexity of codebook search. 第一個(gè)是增加向量量化的抗雜訊能力，另一個(gè)則是減少碼書搜尋的復(fù)雜度。

This paper proposes an efficient codebook design algorithm for image compression. 摘要提出了一種高效的矢量量化碼將設(shè)計(jì)算法。