Initial Codebook Algorithm of Vector Quantizaton

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概要

• 論文の詳細を見る

• A simple and successful design of initial codebook of vector quantization (VQ) is presented. For existing initial codebook algorithms, such as random method, the initial codebook is strongly influenced by selection of initial codewords and difficult to match with the features of the training vectors. In the proposed method, training vectors are sorted according to the norm of training vectors. Then, the ordered vectors are partitioned into N groups where N is the size of codebook. The initial codewords are obtained from calculating the centroid of each group. This initializtion method has a robust performance and can be combined with the VQ algorithm to further improve the quality of codebook.

• （社）電子情報通信学会の論文
• 2008-08-01

著者

• Zhang Tianqi

  Communication And Information Engineering College Chongqing University Of Posts And Telecommunicatio

• Zhu Weile

  Electronic Engineering College University Of Electronic Science And Technology Of China

• CHEN ShanXue

  Electronic Engineering College, University of Electronic Science and Technology of China

• LI FangWei

  Communication and Information Engineering College, ChongQing University of Posts and Telecommunicati

• Li Fangwei

  Communication And Information Engineering College Chongqing University Of Posts And Telecommunicatio

• Chen Shanxue

  Electronic Engineering College University Of Electronic Science And Technology Of China

関連論文

• Fast Searching Algorithm for Vector Quantization Based on Subvector Technique
• Initial Codebook Algorithm of Vector Quantizaton

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