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| 矢量量化有效排查快速编码算法 | |
| 引用本文： | 陈善学,李方伟,朱维乐.矢量量化有效排查快速编码算法[J].信息技术,2007,31(1):54-57. |
| 作者姓名： | 陈善学 李方伟 朱维乐 |
| 作者单位： | 1. 重庆邮电大学,重庆,400065;电子科技大学,成都,610054 2. 重庆邮电大学,重庆,400065 3. 电子科技大学,成都,610054 |
| 摘 要： | 研究了一种基于均方误差（MSE）测度的矢量量化快速编码算法,算法利用小波变换的特点合理地构造矢量。结合非线性插补矢量量化技术、矢量和值差法和部分失真排除法,在搜索编码过程中,有效排除部分候选码字。实验结果表明,相对于穷尽搜索方法,计算量有明显降低,计算时间减少显著。 |
| 关 键 词： | 快速编码 均方误差 小波变换 矢量量化 |
| 文章编号： | 1009-2552（2007）01-0054-04 |
| 修稿时间： | 2006-09-11 |
Fast encoding algorithm for vector quantization based on an efficient kick-out condition |
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| CHEN Shan-xue,LI Fang-wei,ZHU Wei-le.Fast encoding algorithm for vector quantization based on an efficient kick-out condition[J].Information Technology,2007,31(1):54-57. | |
| Authors: | CHEN Shan-xue LI Fang-wei ZHU Wei-le |
| Affiliation: | 1. Chongqing University of Posts and Telecomnmnicafions, Chongqing 400065, China; 2,University of Electronic Science and Technology of China, Chengdu 610054,China |
| Abstract: | A fast encoding algorithm based on the mean square error(MSE) distance for vector quantization is introduced.Using the wavelet transforms peculiarity,the vectors can be effectively constructed.During the search process for code,a lot of codewords can be rejected by utilizing the non-linear interpolated vector quantization(NLIVQ) technique,the partial distortion search technique and the method of two vectors diffe-(rence's) sum.The experimental results show that the reduction of computation is outstanding in the encoding time and complexity against full search method. |
| Keywords: | fast encoding mean square error(MSE) wavelet transform vector quantization(VQ) |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |