| 图像编码的多分辨率分类矢量量化算法 |
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| 引用本文： | 胡春玲 马常楼. 图像编码的多分辨率分类矢量量化算法[J]. 电子学报, 1999, 27(1): 27-30 |
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| 作者姓名： | 胡春玲 马常楼 |
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| 作者单位： | [1]中国科学院计算机语言信息工程研究中心 [2]北京西三环中路19号33所 |
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| 摘 要： | 本文结合小波多级变换后不同方向，不同尺度的系数要关性，提出了一种多分辨率的分类矢量量化方案，对由不同分辨率水平、不同方向的小波系数组成的矢量块分类量化编码，并设计了相应的性能良好的分类器，给出不同条件下的实验结果和数据，从而证明了该编码方案不但提高了图像的质量，同时计算复杂度也有一定的降低。
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| 关 键 词： | 小波变换 多分辨率 分类矢量量化 方差 图像编码 |
An Algorithm of Multiresolutional Classified Vector Quantization for Image Coding |
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| Hu ChunLing. An Algorithm of Multiresolutional Classified Vector Quantization for Image Coding[J]. Acta Electronica Sinica, 1999, 27(1): 27-30 |
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| Authors: | Hu ChunLing |
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| Abstract: | This paper suggests an algorithm of multiresolutional Classified Vector Quantization for Image Coding,in according to the correlation among the various scales and different orientation bands after wavelet transformation.This algorithm rearranges the coefficients from various resolution level and orientation and gets a vector of 64 dimensions which then is classified and quantized.Meantime,we design an efficient classifier,and give the experiment results and data under different conditions.Compaered with other methods,it proved that the algorithm not only improves the image quality,but also decreases the computation complexity. |
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| Keywords: | Wavelet transformation Multiresolution Classified vector quantization Bits distribution Variance |
| 本文献已被 CNKI 维普 等数据库收录！ |
