| 灰度图象的快速矢量量化 |
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| 引用本文： | 程群杰,董智斌.灰度图象的快速矢量量化[J].兰州大学学报(自然科学版),1995,31(3):72-75. |
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| 作者姓名： | 程群杰 董智斌 |
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| 作者单位： | 兰州大学电子与信息科学系 |
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| 摘 要： | 本文改进了矢量量化的码书设计方法和编码的搜索过程，大大提高了矢量码书的训练效率 和编码速度，获得了满意的压缩速度和效果，通过对标准测试图象的测试，速度平均提高了２．６倍，而信噪比却下降很少。
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| 关 键 词： | 灰度图象 矢量量化 LBG算法 数字图象压缩 |
Gray Image Compression by Using Fast Vector Quantization |
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| Cheng Qunjie, Dong Zhibin, Zhang Zifan, Zhang Jiqing.Gray Image Compression by Using Fast Vector Quantization[J].Journal of Lanzhou University(Natural Science),1995,31(3):72-75. |
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| Authors: | Cheng Qunjie Dong Zhibin Zhang Zifan Zhang Jiqing |
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| Abstract: | This paper improves the efficiency of the codebook training and encoding speed by modifying the technique of codebook initializing and the search processing of encoding. Both the compression speed and reproduction quality are satisfactory. The results of experiment on standard test images show that the speed is raised by 2. 6 times while the SNR decreases slightly. |
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| Keywords: | gray image vector quantization LBG algorithm tree search |
| 本文献已被 CNKI 维普 等数据库收录！ |
