| 一种适于实时传输的子带图象编码 |
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| 引用本文： | 杨长生,宋广华,张承萃. 一种适于实时传输的子带图象编码[J]. 中国图象图形学报, 2000, 5(3): 191-195 |
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| 作者姓名： | 杨长生 宋广华 张承萃 |
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| 作者单位： | 浙江大学计算机系系统工程研究所!杭州310027 |
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| 摘 要： | 该文提出了一种能高品质重建图象的记滤波器子带编码法，这种分解法具有实时性较好，通道错误不扩散，利于传输等特点，其重建图象与传统线性子带分解法相比，不会受振铃效应的影响。与ＡＳＤ子带分解法相比，它的复杂度低，且采用了自适应压扩量化。通过与ＪＰＥＧ的比较显示，该方法在高保真压缩的情况下，其ＰＳＮＲ和视觉效果接近于ＪＰＥＧ，而在复杂度，抗通道错误鲁棒性方面则明显优于ＪＰＥＧ。
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| 关 键 词： | 压缩 图象编码 形态滤波器 子带编码 |
| 收稿时间： | 1998-10-20 |
| 修稿时间： | 2000-01-05 |
A Subband Coding Aiming at Real-Time Image Transmission |
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| YANG Chang-sheng,SONG Guang-hua and ZHANG Cheng-cui. A Subband Coding Aiming at Real-Time Image Transmission[J]. Journal of Image and Graphics, 2000, 5(3): 191-195 |
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| Authors: | YANG Chang-sheng SONG Guang-hua ZHANG Cheng-cui |
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| Affiliation: | Computer System Engineering Institute,Zhejiang University,Hangzhou 310027;Computer System Engineering Institute,Zhejiang University,Hangzhou 310027;Computer System Engineering Institute,Zhejiang University,Hangzhou 310027 |
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| Abstract: | In this paper, we suggest a new subband compression schemes based on Morphological Subband Coding(MSC). Compared with the classical QMF subband filters, it will not be affected by ring effect. In contrast to ASD method, it is simple and adopts the adaptive companding quantization. Moreover, the result images compared with JPEG show that: with perfect reconstruction quality, MSC has better properties such as low complexity and high robustness on transmission. |
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| Keywords: | Compress Image Subband Filter |
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