| 基于HVS彩色图像的扩展零树小波编码方法的研究 |
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| 引用本文： | 黄贤武,李家骅,郭玮玮,胡琳. 基于HVS彩色图像的扩展零树小波编码方法的研究[J]. 数据采集与处理, 2001, 16(2): 215-219 |
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| 作者姓名： | 黄贤武 李家骅 郭玮玮 胡琳 |
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| 作者单位： | 苏州大学通信与电子工程系 |
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| 摘 要： | 提出了一种基于视觉系统（HVS）特性和小波系数的扩展零树的彩色图像压缩编码方法。该算法按视觉重要性排序，产生一种嵌入式比特流。它不仅保留了EZW算法的高效、嵌入式编码的优点，而且获得了在低比特率下的彩色图像经压缩后的优良的复原图像效果。本算法同其他算法相比，在相同的压缩比条件下，恢复图像具有更好的视觉质量。
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| 关 键 词： | 彩色图像 零树小波 高频系数 视觉系统 图像压缩编码 |
| 文章编号： | 1004-9037(2001)02-0215-05 |
| 修稿时间： | 2000-08-22 |
Color Image Compression Based on HVS and Extended Zero-Tree Wavelet Transform |
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| Huang Xianwu Li Jiahua Guo Weiwei Hu Lin. Color Image Compression Based on HVS and Extended Zero-Tree Wavelet Transform[J]. Journal of Data Acquisition & Processing, 2001, 16(2): 215-219 |
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| Authors: | Huang Xianwu Li Jiahua Guo Weiwei Hu Lin |
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| Affiliation: | Huang Xianwu Li Jiahua Guo Weiwei Hu Lin Department of Communication and Electronic Engineering,Suzhou University Suzhou 215006,P.R.China |
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| Abstract: | A method of compressing color image based on human visual system(HVS) and extended zero tree wavelet rransform is introduced. The algorithm produces an embedded code flow arranged in the order of visual importance. This method not only keeps the advantage of high efficiency and embedded coding of the EZW arithmetic, but also acquires high quality reconstructed image under the condition of low bit rate compression. Compared to the results of other algorithms,the reconstructed image has good visual quality under the condition of the same compression ratio. |
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| Keywords: | color image zero tree wavelet human visual system extended zero tree low frequency coefficient high frequency coefficient |
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