| 基于子带金字塔结构的彩色图像小波编码 |
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| 引用本文： | 魏培,全子一,门爱东.基于子带金字塔结构的彩色图像小波编码[J].电路与系统学报,2009,14(3). |
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| 作者姓名： | 魏培 全子一 门爱东 |
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| 作者单位： | 北京邮电大学,电信工程学院,北京,100876 |
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| 基金项目： | 国家自然科学基金项目 |
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| 摘 要： | 本文改进了分层树集分割算法(SPIHT),重新设计了一种子带金字塔的数据结构来组织图像的二维小波变换系数,既减少了存储空间又加快了编码速度.在彩色图像的YUV空间按位平面的顺序依次对YUV三个分量编码,输出颜色分量完全嵌入式的码流.实验结果表明改进后算法对彩色图像的编码能获得很好的率失真性能,而且适用于高分辨率、不规则图像的编解码.
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| 关 键 词： | 彩色图像编码 离散小波变换 无链表SPIHT 嵌入式 |
A wavelet method for color images coding based on subband pyramid structure |
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| WEI Pei,QUAN Zi-yi,MEN Ai-dong.A wavelet method for color images coding based on subband pyramid structure[J].Journal of Circuits and Systems,2009,14(3). |
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| Authors: | WEI Pei QUAN Zi-yi MEN Ai-dong |
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| Affiliation: | WEI Pei QUAN Zi-yi,MEN Ai-dong(Telecommunication Engineering School,Beijing University of Posts , Telecommunications,Beijing 100876,China) |
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| Abstract: | The algorithm improves the SPIHT algorithm and designs a new subband pyramid data structure to reorganize the image wavelet decomposition coefficients.It decreases the memory space and increases the coding speed.The three components in YUV space are coded in turn on bit plane sorting.So the output coded stream is fully embedded.The experimental results show that the rate-distortion performance is good.It is also suitable for high resolution or irregular image codec. |
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| Keywords: | color image coding discrete wavelet transform no list SPIHT embedding |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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