| 真正三维小波变换技术及在视频图像编码中的应用 |
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| 引用本文： | 罗一平.真正三维小波变换技术及在视频图像编码中的应用[J].光电工程,2002,29(2):55-58. |
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| 作者姓名： | 罗一平 |
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| 作者单位： | 浙江工程学院信息电子学院,浙江,杭州,310033 |
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| 摘 要： | 把图像信号当作真正三维信号处理，导出三维空间正交小波基形式。用三维S.Mallat算法来实现三维信号的小波变换，并将其应用在视频图像的编码中。结果表明，低频3－D子带包含有大部分信息，代表图像序列的上下文信息；量化矩阵取值可以调整变化，压缩比最大可达160。因此这种编码方法的性能是十分优越的。
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| 关 键 词： | 三维小波变换技术 小波变换 图像编码 视频图像 |
| 文章编号： | 1003-501X(2002)02-0055-04 |
| 收稿时间： | 2001/5/23 |
| 修稿时间： | 2001年5月23日 |
A True Three-Dimension Wavelet Transform Techniqueand Its Application in Video Image Coding |
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| LUO Yi-ping.A True Three-Dimension Wavelet Transform Techniqueand Its Application in Video Image Coding[J].Opto-Electronic Engineering,2002,29(2):55-58. |
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| Authors: | LUO Yi-ping |
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| Abstract: | The orthogonal wavelet-based form of 3-D space is derived through processing image signal as true 3-D signal. The wavelet transform for 3-D signal is implemented with S.Mallat algorithm and it is applied to coding of video image. The results show that low frequency 3-D sub-band consists of most of the information and represents the context information for image sequence. The value of the quantized matrix can be adjusted and the maximal compression ratio can be as high as 160. The performance of the coding method is good. |
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| Keywords: | Wavelet transform Image coding Viedeo image |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
