| 基于提升小波分解曲波变换的雷达影像消噪法 |
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| 引用本文： | 田养军,薛春纪.基于提升小波分解曲波变换的雷达影像消噪法[J].延边大学理工学报,2008,0(3):326-330. |
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| 作者姓名： | 田养军 薛春纪 |
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| 作者单位： | 1.长安大学地球科学与资源学院,陕西西安710054;2.中国地质大学地质工程与矿产资源图像重点实验室,北京100083 |
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| 摘 要： | 利用提升法对传统小波进行提升,将提升小波对雷达影像进行分解,形成子带影像,再将子带影像进行脊
波变换,并对变换结果进行消噪处理,然后进行脊波逆变换和提升小波重构,得到新的雷达影像。试验结果表
明:基于提升小波分解的曲波变换比传统小波分解的曲波变换对雷达影像消噪效果好,同时与传统的均值滤波
相比效果更好。
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| 关 键 词： | 曲波变换 提升小波 消噪 雷达影像 |
Radar Image De-noise Method Based on Lifting Curvelet
Transformation of Wavelet Decomposition |
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| TIAN Yang-jun,XUE Chun-ji.Radar Image De-noise Method Based on Lifting Curvelet
Transformation of Wavelet Decomposition[J].Journal of Yanbian University (Natural Science),2008,0(3):326-330. |
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| Authors: | TIAN Yang-jun XUE Chun-ji |
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| Affiliation: | 1. School o f Earth Sciences and Resources, Changan University, Xian 710054, Shaanxi, China; 2. Key Laboratory o f
Mining Resources Remote Sensing Image and Geological Engineering, China University o f Geosciences, Beijing 100083, China) |
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| Abstract: | A new de-noises way is provided. Traditional wavelet is promoted by lifting scheme, lifting wavelet is
used to decompose radar image into sub-band images, and then sub-band images are transformed by ridgelet to
new sub-band images. Then, new-band images are de-noised and reconstructed by ridgelet and lifting wavelet to
new image. Experimental results demonstrate that curvelet transformation algorithm based on lifting wavelet
decomposition has a better efficiency than the curvelet transform algorithm of traditional wavelets decomposition
in radar image de-noising. Algorithm of lifting wavelet decomposition is better than traditional average value filter
in radar image de-noising. |
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| Keywords: | curvelet transformation lifting wavelet de-noise radar image |
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