| 球坐标系下的小波图像去噪方法 |
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| 引用本文： | 龚昌来.球坐标系下的小波图像去噪方法[J].河海大学常州分校学报,2005,19(2):5-8. |
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| 作者姓名： | 龚昌来 |
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| 作者单位： | 嘉应学院,电子信息工程系,广东,梅州,514015 |
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| 摘 要： | 介绍一种新的小波图像去噪方法，该方法首先将图像二维小波分解后的3个高频分量进行球坐标变换，然后对其径向分量r进行收缩去噪处理，与传统的直接收缩去噪法相比具有算法简单、工作量少等特点．仿真结果表明，该方法去噪效果良好．
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| 关 键 词： | 小波变换 球坐标变换 小波收缩 |
| 文章编号： | 1009-1130(2005)02-0005-03 |
| 修稿时间： | 2004年10月11 |
Method of Image Denoising Based on Wavelet Transform in Spherical Coordinates |
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| GONG Chang-lai.Method of Image Denoising Based on Wavelet Transform in Spherical Coordinates[J].Journal of Hohai University Changzhou,2005,19(2):5-8. |
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| Authors: | GONG Chang-lai |
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| Abstract: | This paper introduces a new image denoising method based on wavelet transform. In this method three high-frequency components from the image 2-D wavelet decomposition are transformed into spherical coordinates. The wavelet shrinkage of its radial component is further applied to image denoising. This method provides simpler algorithms with less work and simulation process shows good denoising effect. |
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| Keywords: | wavelet transform spherical coordinates transform wavelet shrinkage |
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