| 一种新的图像自适应阈值去噪方法 |
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| 引用本文： | 何国栋,丁绪星,秦慧平,等.一种新的图像自适应阈值去噪方法[J].无线电通信技术,2014(2):60-62. |
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| 作者姓名： | 何国栋 丁绪星 秦慧平 等 |
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| 作者单位： | 安徽师范大学物理与电子信息学院,安徽芜湖241000 |
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| 基金项目： | 安徽省高校省级自然科学基金项目 （KJ2011Z138）;安徽师范大学校青年基金项目（2009xqn64） |
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| 摘 要： | 针对小波变换缺乏平移不变性产生的伪吉布斯现象(Gibbs-like phenomena)和Donoho阈值去噪方法阈值单一的缺陷,提出了基于Cycle Spinning的图像自适应阈值去噪方法,Cycle Spinning能抑制伪吉布斯现象,并且给出了阈值自适应因子,阈值能根据不同高频子带自适应改变。实验显示,该方法提高了去噪图像峰值信噪比(PSNR),降低了均方误差(MSE),去噪图像清晰,获得较好的视觉效果。
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| 关 键 词： | 小波变换 Cycle Spinning 图像去噪 自适应阈值 |
A New Adaptive Threshold Method for Image Denoising Using Cycle Spinning |
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| HE Guo-dong,DING Xu-xing,QIN Hui-ping,XIE Xiao-juan,FENG You-hong.A New Adaptive Threshold Method for Image Denoising Using Cycle Spinning[J].Radio Communications Technology,2014(2):60-62. |
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| Authors: | HE Guo-dong DING Xu-xing QIN Hui-ping XIE Xiao-juan FENG You-hong |
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| Affiliation: | ( The College of Physics and Electronic Information, Anhui Normal University, Wuhu Anhui 241000, China) |
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| Abstract: | A new adaptive threshold method for image denoising using Cycle Spinning was proposed to overcome the limitation of Donoho threshold denoising method and Gibbs-like phenomena due to lack of translation invarianee of wavelet translation.Cycle Spinning can reduce the Gibbs-like phenomena.An adaptive factor was defined so that the threshold can vary according to different sub-bands. Experiments show that the new method can improve the PSNR （ peak signal to noise ratio） and reduce the MSE （ mean square error） , and get clear denoised image. |
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| Keywords: | wavelet transform cycle spinning image denoising adaptive threshold |
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