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Wavelet NeighShrink method for grid texture removal in image of solar radio bursts
Zhao Rui-zhen; Hu Zhan-yi
2007
发表期刊SPECTROSCOPY AND SPECTRAL ANALYSIS
卷号27期号:1页码:198-201
文章类型Article
摘要The data received from solar bursts contain a lot of noise, which makes further processing more difficult. To remove the noise and enhance the image, we studied the properties of the NeighShrink threshold function and analyzed the influence of neighborhood window size on the denoising result, on the basis of which a new wavelet NeighShrink square root method for image denoising is presented. Firstly, each channel of the solar burst image is normalized, which can, to some extent, remove the horizontal grid texture in the image. Secondly, the preprocessed image is decomposed by wavelet transform, and the obtained wavelet coefficients are thresholded by NeighShrink square root method. Finally, the denoised image is reconstructed by inverse wavelet transform. The experimental results show that the presented method is effective in noise removal and image enhancement.
关键词Wavelet Transform Neighshrink Noise Removal Image Enhancement
WOS标题词Science & Technology ; Technology
收录类别SCI
语种英语
WOS研究方向Spectroscopy
WOS类目Spectroscopy
WOS记录号WOS:000244077200052
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/9483
专题09年以前成果
作者单位1.Beijing Jiaotong Univ, Sch Comp & Informat Technol, Beijing 100044, Peoples R China
2.Chinese Acad Sci, Inst Automat, Natl Key Lab Pattern Recognit, Beijing 100080, Peoples R China
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Zhao Rui-zhen,Hu Zhan-yi. Wavelet NeighShrink method for grid texture removal in image of solar radio bursts[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2007,27(1):198-201.
APA Zhao Rui-zhen,&Hu Zhan-yi.(2007).Wavelet NeighShrink method for grid texture removal in image of solar radio bursts.SPECTROSCOPY AND SPECTRAL ANALYSIS,27(1),198-201.
MLA Zhao Rui-zhen,et al."Wavelet NeighShrink method for grid texture removal in image of solar radio bursts".SPECTROSCOPY AND SPECTRAL ANALYSIS 27.1(2007):198-201.
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