标题:Improvement and simulation analysis of threshold denoising algorithm
作者:Liu, Yanxia ;Li, Yan ;Dong, Beibei ;Cao, Yanyan ;Ma, Yanli
作者机构:[Liu, Yanxia ;Dong, Beibei ;Cao, Yanyan ;Ma, Yanli ] College of Information Science and Engineering, Hebei North University, Hebei, China;[Li, Yan ] D 更多
会议名称:2012 2nd International Conference on Machinery Electronics and Control Engineering, ICMECE 2012
会议日期:December 29, 2012 - December 30, 2012
来源:Applied Mechanics and Materials
出版年:2013
卷:313-314
页码:1060-1063
DOI:10.4028/www.scientific.net/AMM.313-314.1060
摘要:According to the characteristics of image wavelet decomposition and statistical characteristics of high frequency wavelet coefficients after wavelet decomposition, this article improves the traditional threshold function de-noising algorithm. Improved threshold function not only overcomes wavelet coefficient discontinuity caused by hard threshold function de-noising and certain deviation witch always exists between wavelet coefficients caused by soft threshold function de-noising and its real value. The experimental results show that, the improved threshold function de-noising results are better than traditional soft and hard threshold method either in the visual effects, or the PSNR gain. © (2013) Trans Tech Publications, Switzerland.
收录类别:EI
资源类型:会议论文
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