计算机应用与软件2016，Vol.33Issue(8)：88-90,98,4.DOI:10.3969/j.issn.1000-386x.2016.08.019
三次样条插值在小波去噪中的应用
APPLICATION OF CUBIC SPLINE INTERPOLATION IN WAVELET DENOISING
摘要
Abstract
To overcome the drawback of traditional wavelet threshold function in denoising,combining with cubic spline interpolation we proposed a new threshold function.The function has good smoothness,it overcomes the Gibbs effect caused by the discontinuity of hard threshold function while solves the constant deviation problem caused by soft threshold function as well.And the function can adaptively change its coefficients to achieve best denoising effect according to the size of image noise variance.Finally,it uses artificial bee colony algorithm to construct a new threshold for denoising.Experimental results showed that this denoising method,in either subjective feelings or objective evaluation,is better than soft threshold and hard threshold denoising effect.And compared with other improved wavelet denoising method,this algorithm also has a good effect.关键词
小波变换/三次样条插值/阈值函数/人工蜂群算法(ABC)Key words
Wavelet transform/Cubic spline interpolation/Threshold function/Artificial bee colony algorithm(ABC)分类
信息技术与安全科学引用本文复制引用
张涛,张欣..三次样条插值在小波去噪中的应用[J].计算机应用与软件,2016,33(8):88-90,98,4.基金项目
国家自然科学基金项目（11204046）；贵州省科技厅工业攻关项目（黔科合 GY 字［2010］3056）；贵州大学研究生创新基金项目（研理工2014007）。 （）
