【作者】 冯登超； 乔晓军； 何英华； 文俊峰； 田宏武；

【Author】 Feng Dengchao1,2, Qiao Xiaojun1, He Yinghua1,2, Wen Junfeng1, Tian HongWu1 (1. National Engineering Research Center for Information Technology in Agriculture,Beijing,10008; 2. Tianjin University,.Tianjin ,300072)

【机构】 国家农业信息化工程技术研究中心；

【摘要】 提出了一种利用小波变换中的多分辨分析法对加性高斯白噪声的滤除方法。阐述了多分辨分析去噪理论及其算法实现。同时,对去噪过程中小波基的选取进行了分析,对阈值的优化选择进行了探讨。仿真实验表明,该方法比传统的空域滤波方法在处理加性高斯白噪声污染的图象效果较好。更多还原

【Abstract】 This paper presented a new AWGN filtering method using the multi-resolution method of wavelet analysis. The principle and algorithm realization of multi-resolution de-noising were explained. Moreover, the selection of wavelet basis and the optimization of threshold were discussed. The simulation results show that this method is better than traditional space-domain filtering method when processing images destroyed by AWGN.更多还原