| 基于改进遗传算法的小波去噪的阈值优化 |
| |
| 引用本文： | 王志明,伍朝华. 基于改进遗传算法的小波去噪的阈值优化[J]. 计算机工程与设计, 2008, 29(9): 2381-2383 |
| |
| 作者姓名： | 王志明 伍朝华 |
| |
| 作者单位： | 湖南农业大学,理学院,湖南,长沙,410128 |
| |
| 基金项目： | 湖南农业大学校科研和教改项目 |
| |
| 摘 要： | 根据基因重组原理,定义了新的反向逻辑交叉算子和随机逻辑交叉算子对标准遗传算法进行改进.利用改进的遗传算法求解多尺度小波分解每层系数的最优阈值,通过软阈值法对小渡系数处理后进行小波重构.实验结果表明,利用改进的遗传算法进行小波去噪是可行的,且能够达到较高的信噪比.
|
| 关 键 词： | 图像去噪 改进遗传算法 小波变换 阈值 逻辑交叉算子 |
| 文章编号： | 1000-7024(2008)09-2381-03 |
| 修稿时间： | 2007-05-16 |
Threshhold optimization for wavelet denosing based on improved genetic algorithm |
| |
| WANG Zhi-ming,WU Zhao-hua. Threshhold optimization for wavelet denosing based on improved genetic algorithm[J]. Computer Engineering and Design, 2008, 29(9): 2381-2383 |
| |
| Authors: | WANG Zhi-ming WU Zhao-hua |
| |
| Affiliation: | WANG Zhi-ming,WU Zhao-hua(College of Science,Hunan Agricultural University,Changsha 410128,China) |
| |
| Abstract: | Classical genetic algorithm is improved based on pinciple of gene reconfiguration.Reverse and random logical crossover ope-rator are defined and used to implement gene reconfiguration.Then based on improved GA,every scale best thresholds are solved after decomposed by multiscale wavelet transform.Reconstructed signal is obtained by using the inverse wavelet transform after all coefficients are dealt with soft threshold method.Experimental results show that the method is effective and can obtain optimal sign... |
| |
| Keywords: | image denoising improved genetic algorithm wavelet transform threshold logical crossover operator |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
