| 基于遗传算法和LM优化的BP神经网络的图像复原算法 |
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| 引用本文： | 杨宇光,王叶红,王园.基于遗传算法和LM优化的BP神经网络的图像复原算法[J].微计算机应用,2010,31(10). |
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| 作者姓名： | 杨宇光 王叶红 王园 |
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| 作者单位： | 北京工业大学计算机学院,北京,100124 |
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| 基金项目： | 北京市教育委员会科技发展计划面上项目 |
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| 摘 要： | 提出了一种针对图像复原的GA-BP算法.在对退化图像进行复原的过程中,针对BP算法易陷入局部极小、收敛速度慢的缺点,根据遗传算法具有全局寻优的特点,充分利用遗传算法的全局搜索性能进行"粗"搜索,当搜索到全局最优点的附近时,再采用BP算法进行局部搜索,将两者结合起来形成GA-BP算法.通过对图像复原后的效果进行比较,实验表明该算法可以有效的应用于图像复原.
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| 关 键 词： | 神经网络 遗传算法 图像复原 |
Image Restoration Algorithm Base on BP Neural Network Optimized by Genetic and LM Algorithm |
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| YANG Yuguang,WANG Yehong,WANG Yuan.Image Restoration Algorithm Base on BP Neural Network Optimized by Genetic and LM Algorithm[J].Microcomputer Applications,2010,31(10). |
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| Authors: | YANG Yuguang WANG Yehong WANG Yuan |
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| Affiliation: | YANG Yuguang,WANG Yehong,WANG Yuan(College of Computer Science and Technology,Beijing University of Technology,Beijing,100124,China) |
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| Abstract: | A GA-BP algorithm for image restoration is presented. For the reason of BP algorithm's disadvantage- local best value and low speed in convergence,and the advantage of genetic algorithm,this paper makes full use of the characteristic of global search of genetic algorithm. First,it makes a approximately search. Then it uses BP algorithm for an exactly search. Combination of the two forms an algorithm called GA-BP algorithm. After comparing the performance of the restored images,a conclusion of this algorithm... |
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| Keywords: | Neural network Genetic algorithm Image restoration |
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