| 基于APEX方法的改进图像复原算法 |
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| 引用本文： | 谢盛华,张启衡,宿丁. 基于APEX方法的改进图像复原算法[J]. 激光与红外, 2007, 37(2): 185-188 |
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| 作者姓名： | 谢盛华 张启衡 宿丁 |
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| 作者单位： | 中国科学院光电技术研究所,四川,成都,610209;中国科学院研究生院,北京,100039;中国科学院光电技术研究所,四川,成都,610209 |
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| 基金项目： | 国家高技术资助预研项目 |
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| 摘 要： | 在湍流退化图像复原研究中,提出了一种基于APEX方法的改进图像复原算法.该算法采用APEX方法的基本原理,结合真实湍流退化图像的频谱信息特征, 对APEX方法中点扩展函数的估计过程进行了相应的改进,采用多方向的综合估计代替原有一次性估计,从而减少了点扩展函数的估计误差,增加了APEX方法的稳定性.对改进算法和原有算法进行了对比性实验研究,其结果表明,该算法对湍流退化图像的复原较原有算法在稳定性上有一定的提高,减少了随机噪声对图像复原的影响.
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| 关 键 词： | 大气湍流 图像复原 APEX方法 点扩展函数估计 |
| 文章编号： | 1001-5078（2007）02-0185-04 |
| 修稿时间： | 2006-06-13 |
The Improved Image Restoration AlgorithmBased on APEX Method |
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| XIE Sheng-hua; ZHANG Qi-heng; SU Ding. The Improved Image Restoration AlgorithmBased on APEX Method[J]. Laser & Infrared, 2007, 37(2): 185-188 |
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| Authors: | XIE Sheng-hua ZHANG Qi-heng SU Ding |
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| Affiliation: | The Institute of Optics and Electronics; the Chinese Academy of Science; Chengdu 610209; China;Graduate School of the Chinese Academy of Science; Beijing 100039; China |
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| Abstract: | During the course of turbulence-degraded image restoration,an improved image restoration algorithm is proposed based on APEX method.The algorithm improves the course of estimating point spread function(PSF) in the APEX method by utilizing the basic principle of the APEX method and combining the frequency-spectrum information of real turbulence-degraded image.It substitutes the single estimation by synthetic estimation in multi-direction.So the method reduces the error of PSF estimation,and enhances the stab... |
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| Keywords: | atmospheric turbulence image restoration APEX method PSF estimation |
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