| 基于APEX算法改进的图像复原算法 |
| |
| 引用本文： | 王辉,蒋平. 基于APEX算法改进的图像复原算法[J]. 光电工程, 2009, 36(6). DOI: 10.3969/j.issn.1003-501X.2009.06.023 |
| |
| 作者姓名： | 王辉 蒋平 |
| |
| 作者单位： | 1. 中国科学院光电技术研究所,成都,610209;中国科学院研究生院,北京,100039
2. 中国科学院光电技术研究所,成都,610209 |
| |
| 摘 要： | 在高斯类点扩函数退化图像复原的研究中,提出了一种基于降晰图像频谱特征改进的APEX图像复原算法.该算法采用APEX算法的基本原理,根据图像频谱信息特征,对点扩散函数(PSF)估计过程进行了改进,采用加权最小二乘算法拟合出降晰图像频谱主方向,采用图像频谱主方向上的数据进行PSF估计,以利用更多的有效数据,从而减少PSF的估计误差.针对模拟和实际采集的降晰图像进行实验,采用主观视觉和峰值信噪比进行评价.实验结果表明,改进的算法较使用非主频谱方向上的频谱数据的复原算法在复原效果上有一定的提高.
|
| 关 键 词： | 图像复原 APEX算法 点扩散函数估计 频谱 |
An Improved Image Restoration Method Based on APEX Method |
| |
| WANG Hui,JIANG Ping. An Improved Image Restoration Method Based on APEX Method[J]. Opto-Electronic Engineering, 2009, 36(6). DOI: 10.3969/j.issn.1003-501X.2009.06.023 |
| |
| Authors: | WANG Hui JIANG Ping |
| |
| Affiliation: | WANG Hui1,2,JIANG Ping1 (1.Institute of Optics and Electronics,Chinese Academy of Sciences,Chengdu 610209,China,2.Graduate School of Chinese Academy of Sciences,Beijing 100039,China) |
| |
| Abstract: | During the course of the image restoration degenerated by the Gauss(G) class Point Spread Function(PSF),an improved image restoration algorithm is proposed based on frequency spectrum characteristic of the blur image.According to the frequency spectrum information,the algorithm improves the course of estimation PSF by utilizing the basic principle of the APEX method.The main direction of the frequency spectrum of the blur image is fitted by the weighted least squares algorithm.The PSF is estimated by using ... |
| |
| Keywords: | image restoration APEX method PSF estimation frequency spectrum |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
