CAJ | 학술논문

目前通过点扩散函数(PSF)来恢复高清图像都假设了点扩散函数的某些性能是已知的，比如类型，尺寸等。本文通过利用模糊图像边缘信息得到点扩散函数最大直径，然后利用 Radon 变换法估计点扩散函数。本文是基于完全未知的点扩散函数来逐步得到其相关特性，而且通过大量实验证明由于噪声的影响，直接利用 Radon 变换估计点扩散函数只能得到点扩散函数的大致结构，恢复出来的图像效果欠佳，所以需要先对原始模糊图像进行滤波，并对得到的点扩散函数框架做插值运算，可以得到更准确的点扩散函数。
목전통과점확산함수(PSF)래회복고청도상도가설료점확산함수적모사성능시이지적，비여류형，척촌등。본문통과이용모호도상변연신식득도점확산함수최대직경，연후이용 Radon 변환법고계점확산함수。본문시기우완전미지적점확산함수래축보득도기상관특성，이차통과대량실험증명유우조성적영향，직접이용 Radon 변환고계점확산함수지능득도점확산함수적대치결구，회복출래적도상효과흠가，소이수요선대원시모호도상진행려파，병대득도적점확산함수광가주삽치운산，가이득도경준학적점확산함수。
Currently, using the point spread function (PSF) to get the deblurring images also needs to assume that some properties of the PSF are known,for example, type, size, etc. This paper uses the edges of blurred images to estimate the maximum diameter of the PSF, then uses the Radon transform to obtain the PSF. This paper is based on the completely un-known PSF to gradually get its relevant characteristics. While more expensive, because of the noise, using the Radon trans-form directly to estimate the PSF only can get the general structure of the PSF, the quality of recovered images is poor. so the blurred images should be filtered, and the general structure of the PSF should be interpolated, the PSF will perform better.