摘要
为更有效地对运动模糊图像进行图像还原,本文在具有普遍意义的匀速直线运动退化模型下对点扩散函数进行分析,得到参数为模糊方向和模糊尺度构成的二元函数。文章采用基于双线性插值的方向微分算子和微分自相关算法对点扩散函数进行估计。实验表明,该方法可以对点扩散函数的参数进行高精度鉴别,采用经过本文方法获取的点扩散函数均可实现还原算法对模糊图像的有效还原。
In order to effectively restore the motion blurred images, this paper analyzes the point spread function(PSF) under the uniform linear motion module and simplifies the PSF into binary function constituted of blur extent and blur direction. The paper adopts the direction of differential operator based on bilinear interpolation and differential autocorrelation algorithm to estimate the PSF. The experiments demonstrate that the method can precisely discriminate PSF's parameters, the restoration algorithms based on the estimated PSF obtained by the proposed method can effectively restore the experimental blur images.
出处
《电脑知识与技术》
2016年第2X期185-188,共4页
Computer Knowledge and Technology
关键词
图像还原
点扩散函数
方向微分算子
微分自相关算法
Image Restoration
PSF
Direction of Differential Operator
Differential Autocorrelation Algorithm
