基于投影自相关的运动降晰参数辨识  

Motion blur scales identification based on autocorrelation of projection

作　　者：张采芳[1] 田岩[2] 柳健[2] 

机构地区：[1]华中科技大学文华学院,武汉430074 [2]华中科技大学电子与信息工程学院,武汉430074

出　　处：《计算机应用》2008年第7期1721-1723,1731,共4页journal of Computer Applications

摘　　要：为了对退化图像进行恢复,首先要得到退化图像的降晰参数。针对匀速运动降晰的情形,提出了一种基于投影的自相关法自动估计降晰参数。该方法首先将运动方向转化为水平方向,求退化图像在水平方向的微分,再对微分图像求垂直方向的微分,绘出两次微分图像投影的自相关曲线,自相关曲线中最大值与最小值之间的距离便是退化图像的降晰参数。In order to restore the degraded image, the first step is to give the estimation of the Dlur scale, Blur scale identification based on the autocorrelation of projection was proposed aiming at the motion blurring. The movement direction was transformed into horizontal direction, firstly computing the horizontal derivative of blurred image, and secondly computing the vertical derivative of the horizontal derivative of blurred image. Then, the autocorrelation curve of the projection for the vertical derivative was drawn, and the degradation scales were equal to the distance of maximum and minimum values of the autocorrelation function.

关 键 词：运动降晰 图像恢复 点扩展函数 投影 自相关曲线 

分 类 号：TP751[自动化与计算机技术—检测技术与自动化装置]