基于Radon变换的运动模糊方向精确估计  

Accurate Estimation of the Motion Blur Direction Based on Radon Transform

作　　者：李秀怡[1] 黄继风[1] 

机构地区：[1]上海师范大学数理信息学院,上海200234

出　　处：《计算机工程与科学》2008年第9期51-52,57,共3页Computer Engineering & Science

摘　　要：在模糊图像复原技术中,运动模糊方向的估计有着极其重要的作用。它不仅可以作为模糊复原的一个重要参数,也可以作为估计模糊距离的重要参数。通过运动模糊方向,可以将图像复原转化到一维进行操作,使复原过程简化。因此,不管从整体上还是局部上运动模糊角度的精确估计,对图像恢复技术都有很重要的应用价值。本文提出一种基于频域特性利用Radon变换对模糊图像的模糊方向进行估计的改进方法。仿真实验证明了其估计结果的精确性。In image restoration, the direction of motion blur plays an important role, which can act as an important input argument not only for image restoration but also for the length estimation of motion blur. Moreover, by knowing the direction of motion blur, we can simplify the procedure of image restoration by converting the image into one dimensional. So the accurate estimation of motion blur direction has a great application value locally or globally. In this article, as to the direction estimation of motion blur,a new and improved method based on the Radon transform in the frequency domain is proposed. The corresponding experiments show its accuracy and effectiveness.

关 键 词：图像退化 图像复原 点扩展函数 运动模糊方向 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]