计算机应用与软件Issue(1)：170-172,190,4.DOI:10.3969/j.issn.1000-386x.2014.01.044
一种基于中轴探测的运动模糊方向估计方法
A MOTION BLUR DIRECTION ESTIMATION METHOD BASED ON MEDIAL AXIS DETECTION
摘要
Abstract
The blur direction estimation of motion blurred image is vulnerable to be influenced by the bright cross line in spectrum centre and the image size.To address this problem,we analyse in detail the degradation model of uniform speed linear motion blur image.Through the formula derivation on point spread function,the relation between the image size and the blur direction is found,and then a motion blur direction estimation method based on medial axis detection is presented.First,the method applies the Fourier transform and dynamic compression on the blur image to get the spectrogram.Then in order to eliminate the effect of the bright centre cross line,the pretreatment on the spectrogram is executed.Finally,the estimation of motion blur direction is calculated by the deduced formula.Simulation experiments show that the method is simple and accurate,it overcomes the impact of image aspect ratio on estimation result,and has stronger robustness and higher time efficiency.关键词
图像复原/运动模糊/模糊方向估计/中轴探测Key words
Image restoration/Motion blur/Blur direction estimation/Medial axis detection分类
信息技术与安全科学引用本文复制引用
甘玲,刘宝,郭小雨..一种基于中轴探测的运动模糊方向估计方法[J].计算机应用与软件,2014,(1):170-172,190,4.基金项目
国家自然科学基金项目（61075019）。 （）
