Estimating blur parameters of point spread function of motion-blurred image based on cepstrum

被引：0

作者：

Xie, Wei ^{[1
]}

Qin, Qianqing ^{[1
,2
]}

机构：

[1] National Engineering Research Center for Multimedia Software, Wuhan University, 129 Luoyu Road, Wuhan 430079, China

[2] State Key Laboratory for Information Engineering in Surveying Mapping and Remote Sensing, Wuhan University, 129 Luoyu Road, Wuhan 430079, China

来源：

Geomatics and Information Science of Wuhan University | 2008年 / 33卷 / 02期

关键词：

Algorithms - Error analysis - Image quality - Optical transfer function - Pixels;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The method of establishing the point spread function (PSF) of motion-blurred image is discussed. For linear motion blur, it is proved that the two dimensional PSF must be established directly in the motion direction, instead of decomposing to two axes or rotate to the horizontal axis. Then an algorithm is presented to estimate the two key parameters of PSF: establish the cepstrum of the motion-blurred image and find the minimum of it, the location of the minimum gives the information of blur range and blur direction. Experimental results show that the method can guarantee a small error a good quality of restoration when blur is at arbitrary direction and between 5-55 pixels. A big error occurs when blur range is out of 5-55 pixels.

引用

页码：128 / 131