光学学报, 2009, 29 (3): 648, 网络出版: 2009-03-17   

一种空间变化PSF图像分块复原的拼接方法

A Splicing Method of Sectioned Restoration Algorithm for Images with Space-Variant Point Spread Function
作者单位
浙江大学现代光学仪器重点实验室, 浙江 杭州 310027
摘要
介绍了一种退化函数随空间变化图像的分块复原和拼接方法, 首先以等晕区为依据对退化函数随空间变化的图像进行分块并向外延伸一定区域, 然后使用Lucy-Richard算法对每一个图像块进行图像复原, 在去除各复原图像块包含明显振铃波纹的部分边缘区域之后, 将相邻图像块剩余的重叠区像素以其到等晕区边界的距离构成的加权系数进行叠加, 拼接得到完整的图像。该方法能够消除退化函数随空间变化的图像分块复原处理时产生的振铃波纹, 在诸如卫星遥感、飞机航拍图像复原, 医学图像处理等众多领域均可广泛应用。
Abstract
A sectioned restoration algorithm for images with space-variant point spread function and the according splicing method are introduced. Firstly, the blurred image is divided to sub-frame sections based on isoplanatic region and extended outward region. Then, the sub-sections are restored by Lucy-Richard algorithm. After removing the boundary regions which contain obvious ringing artifacts, the pixels in the rest of overlapping region between adjacent sections are weight stacked. The weight coefficients are related to the distances between the pixels and the boundary. At last, the sub-frames are spliced together to construct the composite full-image. The method is effective for eliminating the ringing artifacts coupled with sectioned image restoration with space-variant degraded function. It can be used in image restoration of remote-sensing with satellite and aerocraft, and also medical image processing.

陶小平, 冯华君, 雷华, 李奇, 徐之海. 一种空间变化PSF图像分块复原的拼接方法[J]. 光学学报, 2009, 29(3): 648. Tao Xiaoping, Feng Huajun, Lei Hua, Li Qi, Xu Zhihai. A Splicing Method of Sectioned Restoration Algorithm for Images with Space-Variant Point Spread Function[J]. Acta Optica Sinica, 2009, 29(3): 648.

本文已被 14 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!