首页 | 本学科首页   官方微博 | 高级检索  
     检索      

PIE成像中周期性重建误差的研究
引用本文:何小亮,刘诚,王继成,王跃科,高淑梅,朱健强.PIE成像中周期性重建误差的研究[J].物理学报,2014,63(3):34208-034208.
作者姓名:何小亮  刘诚  王继成  王跃科  高淑梅  朱健强
作者单位:1. 江南大学理学院光电信息科学与工程系, 无锡 214122;2. 中国科学院上海光学精密机械研究所, 上海 201800
基金项目:江苏省自然科学基金(批准号:BK2012548)资助的课题.
摘    要:本文分析了PIE技术中周期性误差出现的根本原因,并在此基础上提出一种能明显减小此种误差的方法.通过将现有PIE成像技术中的定步长二维周期扫描变为步长和方向都不确定的随机二维扫描,可以根本上去除样品重建像中的周期性误差,从而得到准确的相位和振幅像,对提高PIE成像的精度有较好的现实意义.

关 键 词:相干衍射成像  相位恢复  成像误差
收稿时间:2013-09-10

Study on the periodic error in ptychographic iterative engine imaging
He Xiao-Liang,Liu Cheng,Wang Ji-Cheng,Wang Yue-Ke,Gao Shu-Mei,Zhu Jian-Qiang.Study on the periodic error in ptychographic iterative engine imaging[J].Acta Physica Sinica,2014,63(3):34208-034208.
Authors:He Xiao-Liang  Liu Cheng  Wang Ji-Cheng  Wang Yue-Ke  Gao Shu-Mei  Zhu Jian-Qiang
Institution:1. Department of Photoelectric Information Science and Engineering, Jiangnan University, Wuxi 214122, China;2. Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
Abstract:Based on the analysis of the periodic error in the reconstructed image of the ptychographic iterative engine (PIE), the cause in mathematics for this kind of error is found out, and then a method is proposed to eliminate it. By replacing the 2D periodic scanning of fixed step interval in common PIE imaging with the 2D raster scanning of changing step interval, the periodical error in the reconstructed images can be dramatically reduced, and then the accuracy of the PIE imaging is remarkably improved. Both the theoretical investigation and numerical simulations are presented.
Keywords:coherent diffraction imaging  phase retrieval  reconstruction error
本文献已被 CNKI 等数据库收录!
点击此处可从《物理学报》浏览原始摘要信息
点击此处可从《物理学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号