光学学报, 2015, 35 (10): 1011002, 网络出版: 2015-10-08
小孔扫描傅里叶叠层成像的关键参量研究 下载: 671次
Research on the Key Parameters of Aperture-Scanning Fourier Ptychography
成像系统 傅里叶光学 傅里叶叠层 相位恢复 imaging systems Fourier optics simulation experiment Fourier ptychography phase retrieval
摘要
小孔扫描傅里叶叠层成像术已在三维全息重聚焦和超分辨宏观成像领域显示出巨大的潜力。对小孔扫描傅里叶叠层成像技术的关键参量对光场恢复质量的影响进行了研究,根据小孔扫描傅里叶叠层成像的迭代算法,通过仿真实验研究了小孔的交叠率和孔径大小对光场恢复质量的影响。仿真结果表明:在相同孔径情况下,小孔交叠率存在一个阈值,当交叠率大于该阈值时,光场恢复质量随交叠率增大而显著提高;在相同交叠率情况下小孔孔径越小光场恢复质量越高。该研究成果对小孔扫描傅里叶叠层成像术在进一步应用中的参数优化能起到一定程度的理论指导作用。
Abstract
Aperture-scanning Fourier ptychography technology shows great potential capacity in the fields of threedimensional holographic refocusing and super- resolution macroscopic imaging. The influence of some key parameters of the technique on recovering quality is investigated. The influences of overlap ratio and size of circular apertures are studied based on light field simulation experiments using aperture-scanning Fourier ptychography iterative algorithm. The simulation results show that there is a threshold of overlap ratio under the circumstance of same aperture size, when overlap ratio is greater than the threshold, the recovering quality increases with overlap ratio raising. Under the circumstance of same overlap ratio, the recovering quality increases with reduction of the aperture size. The research results can provide guiding role for optimizing aperture parameter in the further applications of aperture-scanning Fourier ptychography.
谢宗良, 马浩统, 任戈, 亓波, 丁科. 小孔扫描傅里叶叠层成像的关键参量研究[J]. 光学学报, 2015, 35(10): 1011002. Xie Zongliang, Ma Haotong, Ren Ge, Qi Bo, Ding Ke. Research on the Key Parameters of Aperture-Scanning Fourier Ptychography[J]. Acta Optica Sinica, 2015, 35(10): 1011002.