Coherent diffraction imaging through shift-invariant scattering
Coherent diffraction imaging through shift-invariant scattering
复制标题
通过平移不变散射进行相干衍射成像
DOI：
10.1007/s10043-022-00769-6
复制
发表时间：
2022
期刊：
影响因子：
1.2
通讯作者：
Tanida Jun
中科院分区：
文献类型：
--
作者：
Horisaki Ryoichi;Yamazaki Kaoru;Nishizaki Yohei;Naruse Makoto;Tanida Jun
本文提出了一种基于相干衍射成像的大视场单炮相位成像方法。相干衍射成像可以用紧凑的光学硬件实现，不需要任何干涉测量，但有一个问题是视场严重受限。虽然这种有限的视场可以通过引入随机光学过程来扩展，但这种解决方案增加了光学硬件和计算的成本。为了解决这个问题，我们在相干衍射成像中使用了平移不变的散射过程。该光学过程是通过在成像系统中的光瞳平面上插入散射板来实现的。在该方法中，用相干光照射复振幅物体，通过预先探测的散射点扩散函数的卷积来捕捉物体的单衍射强度图像。考虑到随机化的卷积过程，基于图形迭代引擎从捕获的强度图像重建物场。对所提出的方法进行了数值分析和实验验证。
In this paper, we present a method for single-shot phase imaging with a wide field of view based on coherent diffraction imaging. Coherent diffraction imaging can be implemented by compact optical hardware without any interferometric measurement, but one issue is a severely limited field of view. Although this limited field of view is extendable by introducing random optical processes, this solution increases the costs of optical hardware and computations. To solve this issue, we utilize a shift-invariant scattering process in coherent diffraction imaging. This optical process is implemented by inserting a scattering plate on the pupil plane in an imaging system. In the proposed method, a complex amplitude object is illuminated with coherent light, and a single diffraction intensity image from the object is captured through the convolution of the scattering point spread function, which is probed in advance. The object field is reconstructed from the captured intensity image based on the ptychographical iterative engine, taking into account the randomized convolution process. The proposed method is numerically analyzed and experimentally demonstrated.
影响因子：
3.6
作者：
Okamoto, Yuka;Horisaki, Ryoichi;Tanida, Jun
通讯作者：
Tanida, Jun