标题： 亚像素精度的ptychography横向位置校正 显示英文标题

标题： Lateral position correction in ptychography with sub-pixel accuracy

摘要： 全息成像，一种相干衍射成像形式，用于短波长（例如X射线、电子束）以实现高分辨率图像重建。 重建质量的一个限制因素是照明探针位置的精确知识。 最近，已经取得了许多进展以放松对探针位置精度的要求。 在这里，我们分析并展示了一种直接的方法，可以用于以亚像素精度校正探针位置。 本文中给出了可见光的模拟和实验结果。 显示英文摘要

摘要： Ptychography, a form of Coherent Diffractive Imaging, is used with short wavelengths (e.g. X-rays, electron beams) to achieve high-resolution image reconstructions. One of the limiting factors for the reconstruction quality is the accurate knowledge of the illumination probe positions. Recently, many advances have been made to relax the requirement for the probe positions accuracy. Here, we analyze and demonstrate a straightforward approach that can be used to correct the probe positions with sub-pixel accuracy. Simulations and experimental results with visible light are presented in this work.