Lu Yuxin, Zhao Wenjing, Zhai Aiping, Liu Nuo, Wang Dong
Opt Lett. 2024 Oct 1;49(19):5363-5366. doi: 10.1364/OL.538196.
Single-pixel phase imaging (SPPI) utilizes a single-pixel detector combined with interferometry to capture phase information of an unknown field. However, to reconstruct an M × N image, normally M × N modulations and detections are required, leading to a long imaging time for SPPI. Here, a complex-valued Zernike basis SPPI (Zernike-SPPI) is proposed to achieve phase reconstruction at as high quality as possible with a very low sampling ratio. Simulations and experiments demonstrate that Zernike-SPPI achieves better imaging quality at a sampling ratio of less than 10% compared to the state-of-the-art SPPI techniques based on Hadamard basis. This means Zernike-SPPI can obtain a high-quality phase image with less imaging time. This work offers a solution to achieve fast SPPI while guaranteeing quality phase reconstruction as high as possible.
单像素相位成像（SPPI）利用单像素探测器结合干涉测量法来获取未知场的相位信息。然而，要重建一幅M×N的图像，通常需要进行M×N次调制和检测，这导致SPPI的成像时间很长。在此，提出了一种复值泽尼克基单像素相位成像（Zernike-SPPI）方法，以在非常低的采样率下尽可能高质量地实现相位重建。仿真和实验表明，与基于哈达玛基的现有SPPI技术相比，Zernike-SPPI在采样率低于10%时能实现更好的成像质量。这意味着Zernike-SPPI可以用更短的成像时间获得高质量的相位图像。这项工作为在保证尽可能高质量的相位重建的同时实现快速SPPI提供了一种解决方案。
