Zhou Lina, Xiao Yin, Chen Wen
Opt Express. 2023 Jul 3;31(14):23027-23039. doi: 10.1364/OE.489808.
Imaging with single-pixel detectors becomes attractive in many applications where pixelated detectors are not available or cannot work. Based on a correlation between the probing patterns and the realizations, optical imaging with single-pixel detector offers an indirect way to recover a sample. It is well recognized that single-pixel optical imaging through dynamic and complex scattering media is challenging, and dynamic scaling factors lead to serious mismatches between the probing patterns and the realizations. In this paper, we report self-corrected imaging to realize high-resolution object reconstruction through dynamic and complex scattering media using a parallel detection with dual single-pixel detectors. The proposed method can supervise and self-correct dynamic scaling factors, and can implement high-resolution object reconstruction through dynamic and complex scattering media where conventional methods could not work. Spatial resolution of 44.19 µm is achieved which approaches diffraction limit (40.0 µm) in the designed optical setup. The achievable spatial resolution is dependent on pixel size of spatial light modulator. It is experimentally validated that the proposed method shows unprecedented robustness against complex scattering. The proposed self-corrected imaging provides a solution for ghost recovery, enabling high-resolution object reconstruction in complex scattering environments.
在许多无法使用像素化探测器或像素化探测器无法工作的应用中,单像素探测器成像变得颇具吸引力。基于探测模式与测量结果之间的相关性,单像素探测器光学成像提供了一种间接恢复样本的方法。众所周知,通过动态和复杂散射介质进行单像素光学成像具有挑战性,动态缩放因子会导致探测模式与测量结果之间出现严重不匹配。在本文中,我们报告了一种自校正成像方法,该方法通过使用双单像素探测器的并行检测,实现了通过动态和复杂散射介质进行高分辨率物体重建。所提出的方法可以监督和自校正动态缩放因子,并且能够在传统方法无法工作的动态和复杂散射介质中实现高分辨率物体重建。在设计的光学装置中实现了44.19 µm的空间分辨率,接近衍射极限(40.0 µm)。可实现的空间分辨率取决于空间光调制器的像素大小。实验验证了所提出的方法对复杂散射具有前所未有的鲁棒性。所提出的自校正成像为重影恢复提供了一种解决方案,能够在复杂散射环境中实现高分辨率物体重建。