High-resolution dual-polarization single-pixel imaging through dynamic and complex scattering media using random-frequency-encoded time sequences

Abstract

Single-pixel imaging (SPI) through complex media remains challenging. In this paper, we report high-resolution common-path SPI with dual polarization using random-frequency-encoded time sequences in complex environments where the illumination and detection paths are severely distorted. By leveraging a common-path optical configuration with orthogonal polarization states, a series of dynamic scaling factors can be corrected. The designed random-frequency encoding scheme disperses scattering-induced noise into artifacts to be simply removed. It is demonstrated in optical experiments that the proposed method is feasible and effective to reconstruct high-resolution object images in complex environments. The proposed method does not require complex optical components and prior knowledge about scattering media, providing a robust solution for high-resolution optical imaging in complex scenarios where the illumination and detection paths are severely distorted at the same time.