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

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 highresolution 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.