Fig. 1. Diagram of the experimental setup. (a) Principle of the second-order correlation imaging scheme; (b) photograph of the laser beam passing through the scattering media^[29]

Fig. 2. Experimental setup diagram of the GIL system^[30]

Fig. 3. Experimental results of the GIL system. (a) Clear; (b) cloudy; (c) light rain; (d) moderately foggy; (e) night^[30]

Fig. 4. Imaging results of three different situations. (a) Static scattering media; (b) moving scattering media; (c) filtered imaging result^[31]

Fig. 5. Schematic diagram of the optical device^[41]

Fig. 6. Image PSNR obtained at different light intensities^[41]

Fig. 7. Optical path diagram of the CGI. (a) Non-scattering media; (b) scattering media is located in the transmitting path; (c) scattering media is located in the receiving path; (d) scattering media is located in the transmitting path and the receiving path^[42]

Fig. 8. Schematic diagram of the LGI system^[45]