Fig. 1. Experimental setup for single-photon imaging with compressive sensing^[30]

Fig. 2. Experimental results of single-photon imaging based on compressed sensing. (a) Compressive imaging results based on 0-1 matrices; (b) compressive imaging results based on complementary matrices; (c) imaging results based on point scanning; (d) single-photon imaging SNR as functions of number of effective photons^[31]

Fig. 3. Experimental setup for spectral compressive sensing measurement^[32]

Fig. 4. Reconstruction results for 632.8-nm wavelength monochromatic light under different measurement methods^[32]. (a) Non-negative matrix measurement; (b) mean subtraction process; (c) complementary matrix measurement; (d) original spectrum detected by a CCD under strong light

Fig. 5. Experimental setup of spectral imaging with a spectrometer^[33]

Fig. 6. Spectral imaging results of compressive sensing based on a spectrometer^[33]. (a) Transmission spectrum of the object; (b1)-(b7) reconstructed images under different wavelengths; (b8) imaging result under full-rangewavelength

Fig. 7. Experimental setup of spectral imaging system with dual compressed sensing^[35]

Fig. 8. Working time sequences of the dual-DMDs and PMT^[35]

Fig. 9. Experimental results of spectral imaging based on cascade compressed sensing^[35]. (a) Spectrum lines under different spatial modulations; (b) intensity fluctuations with different wavelengths of 530nm, 610nm, and all-spectrum; (c) imaging results with different wavelengths of 530nm, 610nm, and all-spectrum

Fig. 10. Physical and structural drawings of rearranged fiber bundles

Fig. 11. Schematic of single-pixel 3D laser radar system^[36]

Fig. 12. Reconstruction results of single pixel lidar affected by stacking effect^[36]. (a) Reconstruction results of “N”; (b) reconstruction results of “T”

Fig. 13. Corrected image affected by stacking effect^[36]

Fig. 14. Reconstruction result of the sparse matrix measurement^[36]. (a) Number of “1” in each pattern is 1000; (b) number of “1” in each pattern is 500; (c) number of “1” in each pattern is 100; (d) number of “1” in each pattern is 50

Fig. 15. Single-photon time-resolved imaging spectrometer

Table 1. Key performance indicators of single-photon time-resolved imaging spectrometer