Fig. 1. Schematic of imaging optical paths. (a) COACH[32]; (b) I-COACH[35]; (c) LI-COACH[36]; (d) scattering imaging[39]

Fig. 2. Flow chart of CPM generation with G-S algorithm[36]

Fig. 3. Relationship between normalized reconstruction intensity and axial distance of pinhole from focal plane of lens L232

Fig. 4. Imaging results of regular imaging system, FINCH and COACH[32]

Fig. 5. Nonlinear reconstruction results corresponding to different (o,r)[37]

Fig. 6. Structural diagram of hybrid FINCH-COACH[43]

Fig. 7. Linear relationship between normalized reconstruction intensity and axial distance[43]

Fig. 8. Imaging results corresponding to different transmission factors[43]

Fig. 9. Average reconstruction results of COACH for different numbers of CPMs[43]

Fig. 10. COACH configuration for 4D imaging[33]

Fig. 11. Spectral reconstruction results[33]

Fig. 12. Nonlinear reconstruction of digit ‘5’ based on scattering medium, scale bar: 350 μm[39]

Fig. 13. Single camera COACH imaging system[47]

Fig. 14. Schematic of CPM synthesis for single camera COACH imaging system[47]

Fig. 15. Schematic of field of view extension for I-COACH[48]

Fig. 16. Structural diagram of PAIS[52]

Fig. 17. Imaging results of PAIS systems with different radii[52]