Fig. 1. Optical memory effect of scattering medium^[47]

Fig. 2. Traditional angular memory effect and translated memory effect^[48]

Fig. 3. FOV extended by additional imaging lens used for adjusting PSF^[34]. (a) Schematic of correlation imaging without assistant lens; (b) schematic of correlation imaging with assistant lens; (c) restoration of image with large FOV; (d) restoration of color image

Fig. 4. Enlargement of DOF by PSF manipulation. (a) Experimental setup; (b) distributions of PSF at different object planes; (c) simultaneous restoration of three objects with different DOFs^[58]

Fig. 5. Enlargement of FOV by multiple PSFs and spatial de-multiplex^[55-56]. (a) Circles indicate point sources for measuring multiple PSFs; (b) dotted circle represents expanded FOV; (c) dotted circle represents range of sample to be tested; (d) speckle pattern of whole sample; (e)(g) speckle of square hole and its recovered image; (f)(h) speckle of triple-slit's region and its recovered image

Fig. 6. Improved deconvolution results of Wiener filtering based on memory effect. (a) Recovered snowflake pattern; (b)(c) intensity distributions of cross-sections marked with “1” and “2” in Fig. 6(a) by different methods^[60]

Fig. 7. Recovery method from known reference to unknown things. (a)(b) Known reference “H” and its speckle pattern; (c)(d) image with known reference and unknown things and its speckle pattern; (e) recovered image^[61]

Fig. 8. PSF measured via spatial-correlation method. With z₁=z₄, object plane marked with dotted rectangle becomes conjugate plane of CCD_r under spatial correlation^[55]

Fig. 9. PSF estimated by object-boundary method and recovery process of scattering image under dynamic water^[68]

Fig. 10. Schematic of single-shot multispectral imaging with monochromatic camera. (a) Light from multispectral object propagating through strongly scattering medium generates speckle pattern on monochromatic camera; (b) multispectral PSF acquired by single pinhole illuminated by light with different spectral bands; (c) multispectral imaging; (d) image synthesis recovery^[70]

Fig. 11. Correlation of PSF with different spectra. (a) Spectra of two LED sources, which are reference and tested sources, passing through corresponding filters (no overlap at all); (b)(c) speckle patterns of two LED sources, where object in middle is known; (d)(e) directly recovered image and recovered image after PSF adjustment^[71]