Chinese Journal of Lasers, Volume. 48, Issue 4, 0401012(2021)
Review of Optical Scattering Imaging Technology with Wide Field of View and Long Distance
Fig. 1. Experimental results of 3D distance gated imaging[32]. (a) 950m slice imaging; (b) 1250m slice imaging; (c) reflectivity reconstruction image; (d) depth reconstruction image
Fig. 2. Detection and reconstruction method of target image based on distance spectrum[33]
Fig. 3. Comparison of results of polarization dehazing[37]. (a) Original data and (b) Schechner polarization dehazing image with sky area; (c) original data and (d) polarization dehazing image obtained by new method without sky area
Fig. 4. Magnified views of experimental results obtained by underwater imaging method[38]. (a1)(a2) Underwater original images; (b1)(b2) underwater images for polarized light
Fig. 5. Image of fiber bundle without correction and images after correction with different modes[42]
Fig. 6. Local image and image corrected by CAOMG method for mouse brain tissues[44]. (a)Local image; (b)image corrected by CAOMG method
Fig. 7. Experimental design diagrams of wavefront shaping technology[13]. (a) Speckle pattern is formed after plane wave focusing on scattering medium; (b) light is refocused by wavefront shaping
Fig. 8. Experimental light path of scattering imaging based on optical transmission matrix[14]
Fig. 9. Experimental results of scanning imaging method based on speckle correlation[15]. (a) Fluorescent speckle image of target object; (b) average value of 9 speckle autocorrelation images; (c) target image without dielectric occlusion;(d) reconstructed target of
Fig. 10. Concept and numerical results of single-shot non-invasive scattering imaging through strong scattering medium[16]. (a) Concept schematic; (b) image captured by camera; (c) autocorrelation of image captured by camera; (d) reconstructed target image
Fig. 11. Results of experimental imaging through standard scattering medium (scale bar: 200 pixel)[49]. (a) Reference speckle pattern; (b) speckle pattern of unknown object; (c) image retrieved by deconvolution algorithm;(d) pattern of wide-field imaging
Fig. 12. Experimental setup and results[51]. (a) Experimental setup; (b)(c) experimental results. Scale bar: 1000μm
Fig. 13. Schematic of experimental setup of scattering imaging beyond memory effect range[52]
Fig. 14. Experimental results of scattering imaging with prior information[53]. (a) Collected speckle image; (b) autocorrelation image of speckle image; (c) result reconstructed by phase recovery algorithm; (d) autocorrelation image of referenced object “2”; (e) autocorrelation image of object “1” to be tested; (f) reconstructed image of object “1”; (g) mixed autocorrelation image; (h) autocorrelation image of referenced object “1”; (i) reconstructed imag
Fig. 15. Reconstructed results of wide-field speckle correlated imaging[18]. (a) Speckle and its autocorrelation image of dual targets; (b) mask corresponding to
Fig. 17. Comparison of original object image and reconstruction results[17]. (a) Original object image; (b) direct detection of hidden target;(c) image reconstructed by single-shot coherent power spectrum technology; (d) image reconstructed by traditional CDI
Fig. 18. Experimental light path and reconstructed results of PIE method for wide-field scattering imaging[56]. (a) Experimental light path; (b) target; (c) reconstructed image
Fig. 19. Schematics of experimental setup and shower curtain effect[58]. (a) Schematic of experimental setup; (b) object is closely attached to the scattering medium which is imaged onto the detector; (c) object is far from the scattering medium
Fig. 20. Experimental results of scattering imaging via correlated imaging technique[23]. (a) Target of interest (marked by circles); (b) speckle pattern; (c) PSF of square area; (d) reconstructed result of autocorrelation image of
Fig. 21. Experimental setup and results of NLoS imaging of single-shot speckle correlation method (scale bar: 20 pixel)[16]. (a) Schematic of experimental light path; (b) image captured by camera; (c) reconstructed target image; (d) original target image
Fig. 22. Experimental results of NLoS imaging[20]. (a) NLoS associated example for long exposure; (b) NLoS associated example for short exposure; (c) experimental reconstruction results with varying exposure lengths; (d) comparison of reconstruction results of different methods
Fig. 23. Experimental diagram of non-line-of-sight imaging of computational periscope[61]
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Xiujian Li, Wusheng Tang, Wenjun Yi, Junli Qi. Review of Optical Scattering Imaging Technology with Wide Field of View and Long Distance[J]. Chinese Journal of Lasers, 2021, 48(4): 0401012
Special Issue: SPECIAL ISSUE FOR "NATIONAL UNIVERSITY OF DEFENSE TECHNOLOGY"
Received: Oct. 9, 2020
Accepted: Nov. 17, 2020
Published Online: Feb. 4, 2021
The Author Email: Li Xiujian (xjli@nudt.edu.cn)