Reflective Underwater Ghost Imaging

Qing, 项青 Xiang; Kecheng, 杨克成 Yang; Long, 于龙 Yu; Min, 夏珉 Xia; Wei, 李微 Li; Wenping, 郭文平 Guo

doi:10.3788/aos201535.0711002

Cited by 8 publications

(1 citation statement)

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“…Over the past three decades, ghost imaging (GI) [8][9][10][11][12][13] that retrieves the images from the correlation function between two correlated light fields has shown an advantage of anti-disturbance, such as atmospheric turbulence [14][15][16] and scattering media [17][18][19][20]. Note that the theoretical analysis and related experiments of underwater GI (UGI) [21][22][23][24] have been reported, and presented great potential in optically harsh or noisy underwater environment. * Authors to whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

The influence of free-surface vortex on underwater ghost imaging

Jiang

Bai²,

Tan³

et al. 2023

J. Opt.

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The vortex generated in the gas-liquid interface may appear in the propagation path, and shows severe disturbance to light propagation, thus affects the final imaging. In this Letter, the influence from the vortex on underwater ghost imaging is investigated experimentally. We find a counter-intuitive phenomenon that imaging quality becomes worse when the vortex is close to the imaging target, which is absolutely different from the typical channel disturbances, such as atmospheric turbulence and scattering. This phenomenon can be explained by the influence mechanism of speckle variation and the effective data distribution on the bucket detector. Meanwhile, a modified imaging method based on the effective bucket samples is proposed to enhance imaging quality and verified in experiment.

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