Monte Carlo based angular analysis of multiple scattered photons for underwater optical imaging

• Autorzy: Li S. , Wang R. , Chen G.

Identyfikatory

DOI

10.5277/oa180207

• Języki publikacji: EN

Abstrakty

EN

Image contrast and visibility associated with underwater optical imaging systems are usually degraded by the absorbing and scattering effects of turbid waters. To improve the image contrast, laser-range-gate has been widely applied to underwater optical imaging systems. The work of Katsev et al. (Appl.Opt. 38(33), 1999, pp. 6849–6858) shows that the contrast of a shadow image is greater than that of the object image. The present paper outlines a Monte Carlo based simulation method of image formation for underwater optical imaging. It is found that the contrast of a shadow image varies with gate starting depths. The angular distribution of multiply scattered photons is obtained via semi-analytical models (Shengfu Li et al., Opt.Commun. 381, 2016, pp. 43–47). The simulated results show that increasing the gate starting depth can reduce the highly backscattered photons, thus can improve the image contrast.

Słowa kluczowe

EN

underwater imaging; turbid media; Monte Carlo method; multiple scattering

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2018
• Tom: Vol. 48, nr 2
• Strony: 237--247
• Opis fizyczny: Bibliogr. 22 poz., rys.

Twórcy

autor

Li S.

• Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, 621900, China

autor

Wang R.

• Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, 621900, China

autor

Chen G.

• Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, 621900, China

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).