Turbulence mitigation methods for sea scenario imaging

Dijk, J. C. van; Schutte, Klamer; Nieuwenhuizen, Robert P. J.

doi:10.1117/2.1201609.006732

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2022

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“…Aside from [8], all of these techniques measure AoA fluctuations from feature displacements on the image plane from a distant object (considering one or two image pixels), and they do so by examining gray-scale video frames. However, color variability is also a relevant parameter providing insight about the characteristics of optical turbulence [9,10].…”

Section: Introductionmentioning

confidence: 99%

Color mixing in targets seen through turbulence

Nuñez¹,

Barille²,

Pérez³

2022

J. Opt.

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We propose a novel imaging technique for assessing turbulence strength based on the color ﬂuctuations of remote targets. Their chromatic changes, due to color mixing produced by the atmospheric optical turbulence, is characterized. We take advantage of a RGB Fourier transform-based color space to analyze the chromatic information on target images; then, through a model of primary color overlays, a chromatic shift measure is deﬁned by the statistical dispersion of pixel colors. It is shown that such color changes can be related to the strength of refractive index ﬂuctuations deﬁned by the structure constant, C2n.

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Section: Introductionmentioning

confidence: 99%