Correcting underwater images distorted by surface waves
Autor: | V. Yu. Osadchy, I. M. Levin, V. V. Savchenko |
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Rok vydání: | 2008 |
Předmět: | |
Zdroj: | Oceanology. 48:780-783 |
ISSN: | 1531-8508 0001-4370 |
DOI: | 10.1134/s0001437008060039 |
Popis: | An experiment on the correction of underwater images distorted by waves at the air-water interface was conducted using a laboratory modeling installation intended for experimental examination of light and image transfer across a water surface covered with waves. A digital color camera was used for the simultaneous formation of the image of the underwater test object through the disturbed surface and of the superimposed glitter pattern. Both images are spectrally separated. Processing the glitter pattern makes it possible to obtain the values of the surface slopes at a limited number of points and to use these slopes for retrieval of image fragments. The total corrected image is formed by integration of about 300 partially corrected fragments. This image is close to that obtained through a wave-free water surface. |
Databáze: | OpenAIRE |
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