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Dissolved Organic Matters Impact on Color Reconstruction of Underwater Images
Högskolan i Gävle, Institutionen för matematik, natur- och datavetenskap, Ämnesavdelningen för datavetenskap.
Högskolan i Gävle, Institutionen för matematik, natur- och datavetenskap, Ämnesavdelningen för matematik och statistik. (matematik)
2005 (engelsk)Inngår i: Proceedings of the 14th Scandinavian Conference on Image Analysis, 2005, s. 1148-1156Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

The natural properties of water column usually affect underwater imagery by supressing high-energy light. In application such as color correction of underwater images estimation of water column parameters is crucial. Diffuse attenuation coefficients are estimated and used for further processing of underwater taken data. The coeeficients will give information on how fast light of different wavelengths decreases with increasing depth. Based on the exact depth measurements and data from a spectrometrer the calculation of downwelling irradiance will be done. Chlorophyll concentration and a yellow substance factor contribute to a great variety of values of attenuation coefficients at different depth. By taking advantage of variations in depth, a method is presented to estimate the influence of dissolved organic matters and chlorophyll on color correction. Attenuation coefficients that depends on concentration of dissolved organic matters in water gives an indication on how well any spectral band is suited for color correction algorithm.

sted, utgiver, år, opplag, sider
2005. s. 1148-1156
Identifikatorer
URN: urn:nbn:se:hig:diva-2453ISBN: 978-3-540-26320-3 (tryckt)OAI: oai:DiVA.org:hig-2453DiVA, id: diva2:119115
Konferanse
Scandinavian Conference on Image Analysis (SCIA). Joensuu, Finland, 19-22 juni 2005.
Tilgjengelig fra: 2007-04-30 Laget: 2007-04-30 Sist oppdatert: 2018-03-13bibliografisk kontrollert

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