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Dissolved Organic Matters Impact on Colour
Uppsala University, Interfaculty Units, Centre for Image Analysis. Teknisk-naturvetenskapliga vetenskapsområdet, Mathematics and Computer Science, Department of Information Technology, Computerized Image Analysis.
KTH. (Department of Computer and Systems Sciences)
Uppsala University, Interfaculty Units, Centre for Image Analysis. Teknisk-naturvetenskapliga vetenskapsområdet, Mathematics and Computer Science, Department of Information Technology, Computerized Image Analysis.
Uppsala University, Interfaculty Units, Centre for Image Analysis. Teknisk-naturvetenskapliga vetenskapsområdet, Mathematics and Computer Science, Department of Information Technology, Computerized Image Analysis.
2005 (English)In: Image Analysis: 14th Scandinavian Conference, SCIA 2005, 2005, 1148-1156 p.Conference paper, Published paper (Refereed)
Abstract [en]

The natural properties of water column usually affect under-water

imagery by suppressing 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 coefficients will give information on how fast light of different wavelengths decreases with increasing depth. Based on the exact depth measurements and data from a spectrometer 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 in uence 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.

Place, publisher, year, edition, pages
2005. 1148-1156 p.
National Category
Computer Vision and Robotics (Autonomous Systems)
Identifiers
URN: urn:nbn:se:uu:diva-76159ISBN: 3-540-26320-9 (print)OAI: oai:DiVA.org:uu-76159DiVA: diva2:104071
Available from: 2006-02-27 Created: 2006-02-27 Last updated: 2017-02-08

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Åhlén, JuliaLindell, TommyBengtsson, Ewert

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