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Proceedings Paper

Algorithm for the estimation of oceanic chlorophyll concentration from hyperspectral data through purpose-oriented feature extraction
Author(s): Sadao Fujimura; Senya Kiyasu
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Paper Abstract

Remotely sensed data are used for global estimation of oceanic chlorophyll concentration, from which biomass productivity in ocean is estimated. A conventional (Gordon's) method uses the ratio of green to blue bands as an indicator of the chlorophyll concentration. This method is not accurate, especially when phytoplankton is not dominant. We devise a method through our purpose-oriented feature extraction method which is much more accurate than the conventional method even when the other components than chlorophyll are not negligible. The basic idea of our method is to fuse each dimension of hyper-spectral data to produce a value which describes the chlorophyll concentration almost independent of other components. We confirmed by simulation that our algorithm gives two to ten times more accurate results than the conventional method does. It is another prominent feature that our method is wholly systematic, and widely applicable.

Paper Details

Date Published: 14 December 1999
PDF: 4 pages
Proc. SPIE 3871, Image and Signal Processing for Remote Sensing V, (14 December 1999); doi: 10.1117/12.373269
Show Author Affiliations
Sadao Fujimura, Univ. of Tokyo (Japan)
Senya Kiyasu, Univ. of Tokyo (Japan)

Published in SPIE Proceedings Vol. 3871:
Image and Signal Processing for Remote Sensing V
Sebastiano Bruno Serpico, Editor(s)

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