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Proceedings Paper

Spectral classifying base on color of live corals and dead corals covered with algae
Author(s): Nurjannah Nurdin; Teruhisa Komatsu; Laurent Barille; M. Akbar A. S.; Shuhei Sawayama; Muh. Nur Fitrah; Hermansyah Prasyad
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Paper Abstract

Pigments in the host tissues of corals can make a significant contribution to their spectral signature and can affect their apparent color as perceived by a human observer. The aim of this study is classifying the spectral reflectance of corals base on different color. It is expected that they can be used as references in discriminating between live corals, dead coral covered with algae Spectral reflectance data was collected in three small islands, Spermonde Archipelago, Indonesia by using a hyperspectral radiometer underwater. First and second derivative analysis resolved the wavelength locations of dominant features contributing to reflectance in corals and support the distinct differences in spectra among colour existed. Spectral derivative analysis was used to determine the specific wavelength regions ideal for remote identification of substrate type. The analysis results shown that yellow, green, brown and violet live corals are spectrally separable from each other, but they are similar with dead coral covered with algae spectral.

Paper Details

Date Published: 7 May 2016
PDF: 10 pages
Proc. SPIE 9878, Remote Sensing of the Oceans and Inland Waters: Techniques, Applications, and Challenges, 987811 (7 May 2016); doi: 10.1117/12.2227297
Show Author Affiliations
Nurjannah Nurdin, Hasanuddin Univ. (Indonesia)
Ctr. for Regional Development and Spatial Information
Teruhisa Komatsu, The Univ. of Tokyo (Japan)
Laurent Barille, Lab. MMS, Univ. de Nantes (France)
M. Akbar A. S., Ctr. for Regional Development and Spatial Information (Indonesia)
Shuhei Sawayama, The Univ. of Tokyo (Japan)
Muh. Nur Fitrah, Ctr. for Regional Development and Spatial Information (Indonesia)
Hermansyah Prasyad, Ctr. for Regional Development and Spatial Information (Indonesia)


Published in SPIE Proceedings Vol. 9878:
Remote Sensing of the Oceans and Inland Waters: Techniques, Applications, and Challenges
Robert J. Frouin; Satheesh C. Shenoi; K. H. Rao, Editor(s)

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