Title :
Sea bed maping in the lagoon of New Caledonia
Author :
Minghelli-Roman, Audrey ; Dupouy, Cécile ; Chevillon, Christophe ; Douillet, Pascal
Author_Institution :
Lab. LSEET, Univ. of South Toulon Var, Toulon, France
Abstract :
Features on the sea bed can be mapped from remote sensing multi/superspectral imagery provided that their effects on the measured reflectance spectrum can be rendered independent of those produced by the atmosphere and water column. The non-linear effect of water column light attenuation can then be corrected to obtain the absolute reflectance of the seabed. Light attenuation by the water column can be determined by simultaneously measuring the radiance of spectral reference on the seabed. Bathymetry can be determined by measuring the relative reflectance of standard features on the seabed in green and red light spectral bands. This article describes the methodology and results are presented in the lagoon of New Caledonia with MeRIS images.
Keywords :
bathymetry; geophysical image processing; oceanographic techniques; remote sensing; underwater optics; MeRIS images; New Caledonia lagoon; bathymetry; nonlinear effects; reflectance spectrum; remote sensing multispectral imagery; remote sensing superspectral imagery; sea bed features; sea bed maping; seabed absolute reflectance; water column light attenuation; Attenuation; Image color analysis; Optical imaging; Optical reflection; Optical sensors; Reflectivity; Sea measurements; MeRIS; Water column attenuation correction; bathymetry; seabed mapping;
Conference_Titel :
Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS), 2010 2nd Workshop on
Conference_Location :
Reykjavik
Print_ISBN :
978-1-4244-8906-0
Electronic_ISBN :
978-1-4244-8907-7
DOI :
10.1109/WHISPERS.2010.5594846