NDLI: What is the value added of 4 bands within the submetric remote sensing of tropical coastscape? QuickBird-2 vs WorldView-2

Content Provider	IEEE Xplore Digital Library
Author	Collin, A. Planes, S.
Copyright Year	2011
Description	Author affiliation: Centre of Tropical and Mediterranean Biology and Ecology, USR 3278 CNRS-EPHE CRIOBE BP 1013, 98729 Papetoai, Moorea, French Polynesia (Collin, A.; Planes, S.)
Abstract	The seamless tropical coastscape was investigated in comparing remotely-sensed by-products derived from the spaceborne 8 band WorldView-2 (WV-2) and the 4 band QuickBird-2-like (QB-2-like) sensors. The value added of the 4 bands allowed both land and water surveys to be significantly improved. The WV-2-derived NDVI means were more correlated $(R^{2}=0.96)$ with in situ “greenness” than those of QB-2-like $(R^{2}=0.89),$ and the WV-2-derived NDVI standard deviations were systematically inferior to those of QB-2-like. The cross-validation of the bathymetric products indicated a better performance of WV-2 $(R^{2}=0.76;$ maximum depth, 9.4 m) than QB-2-like $(R^{2}=0.74;$ maximum depth, 8.9 m). Results of classification showed that land cover was best mapped by WV-2 with the Neural Network algorithm (8 classes, kappa=0.92), and seafloor cover (resulting from an underwater radiative transfer model) was best classified by WV-2 trained with Support Vector Machine (6 classes, kappa=0.76). These improvements were then discussed based upon their spectral properties.
Starting Page	2165
Ending Page	2168
File Size	452096
Page Count	4
File Format	PDF
ISBN	9781457710032
ISSN	21537003
e-ISBN	9781457710056
DOI	10.1109/IGARSS.2011.6049595
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-24
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Sea measurements Support vector machines Artificial neural networks Reflectivity Sensors Attenuation Image edge detection Moorea WorldView-2 QuickBird-2 NDVI Land cover Bathymetry extraction Seafloor cover
Content Type	Text
Resource Type	Article

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