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You are here: Home » Past Issues » Volume 8, 2013 - Number 1 » COMPARISON BETWEEN IHS-RGB TRANSFORMATIONS AND RATIO BANDS METHODS FROM LANDSAT IMAGERY IN THE RIO DE JANEIRO REGION, BRAZIL


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Thiago Peixoto de ARAUJO1, Fernando Machado de MELLO2 & Essaid BILAL3
1TPA Geologia e Meio Ambiente Ltda. Guaíba/RS, Brazil. (thiagopeixotoaraujo@gmail.com)
2 Departamento de Geociências – Universidade Federal Rural do Rio de Janeiro, Brazil. (fermamll@ufrrj.br)
3Ecole Nationale Supérieure des Mines, SPIN-EMSE, UMR5600, F42023, Saint Etienne, France (bilal@emse.fr)

COMPARISON BETWEEN IHS-RGB TRANSFORMATIONS AND RATIO BANDS METHODS FROM LANDSAT IMAGERY IN THE RIO DE JANEIRO REGION, BRAZIL

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Abstract:

The use of images by orbital remote sensing has shown great utility in environmental geology and engineering by mapping surveys and researches. The advantage of employing such remote sensing technique is due not only to its wider coverage area but also to its high spatial resolution quality, allowing a range of possibilities by means of operations among electromagnetic bands. The main purpose of this paper is to do comparisons among Landsat images of TM and ETM+ sensors, in Rio de Janeiro Region, Brazil, by means of color compositions that come from IHS-RGB Transformation and compositions that come from Ratios Band as well. Our studies point that ETM+images presented better results in landslides studies due to their better accuracy in comparison to TM images.


Keyword: Remote Sensing; IHS-RGB Transformation; Landslides, Rio de Janeiro; Environmental Geology


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