Data/hora: 11/06/2024 02:26:47

Biblioteca(s): | Embrapa Cerrados.
Data corrente: | 01/04/2005
Data da última atualização: | 01/04/2005
Autoria: | CARVALHO, A. P. F. de; CARVALHO JUNIOR, O. A. de; GUIMARAES, R. F.; MADEIRA NETTO, J. da S.; BUSTAMANTE, M. M. da C.
Título: | Medicao de cor de imagens hiperespectrais AVIRIS pelo sistema CIE (Comission Internationale d`Eclairage).
Ano de publicação: | 2001
Fonte/Imprenta: | In: SIMPOSIO BRASILEIRO DE SENSORIAMENTO REMOTO- SBSR, 10., 2001, Foz do Iguacu. [Anais...]. [S.l.]: SELPER: INPE, 2001?
Idioma: | Português
Conteúdo: | This work was developed in order to adapt and to test the employment of the color system CIE in AVIRIS hiperspectrais images with the purpose to distinguish vegetation patterns in different substrata. It was used as test area the Niquelandia, GO image with nickel ore concentration, where the distribution and characteristic of the vegetation presents a strong geologic control. The atmospheric correction was made by the Green method. After that it was made the estimate of the values CIE (x, y, z and Y), being generated the relative images to the red, green, blue colors and brightness, respectively. Among the generated color composition (xyz and xyY), the one that uses the brightness (xyY) it allowed a better differentiation of the vegetation than it happens on the ultramafic rocks. The use of the color concept provides a reduction of the spectral space and it allows a better interactivity with the analyst due to the visual approach. The use of the color concept in the Niquelandia area allowed the differentiation of vegetation patterns in soils originated from ultramafic and mafic rocks.
Palavras-Chave: | Imagem hiperespectral.
Thesagro: | Cor; Sensoriamento Remoto.
Categoria do assunto: | --
Registro original: | Embrapa Cerrados (CPAC)
Exemplares: | CPAC - (25834-1) - UPC - PL - -- - CRI5768 -  -  - DIS