Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

STARS: A New Method for Multitemporal Remote Sensing

Texto completo
Autor(es):
Mello, Marcio Pupin [1] ; Vieira, Carlos A. O. [2] ; Rudorff, Bernardo F. T. [1] ; Aplin, Paul [3] ; Santos, Rafael D. C. [4] ; Aguiar, Daniel A. [1]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] Natl Inst Space Res INPE, Remote Sensing Div, BR-12227010 Sao Jose Dos Campos, SP - Brazil
[2] Univ Fed Santa Catarina, Geosci Dept, BR-88040900 Florianopolis, SC - Brazil
[3] Univ Nottingham, Sch Geog, Nottingham NG7 2RD - England
[4] Natl Inst Space Res INPE, Associated Lab Comp & Appl Math LAC, BR-12227010 Sao Jose Dos Campos, SP - Brazil
Número total de Afiliações: 4
Tipo de documento: Artigo Científico
Fonte: IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING; v. 51, n. 4, 1, SI, p. 1897-1913, APR 2013.
Citações Web of Science: 14
Resumo

There is great potential for the development of remote sensing methods that integrate and exploit both multispectral and multitemporal information. This paper presents a new image processing method: Spectral-Temporal Analysis by Response Surface (STARS), which synthesizes the full information content of a multitemporal-multispectral remote sensing image data set to represent the spectral variation over time of features on the Earth's surface. Depending on the application, STARS can be effectively implemented using a range of different models {[}e. g., polynomial trend surface (PTS) and collocation surface (CS)], exploiting data from different sensors, with varying spectral wavebands and acquiring data at irregular time intervals. A case study was used to test STARS, evaluating its potential to characterize sugarcane harvest practices in Brazil, specifically with and without preharvest straw burning. Although the CS model presented sharper and more defined spectral-temporal surfaces, abrupt changes related to the sugarcane harvest event were also well characterized with the PTS model when a suitable degree was set. Orthonormal coefficients were tested for both the PTS and CS models and performed more accurately than regular coefficients when used as input for three evaluated classifiers: instance based, decision tree, and neural network. Results show that STARS holds considerable potential for representing the spectral changes over time of features on the Earth's surface, thus becoming an effective image processing method, which is useful not only for classification purposes but also for other applications such as understanding land-cover change. The STARS algorithm can be found at www.dsr.inpe.br/similar to mello. (AU)

Processo FAPESP: 08/56252-0 - Environmental and socioeconomic impacts associated with the production and consumption of sugarcane ethanol in south central Brazil
Beneficiário:Evlyn Márcia Leão de Moraes Novo
Linha de fomento: Auxílio à Pesquisa - Programa BIOEN - Temático