@InProceedings{MelloRudoVieiAgui:2009:NoPrDi,
               author = "Mello, M{\'a}rcio Pupin de and Rudorff, Bernardo Friedrich 
                         Theodor and Vieira, Carlos Ant{\^o}nio Oliveira and Aguiar, 
                         Daniel Alves de",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais - INPE} and {Instituto 
                         Nacional de Pesquisas Espaciais - INPE} and {Universidade Federal 
                         de Vi{\c{c}}osa - UFV} and {Instituto Nacional de Pesquisas 
                         Espaciais - INPE}",
                title = "Comportamento espectro-temporal da cana-de-a{\c{c}}{\'u}car: uma 
                         nova proposta na distribui{\c{c}}{\~a}o espacial dos pontos de 
                         controle utilizados na interpola{\c{c}}{\~a}o de 
                         superf{\'{\i}}cies de resposta espectro-temporais",
            booktitle = "Anais...",
                 year = "2009",
               editor = "Epiphanio, Jos{\'e} Carlos Neves and Galv{\~a}o, L{\^e}nio 
                         Soares",
                pages = "271--278",
         organization = "Simp{\'o}sio Brasileiro de Sensoriamento Remoto, 14. (SBSR)",
            publisher = "Instituto Nacional de Pesquisas Espaciais (INPE)",
              address = "S{\~a}o Jos{\'e} dos Campos",
             keywords = "remote sensing, spectral-temporal behavior, multitemporal image 
                         classification, control points, sensoriamento remoto, 
                         comportamento espectro-temporal, classifica{\c{c}}{\~a}o 
                         multitemporal de imagens, pontos de controle.",
             abstract = "The major attribute of remotely sensed images to observe the land 
                         surface is the spectral-temporal characteristic which is paramount 
                         for accurate agricultural crop area classification. Agricultural 
                         targets present a dynamic spectral-temporal behavior that is very 
                         helpful to discriminate among different crops in classification 
                         procedures. However, there are only few methods that address this 
                         issue in depth. One promising method is the spectral-temporal 
                         response surfaces (STRS) approach which uses control points to 
                         define response surfaces based on reflectance observed for 
                         specific targets of interest at specific spectral bands and at 
                         specific dates. In the present work was analyzed the 
                         spectral-temporal behavior of sugarcane fields harvested with and 
                         without straw burning prior to harvest. The information about 
                         sugarcane harvested with and without straw burning is relevant for 
                         government control to evaluate the effectiveness of the effort to 
                         gradually reduce the harvest practice of sugarcane burning which 
                         should cease by 2014 for fields that can be mechanical cultivated. 
                         The major objective of this study is to improve the STRS 
                         interpolation method. Therefore, two methods for the spatial 
                         distribution of the control points were compared. Three sugarcane 
                         classes (non-burned cane, burned cane and non-harvested cane) were 
                         investigated using 5,000 samples for each class and six 
                         Landsat5/TM images acquired from April to September 2007 to 
                         interpolate the STRS. Best result was obtained using the method of 
                         equidistant values distribution for the wavelength axis. With this 
                         new interpolation method it is expected to largely improve the 
                         classification of sugarcane fields harvested with different 
                         harvest practices.",
  conference-location = "Natal",
      conference-year = "25-30 abr. 2009",
                 isbn = "978-85-17-00044-7",
             language = "pt",
         organisation = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                  ibi = "dpi.inpe.br/sbsr@80/2008/11.17.19.02",
                  url = "http://urlib.net/ibi/dpi.inpe.br/sbsr@80/2008/11.17.19.02",
           targetfile = "271-278.pdf",
                 type = "Agricultura",
        urlaccessdate = "30 abr. 2024"
}