@InProceedings{AlmeidaSantCast:2017:CaEsRa,
               author = "Almeida, Robert Cardoso Fernandes and Santos, Thiago Batista dos 
                         and Castro, Ruy Morgado de",
          affiliation = "{} and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Caracteriza{\c{c}}{\~a}o Espectral e Radiom{\'e}trica de 
                         C{\^a}mera na faixa do Vis{\'{\i}}vel",
            booktitle = "Anais...",
                 year = "2017",
               editor = "Gherardi, Douglas Francisco Marcolino and Arag{\~a}o, Luiz 
                         Eduardo Oliveira e Cruz de",
                pages = "8060--8067",
         organization = "Simp{\'o}sio Brasileiro de Sensoriamento Remoto, 18. (SBSR)",
            publisher = "Instituto Nacional de Pesquisas Espaciais (INPE)",
              address = "S{\~a}o Jos{\'e} dos Campos",
             abstract = "Nowadays, with the cheapness and the reliability of unmanned 
                         aerial vehicles (ARPs or drones) the use of small sensors has been 
                         gaining space. With this, high-resolution commercial digital 
                         cameras are being used to obtain images in remote sensing. 
                         However, to use this data quantitatively it is necessary that 
                         these sensors be known. Therefore, the objective of this work was 
                         to propose a methodology to characterize, spectral and 
                         radiometric, commercial digital cameras that operate in the 
                         visible region of the electromagnetic spectrum. Thus, in the 
                         Spectral Characterization the camera sensitivity is determined for 
                         each wavelength of the incident electromagnetic radiation. In the 
                         Radiometric Characterization, a relation is established between 
                         the digital numbers obtained in an image, when the camera is 
                         illuminated by a source of electromagnetic radiation whose 
                         radiance is known. To test the proposed methodology the 
                         characterizations were performed for a Canon camera. For this, the 
                         facilities of the LaRaC, of the IEAv, were used. The spectral 
                         characterization was performed by the indirect method using a 
                         monochromator, a reference sensor with spectral response function 
                         calibrated. In the radiometric characterization, the relationship 
                         between radiance and digital numbers of the camera was evaluated 
                         using an integrating sphere and a spectroradiometer. The results 
                         obtained for the spectral characterization are consistent with the 
                         expected. The radiometric characterization showed that the 
                         behavior of the radiance as a function of digital number does not 
                         have a linear behavior.",
  conference-location = "Santos",
      conference-year = "28-31 maio 2017",
                 isbn = "978-85-17-00088-1",
                label = "60176",
             language = "pt",
         organisation = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                  ibi = "8JMKD3MGP6W34M/3PSMGT4",
                  url = "http://urlib.net/ibi/8JMKD3MGP6W34M/3PSMGT4",
           targetfile = "60176.pdf",
                 type = "Radiometria e sensores",
        urlaccessdate = "27 abr. 2024"
}