@InProceedings{BensebaaBanoFons:2004:OnSpRe,
               author = "Bensebaa, Kamel and Banon, Gerald Jean Francis and Fonseca, Leila 
                         Maria Garcia",
          affiliation = "Aluno do curso de p{\'o}s-gradua{\c{c}}{\~a}o do INPE em 
                         Computa{\c{c}}{\~a}o Aplicada, (CAP) and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)}",
                title = "On-orbit spatial resolution estimation of CBERS-1 CCD imaging 
                         system from bridge images",
            booktitle = "Proceedings...",
                 year = "2004",
               editor = "Altan, Orhan",
                pages = "36--41",
         organization = "ISPRS Congress, 20.",
            publisher = "International Society for Photogrammetry and Remote Sensing",
              address = "Istanbul",
             keywords = "CCD camera, spatial resolution, estimation, modelling, simulation, 
                         measurements, targets.",
             abstract = "The first China-Brazil Earth Resources Satellite (CBERS) was 
                         launched in 1999 and recently was substituted by CBERS-2. CBERS-1 
                         and CBERS-2 have the same specifications and carry three sensors 
                         which combine features that are specially designed to cover the 
                         broad range of space and time scales involved in the monitoring 
                         and preservation of the ecosystem: Wide Field Imager (WFI), High 
                         Resolution CCD Camera (CCD) and Infrared Multispectral Scanner 
                         (IRMSS). In general, the imaging systems cause a blurring due to 
                         the cumulative effects of the instrumental optics (diffraction, 
                         aberrations, focusing error) and image motion induced by the 
                         movement of the satellite during imaging. This blurring can be 
                         understood by describing the imaging system in terms of the Point 
                         Spread Function (PSF). For a satellite sensor, the knowledge of 
                         the point spread function is of fundamental importance since it 
                         enables an objective assessment of spatial resolution through the 
                         parameter known as EIFOV (Effective Instantaneous Field of View). 
                         This paper describes an original approach to estimate the spatial 
                         resolution of the CBERS-1 CCD camera. The imaging system point 
                         spread function is modeled as a separable gaussian function. The 
                         PSF is estimated using images of Rio-Niteroi Bridge in Rio de 
                         Janeiro (Brazil) and the Lake Pontchartrain Causeway in Louisiana 
                         (United States). The results showed that the spatial resolution in 
                         across-track direction is outside the specifications for all bands 
                         while the spatial resolution in along-track direction is within 
                         the specification for all bands, except the band 4.",
  conference-location = "Istanbul, Turkey",
      conference-year = "July 12-23, 2004",
           copyholder = "SID/SCD",
            isbn/issn = "1682-1750",
             language = "en",
           targetfile = "7.pdf",
                 type = "On-line",
                  url = "http://www.isprs.org/proceedings/XXXV/congress/comm1/papers/7.pdf",
               volume = "XXXV-B1",
        urlaccessdate = "2024, May 13"
}