@InProceedings{LeonardiAlFoToAlOl:2012:ElAcAs,
               author = "Leonardi, Fernando and Almeida, Cl{\'a}udia Maria de and Fonseca, 
                         Leila Maria Garcia and Tom{\'a}s, L{\'{\i}}via Rodrigues and 
                         Albuquerque, Paulo Cesar Gurgel de and Oliveira, Cleber 
                         Gonz{\'a}les de",
          affiliation = "Geopixel Geotechnologies Consulting and Service Ltda., S{\~a}o 
                         Jos{\'e} dos Campos, SP, Brazil and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and Geopixel Geotechnologies Consulting and 
                         Service Ltda., S{\~a}o Jos{\'e} dos Campos, SP, Brazil",
                title = "Elevation Accuracy Assessment of a DSM and DTM Generated for an 
                         Urban Area from the ALTM 2025 Airborne Laser Scanning Sensor",
            booktitle = "Proceedings...",
                 year = "2012",
                pages = "91--95",
         organization = "International Workshop on Earth Observation and Remote Sensing 
                         Applications, 2. (EORSA).",
            publisher = "Peking University",
                 note = "Setores de Atividade: Pesquisa e desenvolvimento 
                         cient{\'{\i}}fico, Administra{\c{c}}{\~a}o p{\'u}blica, 
                         defesa e seguridade social.",
             keywords = "Accuracy analysis, Accuracy assessment, Accuracy test, Airborne 
                         Laser scanning, Algebraic manipulations, Class A, Control point, 
                         Digital elevation model, Digital surface models, Digital terrain 
                         model, Laser scanning, Precision analysis, Scientific literature, 
                         Statistical significance, Trend analysis, Urban areas, Laser 
                         applications, Mapping, Observatories, Optical radar, Remote 
                         sensing, Statistical tests, Surveying.",
             abstract = "The assessment of elevation accuracy of digital elevation models 
                         (DEM), which comprise digital surface models (DSM) and digital 
                         terrain models (DTM), has become a recurrent theme in the 
                         scientific literature in the latest decades. Accuracy tests are 
                         specifically based on a 10% level of statistical significance and 
                         they comprise both trend and precision analyses. Both tests were 
                         applied to data obtained from an air survey accomplished with the 
                         ALTM 2025 laser scanning sensor for a central sector of Uberlandia 
                         city, Brazil. The statistical tests for the DSM and DTM 
                         demonstrated that the mean elevation error respectively lay around 
                         0,41 m and 0,48 m, and the RMSE about 0,48 m and 0,47 m. In both 
                         cases, the presence of trend in the H direction was observed, 
                         revealing systematic influences in this component. This trend was 
                         further removed by means of algebraic manipulations. The precision 
                         analysis revealed that the DSM and DTM were compatible with a 
                         1:5,000 scale and were up to the standard of the highest 
                         cartographic accuracy category (class A - PEC).",
  conference-location = "Shangai",
      conference-year = "8-11 June 2012",
                  doi = "10.1109/EORSA.2012.6261142",
                  url = "http://dx.doi.org/10.1109/EORSA.2012.6261142",
                 isbn = "9781467319461",
                label = "lattes: 1861914973833506 2 LeonardiAlFoToAlOL:2012:ElAcAs",
             language = "en",
           targetfile = "Leonardi_et_al_2012EORSA.pdf",
                  url = "http://www.eorsa2012.org/program.html",
        urlaccessdate = "07 maio 2024"
}