author = "Camara Neto, Vilar Fiuza da and Mesquita, Daniel Balbino de and 
                         Garcia, Renato Florentino and Campos, Mario Fernando Montenegro",
          affiliation = "Funda{\c{c}}{\~a}o Centro de An{\'a}lise, Pesquisa e 
                         Inova{\c{c}}{\~a}o Tecnol{\'o}gica - FUCAPI and {Universidade 
                         Federal de Minas Gerais} and {Universidade Federal de Minas 
                         Gerais} and {Universidade Federal de Minas Gerais}",
                title = "On the Design and Evaluation of a Precise Scalable Fiducial Marker 
            booktitle = "Proceedings...",
                 year = "2010",
               editor = "Bellon, Olga and Esperan{\c{c}}a, Claudio",
         organization = "Conference on Graphics, Patterns and Images, 23. (SIBGRAPI)",
            publisher = "IEEE Computer Society",
              address = "Los Alamitos",
             keywords = "fiducial markers, localization, pose estimation, augmented 
             abstract = "In this paper we present a planar fiducial marker system to be 
                         used with color cameras. Our system provides precise and robust 
                         full 3D pose estimation of the markers with superior accuracy when 
                         compared with many fiducial systems, while color information is 
                         used to provide more than \n{65000} distinct markers. In contrast 
                         with most color-based fiducial frameworks, ours requires no prior 
                         classification training nor color calibration other than a rough 
                         white balance adjustment and can perform reliably under 
                         illumination changes. Finally, we also provide means of detecting 
                         when poor illumination conditions will compromise marker 
                         identification, thus avoiding to evaluate a false marker 
                         identification. We present several experiments that show 
                         significant improvement in accuracy of estimation of both position 
                         and orientation when compared with traditional techniques.",
  conference-location = "Gramado",
      conference-year = "Aug. 30 - Sep. 3, 2010",
             language = "en",
           targetfile = "sibgrapi2010vilarnt-fiducial.pdf",
        urlaccessdate = "2020, Dec. 04"