author = "Ceolin, Simone Regina and Hancock, Edwin R.",
          affiliation = "{Centro Universit{\'a}rio Franciscano} and {University of York}",
                title = "Computing gender difference using Fisher-Rao metric from facial 
                         surface normals",
            booktitle = "Proceedings...",
                 year = "2012",
               editor = "Freitas, Carla Maria Dal Sasso and Sarkar, Sudeep and Scopigno, 
                         Roberto and Silva, Luciano",
         organization = "Conference on Graphics, Patterns and Images, 25. (SIBGRAPI)",
            publisher = "IEEE Computer Society",
              address = "Los Alamitos",
             keywords = "Fisher-Rao metric, surface normal, shape-from-shading.",
             abstract = "The aim in this paper is to explore whether the Fisher-Rao metric 
                         can be used to characterise the shape changes due to gender 
                         difference. We work using a 2.5D representation based on facial 
                         surface normals (or facial needle-maps) for gender classification. 
                         The needle-map is a shape representation which can be acquired 
                         from 2D intensity images using shape-from-shading (SFS). Using the 
                         von-Mises Fisher distribution, we compute the elements of the 
                         Fisher information matrix, and use this to compute geodesic 
                         distance between fields of surface normals to construct a 
                         shape-space. We embed the fields of facial surface normals into a 
                         low dimensional pattern space using a number of alternative 
                         methods including multidimensional scaling, heat kernel embedding 
                         and commute time embedding. We present results on clustering the 
                         embedded faces using the Max Planck and EAR database.",
  conference-location = "Ouro Preto",
      conference-year = "Aug. 22-25, 2012",
             language = "en",
           targetfile = "paper_sibgrapi_2012.pdf",
        urlaccessdate = "2021, Jan. 24"