Eye detection using a deformable template in static images

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2008

Autores

Fernando Jorge Soares Carvalho (Autor) Outra; João Manuel Ribeiro da Silva Tavares (Autor) FEUP

Ata de Conferência Internacional

Título: VIPimage 2007

Páginas: 209-215

VIPimage - I ECCOMAS Thematic Conference on Computational Vision and Medical Image Processing Taylor & Francis, ISBN: 978-0-415-45777-4, Editors: João Manuel R. S. Tavares and R. M. Natal Jorge

Faculdade de Engenharia da Universidade do Porto, Porto, Portugal, 17-19 October 2007

Indexação

ISI Web of Knowledge - 0 Citações

ISI Web of Science

Scopus - 4 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia mecânica

CORDIS: Ciências Tecnológicas > Tecnologia > Tecnologia médica

Outras Informações

ID Authenticus: P-004-5KT

Abstract (EN): In this paper, we present a methodology that uses a deformable template to detect the human eye in static images. Geometrically, the used template is represented by two distinct entities: a circumference, that defines the iris contour; and two parabolas, one concave and other convex, that define respectively, the above and below contours of the eye. The geometrical shape of the used template is controlled by a set of eleven control parameters that allows its change in scale, position and orientation. To process the matching between the eye, represented in the input image, and the template used, we consider information obtained from four energy fields. Then, to process the dynamic update of the template parameters, we use an energy function, based on those energy fields, that characterizes the cost of the template deformation. During each of the seven processing phases, we search iteratively for the best combination parameters values that minimize the energy cost of the template deformation. In this paper, we illustrate the functionality of this method by presenting some experimental results, and present some conclusions and perspectives of future work as well.

Idioma: Inglês

Tipo (Avaliação Docente): Científica