Metodología de remallado basado en la curvatura y orientado a modelos 3D del rostro humano

Remeshing techniques seek to modify a mesh in order to adapt it to an specific application. This work proposes a remeshing methodology specialized in the human face, whose purpose is to reduce the number of faces and vertices that requires the mesh, keeping the characteristics of the human anatomy....

Full description

Autores:
Jinete, Marco; Universidad Nacional de Colombia Sede Bogotá
Prieto, Flavio; Universidad Nacional de Colombia Sede Bogotá
Salazar, Augusto; Instituto Tecnológico Metropolitano, ITM
Tipo de recurso:
Article of journal
Fecha de publicación:
2015
Institución:
Universidad de Medellín
Repositorio:
Repositorio UDEM
Idioma:
spa
OAI Identifier:
oai:repository.udem.edu.co:11407/1828
Acceso en línea:
http://hdl.handle.net/11407/1828
Palabra clave:
remeshing
curvature lines
facial antropometry
remallado
líneas de curvatura
antropometría facial
Rights
License
http://creativecommons.org/licenses/by-nc-sa/4.0/
Description
Summary:Remeshing techniques seek to modify a mesh in order to adapt it to an specific application. This work proposes a remeshing methodology specialized in the human face, whose purpose is to reduce the number of faces and vertices that requires the mesh, keeping the characteristics of the human anatomy. Curvature information that highlights the intrinsic anisotropy of natural geometry or geometry of human origin is used to accomplish this. Results were polygonal anisotropic meshes, composed mainly of quadrilaterals, with less than 50% of the points and faces of the initial mesh, that maintain the anatomical features for models of the face in a neutral expression, or expressions of happiness, disgust, fear, angry, surprise, and sadness. The methodology was validated with models from the BU-3DFE database, and the quality of the obtained results were evaluated against the remeshing achieved when a technique of simplification based on quadric error metrics is used.