Memorias de investigación
Ponencias en congresos:
Refined facial disparity maps for automatic creation of 3D avatars
Año:2012
Áreas de investigación
  • Ingenierías,
  • Procesado y análisis de la señal
Datos
Descripción
We propose a new method to automatically refine a facial disparity map obtained with standard cameras and under conventional illumination conditions by using a smart combination of traditional computer vision and 3D graphics techniques. Our system inputs two stereo images acquired with standard (calibrated) cameras and uses dense disparity estimation strategies to obtain a coarse initial disparity map, and SIFT to detect and match several feature points in the subject's face. We then use these points as anchors to modify the disparity in the facial area by building a Delaunay triangulation of their convex hull and interpolating their disparity values inside each triangle. We thus obtain a refined disparity map providing a much more accurate representation of the the subject's facial features. This refined facial disparity map may be easily transformed, through the camera calibration parameters, into a depth map to be used, also automatically, to improve the facial mesh of a 3D avatar to match the subject's real human features.
Internacional
Si
Nombre congreso
IS&T/SPIE Int. Conf. on 3D Image Processing (3DIP) and Applications
Tipo de participación
960
Lugar del congreso
San Francisco (CA), USA
Revisores
Si
ISBN o ISSN
9780819489371
DOI
10.1117/12.908259
Fecha inicio congreso
24/01/2012
Fecha fin congreso
26/01/2012
Desde la página
1
Hasta la página
8
Título de las actas
Proc. SPIE vol. 8290
Esta actividad pertenece a memorias de investigación
Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Grupo de Tratamiento de Imágenes (GTI)