Example-Based Face Shape Recovery Using the Zenith Angle of the Surface Normal

  • Mario Castelán
  • Ana J. Almazán-Delfín
  • Marco I. Ramírez-Sosa-Morán
  • Luz A. Torres-Méndez
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4827)

Abstract

We present a method for recovering facial shape using an image of a face and a reference model. The zenith angle of the surface normal is recovered directly from the intensities of the image. The azimuth angle of the reference model is then combined with the calculated zenith angle in order to get a new field of surface normals. After integration of the needle map, the recovered surface has the effect of mapped facial features over the reference model. Experiments demonstrate that for the lambertian case, surface recovery is achieved with high accuracy. For non-Lambertian cases, experiments suggest potential for face recognition applications.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • Mario Castelán
    • 1
  • Ana J. Almazán-Delfín
    • 2
  • Marco I. Ramírez-Sosa-Morán
    • 3
  • Luz A. Torres-Méndez
    • 1
  1. 1.CINVESTAV Campus Saltillo, Ramos Arizpe 25900, CoahuilaMéxico
  2. 2.Universidad Veracruzana, Facultad de Física e Inteligencia Artificial, Xalapa 91000, VeracruzMéxico
  3. 3.ITESM, Campus Saltillo, Saltillo 25270, CoahuilaMéxico

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