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A Method for Re-illuminating Faces from a Single Image

  • Mario Castelán
  • Edwin R. Hancock
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3287)

Abstract

In this paper we propose a local-shape based method for correcting shape-from-shading information for raw surface height recovery of faces aiming to generate differently illuminated versions of a face. The underpinning idea comes from the observation that subtle changes in the elements of a gradient field can cause notable changes in its integrated surface. A new gradient field is calculated by modifying its orientations in accordance with critical points on the surface and local shape indicators. A raw height map is then calculated by integrating such field. Experiments show that altering the directions of a surface normal field of a face can be enough to generate differently illuminated fixed-pose versions of a face from a single image.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Mario Castelán
    • 1
  • Edwin R. Hancock
    • 1
  1. 1.Dept. of Computer ScienceUniversity of YorkYorkUK

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