Vectorizing Face Images by Interleaving Shape and Texture Computations

  • Authors:
  • David Beymer

  • Affiliations:
  • -

  • Venue:
  • Vectorizing Face Images by Interleaving Shape and Texture Computations
  • Year:
  • 1995

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Abstract

The correspondence problem in computer vision is basically a matching task between two or more sets of features. In this paper, we introduce a vectorized image representation, which is a feature-based representation where correspondence has been established with respect to a reference image. This representation has two components: (1) shape, or (x, y) feature locations, and (2) texture, defined as the image grey levels mapped onto the standard reference image. This paper explores an automatic technique for ``vectorizing'''' face images. Our face vectorizer alternates back and forth between computation steps for shape and texture, and a key idea is to structure the two computations so that each one uses the output of the other. A hierarchical coarse-to-fine implementation is discussed, and applications are presented to the problems of facial feature detection and registration of two arbitrary faces.