Encyclopedia of Biometrics

2009 Edition
| Editors: Stan Z. Li, Anil Jain

Face Alignment

  • Leon Gu
  • Takeo Kanade
Reference work entry
DOI: https://doi.org/10.1007/978-0-387-73003-5_186

Synonyms

Definition

Face alignment is a computer vision technology for identifying the geometric structure of human faces in digital images. Given the location and size of a face, it automatically determines the shape of the face components such as eyes and nose. A face alignment program typically operates by iteratively adjusting a  deformable models, which encodes the prior knowledge of face shape or appearance, to take into account the low-level image evidences and find the face that is present in the image.

Introduction

The ability of understanding and interpreting facial structures is important for many image analysis tasks. Suppose that, if we want to identify a person from a surveillance camera, a natural approach would be running the face image of the person through a database of known faces, examining the differences and identifying the best match. However, simply subtracting one image from another would not yield the desirable differences...
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References

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Leon Gu
    • 1
  • Takeo Kanade
    • 1
  1. 1.Carnegie Mellon UniversityPittsburghUSA