Synonyms
Face matching; Face registration
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 model, 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 (as...
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Gu, L., Kanade, T. (2015). Face Alignment. In: Li, S.Z., Jain, A.K. (eds) Encyclopedia of Biometrics. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-7488-4_186
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DOI: https://doi.org/10.1007/978-1-4899-7488-4_186
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