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Definition
Face alignment refers to transforming a given face image to a canonical coordinate system. This is done by automatically detecting facial fiducial points also called facial landmarks or keypoints and then using standard transformation methods such as affine/similarity transformation. These fiducial points are predefined points on the face image which are mainly located or centered around facial parts such as the eyes, nose, chin, and mouth corners as shown in Fig. 1.
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Kumar, A., Chellappa, R. (2020). Face Alignment. In: Computer Vision. Springer, Cham. https://doi.org/10.1007/978-3-030-03243-2_879-1
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DOI: https://doi.org/10.1007/978-3-030-03243-2_879-1
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