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Misalignment-Robust Face Recognition

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5 Author(s)
Shuicheng Yan ; Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore ; Huan Wang ; Jianzhuang Liu ; Xiaoou Tang
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Subspace learning techniques for face recognition have been widely studied in the past three decades. In this paper, we study the problem of general subspace-based face recognition under the scenarios with spatial misalignments and/or image occlusions. For a given subspace derived from training data in a supervised, unsupervised, or semi-supervised manner, the embedding of a new datum and its underlying spatial misalignment parameters are simultaneously inferred by solving a constrained ??1 norm optimization problem, which minimizes the ??1 error between the misalignment-amended image and the image reconstructed from the given subspace along with its principal complementary subspace. A byproduct of this formulation is the capability to detect the underlying image occlusions. Extensive experiments on spatial misalignment estimation, image occlusion detection, and face recognition with spatial misalignments and/or image occlusions all validate the effectiveness of our proposed general formulation for misalignment-robust face recognition.

Published in:

Image Processing, IEEE Transactions on  (Volume:19 ,  Issue: 4 )
Biometrics Compendium, IEEE
RFIC Virtual Journal, IEEE
RFID Virtual Journal, IEEE