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- W2116101094 abstract "Face's tri-dimensional shape represents a highly discriminating yet challenging biometric identifier due to different issues, some of which related to capture, alignment and normalization. This paper presents an improved normal map based face recognition approach, which relies on a novel method to automatically align a captured 3D face mesh to a reference template, allowing a more precise face comparison. The alignment algorithm exploits pyramidal-normal-map metric, a coarse to finer measurement of angular distance between two surfaces computed through normal maps with progressively increasing resolution. After the registration has been performed, the normalized face can be rapidly compared to any other template in the gallery database for authentication or identification purposes using standard normal map metric. The alignment approach avoids the need for a rough or manual face pre-alignment and maximizes recognition precision, requiring a fraction of the time needed by the iterative closest point (ICP) method to operate. We show preliminary experimental results on a 3D dataset featuring 235 different subjects." @default.
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- W2116101094 date "2007-09-01" @default.
- W2116101094 modified "2023-09-27" @default.
- W2116101094 title "Fast 3D Face Alignment and Improved Recognition Through Pyramidal Normal map Metric" @default.
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- W2116101094 doi "https://doi.org/10.1109/icip.2007.4378915" @default.
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