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Do not shake your head or body, otherwise the registration might fail.
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Avoid two faces appear in the capture frame at the same time.
Face Position
If your face is not at the appropriate position, face recognition effect might be influenced.
Appendix Figure 1-2 Appropriate face position
Requirements of Faces
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Make sure that the face is clean and forehead is not covered by hair.
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Do not wear glasses, hats, heavy beards, or other face ornaments that influence face image
recording.
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With eyes open, without facial expressions, and make your face toward the center of
camera.
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When recording your face or during face recognition, do not keep your face too close to or
too far from the camera.