16
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.
Appendix Figure 4-2 Head position
Appendix Figure 4-3 Face distance
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When importing face images through the management platform, make sure that image
resolution is within the range 150 × 300 pixels–600 × 1200 pixels; image pixels are more than 500
× 500 pixels; image size is less than 100 KB, and image name and person ID are the same.
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Make sure that the face takes up more than 1/3 but no more than 2/3 of the whole image area,
and the aspect ratio does not exceed 1:2.
