SpeedFace M4 User Manual
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1 Instructions to use
1.1 Standing Position, Facial Expression and Standing Posture
Recommended distance
Facial expression and standing posture
The distance between the device and a user whose height is
within 1.55m to 1.85m is recommended to be 0.3 to 2m. Users
may slightly move forwards and backwards to improve the
quality of facial images captured.
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