iFace100 Series Product User Manual
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6.4 Face Parameters
1: 1 Threshold:
This parameter is used to set the threshold of matching between
current face and the facial template enrolled in the terminal in the 1:1 verification
mode. If the similarity between current face and the facial template enrolled in the
terminal is larger than this threshold, the matching is successful; otherwise, the
matching is not successful. The valid value scope is 55─120. The higher the
threshold, the lower the FAR and the higher the FRR, and vice versa.
1: N Threshold:
This parameter is used to set the threshold of matching between
current face and the facial template enrolled in the terminal in the 1:N verification
mode. If the similarity between current face and the facial template enrolled in the
terminal is larger than this threshold, the matching is successful; otherwise, the
matching is not successful. The valid value scope is 65─120. The higher the
threshold, the lower the FAR and the higher the FRR, and vice versa.
The recommended thresholds are as follows:
Press
F2/
q
3 times.
Press
OK
once