MiniAC Plus User Manual
P a g e | 53 Copyright©2021 ZKTECO CO., LTD. All rights reserved.
default value of 75 is recommended.
Under 1:1 verification mode, the verification will only be successful when the
similarity between the acquired facial image and the facial templates enrolled
in the device is greater than the set value.
The valid value ranges from 55 to 120. The higher the thresholds, the lower
the misjudgment rate, the higher the rejection rate, and vice versa. The
default value of 63 is recommended.
During face enrollment, 1:N comparison is used to determine whether the
user has already registered before.
When the similarity between the acquired facial image and all registered facial
templates is greater than this threshold, it indicates that the face has already
been registered.
The pitch angle tolerance of a face for facial registration and comparison.
If a face’ s pitch angle exceeds this set value, it will be filtered by the
algorithm, i.e. ignored by the terminal thus no registration and comparison
interface will be triggered.
The rotation angle tolerance of a face for facial template registration and
comparison.
If a face’s rotation angle exceeds this set value, it will be filtered by the
algorithm, i.e. ignored by the terminal thus no registration and comparison
interface will be triggered.
Image quality for facial registration and comparison. The higher the value, the
clearer the image requires.
Required for facial registration and comparison.
If an object’s size is smaller than this set value, the object will be filtered and
not recognized as a face.
This value can be understood as the face comparison distance. The farther the
person is, the smaller the face is, and the smaller the face pixel will be
obtained by the algorithm. Therefore, adjusting this parameter can adjust the
furthest comparison distance of faces. When the value is 0, the face
comparison distance is not limited.
LED Light Triggered
Threshold
This value controls the on and off of the LED light. The larger the value, the
more frequently the LED light will be turned on.
Motion Detection
Sensitivity
A measurement of the amount of change in a camera ’ s field of view that
qualifies as potential motion detection that wakes up the terminal from
standby to the comparison interface. The larger the value, the more sensitive