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More photos with different variations and under different lighting conditions can increase the
recognition performance. It is recommended to include at least a front view (close view
and distant view), a tilted-left view, a tilted-right view, and a 20 degree view from above
view per face ID.
Front View
(Close View)
Front View
(Distant View)
Tilted-Left
View
Tilted-Right
View
20 Degree View
from above
view
Figure 5-12
See the table below for more examples. You can enroll a maximum of 20 photos per Face ID.
Smiling View
Glasses
Removed view
20 Degree View
from below
Internal IR LED
(with Glasses)
Internal IR LED
(Glasses
Removed)
Figure 5-13
Note: You can take the portraits with different sources of light, such as IR LED, WDR or
Back Light Compensation.
Certain articles and / or angle of view may pose limitations to the accuracy of face recognition.
See Appendix B. Limitations to Face Recognition to avoid them if the recognition results are
still ineffective.
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