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SLN-VIZNAS-IOT User Guide, Rev. 1.1, 10/2020
NXP Semiconductors
Figure 101: Bad IR Lighting
The
“proper” lighting configuration can vary based on the environment in which the
product is being used and may therefore require tuning of the LED PWM settings via the
CLI commands discussed in
and
until a lighting setting which works for your environment is found.
4.1.5 Adjust Face Proximity and Position
Because face recognition makes use of face “identifiers” to determine the face being
looked at, it is important that these identifiers can be seen by both cameras. Oftentimes,
an improper face angle and/or the proximity to the camera can cause registration to fail.
Shown below are a few examples of improper usage.
Figure 102: Improper Face Angle & Proximity