Note For Face Detection - GeoVision GV-TBL Series User Manual

Note for Face Detection

To use the camera's built-in face detection feature (see 3.5.1.7 Face Detection), not
supported by GV-ABL2701 series / 2703 series / 4701 series / 4703, GV-ADR2701 / 2702 /
4701 / 4702, GV-TBL series, GV-TDR2702 / 4702 and GV-TVD series, it is recommended to
install the camera according to the criteria listed below:
Surveillance Condition

The camera shall be installed at a site with uniform, sufficient lighting, where the
face(s) to be detected are fully illuminated.
Example of Recommended Scene
Camera Position

The camera shall be mounted at a recommended height of 2.5 ~ 3 m.

The camera shall be mounted with a recommended depression angle of around 10°.

The camera shall be positioned so that the face(s) to be detected are directly aligned
with the lens of the camera, with a horizontal deviation of no greater than 30°, a
vertical deviation of no greater than 15° and a face size of at least 120 pixels.
Example of Non-recommended Scene
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