In order to be effective SafeZone 2D must be used and installed correctly.
An object must be visible for at least 2 seconds in the scene
Works best with fixed cameras (with some small vibrations tolerated)
Use with a PTZ camera is possible, but be aware that once the camera stops moving it can take a few seconds for the analytics to learn the new background, and any object already in the scene will likely be treated as background
There must be suitable contrast between background and object in question (see next page)
To detect an object it must be:
taller than 10% of the height of the video frame
AND no taller than 60% of the height of the video frame
AND no bigger than 35% of the area of the video frame
There is no classification of objects – there is only a ‘Detection Start’ and ‘Detection Stop’ trigger available
Contrast Guidance
For an object to be correctly detected, the contrast between the object and the background must be sufficient. An operator must see easily the object in every part of the detection zones.
Optical camera with sufficient artificial lighting
We recommend at least 50 lux in the whole detection area when using a day & night IP camera with artificial lighting.
Optical camera with IR lighting
IR spots are supported however additional False Alerts (even more with built-in IR) may occur in detection zones subject to significant headlight effects.
Thermal camera
Thermal camera supported : best option in terms of performance and detection range for 24/7 surveillance. No False Alerts due to headlight effects.
