BXT3-V2.3
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09/05/2019 27/41
6.3 Latency and localization accuracy
BLAXTAIR® triggers an alarm between 200 and 300 ms after a pedestrian or
an obstacle has entered the detection zone.
Near the detection zone and depending on the distance of the pedestrian (or
obstacle) to the sensor head, the localization accuracy may vary from up to
30cm between 1 and 3 meters, and up to 50cm between 3 and 5 meters.
6.4 False detections
Specific obstacles may cause false pedestrian detections.
These false detections are highly dependent on lighting conditions and image
quality in general (cleanliness of sensor head windows, angle and height of
the sensor head, proximity of the object, reflections, strong backlighting, very
low visibility, etc...).
False detections are generally caused by following objects:
• Gas cylinders,
• Poles,
• Coat hangers,
• Bushes.
• Life size pictures of people!
6.5 Influence of lighting conditions
Optimal detection and classification performance of BLAXTAIR® is achieved
with good lighting conditions.
Working lights must be utilized to flood the areas to be protected
for the BLAXTAIR® to function correctly in low light conditions, such as
night time
Strong backlight (sun in the field) as well as very
homogeneous lighting (local glare, halo of light, etc.), may
significantly degrade detection performance.
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