User manual

User Manual ADPRO
®
XOa Client Software
126 21796_05_preliminary
15.2.6 Motion Zone Detection Settings
The detection settings depend on the type of camera that you use: analogue or IP.
For analogue cameras you can adjust the sensitivity and the threshold for each detection zone.
 Sensitivity: specifies how much the luminance of the pixels in the zone has to change to detect motion.
 Threshold: sets the number of pixels in the zone that have to change in order to detect motion. This
defines the size of the objects that you can detect. With a large threshold, only large objects will trigger
motion detection.
It takes some testing to find the optimal settings. Some guidelines for successful motion detection with
analogue cameras:
 Use uniform lighting.
 Switch off AGC (automatic gain control) in the camera.
 Keep the sensitivity as low as possible. If sensitivity is high, small illumination changes may cause false
alarms.
 Keep the detection zones as small and narrow as possible. With large detection zones, you have to
increase the sensitivity in order to detect motion. This in turn may increase the number of false alarms.
Also, relatively small objects may not be detected in a large zone.
 Use the graph to test the settings for each zone. Click a zone to select it, and the detection level in that
zone appears in the graph. The horizontal red line indicates the threshold. The detection level (black line)
must exceed the threshold to trigger motion detection.
Note
To get a feel for how the different settings influence detection, adjust only one setting at a time:
sensitivity, threshold, or the size and shape of the detection zone.
For IP cameras you can adjust time and minimum object size for each detection zone:
 Time: sets the detection delay. Minimal delay means that the motion is detected immediately when an
object starts moving in the detection zone. Maximal delay means that the motion is detected when the
object is moving inside the detection zone for some time.
 Min Object size: sets the object size relative to the region size. Minimal object size means that even
very small objects (such as small animals like cats and dogs) will trigger motion detection. Maximal
object size means that only very large objects will trigger motion detection.
It is recommended to test out the settings to obtain the best result.