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VA settings in the channel configuration dialog box
GeneralVASettings
The rest of the VA settings are in the same tab. Some of them must be adjusted in order to proceed (e.g., no object
classes are selected by default); other settings already have default values. If you are not sure what values should be
used for that particular video channel, leave the default (pre-configured) value, check how VA works, then slowly
adjust the value until you see which one works best for your scene.
Please adjust the overall engine settings here first before adding zones and rules.
Setting Description Default
Value
Enable VA state for the current channel, ON/OFF Disabled
Use low-
resolution stream
if available*
Similarly to motion detection, use smaller image for detection in order to save
server resources.
Enabled
Enable metadata
overlay
Select this option to turn ON the metadata overlay on the Luxriot EVO Monitor
side (affects all connected Luxriot EVO Monitor applications)
Disabled
Classes Choose the object classes that you want to be detected in the target video
(further class choice will be limited to this list)
None
Detection
interval**
Time (delay) in milliseconds between two successive detections (similar to MD) 200
milliseconds
Object loss
timeout
The amount of time in seconds before the lost/disappeared object is not tracked
anymore
6 seconds
Scene
dynamics***
Relative speed of the objects in the scene, i.e., how fast the object crosses the
screen; in more dynamic scenes, objects appear in less frames
Normal
(average)
Confidence
threshold
The minimum level of confidence to decide if the object belongs to a class
(detections with lower confidence will be ignored)
70%
Object similarity
threshold****
The minimal level of object similarity between two detections to decide that it is
the same object (objects with lower similarity will be detected as new), optimal
range: 50-90%
85%
Maximum object
size
Larger objects will not be detected. Click the Select button to set the size using
visual adjustment. (Use this setting to eliminate false detections of non-existing
large objects).
50%, 50%
Evo Video Analytics 7
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