Installation Guide

Illustra Pro Gen 4 2MP, 4MP and 8MP Domes Installation and Configuration Guide
8200-2007-08 A0 81
h Crowd Formation: Used to detect and raise an alarm when a crowd forms in a spe-
cified region of interest. A minimum crowd size can be specified to trigger alarms only
when the specified size is reached. For example if a particular region should not have
more than 2 people at any given time the minimum crowd size should be set to 3.
i Exit - Used to detect objects exiting a camera view through a region of interest, for
example, a doorway or threshold. It is best to draw the region of interest around the door-
way or threshold to include areas in which the door can move or objects can be seen, for
example, glass. This will exclude objects that can be seen in the region of interest but
does not pass through it.
j Enter - Used to detect objects entering a camera view through a region of interest, for
example, a doorway or threshold. It is best to draw the region of interest around the door-
way or threshold to include areas in which the door can move or objects can be seen, for
example, glass. This will exclude objects that can be seen in the region of interest but
does not pass through it.
9 Use the Overlap slider bar to increase or decrease the percentage of overlap.
10 To apply a color filter over the Region of Interest, select one of the seven Color Filter check
boxes.
11 Select Save to save your changes.
The rule name and type that you have created appears in the Analytics Rules table.
Note:When rule type is selected , extra configuration items appear for some rule types. See the
section on Video Intelligence above for information on the extra configuration options for each rule
type.
The Color Filters parameter allows you to limit your search results to the specified color(s)
only. The color filters parameter is not available on Abandoned / Removed, Perimeter,
Queue Analysis, or Crowd Formation. Leaving the color filter parameter blank has the
equivalent function of 'ANY' color.
Object Detection
a Overlap (%) - The amount of a detected object that must be in the region of interest
before an alarm is triggered. Use a higher setting to detect objects that are mostly inside
the region, and use a lower value to find objects that just brush the edge of the region.
Abandoned / Removed
a Overlap (%) - The amount of background change that must be in the region of interest
before an alarm is triggered. Use a higher setting to avoid finding nearby changes or
changes that are not completely in the region of interest.
b Minimum Skip (secs) - This is the period of time after an alert, during which no further
alerts are generated. A setting of 0 seconds triggers all alerts.
c Fast Trigger - Enable Fast trigger to reduce the time required to assess if an object is
abandoned or removed. As a result, alerts trigger more quickly, but the number of false
alarms also increases.
d Wipeout Amount Changed (%) - The percentage of the region of interest that must
change before an alarm is triggered. Adjust to look for either a larger or smaller change in
the region.
e Wipeout Within (secs) - Time frame within which the change must occur in order to trig-
ger the alarm. A setting of 0 seconds represents instantaneous change.
Direction