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Video Analysis
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3. Select a camera from the Camera Selection drop-down list.
4. If necessary, use the Mask Region function to mask off the area on the camera view where
motion will be ignored.
5. Select Unattended Object Size, and click the Camera icon to pause live images.
6. Outline Min Object Size on the camera view, and select Max Object Size from the drop-down list
and outline the maximum object size on the camera view.
7. To adjust the detection sensitivity, move the Sensitivity slider. The higher the value, the more
sensitive the system is for changes in the camera view.
8. To adjust the minimum time required for the alarm to be activated, adjust the Tolerance Time of
Alarm slider or specify a value in the blank.
9. Optionally configure these settings:
Automatically Disable Alarm: Stops all types of triggered alerts, including computer alarm,
flashing boxes and output module after the specified duration. Disabling the alerts will not
disable alert settings and the detection in progress.
Skip Instant Light Change: Ignores sudden illumination changes and avoids false alarms.
For example, light switches can cause illumination changes suddenly. With the option
selected, the system will ignore significant illumination changes without triggering the alarm
and continue monitoring. See the Note in Crowd Detection earlier in this chapter for possible
risk.
Invoke Alarm: Enables the computer alarm when an unattended object is detected. Click the
[…] button next to the option to assign a .wav sound file.
Output Module: Enables the output device when an unattended object is detected. Select
this option and use the drop-down list to assign an installed output module and a pin number.
Never Recycle: With the option selected, the event files of unattended object detection will
not be recycled when the recycle threshold is reached.
10. You can click Test to test your settings. When an object is left unattended in the camera view, a
flashing box will appear on its location for warning. If the unattended object cannot be detected,
increase Sensitivity value to increase system sensitivity to changes in the camera view.
11. Click OK to apply the settings
12. Start monitoring to run the application. The detected crowd is indicated on the live view with
blinking red and green boxes.
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