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Analytics
Page 50
Link an action to a tampering event
On the Event Management page, you can link actions to tampering events.
Delete a reference image
1
In the upper-right corner, click
Show reference images
.
2
Point to the image to be deleted.
3
Click the
Recycle
button.
Disable tampering detection
In the upper-right corner of the Tampering page, click
Deactivate Tamper Detection
.
The button goes from green to red.
Reference images - if any - will be preserved and can be reused when tamper detection is
reactivated.
11.2
Motion Detection
Motion detection enables the user to define a portion of the screen and to detect picture changes
there. These changes could be caused by motion or varying lighting, for example.
Set up motion detection
The Motion Detection function enables the unit to trigger an alarm when motion in a specified area
of the field of view - that is, the Region of Interest (ROI), reaches or exceeds a configured sensitivity
threshold value.
1
In the upper-right corner, click
Activate Motion Detection
.
The button turns green and the Draw ROI button appears.
Drawing a ROI is optional. If you do not need a ROI, proceed to step 4. In that case, the entire
field of view becomes the ROI.
2
Click
Draw ROI
.
3
Drag the mouse pointer across the preview to draw the Region of Interest (ROI).
If the ROI is not the correct size or in the wrong place you can repeat steps 2 and 3.
4
Drag the
Alarm level
slider to set the sensitivity of the detection.
Local change is only detected if its level exceeds the defined value (indicated by the red
horizontal line). The Alarm level setting can be used to eliminate unwanted ('false') triggering
(for example, caused by background noise or constant local movement). You may need to try
out several alarm levels to achieve the best detection.
5
If required, go to the Event Management page and add an event with motion detection as an
event trigger.
Deactivate motion detection
You can (temporarily) deactivate motion detection.
Click
Deactivate Motion Detection
.
The Motion Detection button turns red and the ROI is hidden. Clicking the button once again
reactivates motion detection using the same ROI.
11.3
Quality Monitor
The Quality Monitor can detect if images produced by the camera are still usable. Four coloured dials
give an indication of the performance of the camera and show whether or not it needs attention. A
quality check is made against what is normally a good picture.