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AXIS Perimeter Defender
Get started
To perform a manual calibration, click Manual.
When you have accepted the calibration, blue borders indicate the maximum detection zone. The maximum detection zone is the
largest area that can be monitored. Outside of this area, intruders might be detected but it is not guaranteed.
Verify the quality of the calibration
After a calibration, you should see the person who walked through the scene in several different places. If the person is not visible at
all, the automatic calibration has failed and needs to be redone.
There are several ways to verify the quality of the calibration:
• Check the calibration precision indicator. It reects an automatically computed precision level that measures how well the
person covered the scene and how well he or she was detected. If the precision indicator is in the red zone the calibration
has failed and you are not able to click Accept. See Perform a manual calibration on page 22.
• You can use the grid tool. See Use the grid to verify calibration on page 20.
• You can use the avatar tool. See Use the avatar to verify calibration on page 21.
• You can check the detection results. See Use detection results to verify calibration on page 22.
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Calibration precision indicator
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Grid and avatar tools
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Dynamic or static view
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View modiers
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Toggle between calibration image and live view
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Horizon line
The horizon line represents the visible end of the ground in the scene. When you dene scenarios, it is not possible to place scenario
zones in the blue area above the horizon line, as this is above the ground and scenario zones are by denition on the ground.
Use the grid to verify calibration
The grid should correspond to a square grid on the ground. You can toggle the display of the grid by clicking the grid view
modier icon.
Important
The grid does not affect the calibration, it is a tool to make sure the calibration is correct.
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