For most cameras, you need to calibrate the limits of the PTZ movement to use the
zoom-box, center-on-click, and enhanced zoom commands properly in Security
Desk.
What you should know
Not all cameras require PTZ calibration. For example, Axis cameras do not require
calibration.
Procedure
-
Open the Video task.
-
Select the camera, and click the Hardware tab.
-
Next to the Enhanced PTZ option, click
Calibrate.
-
To set the PTZ coordinates automatically, click Calibration
assistant, and follow the on-screen instructions.
-
To set the PTZ coordinates manually, move the PTZ motor around in the live video image,
and enter the corresponding values on the right:
- Max zoom factor
- Zoom in to the maximum level you want Security
Desk users to reach, and enter the
Zoom value from the Coordinates
section.
- Horizontal field of view
- Enter the horizontal field of view specified by the camera manufacturer. If you do
not have this information, zoom out until the Zoom value
indicates 1x, and estimate the angle of the horizontal field of view from the image
you see on screen.
- Vertical field of view
- Enter the vertical field of view specified by the camera manufacturer. If you do
not have this information, zoom out until the Zoom value
indicates 1x, and estimate the angle of the vertical field of view from the image
you see on screen.
- Minimum pan angle
- Turn the camera to the left-most position of the area under surveillance, and
enter the Pan value from the Coordinates
section.
- Maximum pan angle
- Turn the camera to the right-most position of the area under surveillance, and
enter the Pan value read from the Coordinates
section.
- Minimum tilt angle
- Turn the camera to the bottommost position of the area under surveillance, and
enter the Tilt value read from the Coordinates
section.
- Maximum tilt angle
- Turn the camera to the topmost position of the area under surveillance, and enter
the Tilt value read from the Coordinates
section.
-
If you want to flip the camera image at any point, select one of the following from the
Flip camera drop-down list:
- Minimum tilt
- Flips the camera image when the PTZ motor reaches the minimum tilt
coordinate.
- Maximum tilt
- Flips the camera image when the PTZ motor reaches the maximum tilt
coordinate.
-
If you see that the Minimum pan angle value is higher than the
Maximum pan angle value, select the Invert pan
axis option.
-
If you see that the Minimum tilt angle value is higher than the
Maximum tilt angle value, select the Invert tilt
axis option.
After you finish
Test the zoom-box, center-on-click, and enhanced zoom commands from a Security
Desk tile. If needed, adjust the
calibration, and test the PTZ camera again.