Virtual Masks - Bosch AUTODOME IP starlight 7000i User Manual

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AUTODOME IP starlight 7000i
Tamper detection
Detect tampering of cameras and video cables by means of various options. Run a series of
tests at different times of the day and night to ensure that the video sensor is operating as
intended.
Sensitivity and Trigger delay [s] can only be changed if Reference check is selected.
Reference check
Save a reference image that can be continuously compared with the current video image. If
the current video image in the marked areas differs from the reference image, an alarm is
triggered. This detects tampering that would otherwise not be detected, for example, if the
camera is turned.
1.
2.
3.
4.
Trigger delay [s]
Set delayed alarm triggering here. The alarm is only triggered after a set time interval in
seconds has elapsed and then only if the triggering condition still exists. If the original
condition has been restored before this time interval elapses, the alarm is not triggered. This
avoids false alarms triggered by short-term changes, for example, cleaning activities in the
direct field of vision of the camera.
Global change
You can set how large the global change in the video image must be for an alarm to be
triggered. This setting is independent of the sensor fields selected under Select Area. Set a
high value if fewer sensor fields need to change to trigger an alarm. With a low value, it is
necessary for changes to occur simultaneously in a large number of sensor fields to trigger an
alarm.
This option allows you to detect, independently of motion alarms, manipulation of the
orientation or location of a camera resulting from turning the camera mount bracket, for
instance.
Global change
Activate this function if the global change, as set with the Global change slide control, should
trigger an alarm.
7.3

Virtual Masks

Virtual masks allow users to mask parts of the scene which should not be considered for flow
analysis to trigger Intelligent Tracking. This allows users to mask background motion in the
scene such as moving trees, pulsating lights, busy roads, etc.
To create a virtual mask:
1. Select the number of the Virtual mask. In the video preview window, a dark grey rectangle
appears with the text "Mask x," where 'x' is the number of the mask.
2. Select the mask with your mouse. Move the mouse to position the mask over the area of the
view that you want to mask, and then click "Set." The text "VM Configuration active!" appears
in the View Control window.
Bosch Security Systems
Click Reference to save the currently visible video image as a reference.
Click Add mask and select the areas in the reference image that are to be ignored. Click
Set to apply.
Check the box Reference check to activate the on-going check. The stored reference
image is displayed in black and white below the current video image.
Select the Disappearing edges or Appearing edges option to specify the reference check
once again.
User Manual
Alarm | en
49
2020-07 | v0.7 |

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