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DINION 3100i IR Configuration | en 27
Bosch Security Systems B.V.
User manual
2024-02 | V01 | DOC
If you have enabled the Transparent background option, the background color is not
displayed in the OSD.
Alarm mode stamping
– Position
Select the position of the camera name overlay in the drop-down box. It can be displayed at
the Top, at the Bottom, or at a position of choice using the Custom option, or it can be set
to Off for no overlay information.
If the Custom option is selected, enter values in the X and Y position fields.
– Stamping size
Select the desired font size of the overlays on the OSD: Normal, Large or Custom.
Select Custom to enable the Font size (‰) field.
– Alarm message
Enter the message to be displayed on the image in the event of an alarm. The maximum text
length is 32characters.
– Text color
Select the color for the alarm message to be displayed in.
– Background color
Select the background color for the alarm message to be displayed in.
If you have enabled the Transparent background option, the background color is not
displayed in the OSD.
Stream security
Select from the Video authentication drop-down box a method for verifying the integrity of
the video.
If you select Watermarking, all images are marked with an icon. The icon indicates if the
sequence (live or saved) has been manipulated.
If you want to add a digital signature to the transmitted video images to ensure their
integrity, select one of the cryptographic algorithms for this signature.
Set the Signature interval [s] for the selected authentication method.
Click Set to apply the changes.
5.4.3 Positioning
The Positioning feature describes the location of the camera and the perspective in the
camera’s field of view.
Perspective information is essential to Video Analytics, as it enables the system to
compensate for the illusory smallness of distant objects.
Only through use of perspective information is it possible to distinguish objects such as
persons and cars, and accurately compute their real size as they move through 3D space.
However, to calculate perspective information accurately, the camera must be directed at a
single, flat horizontal plane. Multiple and inclined planes, hills, stairs can falsify perspective
information and produce incorrect object information such as size and speed.
Mounting position
The mounting position describes the perspective information that is also often called
calibration.
In general, the mounting position is determined by the parameters of the camera such as
height, roll angle, tilt angle, and focal length.
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