MIC IP fusion 9000i Camera | en 25
Bosch Security Systems User Manual 2017.11 | 0.20 | F.01U.349.011
Only through use of perspective information is it possible to distinguish objects such as
persons, bicycles, cars and trucks, and accurately compute their real size and speeds 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.
This parameter is important for Intelligent Tracking. If using Intelligent Tracking, select
Standard.
The MIC camera provides the tilt angle and the focal length automatically to complete the
global calibration for every potential field of view of the camera.
Height [m]
The height describes the vertical distance from the camera to the ground plane of the
captured image. Typically the elevation of the mounted camera above the ground.
Enter the height in meters of the position of the camera.
Sketch
The Sketch functionality offers an additional, half-automatic calibration method. This
calibration method allows you to describe the perspective in the camera’s field of view by
drawing vertical lines, ground lines, and ground angles in the camera image and entering the
correct size and angle. Use the Sketch functionality if the result of the automatic calibration is
not sufficient.
You can also combine this manual calibration with the values for roll angle, tilt angle, height
and focal length calculated by the camera or entered manually.
Click to improve the automatic calibration. The Sketch Calibration window is displayed.
VCA Profile
Select the appropriate profile.
Global
Select the Global check box to use the global, overall calibration for all AUTODOME and MIC
cameras.
Alternatively, clear the Global check box to obtain a local calibration and overwrite the global
calibration for the selected profile. To do this, select the VCA profile before.
Notice!
The Sketch functionality is only available for configured and assigned pre-positions.
For AUTODOME and MIC cameras, configure the pre-positions of the camera and assign the
pre-positions to one of the available 16 VCA profiles before calibration with Sketch.
Applications are pre-positions of cameras directed towards different ground planes, an
optimized calibration for inclined ground planes or large focal lengths. A local pre-position
calibration does not change the global calibration.
It is also possible to calibrate pre-positions without entering a global calibration.
Calculate
Select the Calculate check box to obtain the roll angle, tilt angle, height and focal length from
the sketched calibration elements - vertical lines, ground lines and angles - you have placed in
the camera.
Clear the Calculate check box to enter a value manually or to refresh to the values provided by
the camera itself.
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