Printed Documentation
90
output frames are shifted to keep the image features aligned to previous frames. This results
in areas for which there is no image data available. The Border In-fill combo box lets you
select what happens to those areas of the image. There are 5 options available:
Fast Fade:
[Default]
Newer frames are composited on top of older frames. The old
frames are faded away to black quickly. This mode is most suited to PTZ and fixed
cameras.
Slow Fade:
Newer frames are composited on top of older frames. The old frames are
faded away to black slowly.
No Fade:
Newer frames are composited on top of older frames. The old frames are
not faded away. Suitable for fixed cameras where there is minimal movement by
people and cars around the edge of the scene.
Fixed:
A fixed size black border is present on all sides which blanks out the moving
edges of the image. The size of the borders is equal to the maximum frame shift (see
below).
None:
Old frames are not displayed. Regions of the output image for which there is
no available data are filled with black
Camera Installation Mode
The camera installation mode has 3 options:
Fixed/PTZ: [Default]
The stabilization algorithm parameters are optimized to give
the best stabilization results for fixed/PTZ cameras.
In vehicle/Hand held:
The stabilization algorithm parameters are optimized to give
the best stabilization performance for cameras where the camera fixture
experiences continued, large displacements or scene changes. E.g. when shot from a
moving vehicle.
Low Frequency Stabilization:
The Fixed/PTZ and In vehicle/hand held stabilization
modes are designed to allow tracking of intentional camera panning by not
stabilizing low frequency movements (< 1Hz). The Low Frequency mode has a lower
cut-off frequency to allow better low frequency stabilization at the expense of worse
tracking of intentional movement. This mode will automatically switch to the higher
frequency mode when excessive movement in one direction is detected in order to
allow better tracking of intentional movement. Once this movement has stopped it
will revert back to the low frequency mode.
Auto Disable
There are 2 options for Auto Disable - neither is selected by default:
Pan/Tilt:
This option disables the stabilization when excessive pan or tilt motion is
detected. This makes it easier to control pan/tilt cameras because the Stabilizer
ceases to oppose operator pan/tilt commands above the threshold. Once panning
stops, there is a 3 second timeout period before stabilization is reactivated.
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