Quadrox VCA - Manual (Page 16)

VCA Installation and Configuration manual 16
Version 4.9 Series
A filter can be set up to be not in use, include or exclude any of these object groups. For
example, by default you would choose to exclude clutter.
3.2.4 Streaming
As for general VCA configuration, the streaming can be put to High and Low, where Low is
preferable for remote connections.
To be able to save the settings, please click Apply Settings.
3.3 General rules
The VCA works best on a camera with framerate of at least 10 fps. The absolute minimum is
8, and 12 is recommended. Please make sure that your camera can provide such framerate, or
VCA might not work as expected.
Take into account that VCA needs some time (and space on the image) to recognize an object.
Therefore, it is best that the overview of the camera shows more than just the area of interest.
The zones you create should have a gap between the image borders to provide to VCA the
space and time to catch and classify the objects. If the zones are created too closely to the
borders, the filters might not work as expected.
Note: If you want to use analogue cameras on a digitizer card for VCA, keep in mind
that on a 4-channel card, you will only be able to use two inputs. On a 16-channel
card, you will only be able to use 8 inputs.
You will have to decrease the amount of channels per VCA that you want to use.
To work, VCA needs to retrieve an absolute minimum of 8 fps (frames/second) in
JPEG compression from the camera. We strongly advice to make sure that camera
delivers 15 fps or more to get the best result. For H264 and MPEG4 compression you
need to use default 15fps for best results. You can check the actual framerate of your
camera: open WebCCTVNVR Video Browser’s Live View, hold CTRL button and
right-click right on the image. A pop-up window will show the actual frame rate.
If the framerate is lower than 10 FPS, VCA might not work as expected.