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30
USER MANUAL
Motion Detection
Motion detection is achieved by analyzing inter-frame brightness changes on a
pixel-by-pixel basis. There are two modes of Motion Detection supported in MP
Video System: a software mode and an on-camera mode.
•
The software mode performs motion detection by processing the images
after they were transmitted from the camera to the computer. In contrast,
the on-camera mode performs motion detection prior to transmitting the
images to the computer. Thus, the on-camera motion detection allows to
significantly reducing the CPU load and the network load when motion
detection is enabled.
•
Motion detection is enabled via the Archive settings when one of the two
following options is selected: “Save all and mark motion” or “Save only
motion”. If the Archive is enabled for “Save all frames” motion detection
is disabled. The Enabled/Disabled status is displayed in the bottom right
corner of the Motion Settings window.
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Motion detection is computed independently in multiple detection zones
on a square grid. The largest grid supported for any MP camera model
and image size is 8 by 8. The actual grid for any particular model is
determined by the chosen zone size (a drop-down list in the lower right
corner of the Motion Settings screen) and the cameraʼs pixel resolution.
The actual grid is displayed in the lower left corner. When motion is
present, the Motion Settings window displays green marks (selectable
between crosses and boxes) in the zones affected. (
Figure 18
)
•
A privacy mask can be set up to block motion detection in some of the
zones by drawing a rectangle with the mouse (by left-clicking and holding
down the mouse button). The privacy mask is marked with red crosses. A
more complex shape can be created by drawing multiple rectangles.
Erasing the mask (or part of the mask) is done by drawing a rectangle with
the right mouse button.
Figure 18. Image of motion detection
