User manual

ARECONT VISION USER MANUAL 34
Arecont Vision 425 E Colorado St, 7
th
Floor Glendale, CA 91205 8/1/2012
www.arecontvision.com
The software mode performs motion detection by processing the images after they are transmitted
from the camera to the computer. In contrast, the on-camera mode performs motion detection prior
to transmitting the images to the computer. As such, the on-camera motion detection setting allows
for a significant reduction in CPU load and network load when motion detection is enabled.
Motion detection is only enabled via the Archive settings when one of the two following options is
selected: “Save all and mark motion” or “Save motion frames only”. 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.
Motion detection is computed independently in multiple detection zones on a square grid. The
largest grid supported for any Arecont Vision 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 camera’s 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 where motion occurs (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.