American Dynamics Intellex DV8000 Installation And Operating Instructions Manual page 138

®
Intellex
138
Light Change
Live Filter Configuration
Digital Video Management System Installation and Operating Instructions
Use the Light Change screen to configure the target area for the
light change filter. Once configured, the filter is triggered
whenever the light level changes. The light level can change
when someone turns lights on or off, uses a flashlight or blocks
the camera lens.
After you select the Light Change filter and click the Setup
button, the Light Change screen appears.
Light Change: (camera name ) —Indicates the camera name.
Image Area — This area of the screen displays a camera image
and provides a reference when configuring the filter.
Active Zone — The active zone is the area in which the filter's
targets are activated. It can be nearly any shape or size.
Restore — Click to restore the active zone to its dimensions
when you first accessed this screen.
Clear — Click to erase all of the targets in the active zone.
Sensitivity — The unit uses this setting to distinguish between
valid and invalid changes in the target area. At higher settings,
small changes trigger the filter. At lower settings, larger changes
are required to trigger the filter.
1 ... 100 — Use this slide control to set the sensitivity for the
filter from minimum (1) to maximum (100). The sensitivity
number represents the area of changing video relative to the
active zone area. Maximum sensitivity (1) requires that a
larger fraction of the active zone change before the alarm is
generated.
Default — Click to reset the sensitivity to its default middle
position (50).
NOTE: When setting the filter sensitivity level, be sure to
consider the variations in lighting conditions, such as
exterior cameras recording from day to night or interior
cameras recording areas with lighting turned on or off. To
ensure that useful video is recorded or filtered, nominal
lighting in the area is required. You should adjust the filter
sensitivity for the lowest lighting condition that applies
(e.g., low sensitivity for low lighting), and then test the
filter to ensure its proper activation. More lighting in the
area will allow higher sensitivity settings to be safely
MORE>>>