False Positives; Customizing Detection Scheduling; Motion Detection Reference - Honeywell Rapid Eye Administrator's Manual

False Positives

Customizing Detection Scheduling

Motion Detection Reference

Command
Edit motion
mask
Show
gridlines
Document 800-02953V4 Rev A
03/10
A false positive (also known as a false alarm) is a common situation that triggers motion
detection without posing a security risk. Sources of false positives can include: the sun's
glare reflected on windows and cars, shadows, turning vehicle or building lights on and off,
and direct sunlight as the day progresses.
More than one technique can be used to reduce false positives:
• Masking. You can mask areas of a feed where movement is not a concern.
• Scheduling. Alarms can be scheduled not to go off at certain times of the day. See
Alarms and Scheduling
• Camera placement. Software settings and scheduling can compensate for many
false positives, but not for all. For example, direct sunlight may require moving a
camera or shielding it from the sunlight.
• Camera position. A camera inside a building is an effective way to use motion
detection, since lighting can often be controlled. However, a window or vista, which
shows a roadway or pedestrians, can trigger unwanted motion detection.
• Motion search. There are cases when performing a timely search for motion is more
effective than constantly testing for motion. See
Video Settings and Motion Detection
When an alarm based on motion detection is enabled, changing the picture settings
(brightness and so on) can trigger that alarm. You can limit the triggering of alarms by using
the Delay slider in the motion detection controls. See
Defined on page 205 for more information.
Scheduling alarms. Motion is detected at all times. There may be times when movement
may not be of any interest, such as during business hours. These times can be scheduled
to not trigger any alarms. See
PTZ cameras. On a PTZ camera, panning, tilting or zooming can trigger motion events.
You have the option of scheduling alarms for times when a PTZ camera is not moving.
Table 7-2 Motion Detection Commands
Description
Click Edit motion mask to enable the Show gridlines button.
Click Show gridlines to toggle the grid that overlays the video image on the Video tab.
Rapid Eye Multi-Media DVR System Administrator Guide
on page 121.
Motion Search
Cameras
Alarms and Scheduling on page 121.
on page 130.
on page 75 and Events
129