Motion Exception Vs. Motion Detection - American Dynamics Intellex Intellex DVMS User Manual

Motion exception searches for an event or activity by position, size, direction, and speed of a
moving object. Its parameters filter live video or search recorded video to find an event or activity.
After applying motion exception parameters, any object meeting your criteria in the target area
triggers an alarm.
• Motion exception cannot operate if the scheduled record rate is less than 7 ips.
• Motion exception requires a fixed camera or a dome in non-moving (fixed position) mode.
• You can configure one or more motion exception target areas at a time.
• Do not use Auto Rate Mode to configure recording rates when using motion exception filters for
alarm generation or search. Always use Camera Selectable Rate Mode and set the minimum
rate to 7.5 ips (6.25 for PAL) on cameras using motion exception filters.

Motion Exception vs. Motion Detection

Motion exception:
• Is more effective in performing what if searches.
• Performs detailed motion searches.
• Defines multiple regions of interest in various sizes.
• Specifies size, direction and speed of an object for detection.
Motion detection:
• Reacts to an image within the region of interest.
• Detects any motion that occurs.
Important differences in sensitivity:
Function
Reacting to images
Best location
Best position of the
camera
Alarms
Finding motion while
searching
Narrowing the filter or
search
Effectiveness
Neither is effective in low light.
For successful motion exception:
• A faster recording rate is better than a slower one.
• Draw one or more target areas to exclude extraneous activity.
• A target area near the center is better than one near the side.
• Do not increase the target object's size or speed unless required.
• Good quality video feeds are essential.
Motion Exception
Analyzes many images before
reacting
Outdoors
Far from the movement
Likelier to miss alarms, especially
in low light
Likelier to find specific motion
Use specific tools
Limited to specific camera views
Advanced Features
Motion Detection
Reacts image to image
Indoors
Close to the movement
Likelier to generate false alarms,
especially in low light
Likelier to find any motion
Use the Sensitivity adjustment
Effective on most camera views
User's Guide 25