Basic Video Analytics - Axis Q6045-E User Manual

AXIS Q6045-E Mk II PTZ Dome Network Camera
Detectors
Parameter
Description
High level (100%)
Medium level (50%)
Low level (0%)
Recommended values
Default values
Note
• To trigger on small objects or movements, use several small motion detection windows rather than one large window,
and select a low object size.
• To avoid triggering on small objects, select a high object size.
• While monitoring an area where moving objects are not expected, select a high history level. This will cause motion
detection to trigger as long as the object is present in the window.
• To only detect flashing light, select a low sensitivity. In other cases high sensitivity is recommended.

Basic Video Analytics

The Basic Video Analytics section include the following detectors:
• Object Removed, see page 33
• Enter/Exit Detector, see page 34
• Fence Detector, see page 35
• Object Counter, see page 35
Important
• To activate a detector, the saved preset must be selected in the drop-down list. The detector will only be enabled at the
preset, see Preset Positions on page 26. Note that the Area of interest and Object size are not visible in Preset Positions,
only under the Detectors menu. If the pan/tilt/zoom position is changed, the detector is disabled.
• The detector will not register an object if the speed of the object is too high, if the object is too close to the camera, if the
difference in luminance between the object and the background is insufficient, or if the camera is autofocusing.
Object Removed
Object Removed is used to trigger an alarm if a detected object within a pre-defined area of interest has disappeared. Do the
following to set the detector:
Note
Use the Drawing Opacity slidebar to define how transparent the area of interest or object size shape should be. Note
that this change will not be saved.
Object Size
Object size relative to window
size.
Only very large objects trigger
motion detection.
Even very small objects trigger
motion detection.
5–15%
15%
History
Object memory length.
An object that appears in
the window triggers motion
detection for a long time
before it is considered as
non-moving.
An object that appears in
the window triggers motion
detection only for a very short
time before it is considered as
non-moving.
60–90%
90%
33
Sensitivity
Difference in luminance
between background and
object.
Ordinary colored objects on
ordinary backgrounds trigger
motion detection.
A large difference in luminance
is required to trigger motion
detection.
Only very bright objects on
a dark background trigger
motion detection.
75–95%
90%