Canon VB-S30D Operating Manual page 112

[Object Size (%)]
Enter a value or move the slider to set the ratio of the size
of an object that was left behind in the detection area to
the size of the detection area.
When [Object Size (%)] is changed, an indicator frame
representing the area of the object is displayed for 1
second in the center of the video display area. This allows
you to check the size ratio of the abandoned object
detection area while specifying the [Object Size (%)]
setting.
[Duration (Sec)]
Set the time that must elapse after an object has been left.
If both the values for [Object Size (%)] and [Duration
(Sec)] are exceeded, detection mode is triggered to ON.
Any moving objects detected are shown with contour lines.
If [Object Size (%)] and [Duration (Sec)] are not exceeded,
contour lines are white. When all detection criteria are met,
contour lines take on the same color as the detection area
and "detected" mode is triggered to ON.
Detect criteria for [Removed Object Detection]
Set detection areas for objects whose removal you want to
detect. If there are multiple objects for which you want to
enable detection, be sure to configure Removed Object
Detection for each object.
For [Duration (Sec)], set the time that must elapse after
the object has been taken away. Detected mode will be
triggered to ON when an object is taken away from the
detection area for a period longer than the set [Duration
(Sec)].
112
Object size indicator
Detection area
Contour of abandoned
object
Any moving objects detected are shown with contour
lines. As long as [Duration (Sec)] has not elapsed,
contour lines are white. When [Duration (Sec)] has
elapsed, contour lines take on the same color as the
detection area, indicating that "detected" mode has been
triggered to ON.
Important
Set detection areas for removed object detection so that they
precisely match the contours of the object in question.
Influence from the target object's shadow or adjacent objects
may result in the target object being recognized as larger than
actual and will not trigger Removed Object Detection. In such
cases, reconfigure the detection area to outline the recognized
target object. Alternatively, use [Quick setting] (p. 110).
Detect criteria for [Camera Tampering Detection]
For [Camera Tampering Detection], the entire video
display area becomes the detection area. Detected mode
will be triggered to ON when the video changes over an
area exceeding the ratio set in [Change Ratio (%)].
When [Change Ratio (%)] is changed, an indicator frame
representing the percentage of the entire video display
area is displayed for 1 second in the center of the area,
allowing you to check while specifying the setting.
Removed object
detected
Contour of removed
object
Change ratio indicator