Canon VB-H41 User Manual

Page 112

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112

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.

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)].

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.

Detect criteria for [Camera Tampering Detection]

For [Camera Tampering Detection], the entire image

display area becomes the detection area. “Detected”

mode will be triggered to ON when the image is

obstructed over an area exceeding the ratio set in

[Change Ratio (%)].

When [Change Ratio (%)] is changed, an indicator frame

representing the area that can be obstructed is displayed

for 1 second in the center of the image display area. This

allows you to check the change ratio of the camera

tampering detection area, which occupies the entire

image display area, while specifying the [Change Ratio

(%)] setting.

Any moving objects detected are shown with contour

lines. If it is smaller than [Change Ratio (%)], contour lines

are white. If the image is changed for an area larger than

[Change Ratio (%)], contour lines take on the same color

as the detection area, indicating that “detected” mode

has been triggered to ON.

Note

Detection will not be possible for three seconds after the change

ratio is modified when camera tampering detection is selected, or
when switching into camera tampering detection from another

detection mode.

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.

Contour of abandoned
object

Removed object
detected

Contour of removed
object

Obstructed area
indicator

Contour of camera
tampering object

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