118 Abandoned Object Detection, Removed Object DetectionDetection frames appear on the objects that have been detected for movement and stayed still for five seconds. If[Object Height (%)], [Object Width (%)] and [Duration (Sec)] are not met, the detection frame is displayed with awhite dot line. If [Object Height (%)], [Object Width (%)] and [Duration (Sec)] are all exceeded, the detection frame isdisplayed in the same color as the detection area to indicate that something has been detected. Camera Tampering DetectionMoving objects detected are displayed with detection frames. If an object is smaller than [Change Ratio (%)], itsdetection frame is displayed with white dot line. If the obscured area in the video exceeds [Change Ratio (%)], thedetection frame takes on the same color as the detection area, indicating that the camera has “detected” tampering.Note• Detection will not be possible for three seconds after the change ratio for camera tampering detection is changed, or whenswitching to camera tampering detection settings from settings for another detection mode. Passing DetectionAll moving objects detected are displayed with white detection frames.When the [Decision Point] of an object that meets the [Object Height (%)] and [Object Width (%)] setting crosses adetection line in the direction set in [Passing Direction], the detection frame changes to the same color as thedetection line, and the status becomes “detected”. Notification of a passing detection event occurs only when thedecision line is crossed.Important• A removed object may not be detected in the following cases.– When long and thin objects are removed– When the same object is placed continuously and some of the objects are removed– When objects of the same shape are placed together and some of the objects are removed• If the video inside the detection area changes without an object being removed, it may be misdetected as a removed object.Detection FrameDetection FrameDetection FrameImportant• Perform a detection test after configuring passing detection to make sure the detection frame of a moving object continues tobe displayed.Detection FrameDecision pointDetection line