Line Crossing - Digital Watchdog MegaPix DWC-MVT4WiA User Manual

Video Cast Detection: Alarms will be triggered if the video becomes obscured.
2. Set the alarm holding time and alarm trigger options. The setup steps are the
same as motion detection. Please refer to motion detection chapter for details.
3. Click "Save" button to save the settings.
4. Set the sensitivity of the exception detection. Click "Sensitivity" tab to go to the
interface as shown below.
Drag the slider to set the sensitivity value or directly enter the sensitivity value in the
textbox. Click "Save" button to save the settings.
The sensitivity value of Scene Change Detection: The higher the value is, the more
sensitive the system responds to the amplitude of the scene change.
The sensitivity value of Video Blur Detection: The higher the value is, the more
sensitive the system responds to the blurriness of the image.
The sensitivity value of Video Cast Detection: The higher the value is, the more
sensitive the system responds to the obscuring of the image.
※ The requirements of camera and surrounding area
1. Auto-focusing function should not been enabled for exception detection.
2. Try not to enable exception detection when light changes greatly in the scene.
3. Please contact us for more detailed application scenarios.

7.5.3 Line Crossing

Line Crossing: Alarms will be triggered if someone or something crosses the pre-
defined alarm lines. It can replace the electronic fence, warning line of flood
prevention, etc.
Go to Config→Event→Line Crossing interface as shown below.
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