Geo-Fencing Analysis can use the boundary of the designated area in the video as a fence, and when the target enters or leaves the area, it can prompt the corresponding information, notification or warning. Video geo-fence technology is widely used in traffic monitoring, security, public security and other fields, such as the detection of motor vehicles driving into Non-Motor Vehicle lanes, bus lanes and other violations, limiting the parking of shared bicycles and so on.
After the Video Registration is the geospatial coordinate, the Geo-Fence Vector Data can be overlaid and displayed with the video data, and the position of the target object is tracked according to the Object Detection, and whether the target object intersects with the boundary of the Geo-Fence is analyzed, so as to judge whether the target object has violation behavior. In the traffic field, the monitoring Target Settings of the geofence can be motor vehicles, when the motor vehicles drive into the geofence illegally, warning information can be given in the video in time, violation photos can be intercepted, and the efficiency, real-time performance and accuracy of motor vehicle violation behavior monitoring can be improved.
Main operation
- Click the Video Analysis tab-> Traffic Analysis group-> Geo-Fencing Analysis button, and the fence analysis buttons are divided into a button part and a drop-down button part. If you click Geo-Fencing Analysis directly, the first option of Drop-down Button, namely Geo-Fencing Analysis, will be selected by default, and the Geo-Fencing Analysis dialog box will pop up. The related Parameter Description in the dialog box is as follows:
- Detection Area: Set the fence area for detection. When the target is in the fence, it indicates that the target has violation behavior. The user needs to select the Fence Area Dataset and the Datasource where the data is located.
- Analysis Rule：
- Analysis Rule: After the Analysis Rule row is selected, click the Drop-down Button in the cell in the Analysis Rule column to select a specific rule. The program provides three rules: Occupy bus lane, Occupy non-motorized vehicle lane and Occupy emergency lane.
- Analysis surface: The user can set the surface information corresponding to the rule. Click the cell of the analysis surface to display … Button. Click this button to enter the SQL Expression dialog box to filter the face information by SQL Expression. For example, Bus Lane, Emergency Lane and Non-Motor Vehicle Lane have different Attributes, which can be filtered by SQL Expression.
- Analysis Standard: Analysis Standard is used to set whether the system gives violation information when detecting whether the target is included in the analysis surface. Provides both inclusive and exclusive settings.
- Violation Photo Storage: You can save the photos (*.png) of the vehicles violating the regulations as the basis for violation of regulations by selecting the path of the folder where the photos are stored.
After setting the above parameters and clicking Play Video, the text of "Violation" will be displayed above the target object entering the geofence, and the Violation Photo Storage will be set to the designated path. The Analysis Rule in the figure below is set as Occupy bus lane. When the vehicle drives into the bus lane, the information of "Occupy bus lane" will be displayed above the vehicle.
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