Configuring the Neurotracker module

The Neurotracker software module is configured on the Neurotracker object settings panel. This object is created under the Camera object on the Hardware tab of the System settings window.

The Neurotracker software module is configured as follows:

1. Go to the Main settings tab.
   
2. Set the Generate event on appearance/disappearance of the track checkbox (1) if it is necessary to generate the event when the track appeared/disappeared.
3. Set the Show objects on image checkbox (2) if it is necessary to highlight the detected object with a frame when viewing live video.

4. Set the Save tracks to show in archive checkbox (3), if it is necessary to highlight the detected object with a frame when viewing the archive.

   Note

   This parameter does not affect VMDA search and is used just for the visualization. For this parameter, the titles database is used.

5. Select the required neural network file with the tracking model (4).

6. In the Recognition threshold [0, 100] field (5), specify the objects detection threshold within the range from 0 to 100.

   Note

   The objects detection threshold is determined experimentally. The lower the detection threshold, the more false triggerings there might be. The higher the detection threshold, the less false triggerings there might be, however, some useful tracks might be skipped.

7. In the Frames processed per second [0,016, 100] field (6), set the number of frames per second that will be processed by the neural network. All other frames will be interpolated. The higher the specified value, the more accurate the tracking, but the higher the CPU load.
8. In the Device drop-down list (7) select the device where the neural network will operate.
9. In the Minimum number of triggering field (8), specify the minimum number of neurotracker triggers required to display the object track. The higher the value of this parameter, the longer it will take from the object detection moment to the display of its track. At the same time, a low value of this parameter can lead to false positives.
10. In the Track hold time (s) field (9), specify the time in seconds after which the object track is considered lost. This parameter can be useful in situations where one object in the frame temporarily overlaps another. For example, when a larger car completely overlaps a smaller one.
11. From the Process drop-down list (10) select which objects should be processed by the neural network:
    • All objects — moving and stationary objects.
    • Only moving objects — an object is considered to be moving if during the entire lifetime of its track it has shifted by more than 10% of its width or height. Using this parameter may reduce the number of false positives.
    • Only stationary objects — an object is considered stationary if during the entire existence of its track it has not shifted by more than 10% of its width or height.

12. Set the monitoring area on the video image:

    1. Click the Setup button (11). The Detector settings window will open.
       

    2. Click the Start video button (1) to capture a video frame.
    3. Click the Surveillance territory button (2).
    4. On the captured video frame, sequentially set the nodal points of the area in which the objects will be detected by left-clicking the mouse button (3).
    5. Click OK (4).

13. You can use the neural filter to sort out video recordings featuring selected objects and their trajectories. For example, the neural tracker detects all freight trucks, and the neural filter leaves only those tracks that correspond to trucks with cargo door open. To set up a neural filter, do the following:

    1. Go to the Neurofilter tab.

    2. Set the Enable filtering checkbox (1).

    3. Select the required neural network file for the neural filter (2).

    4. From the Device drop-down list (3), select the device on which the neural filter will operate.
       

14. Click the Apply button (12).

    Note

    If necessary, create and configure the NeuroTracker VMDA detection tools on the basis of the Neurotracker object. The procedure of creating and configuring the NeuroTracker VMDA detection tools is similar to creating and configuring the VMDA detection tools for a regular tracker. The only difference is that it is necessary to create the NeuroTracker VMDA detection tools on the basis of the Neurotracker object, and not the Tracker object (for details, see Creating and configuring VMDA detection). Also, if you select the Staying in the area for more than 10 sec detector type, the time the object stays in the zone, after which the NeuroTracker VMDA detection tools are triggered, is configured using the LongInZoneTimeout2 registry key, not LongInZoneTimeout (see Registry keys reference guide).
    

The Neurotracker software module configuration is complete.

If it is necessary to periodically generate the events containing the number of objects received from the neurotracker, then create and configure the neurotracker track counters (see Configuring the neurotracker track counter).