Page History

Configuring the parameters

...

Note
title Attention!
When a recumbent person is facing a camera or away from a camera, the correct operation of the detection tool detector isn't guaranteed.

To configure create the Person Down Detectiondown detector, do the following:

1. Create
 Pose Detection (see 
2. the Human pose detector (see Configuring the Human pose detector).
3. Below the
 Pose Detection, click 
4. Human pose detector, click Create… → Person
Down Detection
5. down detector.

By default, the Person Down Detection generates down detector generates an event if a recumbent person is detected in the specified area.

If necessary, you can change the detection tool detector parameters. The list of parameters is given in the table:

Parameter	Value	Description
Other
Enable	Yes	The detection tool detector is enabled by default. To disable the detection tooldetector, select the the No value value
	No
Name	Person Down Detectiondown detector	Enter the detection tool detector name or leave the default name
Type	Person Down Detectiondown detector	Name of the detection tool detector type (non-editable field)
Basic settings
Number of measurements in a row to trigger detection	2	Specify the minimum number of frames with the corresponding pose or behavior for the detection tool detector to generate an event. The  The value must be in the range [1, 20]. The recommended (default) value is is 2. Increasing the value can help eliminate false events, but increases the risk of skips.  Decreasing the value can help reduce skips, but increases the probability of false events

To save the parameters of the detection tooldetector, click the Apply Image Modified button button. To cancel the changes, click the the Cancel Image Modified button.

Configuring the frame perspective 

For the Person Down Detection down detector operation, you must configure the frame perspective first.

For this, do the following:

1. In the preview window, click
the 
2. the Image Modified
 button
3.  button.
4. Specify the size of the same person in different parts of the frame by eye:
   • To create a leveling rod, left-click the video image to add two anchor points.

   • Set at least three calibration rods. The

lower anchor

5. • lower anchor points of any three rods must not be located on the same line (horizontal, vertical, slanting,

etc.

6. • and so on).

   • The size of the leveling rod must be about the average height of a person at this part of the frame.
   • You can resize the rod by stretching its anchor
points 
7. • points Image Modified. You can move it on screen
by 
8. • by dragging and dropping.
     Image Modified
     

     Note
     title Attention!
     When you set up leveling rods, the following conditions must be met: the rods that are located at the same distance from the camera lens

,

9. • must be of the same size; the feet of the rods must be located on the same surface (for example, floor); in complex scenes, we recommend adding more than three rods to increase the accuracy of the detection; in the parts of the frame where the lens vertical distortion is observed, the rods must be parallel to the nearest vertical objects (for example, door

,

10. • or wardrobe); if you add only three leveling rods to a scene, you cannot remove them from the scene, you can resize them and change their location; if you add more than three leveling rods to a scene, you can resize them and change their location, and remove them from the scene; for portrait-oriented scenes (such as corridor, shopping aisle, warehouse aisle, and so on), the arrangement of the rods must form triangles.

      Info
      title Note
      For convenience of configuration, you can "freeze" the frame. Click

the 

11. • the Image Modified

 button

12. • button. To cancel the action, click this button again. The area for detection is displayed by default. To hide it, click

the 

13. • the Image Modified

 button

14. • button. To cancel the action, click this button again. To delete a rod, click

the 

15. • the Image Modified

 button

16. • button.

      
      
17. Click
the Apply button
18. the Apply button.

Configuration of the Person down detector is complete.