Documentation for Axxon One 2.0. Documentation for other versions of Axxon One is available too.

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Configuring the parameters

To configure the Close-standing people detector, do the following:

  1. Create the Human pose detector (see Configuring the Human pose detector).
  2. Below the Human pose detector, click Create… → Close-standing people detector.

By default, the Close-standing people detector generates an event when "skeleton" bounding boxes around people collide. 

Note

Bounding boxes are not displayed in the interface. They are usually a bit larger than the "skeletons" dimensions.

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

ParameterValueDescription
Other
EnableYesThe detector is enabled by default. To disable the detector, select the No value
No
NameClose-standing people detectorEnter the detector name or leave the default name
TypeClose-standing people detectorName of the detector type (non-editable field)
Basic settings
Distance sensitivity2Specify the distance between people in meters at which the detector must generate an event. An event is generated if the distance between people in the frame is equal to or less than the specified distance. The value must be in the range [0, 20]
Leveling rod length1.7Specify the average height of a person in meters, according to which the leveling rods are set. The value must be in the range [0 3]
Number of measurements in a row to trigger detection4Specify the minimum number of frames with close-standing people for the detector to generate an event. The value must be in the range [1, 100].
Increasing the value can help eliminate false event, 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 detector, click the Apply  button. To cancel the changes, click the Cancel  button.

Configuring the frame perspective 

If you want to change the distance that must generate an event, you must configure the frame perspective:

Attention!

For portrait-oriented scenes (such as corridor, shopping aisle, warehouse aisle, and so on), we recommend configuring the perspective in any case.

  1. In the preview window, click the  button.
  2. Specify the size of the same object 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 points of any three rods must not be located on the same line (horizontal, vertical, slanting, 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 . You can move it on screen by dragging and dropping.

      Attention!

      When you set up leveling rods, the following conditions must be met:

      1. the rods that are located at the same distance from the camera lens must be of the same size;
      2. the feet of the rods must be located on the same surface (for example, floor);

      3. in complex scenes, we recommend adding more than three rods to increase the accuracy of the detection;

      4. 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 or wardrobe);

      5. for portrait-oriented scenes (such as corridor, shopping aisle, warehouse aisle, and so on), the arrangement of the rods must form triangles.

      Note

      • For convenience of configuration, you can "freeze" the frame. Click the  button. To cancel the action, click this button again.
      • The area for detection is displayed by default. To hide it, click the  button. To cancel the action, click this button again.
      • To delete a rod, click the  button.

  3. Click the Apply button.

Configuration of the Close-standing people detector is complete.

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