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Configuring the parameters of the detection tool

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

  1. Create Pose Detection (see Configuring Pose Detection).
  2. Below the Pose Detection, click Create… → Close-standing people detection.

...

By default, the Close-standing people detection tool triggers when "skeleton" bounding boxes around individuals people collide. 

Info
titleNote

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

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

ParameterValueDescription
Other
EnableYesThe detection tool is enabled by default. To disable the detection tool, select the No value
No
NameClose-standing people detectionEnter the detection tool name or leave the default name
TypeClose-standing people detectionName of the detection tool type (non-editable field)
Basic settings
Distance sensitivity2Specify the distance between people in meters at which the detection tool must trigger. Alarm will be 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 detection tool to trigger. The value must be in the range [1, 100].
Increasing the value can help eliminate false alarms, but increases the risk of skips. 
Decreasing the value can help reduce skips, but increases the probability of false alarms

To save the parameters of the detection tool, click the Apply Image Added button. To cancel the changes, click the Cancel Image Added button.

Configuring the frame perspective 

if you want to change the triggering distance, you must configure You can set another triggering distance by adjusting the frame perspective:

Note
titleAttention!

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

  1. In the preview window, click the Image Added button.
  2. Specify
  3. Select a detection tool, and click the Image Removed button in the preview window.
  4. Set the size of the same object in different areas parts of the frame by eye. To create a leveling rod, left-click on the video image and to add two anchor points. Set You must set at least three leveling rods. The size of the leveling rod should must be about the average height of a person at this point in part of the frame. You can resize the rod by stretching its anchor points Image Removed Image Added. You can move can move it on screen by dragging and dropping.
    Image RemovedImage Added
    Note
    titleAttention!

    When

    setting

    you set up

    the

    leveling rods, the following conditions

    should

    must be met:

    The
    1. the rods that are located at the same distance from the
    video
    1. camera lens,
    should
    1. must be of the same size
    .
    1. ;
    The
    1. the feet of the rods
    should
    1. must be located on the same surface (
    e.g.
    1. for example, floor)
    .
    1. ;
    In

    1. in complex scenes,

    it is recommended to add

    1. we recommend adding more than three rods to increase the accuracy of the detection

    .

    1. ;

    In

    1. in the parts of the frame where the lens vertical distortion is observed, the rods

    should

    1. must be parallel to the nearest vertical objects (

    e.g.

    1. for example, door, wardrobe)

    .

    1. ;

    For
    1. for portrait-oriented scenes (such as corridor, shopping aisle, warehouse aisle,
    etc.
    1. and so on), the arrangement of the rods
    should
    1. must form triangles.
    Info
    titleNote
     For your
    • For convenience of configuration, you can
    click the Image Removed button and configure the mask on a still frame. To undoTo delete the rod
    • "freeze" the frame. Click the Image Added button. To cancel the action, click this button again.
    Info
    titleNote
    • The area for detection is displayed by default. To hide it, click the
    Image Removed
    •  Image Added button.
  5. In the Distance sensitivity field (1) enter a triggering distance value in meters between people. The detection tool will trigger if the distance between people in the frame becomes equal or less than the specified value. The value should be in the range [0; 20].
    Image Removed

  6. In the Leveling rod length field (2) enter the average height of a person (in meters), according to which the leveling rods are set. The value should be in the range [0; 3].

  7. Set the minimum number of frames in which the detection tool should detect close-standing people in order to trigger (3). The value should be in the range [1; 100].

...

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

  2. Click the Apply button.