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To create the Sitting person detector, do the following:
- Create the Human pose detector (see Configuring the Human pose detector).
- Below the Human pose detector, click Create… → Sitting person detector.
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To save the parameters of the detector, click the Apply 
button. To cancel the changes, click the Cancel 
button.
Configuring the detection area
To configure the detection area, do the following:
- In the preview window, click the
button. - Click in the preview window.
- Select Detection area.
- Set the detection area using the anchor points
in which a sitting person must be detected.Info title Note! - For convenience of configuration, you can "freeze" the frame. Click the
button. To cancel the action, click this button again. - To hide the detection area, click the
button. To cancel the action, click this button again. - To delete the detection area, click the
button.
- For convenience of configuration, you can "freeze" the frame. Click the
- Click the Apply
button.
Configuration of the detection area is complete.
Configuring the frame perspective
If a camera angle doesn't meet the requirements (see Video stream and scene requirements for the Human pose detector and its sub-detectors), this can result in false events. In this case, we recommend configuring the frame perspective using the leveling rods.
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- In the preview window, click the button.
button. - Click in the preview window.
- Select Leveling rod.
- 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 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 points
. You can move it on screen by dragging and dropping.
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 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, wardrobe);
- 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 button
button. To cancel the action, click this button again. - The area for detection is displayed by default. To hide it, click the button
button. To cancel the action, click this button again. - To delete a rod, click the button
button.
- Click the Apply
button.
Configuration of the Sitting person detector is complete.
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