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Configuring the parameters of the detection tool
| Note | ||
|---|---|---|
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When a recumbent person is facing the camera or away from the camera, the correct operation of the detection tool isn't guaranteed. |
To configure the Person Down Detection, do the following:
- Create Pose Detection (see Configuring Pose Detection).
- Below the Pose Detection, click Create… → Person Down Detection.
By default, the Person Down Detection triggers if a recumbent person is detected in the specified area.
If necessary, you can change the detection tool parameters. The list of parameters is given in the table:
| Parameter | Value | Description |
|---|---|---|
| Other | ||
| Enable | Yes | The detection tool is enabled by default. To disable the detection tool, select the No value |
| No | ||
| Name | Person Down Detection | Enter the detection tool name or leave the default name |
| Type | Person Down Detection | Name of the detection tool 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 to trigger. The value must be in the range [1, 20]. The recommended (default) value is 2. 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 
button. To cancel the changes, click the Cancel 
button.
Configuring the frame perspective
For the Person Down Detection operation, you must
| Tip |
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To detect a recumbent pose, you should configure the frame perspective first.
To do For this, do the following:
- In the preview window, click the
button. - Specify
- Select a detection tool, and click the button in the preview window.
- Set the size of the same person in different areas parts of the FOVframe by eye. To create a leveling rod, left-click on the video image to add two anchor points. You should 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
. You can move it on screen by dragging and dropping.
Note title Attention! When setting you set up the leveling rods, the following conditions should must be met:
- The the rods that are located at the same distance from the video camera lens, should must be of the same size.;
- The the feet of the rods should must be located on the same surface (e.g. for example, floor).;
In in complex scenes, it is recommended to add we recommend adding more than three rods to increase the accuracy of the detection.;
In in the parts of the frame where the lens vertical distortion is observed, the rods should must be parallel to the nearest vertical objects (e.g. for example, door, wardrobe).;If
- if you add only three leveling rods are added to the a scene, they you cannot be removed remove them from the scene, only their size and position can be changed.you can resize them and change their location;
- if you add If more than three leveling rods are added to the a scene, you can resize them and change their positionlocation, size, and also remove them from the scene.;
- For for portrait-oriented scenes (such as corridor, shopping aisle, warehouse aisle, etc.and so on), the arrangement of the rods should must form triangles.
Info title Note title Note- For
- convenience of configuration, you can
button and configure the mask on a still frame. To undo- "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.
Info - To delete
- a rod, click the
-
button.
- Click the Apply button.
Configuring the Man down detection tool is complete.
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| title | Attention! |
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- button.
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