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The scanning mode is available for:
- Fire Detectiondetector.
- Smoke Detectiondetector.Pose Detection
- Human pose detector.
- NeurocounterNeural counter.
- NeurotrackerNeural tracker.
Configuring the scanning mode
You can configure the scanning mode using the parameters of the corresponding detection tool. The list of required parameters and their values are presented in the table below.
| Parameter | Value | Description |
|---|---|---|
| Scanning window | Yes | Select the Yes value to enable the scanning mode |
| No | ||
| Scanning window height | Numeric value (in pixels) | The height and width of the scanning window are determined according to the actual size of the frame and the required number of windows. For example, the real frame size is 1920×1080 pixels. To divide the frame into four equal windows, set the width of the scanning window to 960 pixels and the height to 540 pixels |
| Scanning window width | ||
| Scanning window step height | The scanning step determines the relative offset of the windows. If the step is equal to the height and width of the scanning window respectively, the segments will line up one after another. Reducing the height or width of the scanning step |
increases the number of windows due to their overlapping each other with an offset. This |
increases the detection accuracy, but |
also |
increases the CPU load
|
| |
| Scanning window step width |
Recommendations for configuring the scanning mode
- Set the same values for the window height and scanning step, as well as the window width and scanning step.
- Set the optimal number of scanning windows—from four to eight. The number of windows will depend depends on specific purposes, quality of the original frame, capabilities of devices. If the original frame is of low quality or small size, a large number of windows won’t increase the detection accuracy, but can lead to false alarms events from a detection tool or no detection. You must select the number of scanning windows experimentally.
- If you didn’t get the events from a detection tool responses at the same values of window and step, you must experimentally reduce the scanning steps relative to the height or width.
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- Scanning window—Yes.
- Scanning window height—540.
- Scanning window width—960.
- Scanning window step height—540.
- Scanning window step width—960.
As a result, the frame will be is conditionally divided into four equal windows that will be are analyzed separately and all together at the same time. If smoke is detected in any of these windows, the detection tool can triggergenerate an event.
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