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Requirements for the operation of the Smoke Detectiondetector are given in the table:
Camera | - We recommend using color cameras. With black and white cameras, the detection quality can be noticeably worse
- Resolution must be at least 640x360
- FPS directly affects detection efficiency. In most cases, the default value (1 detection per 10 seconds) is sufficient to detect smoke that lasts more than one minute
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| Correct operation of the detection tool detector isn't guaranteed if you use frames that were masked before they got into Axxon One by an IP camera or similar methods. |
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Scene and camera angle | - The minimum smoke area in the frame depends on the neural network that you use. For a standard neural network (see Configuring the Smoke Detectiondetector), the smoke area must occupy at least 10% of the frame
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| In some cases, when smoke is clearly visible, the width/height of the smoke area can be sufficient at 1-3% of the frame width/height. |
- Smoke must be visually separated from the background
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If you set a rectangular recognition area for the detection tooldetector, the requirements apply to this area rather than to the entire frame (see Configuring the Smoke Detectiondetector). |