The requirements for cameras when you work with the Fight detector are given in the table.
| Camera | - Resolution is at least 640x360 pixels.
- The viewing angle of the camera must be as horizontal as possible.
- FPS is at least 15
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| Lighting | - Lighting in the scene is at least 50 lux. In conditions of insufficient or excessive lighting (night or light-striking), stable operation of the analytics isn't guaranteed.
- No abrupt changes in lighting
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| Scene and camera angle | - Moving objects are visually separable from each other.
- The background is mostly static and doesn't change abruptly.
- The scene is minimally obscured by static objects (columns, trees, and so on).
- The analyzed scene doesn't have reflective surfaces and sharp shadows from moving objects. If present, they must be masked.
- Camera shake doesn't result in image offsets greater than 1% of the frame size
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| Image | - The size of the person must be at least 21×55 pixels (width×height).
- There must be no objects that block the person's body in the frame.
- Image isn't noisy and isn't distorted by artifacts of the compression algorithm.
- Situations that increase the likelihood of analytics error:
- Sudden changes in the scene.
- Camera facing top-down at a steep angle
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