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1. Minimum resolution is at least 640х480 640х360 pixels.
2. Frame rate is no less than 2 FPS (no less than 4 FPS is recommended).
3. Objects must be visually separated from the background as well as from each other.
4. Camera is mounted in no less than 3 meters above the ground, or on the ceiling.
5. An object (its bounding rectangle) must occupy no less than 10% of the FOV.

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