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Analysis of the
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video obtained from
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cameras is performed with the activity detector. Activity detectors are intelligent sensors
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that perform various functions: motion detection
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in the
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camera FOV, face recognition, lens flare detection,
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and more.
Each camera has its main activity detector. By default, camera arming/disarming means the main activity detector is switched on/off. An alarm event
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generated by the main detector
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is registered by the system
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when any movement is detected in the camera FOV. If the camera is disarmed, an alarm event
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isn't registered.
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In addition, there are special
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additional detectors
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.
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These detectors, unlike the main
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detector,
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detect not only
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any movement in the camera FOV but also, for example, the covering or exposure of the camera lens, camera rotation, face
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identification, and so on.
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Additionally, masks can be applied to the main and additional areas of detectors. A mask is an area of the video within which monitoring isn't performed. For example, if a mask is applied to the area of the main detector, motion control within the mask isn't performed.
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