Patent for Sale:End-to-End Video Verification
The invention discloses methods of monitoring the integrity of the video system end-to-end, i.e. from the optical domain in front of the camera and to the picture displayed on the security monitor, so that if the video system is compromised in any way, including in the digital, analogue or optical domains, the verification system would raise an alert indicating that the video system has been compromised.
The method proposed a controller that is eternal to the video system, and on one hand is able to manipulate the lighting of the surveyed scene, while on the other hand monitors the luminosity of the connected monitors by measuring their current consumption. During normal operation, the illumination change pattern of the surveyed scene will be reflected in proportional (or inversely proportional) current consumption changes in the monitor, with a reasonably constant delay. A loss of the above relationship would be an indication that the video system has been compromised, and that the monitor no longer accurately represents the surveyed scene.
The invention also discloses a method of similarly verify that a recorded video footage is an accurate depiction of a surveyed scene, and a method of verifying that a recorded video is indeed played out on a monitor.
Primary Application of the Technology
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Class 348: Television
Generating, processing, transmitting or transiently displaying a sequence of images, either locally or remotely, in which the local light variations composing the images may change with time.Subclass 143: Observation of or from a specific location (e.g., surveillance)
Subclass 152: Intrusion detection
Subclass 159: Plural cameras