Security capabilities

With any video surveillance system privacy is an important consideration. Video intelligence and network cameras can be put to work to alleviate some of these concerns. Unlike analog CCTV cameras that only send out one single video stream that can be tapped into, a network camera can encrypt the video being sent over the network to make sure it cannot be viewed or tampered with. The system can also be set up to authenticate the connection using encrypted certificates that only accept a specific network camera, thus eliminating the possibility of anyone hacking into the line.

To mitigate against the threat of manipulating of digital images, it is now possible to use techniques such as time stamping and watermarking. The creation of audit trails makes it possible to know who has seen what images and whether any edits have been made by those individuals.

With watermarking, the network camera adds encrypted watermarks to the video data stream. These watermarks contain the time, location and user information as well as information about which alarms were linked to a specific recording sequence. Digital watermarks are designed to be completely invisible to viewers. This is achieved by scattering the watermark information randomly throughout the file in such a way that they cannot be identified and manipulated by unauthorized users.

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