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Video Surveillance: Smart Video Surveillance is Getting Smarter

The U.S. government is showing a great deal of interest in the applications of state-of-the-art video surveillance tools and put some applications to the test in November. An evaluation was conducted for several weeks that probed their use in counter-terrorism scenarios.

The highest scoring video surveillance system, Alert Vision by Northrop Grumman, processes live video surveillance streams and highlights any behavior that meets its programmed criteria for suspicious activity. For example, a strolling figure would be framed with a green square, but that square would turn red if the person dropped a case and walked away from it. These triggers are programmable. The video surveillance system would highlight the case and the figure, alerting the guard watching the video bank.

Also included in Grumman's system is a license plate recognition scanner that can read and identify security-flagged vehicle plates in seconds.

Each competing video surveillance technology in the test, which was hosted by the Energy Department and Air Force national assessment group, was installed in a site and tested for two weeks. Company officials trained government operators to respond to a variety of environmental and threat conditions.

The future of such video surveillance systems is on display at Northrop Grumman's center for smart security solutions in Reston, Va. Seated in movie-house chairs, visitors can gaze on a large-screen demonstration of next-generation perimeter video surveillance security systems. Intruders are detected with sensors, including video surveillance cameras trained on any human-like objects sneaking onto restricted grounds. The video surveillance system then tracks the intruder, camera to camera, as they make their way through the installation. The entire event is recorded on digital video.

Other video surveillance systems take satellite pictures, digital photographs and architectural information to model locations to integrate video systems with other access control efforts. For example, staff for the center modeled downtown Honolulu, and with a mouse click on an icon an operator can get "live" camera feeds from any corner video surveillance camera. Police and rescue units could also be marked with icons and tracked.

Most of the smart video surveillance systems on display are modular. People tracked on video surveillance cameras appear bracketed by two boxes: a rectangle around their torso, and a square around the head. That allows facial recognition video surveillance systems to be integrated into the video surveillance system. By mapping the bone structure of a human face from the upper lip to the brow, the smart video solution can match the traits to a watch list database. The face images can be manipulated, tilted so the eye sockets match face-forward database images. Keith Ward, director of Northop's identification and authentication solutions, said the new research area involves three-dimensional recognition systems that can model missing parts--such as the far side of a turned head--from a photo image, that can be used to make a match.

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