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Video Surveillance 101
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Video Surveillance is a collection of composite video cameras used for monitoring and surveying in areas for reasons of security. It differs from broadcast television in that all components are connected directly to a monitoring station and/or recording device. Most Common means of communications for systems are: Coaxial Cable, UTP (Unshielded Twisted Pair, RF Wireless, and Fiber Optics. Replacing the time lapse video recorder, it is standard practice to use Digital Video Recorder Technology as a means to archive camera area views. Using improved data storage compression and built-in motion recording, DVR’s are affordable and capable of providing long term storage. Cameras may come in a wide variety of options, including but not limited to: Pan/Tilt/Zoom, Infra Red, Low-light Sensitive, High Definition, Miniature (Covert), Ruggedized (Vandal, Weather, Ballistic, Intrinsic, etc.)
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Video Surveillance is often used in areas where there is an increased need for security, such as banks, casinos, hospitals, shopping malls, airports, and the government/military. Video Surveillance has developed to the point where it is not only used in commercial, industrial, and military applications but home security systems as well. |
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Latest Technology...
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High Definition Cameras that can take 1280x720 pixel resolution images of the camera scene and record using a network video recording solution. The uses of high definition color cameras provide extremely fine detail in observation and playback through software. |
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License Plate Capture Cameras, linked to an OCR (Object Character Recognition) produces a potential source of information on the location of persons or groups. This may provide identification of an undesirable immediately upon entrance to a premise. |
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Facial Recognition technology has been tried as a form of mass surveillance. This type of system has generally been proposed to compare faces at airports and seaports with those of suspected terrorists or other undesirable entrants. This technology makes it possible to determine a person's identity without the need to stop and ask them in the street, or even alert them that their identity is being checked and logged. |
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Object Tracking being developed is computerized monitoring so that a guard or operator does not have to endlessly look at all the screens. This also means that an operator can run many more video cameras. These systems do not observe people directly. Instead they track their behavior by looking for particular types of movement, or particular types of clothing or baggage. The computer can identify their movements or behaviors, and alert the operator that they are acting out of the ordinary. For example, they can track movement across a scene where there should be no movement, or they can lock onto a single object in a busy environment and follow it. Being computerized, this tracking process can also work between cameras. |
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http://www.dynapel.com/products/documents/new/CloseView.pdf |
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Securityhunter, Inc.
One Securityhunter Place
P.O. BOX 47277
Baltimore, MD 21244-7277
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