CCTV (CLOSED CIRCUIT TELEVISION)

[CCTV (CLOSED CIRCUIT TELEVISION)]

ABSTRACTAs the name implies, Closed Circuit Television (CCTV) is a system in which the circuit is closed and all the elements are directly connected. This article introduces he main components and the basic working principle of the Video Content Analysis of Smart CCTV that can go right up to the horizon to make up CCTV systems of varying complexity and faithful surveillance. In recent decades, especially with general crime fears growing in the 1990s and 2000s, public space use of surveillance cameras has taken off, especially in developing countries. Surveillance has become part of everyday life. The compelling arguments for its introduction into public spaces as means of ensuring public safety have led to CCTV cameras perched high above every street corner within towns and cities. The next generation of surveillance, smart CCTV is now being introduced under the guise of routine maintenance and upgrade. In June 2001, one lakh people attending the Super Bowl in Florida had their faces scanned in search of wanted criminals using the same technology.Computerized monitoring of CCTV images is still under development for better quality and faithful surveillance. A human CCTV operator does not have to endlessly look at all the screens, but only at the relevant things or persons which may be a potential threat, hence allowing an operator to observe many CCTV cameras at the same time without overlooking the things which are to be dealt with. These systems do not observe people directly. Instead they track their behavior by looking for particular types of body movement behavior, or particular types of clothing or baggage. Its virtually impossible to ensure that the operators will be looking at the right cameras at the right time. This technology of Smart CCTV helps hem to do so easily.

definition CCTV images. This could determine a person's identity without alerting him that his identity is being checked and logged. The systems can check many thousands of faces in a database in under a second. This type of system has been proposed to compare faces at airports and seaports with those of suspected terrorists or other undesirable entrants. Computerized monitoring of CCTV images is under development, so that a human CCTV operator does not have to endlessly look at all the screens, allowing an operator to observe many more CCTV cameras. These systems do not observe people directly. Instead they track their behavior by looking for particular types of body movement behavior, or particular types of clothing or baggage. The theory behind this is that in public spaces people behave in predictable ways. People who are not part of the 'crowd', for example car thieves, do not behave in the same way. The computer can identify their movements, and alert the operator that they are acting out of the ordinary. Recently in the latter part of 2006, news reports on UK television brought to light newly developed technology that uses microphones in conjunction with CCTV.If a person is observed to be shouting in an aggressive manner (e.g., provoking a fight), the camera can automatically zoom in and pinpoint the individual and alert a camera operator. Of course this then lead to the discussion that the technology can also be used to spy and record private conversations from a reasonable distance (about 100 metres or about 330 feet). The same type of system can track identified individuals as they move through the area covered by CCTV. Such applications have been introduced in the early 2000s, mainly in the USA, France, Israel and Australia. With software tools, the system is able to develop three-dimensional models of an area, and to track and monitor the movement of objects within it.CONCLUSIONThere are four million CCTV cameras in India but most of them are useless for fighting crime. Cameras watch us on buses, trains and at airports but their effect on reducing crime have been negligible. Thats because they simply record huge amounts of film and virtually none of it is ever viewed. It just gets put on a disc and stored and never looked at again unless the police want to check it while investigating a crime. But a new generation of CCTV cameras is being tested which will not only film you but assess and analyze everything you are doing. They make an assessment of your age, gender, the color of your clothes and other factors to assess whether you are at risk. Instead of watching a bank of screens security analysts will just need to watch three or four which the computer has highlighted for them to watch in "real time. We will have to look at the only things that are relevant. "We aim to develop a system which will make crime-free buses, trains, stations and airports a reality."

REFERENCE

1. www.digitalsindia.com/cctv.htm2. www.aditgroup.com/cctv_security_system.html3. www.zicom.com/index.php/.../safebusiness-cctv-surveillance-system

2ABSTRACT | DEPARTMENT OF ELECTRONICS & TELECOMMUNICATION ENGINEERING