Many cities, businesses and cameras installed closed-circuit television (CCTV) individuals for surveillance purposes is Do home security cameras reduce crime in your city, in particular, has installed thousands of surveillance cameras. New York with over 4,000 video cameras in Manhattan, has adopted many of the same strategies that the cities of London and the United States are in a comparable way. These cameras make a lot of people feel safer, but this technology can make other people worry about the loss of perceived privacy.
The investment needed for a surveillance camera can be important. Some of these cameras can cost up to $ 60,000 each, before the cost of human resources to monitor the output is considered. J. Freeman, a security market for business analysts, predicts that for US international investment each year $ 21 billion in these systems through 2010. The market for video surveillance systems in the United States has increased by nearly 700% between 1980 and 2000.
Experiments to date show that surveillance cameras improve public safety? Due to the political agendas at stake, with the camera industry’s polarization in favor of and against civil liberties groups, the answer is clouded by hyperbole. For example, the title of a news article on a study by the University of California’s Information Technology Research Center for the Advantage of Society (CITRIS) says: “MONITORING ROOMS DO NOT SEEM THE VIOLENT CRIME “. However, this CITRIS study found that cameras were very effective at reducing property crime within 100 feet of cameras, resulting in a 24% reduction, but this fact was buried in the press article.
The CITRUS study was very comprehensive and is frequently cited as evidence that surveillance cameras do not work, although the study found significant positive effects from the cameras. However, as these results may not correspond to the agenda, these results are generally not reported.
There is also a detour by the industrial groups, because they earn money through the sale of cameras. The latest camera surveillance technology is the use of computers to interpret data. This is a type of artificial intelligence that is called “video analysis” and is potentially beneficial for the effective use of surveillance cameras, but this technology has sometimes been oversold significantly by the camera industry. monitoring. This technology works best in less complex environments, such as a warehouse or charging station that must be idle. Video analysis works much less in busy environments, like a crowd in a mall.
“Some of the claims that are made are just ridiculous,” says Oliver Vellacott, CEO of IndigoVision, a British company that develops video analytics technology. “It’s important not to believe all the ridiculous hype and nonsense about what analytics can deliver.”
It has often been shown that camera recording can be used to solve crimes. The Chicago Police Department estimates that the network of cameras installed in its city has been an important tool, resulting in more than 1,200 arrests since 2006. The Dallas Police Department reported more than 1,700 arrests in a period similar to its system of arrests. camera surveillance We have all seen reports on the terrorist attacks from London to London in metropolises. Without camera systems, where the perpetrators have managed to follow the movements of the perpetrators, it is very likely that it would take much longer to resolve these crimes. Monitoring works best when there is a system that observes the camera output. But human time is expensive, and that’s where video analysis can be important. If a computer can show a lot of cameras and the human only controls the likely events, then only one human being can monitor many more cameras. It is also more gratifying for humans not to see the output of the camera without events. But we must keep our expectations realistic.
If we believed in Hollywood, camera systems with this type of artificial intelligence have an almost mystical power. The truth is that it is very difficult for a computer to interpret many environments, at least with the current level of technology. However, a computer system equipped with video analysis software, associated with an experienced human, can monitor many cameras. Chicago hired IBM to install camera systems with video analysis software. “This will really allow us to launch our network of hyperdrive cameras,” said Kevin Smith, a spokesman for the United Nations Office of Emergency and Communications (OEMC). “In the end, I think what this software could do is simply recognize suspicious behavior and alert our operations to people and sometimes our crime detection experts.” Chicago installs surveillance cameras in all buses and meters to provide mobile eyes in the city Once the mobile broadband system in place, data will be available in near real time, Chicago is the world leader in the application of video analysis on this scale .
Surveillance cameras can be deterrents to crime. In a convenience store study, CCTV surveillance has shown impressive results. A sample of 81 stores was studied for 1 year before and 1 year after the installation of surveillance systems for CCTV cameras. The aggression rate decreased by 53% after the cameras were installed. The Housing Authority of New York City estimates that CCTV systems have reduced crime by 36% in their social housing. Baltimore (17%), Dallas (11%) and Philadelphia (37%) also report an improvement in the crime rate due to their camera surveillance systems in the center of the city. However, not all cities report any improvement. Washington DC, for example, says its cameras have proven ineffective. In a British study, of 14 British cities using a video surveillance system, the systems had little effect on crime in six of the cities.
The bottom line is that a camera surveillance program requires more than installing hardware. An effective program includes a camera that is not monitored, is a piece of hardware ass, and the camera system will have no credibility. Dallas uses retired and lightweight officers for his camera monitors. Intelligent systems (video analysis) can make human surveillance much more efficient. Over time, as camera systems help fight crime, the deterrent effect of cameras will improve. This is the message of London and New York.