Surveillance cameras are quasi-cameras used in security, its pixels and resolution than the computer's video head to be higher than the professional digital camera or dv low. Surveillance cameras are mostly just a single video capture device, rarely with data saving capabilities. Surveillance cameras from the appearance of the main distinction for the gun, dome, high-speed ball type, in addition to analog monitoring and IP network monitoring distinction, widely used in schools, companies, banks, transportation, safe city and many other security areas.