A CCD camera is a video camera that contains a charged-coupled device (CCD), which is a transistorized light sensor on an integrated circuit. In plain English, CCD devices convert or manipulate an electrical signal into some kind of output, including digital values. In cameras, CCD enables them to take in visual information and convert it into an image or video. They are, in other words, digital cameras.
This allows for the use of cameras in access control systems because images no longer need to be captured on film to be visible. Security cameras, using the techniques of CCD, can relay live visual information, which is hugely important when monitoring your facility. When combined with other security measures, these security cameras become a foolproof way to protect your space. Coupled with motion sensors or video verification, for example, CCD cameras can capture the image of cardholders who are attempting to enter a protected space.