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What are IP Cameras? The simplest definition of an IP (or network) camera is a CCTV camera with a mini-computer built in. Although the latest CCTV cameras have digital capabilities, they convert back to analogue. An IP camera keeps the image in digital format and transmits it directly over a computer network to a receiving device such as a PC or Network Video Recorder (NVR). As such, the IP camera has many of the technical features of a CCTV camera and a computer network device, using the same CCD and image processing technologies of the former and using many of the standards and protocols of the latter. In addition the IP camera will also contain image compression technologies to convert the raw digital image into a standardised image format suitable for network transmission and display by computer device. IP camera products match analogue cameras in style, being available as fixed cameras, fixed domes, vandal resistant domes and fully functional dome formats; the choice of colour or day/night is also available. IP cameras tend to have similar imaging performance in terms of resolution, compression and frame rates and are more readily distinguished by other characteristics such as day/night, CS lens mount or audio capability. As such, the range of fixed cameras is divided into three simple groups:
High-end: Best-performance cameras with day/night functionality |
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