PTZ is an abbreviation for pan, tilt and zoom and reflects the movement options of the camera. Other types of cameras are ePTZ or virtual pan-tilt-zoom (VPTZ) where a high-resolution camera digitally zooms and pans into portions of the image, with no physical camera movement.

The megapixel value is simply a shorthand means of expressing the camera's image resolution in a single figure.

FACIAL RECOGNITION TECHNOLOGY EXPLAINED

High Efficiency Video Coding (HEVC), also known as H.265, is a new video compression standard

AHD CCTV stands for “analog high definition”. It is a new HD surveillance video standard for CCTV cameras and DVRs.