What is meant by resolution of Camera and how important it is in overall system?
Reasolution is usally meant by Vertical resoluiton and it is determind by the number of vertical TV lines e.g. 380 TVL or 550 TVL. Horizontal resolution is seldom quoted is a function of frequency. Overall resolution is a function of vertical & horizontal resolutions. Overall resolution may be quantified by number of pixels or picture elements. For B/W camera normal resolution is is 350 – 400 TVLines and high resolution means 550 – 600 TVLines, whereas for a colour camera normal resolution means 250 – 300 TVLines and 450 – 480 TVLines means high resolution. Note that the resolution of monitor is also important because afterall the resolution of the camera has to be produced on the monitor. So it is meaningless to have a monitor with a lesser resolution than that of the camera.