What is the difference between CCD and CMOS cameras?
The very first and important element in a camera is the sensor that captures the image. As in photographic and film cameras the images are captured on film, in CCTV cameras the images are converted into electrical signals with a help of an image sensor which can be a CCD(Changed Coupled Device) or CMOS(Complementary MOSFET) . CCD cameras are more sensitive and produces higher resolution compared to the newly developed CMOS cameras. Ideally for CCTV application CCD cameras are only to be used. CMOS sensors have been long used for imaging in photocopy machines and other scanners. Now same have been experimented for CCTV cameras. However the resolution offered by CMOS cameras is very low and has a shorter life compared to CCD cameras. The only advantage is that they are cheaply priced.
