Digital Imaging

Refers to the capture of a video image in such a way that the resulting image data is in digital format useful for analysis by a computer. Digital photography Digital photography uses an electronic sensor to record the image as a piece of electronic data. There are two main types of sensors:

Charge-Coupled Device (CCD)

CMOS semiconductor

There are also two main types of sensor mechanisms:

Area array

Linear array (very rare, only limited to the highest-end)

An area array sensor reads the entire image plane at once, whereas a linear array sensor works more like a flatbed scanner.