CMOS

The fundamental difference compared with CCDs is the conversion from charge to voltage within the pixel.
Furthermore, CMOS technology comprises two technologies, the active pixel and the passive pixel technology.

Regarding the active pixel technology each pixel can be adressed separately, so that all pixels can be exposed at the same time (global shutter). Theoretically, each pixel can be read out separately increasing the frame rate through an user-​definable ROI.

Regarding the passive pixel technology the pixels of one row share one part of the circuitry. Exposure and read-​out are done row by row (rolling shutter).