Basic principles of image sensors

Comparison of CCDs and CMOSs

The main comparison criteria are listed below, and are in constant evolution...

Fill factor

Saturation exposure

Dark current

  • CMOS is not suitable for a long exposition time.

Pattern Noise

  • With CMOSs, correcting a mistake after having shaded the pixels is possible.

Linear defect

  • CMOS non-linear with a receipted flow.

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