Image Sensors

CCD and CMOS are two types of image sensors commonly used in modern digital cameras. They both use arrays of silicon pixels to detect light.

Charge-coupled device (CCD)

  • commonly seen in professional photography and telescopes

  • expensive

  • mostly global shutter (all pixels exposed to light at the same time)

  • less visual noise and distortion

Complementary metal–oxide–semiconductor (CMOS)

  • commonly seen in small-scale devices like mobile phone

  • inexpensive

  • mostly rolling shutter (pixels exposed to light line-by-line)

  • noisy

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