> For the complete documentation index, see [llms.txt](https://wiki.hanzheteng.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.hanzheteng.com/algorithm/cv/image-sensors.md).

# 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