=========
Autofocus
=========

.. youtube:: B-TOUPXytw4
	:width: 100%


.. https://spectrum.ieee.org/autofocus-canon-twisted-diode

Contrast Detection
------------------
http://graphics.stanford.edu/courses/cs178/applets/autofocusCD.html

Phase Detection (PDAF)
----------------------

`Intro to Dual Pixel Autofocus (DPAF) <https://www.usa.canon.com/learning/training-articles/training-articles-list/intro-to-dual-pixel-autofocus-dpaf>`_ - Canon

.. http://graphics.stanford.edu/courses/cs178/applets/autofocusPD.html

Active Systems
--------------



.. https://imagesensors.org/Past%20Workshops/2021%20Workshop/2021%20Papers/R27.pdf