In the future, cameras may be able to focus as fast and accurately as the human eye, making photos like this a thing of the past. Photo Charlie Sorrel. Why can humans glance at a scene and focus instantly on the subject, near or far, when a camera takes — relatively — forever. That's the same question Johannes Burge and Wilson Geisler asked themselves, before developing an algorithm to do it.
Humans and animals focus their eyes by estimating the blur in a scene, and then snapping the eye into sharp focus almost instantly.
Gadget Lab, Cameras Could Focus As Fast As The Human Eye
