Stephen Shankland, CNET:

When Apple marketing chief Phil Schiller detailed the iPhone 11’s new camera abilities in September, he boasted, “It’s computational photography mad science.” And when Google debuts its new Pixel 4 phone on Tuesday, you can bet it’ll be showing off its own pioneering work in computational photography.

The reason is simple: Computational photography can improve your camera shots immeasurably, helping your phone match, and in some ways surpass, even expensive cameras.

But what exactly is computational photography?

Nice explainer.