[orbital-decay]

>It's hard to get tight spatial resolution with a beam that looks like a balloon animal.

Would compressed sensing help? It doesn't need the focus to be precise to reconstruct the scene from a single pixel detector.

[woeirua]

No, compressed sensing only allows you to attempt to reconstruct the original signal from a limited subset of the data sampled in a specific way, as long as you can assume some kind of sparsity on the data in another domain.

Fundamentally, you cannot get something from compressed sensing that you wouldn't be able to otherwise normally.