High precision holographic camera sees around corners and through scattering media like fog and human tissue

https://news.northwestern.edu/stories/2021/11/new-holographic-camera-sees-the-unseen-with-high-precision/

"Prototypes use visible or IR photons, but principle extends to all photon energies. Light is emitted from unit, bounces off an intervening barrier, then hits the target object. The light then bounces back to the barrier and back to the unit. A computer algorithm reconstructs the target image... It’s like we can plant a camera on every remote surface to see the world from the surface’s perspective... turns walls into mirrors. Works at night, in foggy weather, and at high speed"

Related: WiFi Routers Used to Produce 3D Images of Humans
https://vpnoverview.com/news/wifi-routers-used-to-produce-3d-images-of-humans/