This reminds me of MIT’s work on femto-photography to <i>see</i> around corners. They used ultrafast laser pulses to bounce light off walls, capturing the reflections from hidden objects. By analyzing the time-of-flight data, they could reconstruct 3D shapes of objects not in direct view.
<<a href="https://web.media.mit.edu/~raskar/cornar/" rel="nofollow">https://web.media.mit.edu/~raskar/cornar/</a>>
The title from the video was changed to "What if we made a camera that sees in reverse?" which is more fitting since "seeing behind walls" was a bit clickbaity since the camera is mounted big arm literally peeking with a mirror.<p>The guy made a home made camera with orthographic projection, that should been enough for the title...
Sadly this post will probably get buried because it's a video link, but it really deserves some front page coverage.<p>This project involves a bunch of different disciplines, and I'm always amazed by what Shane can do in his (very expensive) mad science lab.
Amazing engineering here, but isn't this equivalent to raising your camera above the wall and then snapping a pic? This wasn't really seeing behind walls in the sense I expected.
The orthographic image is the coolest thing I've seen in a while! This is some remarkable engineering. I expected the images to be much lower quality but they look great.
tempest. 20+ years ago.<p>can 'see' computer screens thru walls at a distance.<p><a href="https://yandex.com/search/?text=tempest+program+see+computer+screens" rel="nofollow">https://yandex.com/search/?text=tempest+program+see+computer...</a>