Mentioned a number of times here. The ultimate privacy loss?
Real-Time Video of Scenes Hidden Around Corners Now Possible
University of Wisconsin-Madison News, Eric Hamilton, November 11, 2021
Researchers at the University of Wisconsin-Madison (UW) and Italy's Polytechnic University of Milan have created a non-line-of-sight imaging technique that can display video of hidden scenes in real time. The technique combines ultra-fast and highly sensitive light sensors with an advanced video reconstruction algorithm. The method captures information about a scene by bouncing light off a surface and detecting the echoes of that light as it bounces back; it sees around corners by detecting the reflections of those echoes. UW’s Andreas Velten said, “It’s basically echolocation, but using additional echoes—like with reverb.” .... '
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