Very cool! I'm always interested by clever uses of perception technology. I wonder if this can be combined with video magnification[1] to remove some of the noise?
Turning Corners into Cameras: Principles and Methods
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Re: Turning Corners into Cameras: Principles and Methods
#12Originally I thought they were detecting diffracted light around the edge of the wall but it turna out they are just annalzying the light on the floor, which seems to have been done before https://phys.org/news/2015-12-amazing-camera-corners-video.h...
This present research cites the older work you link. The older work uses active illumination; the present work appears to be entirely based on passive recovery of information.
Re: Turning Corners into Cameras: Principles and Methods
#13This reminds me of dual photography, where one can recover hidden images from diffuse-diffuse light transfer. video: https://www.youtube.com/watch?v=p5_tpq5ejFQ page: http://graphics.stanford.edu/papers/dual_photography/
Wow the card reading experiment is really amazing!
Also I'm not sure if this is similar or not but the following, seems like it might be related:
https://www.cl.cam.ac.uk/~mgk25/ieee02-optical.pdf
"Optical Time-Domain Eavesdropping Risks of CRT Displays"
Where he picks up an image from the diffuse light from a CRT on a wall.
Re: Turning Corners into Cameras: Principles and Methods
#14This should be used to save people's lives. Many of the marines on the ground that have to go into buildings expect a 50% casualty rate.
Re: Turning Corners into Cameras: Principles and Methods
#15This should be used to save people's lives. Many of the marines on the ground that have to go into buildings expect a 50% casualty rate.
Since it's funded by DARPA this is most likely the envisioned application.