Engineering Materials
Femtosecond Camera Sees Around Corners

Using a femtosecond laser, the Cornar video camera system bounces light off of walls and floors to 'see' around corners and beyond the line of sight.   (Source: MIT)
Using a femtosecond laser, the Cornar video camera system bounces light off of walls and floors to "see" around corners and beyond the line of sight.
(Source: MIT)

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Femtosecond Camera Sees Around Corners
vimalkumarp   4/6/2012 12:45:05 AM
Will it be helpful in automobiles? like seeing the vehicles in the blind corners or avoiding the blind spots? MIT media lab is really doing great work ..

Jon Titus
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Single detector or photo array?
Jon Titus   4/5/2012 6:22:35 PM
Very interesting. If the "camera" measures time of flight of the photons, perhaps it relies on only one sensitive photodetector rather than an imaging array. Photodiodes can offer femtosecond response.

Ann R. Thryft
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Re: The Media Lab is only the incubator
Ann R. Thryft   4/5/2012 3:48:14 PM

I think there are several possible markets for this technology, and I'm not at all sure that they will all be niche markets, although no doubt some will be. Thanks, Jim, for your input, experience and enthusiasm. I didn't quite envision the Star Trek transponder when reading about this, but the possibilities for military/first responder and industrial/commercial applications seem pretty interesting and achievable.

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The Media Lab is only the incubator
JimT@Future-Product-Innovations   4/5/2012 1:11:26 PM

Another compelling example of physics and discovery coming out of the Media lab at MIT.  As "apresher" mused about commercial viability, I'm not so sure this is a niche market, but I definitely agree that this technology is in its infancy and has great potential to grow into something fantastic.

For a period of time about 10 years ago, I had the exciting responsibility to visit and watch media lab presentations, then take ideas like this one back into Advance Development for product design at Motorola.  I was tasked with conceiving viable applications for emerging technologies to be characterized into everyday devices that eventually flooded markets and became household familiarities. While that may sound like wishful thinking, I can truthfully report that some of the "New Ideas" that came from the Media Lab during that period 2001-2004 were E-Ink, Vision tracking, vehicle distance sensing, and audio beams; all of which have today landed into huge commercial applications and become parts of multi-million dollar industries.

So, while the photon-bounce assembled image of today's technology capability might seem like a blurry-blob only roughly recognizable, the breakthrough of re-assembling photon bounces into quazi recognizable image has been accomplished.  Amazing! To me, this sounds like the pre-cursor to the Enterprise's 4-pad Transporter.   Beam me up, Scotty!

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Software driving another new technology
naperlou   4/5/2012 9:37:52 AM
This reminds me of the Lytro light-field camera.  A clever detector arrangement collects lots of data and through the majic of software and image can be reconstructed that would not have been possible before. 

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Seeing Around Corners
apresher   4/5/2012 8:46:37 AM
Ann,  The technology is very impressive and interesting.  Will be interesting to see if there is enough commercial viability for the technology to become fully developed. Definitely a niche market.

Beth Stackpole
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Technology primed for first responders
Beth Stackpole   4/5/2012 8:19:08 AM
Pretty cool technology. I could see something like this coming into play for first responders to disasters like the Chilean mine incident or even for fire fighters. I'm admittedly not that up to date on vision systems, but I am surprised that there isn't more technology out like this already.

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