Laser Camera Can See Around Corners

Hugh Pickens writes "Researchers at MIT have developed a laser camera that can 'see' around corners and take pictures of a scene not in its direct line of sight. The camera system fires extremely short bursts of light that can reflect off one object, such as the open door of a room, and then off a second object inside the room before reflecting back to the first object and being captured by the camera, after which algorithms can use the information to reconstruct the hidden scene exploiting the fact that it is possible to capture light at extremely short time scales, about one quadrillionth of a second. By continuously gathering light and computing the time and distance that each pixel has traveled, the camera creates a '3D time-image' of the scene it can't directly see. 'It's like having X-ray vision without the X-rays,' says Professor Ramesh Raskar. 'We're going around the problem rather than going through it.'"

Comments

Re:No images

[HateBreeder]

Try this:
http://www.bbc.co.uk/news/technology-11544037

Here's a link to the actual MIT site...

[Anonymous Coward]

http://web.media.mit.edu/~raskar/femto/

Enough of Slashdot's SEO link farming spammy shit. Here's what you want to read, unless you like your science news dumbed down to a third grade level.

hearsay

[ei4anb]

Slashdot says that UPI.com said that physorg.com said that Tech Radar said that MIT said that there is an interesting paper at http://dspace.mit.edu/bitstream/handle/1721.1/58402/656284100.pdf?sequence=1 and the BBC went to learn more, conduct an interview and take photos http://www.bbc.co.uk/news/technology-11544037

Re:How Fast Are Pixels?

[natehoy]

Do pixels travel at the speed of light?

Depends on your refresh rate.

I wonder what it feels like to get hit by a pixel.

Depends on the resolution, and of course the refresh rate which determines velocity. Set a 24" monitor to 1x1 resolution with a 100MHz refresh rate, and it hurts like hell. Set it ag 32,700 x 27,000, not so much, unless you get hit by all of the pixels or the pixel you are hit by is at a very high refresh rate.

Are they larger or smaller than a photon?

Larger, silly, they're made of pixel dust.