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New MIT Camera Takes 3D Photos in the Dark
smf28 writes "In a recent research paper published in Science, a team of researchers at MIT describe a new imaging technique that produces three-dimensional photos with only a single photon per pixel, using essentially one-hundredth the light of the best existing imaging technologies. The researchers say the technology could have a wide variety of low-light imaging applications from military to biological use."
No, "Dark" means not enough light to see well with the human eye. It's "Dark" even when the moons out. What you're talking about is called "Absolute Zero" and if the room were that "Dark" you'd have a lot more problems than just seeing.
This is a neat thing. There are several possible applications for a 1-photon sensitive ccd.
Firstly, (and sadly what will actually get them funding), it means ultra-tiny aperature size cameras are possibl. Since you don't need very many photons, we are talking "micrometer-sized" aperatures. Uncy sam can get his surveilence porn fix with super teeny tiny spy devices. Er... smaller even than they are now.
Secondly, it means "radically more sensitive astronomical sensors". Using a lense to "disperse" rather than concentrate light would allow a normal sized aperature to focus on absurdly distant objects with very high fidelity.
Eventually, consumer grade devices that never need a flash.
Possible uses as a precision light species assay tool for spectroscopy. (Depends on how sensitive to a waide variety of photon energies this 1-photon/pixel ccd tech is. If it is very wide, then it could be used to assay a wide spectral signature quickly, by measuring photon absorptions individually)
I am sure there would be many more. As a "3d scanner", the tech seems misapplied. I would much rather have a space telescope that can directly image distant exoplanets with an occulting disc to block out the target system's starlight than ÷ would some consumer crap that promises the world and a bag of chips, doing a function I really don't have a need for.
It's a LIDAR system. They shoot a laser at a pre-determined location and they measure the time it takes a single photon to hit their sensor. That's the distance part. They use some funky math to come up with a more detailed picture/model. The combination of the math and the fact that they only need one photon in a working apparatus makes this "special".
I was promised a flying car. Where is my flying car?
I don't know about the 3-D aspect, but the level of detail these guys can get back is crazy: http://www.nature.com/news/stealth-camera-takes-pictures-virtually-in-the-dark-1.14260 Compare the t-shirt text in the first and last images. It's almost like those shitty scenes in CSI where information seems to come from nowhere.
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