glass is light, light is through glass... what ever

[themoch]

my friend shared this, some of you may have seen it already... but it's freaking amazing and super freaking cool


http://www.ted.com/talks/ramesh_raskar_a_camera_that_takes_one_trillion_fra mes_per_second.html

photographing at the speed of light.

[H1JACK3R]

Very cool.

[ROGUE]

What an exciting time to be alive. I can't wait to see where this leads us.

[drewspuppet]

That was awesome. Thank you.

[Greymatter Glass]

The problem I have is that it's fake, or at least it's not exactly as it's being sold. The image of "a photon moving through a bottle" is a composite of hundreds or thousands of images. They pulse light onto a subject then take pictures that are slightly out of synch with the frequency of the pulse, and compile this video that would appear to track a single flash of light when in reality every frame is made up of dozens of pulses.

It's a parlor trick, something that doesn't require new technology or new skills - just a creative application of technique. You could argue that's all anything is, but really, the guy presenting this is obviously trying to sell it a radical groundbreaking new technology which it just isn't. It's an off (the MIT) Shelf high speed camera, a few photon sensors, a laser pulse generator, and a coke bottle full of some kind of ultra high density fluid that slows down light a very small bit.

I will grant that the use of computers to interpret light that's bounced around a corner is pretty cool.... what I want to know is, what preconception of the image did the computer have before interpreting the data? Did it know what basic form it was looking for? How many scans did it take to generate the data? I suspect it took thousands or even tens of thousands of images to compile some vague likeness of the wooden mad around the corner... If it took more than 2 or 3 then the technology has a long ways to go before it would be deployable in any kind of field setting.

[ROGUE]

I was under the impression that he newness wasn't the application, it was the fact that the frame rate has been bumped up one million times. He said in the video that the second part was just an impression of things to come, not actually technology yet.

I'm not a photography major or enen a hobbyist but isn't any moving image nothing more than a set of caputed images in time? If you can speed the capture you just see more detailed images of the time. I didn't realize that anybody had ever caught the image of light rippling like water as it moved. It was exciting for me either way because I have never seen or heard of anything like it.

[khan]

Seems he is using computers to make a mirror out of the door.
Seems just putting a mirror up would be alot easier and the image would be perfect.

[ROGUE]

Seems he is using computers to make a mirror out of the door.
Seems just putting a mirror up would be alot easier and the image would be perfect.

LOL! Kinda hard to shoot a mirror onto a surface at a distance.

[drewspuppet]

The problem I have is that it's fake, or at least it's not exactly as it's being sold. The image of "a photon moving through a bottle" is a composite of hundreds or thousands of images. They pulse light onto a subject then take pictures that are slightly out of synch with the frequency of the pulse, and compile this video that would appear to track a single flash of light when in reality every frame is made up of dozens of pulses.

It's a parlor trick, something that doesn't require new technology or new skills - just a creative application of technique. You could argue that's all anything is, but really, the guy presenting this is obviously trying to sell it a radical groundbreaking new technology which it just isn't. It's an off (the MIT) Shelf high speed camera, a few photon sensors, a laser pulse generator, and a coke bottle full of some kind of ultra high density fluid that slows down light a very small bit.

I will grant that the use of computers to interpret light that's bounced around a corner is pretty cool.... what I want to know is, what preconception of the image did the computer have before interpreting the data? Did it know what basic form it was looking for? How many scans did it take to generate the data? I suspect it took thousands or even tens of thousands of images to compile some vague likeness of the wooden mad around the corner... If it took more than 2 or 3 then the technology has a long ways to go before it would be deployable in any kind of field setting.


Come on though it's still pretty cool....

Btw Greymatter your avatar pic (which seems to have not change for years) .. is disturbing.:twitch: LOL/

[Grape]

Pretty cool man! For a product placement ad;)

[themoch]

The problem I have is that it's fake, or at least it's not exactly as it's being sold. The image of "a photon moving through a bottle" is a composite of hundreds or thousands of images. They pulse light onto a subject then take pictures that are slightly out of synch with the frequency of the pulse, and compile this video that would appear to track a single flash of light when in reality every frame is made up of dozens of pulses.

He totally says this about 5 min into the whole thing. But i'm just mesmerized by the whole thing just like i am by other highspeed camera footage.

Is it some ground breaking camera science? NOPE!

But it's damn cool to watch... yes they did not create a camera to go the speed of light, but they used some pretty cool trickery to see what light does along a particle path.

[themoch]

I also saw this really awesome video about how they're creating this really efficient way to extract pure hydrogen gas out of NOTHING BUT WATER!!!!

I'll email it to you douge
































:bouncy: