Camera that Sees through Smoke and Fog Underway 220
tomschuring writes "The Age has a story about IATIA, who have been given $2.7 million by the Defence Department to fund development of a military spy camera capable of seeing through fog, smoke and dust storms. The technology uses a highly sophisticated camera that captures three images simultaneously through a single lens. Images thus resolved from between the particles making up fog, smoke, and dust storms are formed into a single picture of the hidden target."
Warning: Registraton Required (Score:5, Informative)
Username: registrationsucks1 Password: asdoestheage
Unused links on how it works - some detail (Score:5, Informative)
http://www.iatia.com.au/technology/insideQpi.as
http://www.iatia.com.au/technology/applicationN
he algorithm has a number of key advantages, including:
* Returns phase and intensity information independently
* Provides quantitative, absolute phase (with DC offset)
* Is a rapid, stable, non-iterative solution
* Works with non-uniform and partically coherent illumination
* Offers relaxed beam conditioning
* Solves the twin image problem of holography
* Has been experimentally applied to a number of radiations
You can find their list of patents on theire site. Digging into these should give you more detail.
I don't care I am going on holidays for 3 weeks in 3hours
Okay, pervs, here's what you want (Score:3, Informative)
Blatantly stealing my parent post's material... (Score:2, Informative)
http://www.iatia.com.au/technology/insideQpi.asp [iatia.com.au]
http://www.iatia.com.au/technology/applicationNot
Re:interesting but (Score:2, Informative)
As far as I can tell, the three images are taken slightly out of focus from each other. One is in focus, and the other two are positively and negatively defocused.
You then use fourier analysis to take the difference in phase of the images viewed from the three lenses and produce a "cleaned up" image where as much of the stuff that is shifting the light frequency is removed.
Re:also (Score:3, Informative)
"IIRC Sony accidentaly did that. If you engaged the night vision you could see through clothing.
You also needed an IR pass filter [advanced-i...igence.com] to do that, but otherwise you are correct.
"However, I think they recalled all the cameras that were capable of this.
I don't think they recalled them, they just stopped making them like that.
Re:also (Score:5, Informative)
Re:density (Score:5, Informative)
I guess this could be used on cars given enough processor speed, but it's really not applicable in this case, as it yields additional information about something in a plane (parallel to the sensor of the imaging device -- imagine a brick wall ahead of you when driving). When driving, the plane, say, 50m ahead of the car is moving just as fast as you are, and seeing ultra-crisp images of that plane for the instant that it is 50m ahead would be of dubious utility imo.
Re:Warning: Registraton Required (Score:1, Informative)
Re:Nope (Score:2, Informative)
Re:Article is short on details (Score:1, Informative)
Re:Parallax (Score:2, Informative)
Re:Better solution (Score:2, Informative)
Re:also (Score:5, Informative)
Nearly all CCD cameras are sensitive to infrared. You can test IR emitters by pointing a camcorder at them and watching for the flashes. I made a very effective IR surveillance camera by popping the front off the lens of a Philips Vesta Pro webcam (get the blade of a table knife into the little groove a couple of mm back from the front and twist) and removing the IR filter.
OASys (Score:5, Informative)
In college my clinic team worked with Northrop Electronic Systems on their OASys project, or Obstacle Avoidance System. It was a laser + computer navigation system that would scan the horizon through smoke or other aerosols and generate a "safe passage" navigation image to the helicopter pilot using it. Supposedly it worked pretty well (they were still working on it after our 9 months on our piece of the project). It was basically a rotating laser optics assembly that would trace a cone in space, and the assembly would scan in the horizontal plane to yield the losenge shape (they used that term).
Here's a funny little twist. When we went to the site to visit the developers of the project at Northrop, we stopped off in a meeting room that had on one of the walls a poster for the OASys project, featuring a helicopter with a losenge-shaped window of visibility depicted against some trees with some smoke and other debris in the air.
Nearby on the same wall was another poster for a weapon system, the name of which escapes me. It was the same poster, but in the middle of the losenge-shaped window of visibility was a little gunsight, and I think the helecopter had some weapons slung.
We asked our liason person whether the two projects were related, and he assured us they were completely different as we were brought to another area.
Our professor on the project was a Yugoslavian National, and this was in 1992, so you can imagine how fun the rest of our visit was when they found that out....
Re:density (Score:3, Informative)
Re:also (Score:5, Informative)
I found this site [kaya-optics.com] about 6 years ago...
they sell the filters, and give a good run-down on the theory.
Re:Two uses immediately come to mind: (Score:3, Informative)
As long as there is ground visibility, taking off is the easy part. It's landing that'll kill ya if you're not careful. In other words, as long as you have some visibliity to taxi and roll down a runway, you can easily get into the air. The problem is, getting safely back on the ground.
Re:Already exists (Score:2, Informative)
Generally they aren't restricted by particles in the air until the particles get large enough to block the infrared. In some situations the we can actually find the victim based upon their body temperature being cooler than ambient, rather than warmer than ambient. Also a good trick with the modern TICs is that you can put your hand on a window for a few seconds, pull it off, and you scan still see the shape of the hand in the warmth on the window.