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New nanokamera able to make volumetric images of transparent objects
The exhibition Siggraph Asia, held in Hong Kong, was represented by 3D-nanokamera established laboratory staff Media Lab at the Massachusetts Institute of Technology (MIT). Presented camera can record 3D -video, and scope may include use in medical imaging, as a detector barriers for vehicles, as well as to improve the accuracy of devices that monitor traffic and recognizing gestures in interactive games.
The camera is based on the technology of Time of Flight, which is also used in the second generation of devices Microsoft Kinect, in which the location of the object is calculated based on how much time it takes to have a light signal path to the object and back. However, unlike the Kinect and similar devices for the first time allows new nanokamera generate accurate 3D-model of the object partially transparent to light, with multiple re-reflections from the faces or in motion, writes rdmag.com.
In normal cells sent a signal reflected from obstacles that trap sensors take the reflected signal and the system builds a three-dimensional image. But these cameras work hard in bad weather conditions or define translucent objects. The new camera is used to calculate the path of a special coding technique, which is used in telecommunication technologies. This method allows one to extract from the received signal information about several overlapping ways.
“Unlike existing devices based on this new camera technology can not deceive nor rain, nor fog, nor even translucent objects,” – says one of the authors of the project Achyut Kadamba (Achuta Kadambi).
New method works on the principle that work rehabilitation program blurred photos. New nanokamera probes objects using continuous wave signal, the frequency of which is a nanosecond. This allows the team to use inexpensive LEDs that can light up and go out with a period of a few nanoseconds.
Another important feature of this camera is its price, which is only $ 500, which is a bit for this kind of cameras. Perhaps in the future invention engineers MIT will be used in various fields of science and technology.
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Tags: 3D , MIT , cameras .
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