3D-hologram transmission technology is invented
Bringing back to memory a scene from the Star Wars when princess Leia addresses Obi-Wan Kenobi by means of hologram, let us pay attention to the technology realization. Soon such techniques will become popular all around.
These techniques will be encouraged by inventors from the University of Arizona. The American scientists managed to receive a renewable three-dimensional hologram which is visible without any special eyewear. At present the hologram has a vision angle as big as 45 degrees only. But developers are working over a new way of processing images which will allow watching holograms from different angles.
“Our system is capable to renew a hologram once within 2 seconds. Certainly, a normal video conference requires the image frequency of 30 images per second, nevertheless, that is a break, we managed to make a color image with full parallax attributes: an object can be watched from different angles and each spectator will see the related side of the object”, researcher of the University of Arizona, Kore Christensen, says.
To make a 3D-image, a system of 16 cameras is used. The cameras shot one and the same object from different angles, the obtained data are processed by a computer and transmitted through a digital channel to a special laser. The image is formed as a result of interaction of radiation and so-called holographic pixels on a plastic screen. Thus a new type of plastic allows considerably accelerating the process of renewal of the hologram.
Scientists are optimistic, they are sure they will be able to increase image reproduction frequency soon. As well the inventors are sure that their technology will become a basis for creation of three-dimensional holographic television within the next decade.
“Our main objective is creation of 3D-home television but so far we do not discuss this issue because the image renewal frequency is too low, nevertheless, such holograms can be used, for example, for maps simulation or advertising”, professor of the University of Arizona, Pierre-Alexandre Blanche, says.
3D-holograms are required not only by systems of three-dimensional visual communication and multimedia. For example, the holograms will be helpful for physicians. It will be possible to assemble a board of doctors from different countries of the world around a holographic patient, and surgeons will be able to take part in operations from far away. Moreover, this technology will allow engineers watching hazardous production processes over a distance.