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A spatial imaging type of three-dimensional (3D) television system*1 would be able to present, without special glasses, 3D images that are so realistic that it seems as if the actual object is in front of the observer.
This exhibit presents our research on integral 3D television*2 that has a wide viewing area*3 and a technology to present 3D images by generating a hologram*4 through integral photography.
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- Integral 3D television captures and displays an object that can be seen in a wide viewing area, and it requires a higher definition video technology than the current Hi-Vision (HDTV) format. We constructed a prototype integral 3D television system that uses a Super Hi-Vision (SHV) camera and projector. Its viewing area has been expanded to nearly double that of the previous prototype so that the 3D image can be seen by multiple observers simultaneously.
- While holography enables faithful reproduction of a 3D image based on a hologram, a laser beam is needed to acquire the holographic data. Therefore, we developed a technology to convert the images taken in the integral 3D scheme into holograms, making it possible to use holography to present 3D moving pictures taken under natural light.
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We will improve the integral 3D television's image resolution and the presentation of moving picture holograms based on real video images.
Research on integral 3D television is being jointly carried out with Victor Company of Japan, Ltd., as part of the project titled "Research and development of multi-parallel & spatial imaging three-dimensional television system" commissioned by the National Institute of Information and Communications Technology (NICT).
Research on holography is being conducted with NICT.
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*1 Spatial imaging type 3D television : A television system that reproduces the optical beams from an object to allow an observer to see a 3D reproduced image in the same way one sees an actual object.
*2 Integral 3D television : Integral 3D television refers to the application of an integral photographic technology that reproduces a 3D images by using micro-lens arrays for both imaging and display.
*3 Viewing area : The range through which the viewing point (the position of the eyes) can be moved while watching a 3D image.
*4 Hologram : The fringe pattern formed by the light beam from an object and a separate beam, called a reference beam.
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Integral 3D Television system |
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