The current 3D imaging technology has already been put to practical use.
However, 3D imaging with an enhanced sense of reality, where people far
away seem to be nearby, is being studied, as a future communication technology.
The basic concept of the current 3D technology is to deceive the stereognostic
senses of people. , stereognostic sensation using several senses such as parallax, focus adjustment,
and focus convergence of eyes.
As the current 3D imaging technology stimulates parts of several senses,
it is believed that asthenopia may be caused by viewing and listening to
images over long periods of time. Furthermore, it is believed that optic
developmental disability is caused in infants who watch 3D images. Holographic
technology has a history of half a century and is fundamentally different
from conventional 3D technology. Holography completely reproduces the light
that is photographed by the subject. As a result, we do not require glasses.
Furthermore, it stimulates all the human stereognostic senses and we can
see hidden areas when we move the angle of view, .
|About computer holography
Classic optical holography is based on photographic technology. In other
words it is the technology of photographing stereognostic pictures of the
subject using a film of high resolution. Hence it is impossible to display
an aerial view of objects, as is easily accomplished by computer graphics,
or to transmit the pictures through the network and record them on digital
media, unlike digital images. Computer holography completely digitizes
the optical holography. The above processing, previously impossible by
classic optical holography, becomes possible by computer holography. Therefore,
it is the ultimate digital imaging technology. However, the scale of the
necessary data handling is too vast to put it into practice. In addition,
because physical resolution at the micron level is necessary for reproduction,
until recently, we were unable to actually form a computer holographic
image with a pleasant appearance.
in this project, we developed a technique to calculate holographic images
using a method of handling data of superlarge scale, and successfully created
beautiful holographic images by laser lithography. This 3D computer holographic
image is a static image reproduced with a single color. However, the natural
3D image with a greater feeling of depth fundamentally different from the
conventional 3D images will surprise the observer, .