We have found novel perceptual phenomena for developing a three-dirnensional(3-D)display by using only two 2-D images displayed at different depths. It enables an observer using no extra equipment to perceive an apparent 3-D image of continuous depth when the luminance is divided between the two 2-D images according to the 3-D image depth. We have also developed a prototype 3-D display by applying the phenomena to several 2-D images. It can easily produce moving 3-D color images by using color conventional 2-D displays.
The various researches of the flame representation with CG have performed. But there are few researches that focus attention the relation between the flame and the combustible object. Then, we represent the deformation of the object With the combustion by CG. Before starting the experiment, we observe the scene of the combustion in the real world, and assume the deformation and the color-change rule for the representation.
We have studied a basic technical approach to the realization of the 3D TV system applying holography technique using liquid crystal display(LCD)panels. Here we will propose a new method for realizing a color holography 3D TV system making use of only one white light source without employing three color laser lights. In our method, a metal halide lamp which has good specifications in each band of the wavelengths of the color components was adopted. The light components required for the reconstruction are extracted by the color separation using mirrors, and then, the 3D images are reconstructed by composing through the prisms the lights filtered out by the hologram formed on the LCD panels. Comparing with the usual reconstructing method using three color lasers^<2)-4)> our approach seems to have a property that clear color 3D images are simply to be reconstructed with a low cost.
For practical interactive holographic television display, it is important to calculate holographic fringes as fast as possible. An expensive super computer is often used to achieve high-speed computation. Authors have proposed the difference calculatidn method which is able to perform high-speed computation with a personal computer. The obtained display interval is about one second, which is quite faster than previous result. However, it is still slow for interactive operation. In this paper, we combine the difference method and the thinning out information reduction. Large information reduction increases the computational speed with the sacrifice of image quality. Therefore, we apply information reduction only while the displayed image is moving. With the proposed method, about three times speed up is achieved. We use DirectDraw for quick interpolation of the thinning out data.
We studied the enlargement of viewing zone concerning a holography that has a sampled hologram by pixels and introduces a lens for reproducing 3-D images. We describe that higher-order reconstructed image reproduced from the fringe patterns containing aliasing components can be equivalent to original object. It is also shown that the viewing zone angle can be enlarged by the combination of these higher-order reconstructed images.