Abstract
We developed a video system with properties of binocular vision and motor vision, that is designed following the specification of appropriate position arrangement of cameras and CRT display.
The property of binocular vision is realized in the system by means of a pair of video cameras and a pair of liquid crystals. The directions of two cameras are set in appropriate way. Two images from video cameras-one is for right eye and the other for left eye-are displayed alternately on CRT display which viewers observe through synchronous optical shutters.
The property of motor vision is realized by means of supersonic sensors and a single dimensional camera-shifting mechanism with stepping-motor. Supersonic generating element is attached on the viewer's head and the supersonic wave from it is received by a pair of receiving elements attached on the top of CRT display. From the phase difference of two waves, the right-left motion of viewer's head is computed, which specifies the corresponding shifting of two video cameras.
We introduced the mapping from the space of real scene to the space of display image to discuss the geometric distortion of 3-D image constructed by binocular and motor properties. And we show qualitatively that the distortion is reduced, in our method, by means of appropriate position arrangement and shift mechanism of video cameras.
In our trial system, the motion of viewer is assumed to be right-left only. But the system can be extended simply for also up-down motion and forward-backward motion. In order to treat the latter motion, auto-zoom mechanism is required in cameras.
