Object-oriented displays: a new type of display systems-from immersive display to object-oriented displays

摘要

We propose the concept of the "object-oriented display", which should enable an operator to perceive and operate a virtual object as if it were a real one. The object-oriented display (OOD) is a type of display system in which the surfaces of the display surround the object and not the operator. The purpose of the OOD is the presentation of virtual objects, whereas the purpose of ordinary display systems is the presentation of the virtual environment. In this project, we also describe the design and implementation of three types of object-oriented displays, (i) MEDIA-A (MEDIA-Ace), (ii) MEDIA/sup 3/ (MEDIA-Cube) and (iii) MEDIA X'tal (MEDIA-Crystal). MEDIA-A is a type of object-oriented display that is compact, light, and inexpensive. It consists of a single LCD panel and a tilt sensor. MEDIA/sup 3/ consists of four LCD panels in the shape of a cubic body. A position and orientation sensor is installed in MEDIA/sup 3/. Using MEDIA/sup 3/, a virtual object is adequately displayed by controlling the image displayed on each LCD panel, corresponding to the position of the operator's head. Thus, the virtual object appears in MEDIA/sup 3/ in its entirety. Therefore, the operator can recognize easily and intuitively the three-dimensional form and structure of the virtual object. For MEDIA X'tal, on the other hand, we use optical projection. The MEDIA X'tal solves several problems which occur when using ordinary display devices for the OOD.