Abstract
We describe a new architecture composed of software and hardware for displaying stereoscopic images over a horizontal surface. It works as a ``Virtual Table and Teleporter'', in the sense that virtual objects depicted over a table have the appearance of real objects. This system can be used for visualization and interaction. We propose two basic configurations: the Virtual Table, consisting of a single display surface, and the Virtual Teleporter, consisting of a pair of tables for image capture and display. The Virtual Table displays either 3D computer generated images or previously captured stereoscopic video and can be used for interactive applications. The Virtual Teleporter captures and transmits stereoscopic video from one table to the other and can be used for telepresence applications. In both configurations the images are properly deformed and displayed for horizontal 3D stereo. In the Virtual Teleporter two cameras are pointed to the first table, capturing a stereoscopic image pair. These images are shown on the second table that is, in fact, a stereoscopic display positioned horizontally. Many applications can benefit from this technology such as virtual reality, games, teleconferencing, and distance learning. We present some interactive applications that we developed using this architecture.
Highlights
The stereoscopic technology is getting more and more common nowadays, and as a consequence this kind of technology is becoming cheaper and widely accessible to people in general [1], [2].Most stereoscopic applications use simple adaptations of non-stereoscopic concepts in order to give the observer a sense of depth
If the stereoscopic projections of an object cross the top border, but do not cross the laterals, the scene will not be well accepted by the observer either, the stereoscopic pair corresponds to a 3D scene
The main contribution of this paper is to introduce a new architecture, composed of software and hardware that works as a “Virtual Table – Teleporter”
Summary
The stereoscopic technology is getting more and more common nowadays, and as a consequence this kind of technology is becoming cheaper and widely accessible to people in general [1], [2]. If the stereoscopic projections of an object cross the top border, but do not cross the laterals, the scene will not be well accepted by the observer either, the stereoscopic pair corresponds to a 3D scene In this case, the problem is that the border limitation corresponds to a 3D cut in the object, that makes the top of the projection be perfectly aligned with the top border of the screen. 3D stereo movies adopt the classic film language used for 2D films As a consequence, it employs different framing techniques, such as close-ups, and medium and long shots that cause the objects in a scene to change size relative to the screen. The technology presented can be used to capture and display (in a scaled down fashion) a theater play, a sports match (such as tennis, basketball, etc.), or any other event that takes place in a horizontal field
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