In this paper we describe our implementations of multi-user stereo systems based on shuttered LCD-projectors and polarization. The combination of these separation techniques allows the presentation of more than one stereoscopic view on a single projection screen. We built two shutter configurations and designed a combined LC-shutter/polarization setup. Our first test setup was a combination of ...

Large-scale immersive displays have an established history in planetaria and large-format film theaters. Video-based immersive theaters are now emerging, and promise to revolutionize group entertainment and education as the computational power and software applications become available to fully exploit these environments. Requirements for an effective visual display are developed. Limitations o...

Over the years, the film industry has seen cyclical changes in the range of screen sizes, some dictated by film format, and some by exhibition economics. The small screens of the 1930s were eclipsed by the large-format screens of the 1950s; today, the “pillbox” screens of the 1970s are being supplanted by relatively huge screens for 35 mm film projection. The impact of large screens for audienc...

We present an uncalibrated projector-camera system in which the information displayed onto a planar screen can be interactively warped according to an arbitrary planar homography. The user interacts with the system through a laser pointer, whose displacements on the screen plane are captured by the camera, interpreted as mouse drags, and used to control the warping process. Applications of our ...

Real time computer graphics are limited in that they can only be displayed on projection screens and monitors. Monitors and projection screens cannot be used in live fire training or scenarios in which the displays could be physically damaged by trainees. To address this issue, we have developed projection systems using computer vision based color correction and image processing to project onto...

In order to learn more about the cause of coronary heart diseases and develop diagnostic tools, the extraction and visualization of vascular structures from volumetric scans for further analysis is an important step. By determining a geometric representation of the vasculature, the geometry can be inspected and additional quantitative data calculated and incorporated into the visualization of t...

We have developed an application of a full-body, noncontact gesture interface for exploring cyberspace that provides immersive walk-through and information accessing capabilities. The VisTA-walk system is designed for use at the museum exhibitions where easy, durable, and pleasurable user interface is preferable. It uses a large projection screen for immersive cyberspace presentation. VisTA-wal...

We aim to create a model of emotional reactive virtual humans. This model will help to define realistic behavior for virtual characters based on emotions and events in the Virtual Environment to which they react. A large set of pre-recorded animations will be used to obtain such model. We have defined a knowledge-based system to store animations of reflex movements taking into account personali...

This work presents a head-motion-parallax visualization system for arbitrarily complex computer graphics databases (such as biomedical data sets) using precomputed images. It features a large rear-projection screen and a blind restricting the range of possible vantage points. We describe implementation details for the high-resolution low-lag prototype system and relate first reactions from users.

Virtual Reality technologies have been successfully incorporated into the learning processes and potential new applications in education are explored continuously. We found that one of the difficulties to popularize its use in the educational context, in countries with emerging and developing economies, is the cost of hardware required to generate satisfactory immersive experience. In this work...