Ultimately, a display device should be capable of reproducing the visual effects observed In reality. In this paper, we introduce an autostereoscopic display that uses a scalable array of digital light projectors and a projection screen augmented with microlenses to simulate a light field for a given three-dimensional scene. Physical objects emit or reflect light in all directions to create a light field that can be approximated by the light field display. The display can simultaneously provide many viewers from different viewpoints a stereoscopic effect without head tracking or special viewing glasses. This work focuses on two Important technical problems related to the light field display: calibration and rendering. We present a solution to automatically calibrate the light field display using a camera and introduce two efficient algorithms to render the special multiview images by exploiting their spatial coherence. The effectiveness of our approach is demonstrated with a four-projector prototype that can display dynamic Imagery with full parallax.
|Number of pages||13|
|Journal||IEEE Transactions on Visualization and Computer Graphics|
|State||Published - Jan 2008|
Bibliographical noteFunding Information:
The authors would like to thank Leonard McMillan for inspiring this project. This work is supported in part by the University of Kentucky Research Foundation, the US Department of Homeland Security, and US National Science Foundation Grant IIS-0448185.
- Display algorithms
- Image-based rendering
- Projector calibration
- Virtual reality
ASJC Scopus subject areas
- Signal Processing
- Computer Vision and Pattern Recognition
- Computer Graphics and Computer-Aided Design