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Toward the Light Field Display: Autostereoscopic Rendering via a Cluster of Projectors

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4 Author(s)
Ruigang Yang ; Univ. of Kentucky, Lexington ; Xinyu Huang ; Sifang Li ; Jaynes, C.

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.

Published in:

Visualization and Computer Graphics, IEEE Transactions on  (Volume:14 ,  Issue: 1 )

Date of Publication:

Jan.-Feb. 2008

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