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Issue No.01 - January/February (2008 vol.14)
pp: 84-96
<p><b>Abstract</b>—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 headtracking 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 multi-view 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.</p>
virtual reality, display algorithms, projector calibration, image-based rendering
Ruigang Yang, Xinyu Huang, Sifang Li, Christopher Jaynes, "Toward the Light Field Display: Autostereoscopic Rendering via a Cluster of Projectors", IEEE Transactions on Visualization & Computer Graphics, vol.14, no. 1, pp. 84-96, January/February 2008, doi:10.1109/TVCG.2007.70410
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