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Proceedings Paper

Enhancing multi-view autostereoscopic displays by viewing distance control (VDC)
Author(s): Silvio Jurk; Bernd Duckstein; Sylvain Renault; Mathias Kuhlmey; René de la Barré; Thomas Ebner
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Paper Abstract

Conventional multi-view displays spatially interlace various views of a 3D scene and form appropriate viewing channels. However, they only support sufficient stereo quality within a limited range around the nominal viewing distance (NVD). If this distance is maintained, two slightly divergent views are projected to the person’s eyes, both covering the entire screen. With increasing deviations from the NVD the stereo image quality decreases. As a major drawback in usability, the manufacturer so far assigns this distance. We propose a software-based solution that corrects false view assignments depending on the distance of the viewer. Our novel approach enables continuous view adaptation based on the calculation of intermediate views and a column-bycolumn rendering method. The algorithm controls each individual subpixel and generates a new interleaving pattern from selected views. In addition, we use color-coded test content to verify its efficacy. This novel technology helps shifting the physically determined NVD to a user-defined distance thereby supporting stereopsis. The recent viewing positions can fall in front or behind the NVD of the original setup. Our algorithm can be applied to all multi-view autostereoscopic displays — independent of the ascent or the periodicity of the optical element. In general, the viewing distance can be corrected with a factor of more than 2.5. By creating a continuous viewing area the visualized 3D content is suitable even for persons with largely divergent intraocular distance — adults and children alike — without any deficiency in spatial perception.

Paper Details

Date Published: 6 March 2014
PDF: 9 pages
Proc. SPIE 9011, Stereoscopic Displays and Applications XXV, 90111C (6 March 2014); doi: 10.1117/12.2040755
Show Author Affiliations
Silvio Jurk, Fraunhofer-Institut für Nachrichtentechnik, Heinrich-Hertz-Institut (Germany)
Bernd Duckstein, Fraunhofer-Institut für Nachrichtentechnik, Heinrich-Hertz-Institut (Germany)
Sylvain Renault, Fraunhofer-Institut für Nachrichtentechnik, Heinrich-Hertz-Institut (Germany)
Mathias Kuhlmey, Fraunhofer-Institut für Nachrichtentechnik, Heinrich-Hertz-Institut (Germany)
René de la Barré, Fraunhofer-Institut für Nachrichtentechnik, Heinrich-Hertz-Institut (Germany)
Thomas Ebner, Fraunhofer-Institut für Nachrichtentechnik, Heinrich-Hertz-Institut (Germany)


Published in SPIE Proceedings Vol. 9011:
Stereoscopic Displays and Applications XXV
Andrew J. Woods; Nicolas S. Holliman; Gregg E. Favalora, Editor(s)

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