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Proceedings Paper

A geometry calibration and visual seamlessness method based on multi-projector tiled display wall
Author(s): Yahui Liu; Qingxuan Jia; Hanxu Sun; Jie Su; Jinling Zhang
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Paper Abstract

Multi-projector virtual environment based on PC cluster has characteristics of low cost, high resolution and widely visual angle, which has become a research hotspot in Virtual Reality application. Geometric distortion calibration and seamless splicing is key problems in multi-projector display. The paper does research on geometry calibration method and edge blending. It proposes an automatic calibration preprocessing algorithm based on a camera, which projects images to the regions expected in terms of the relation between a plane surface and a curved surface and texture mapping method. In addition, overlap regions, which bring about intensity imbalance regions, may be adjusted by an edge blending function. Implementation indicates that the approach can accomplish geometry calibration and edge blending on an annular screen.

Paper Details

Date Published: 19 January 2009
PDF: 6 pages
Proc. SPIE 7242, Image Quality and System Performance VI, 72421C (19 January 2009); doi: 10.1117/12.805803
Show Author Affiliations
Yahui Liu, Beijing Univ. of Posts and Telecommunications (China)
Beijing Information Science and Technology Univ. (China)
Qingxuan Jia, Beijing Univ. of Posts and Telecommunications (China)
Hanxu Sun, Beijing Univ. of Posts and Telecommunications (China)
Jie Su, Harbin Univ. of Science and Technology (China)
Harbin Engineering Univ. (China)
Jinling Zhang, Beijing Univ. of Posts and Telecommunications (China)

Published in SPIE Proceedings Vol. 7242:
Image Quality and System Performance VI
Susan P. Farnand; Frans Gaykema, Editor(s)

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