Titre du document / Document title
DottyToto: A measurement engine for aligning multi-projector display systems
Auteur(s) / Author(s)
HERELD Mark (1 2) ;
JUDSON Ivan R. (1) ;
STEVENS Rick (1 2 3) ;
Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)
(1) Argonne National Laboratory, ETATS-UNIS
(2) Computation Institute, Argonne National Laboratory and The University of Chicago, ETATS-UNIS
(3) Dept. Of Computer Science, The University of Chicago, ETATS-UNIS
Résumé / Abstract
Tiled displays systems built by combining the images from arrays of projectors can provide huge numbers of pixel elements to applications needing to visually represent lots of information. Such applications are already coming into wide usage and include large scientific visualizations, collaborative virtual environments, and rich multimedia spaces. It is, however, difficult to create the illusion of a unified seamless display for a variety of reasons including optical distortion of the individual projector images due to imperfections in the lenses and basic alignment of the projectors. In this paper we describe an efficient and optimized measurement process using inexpensive components that is tolerant of a wide range of imperfections in components and measurement setup (lighting conditions, camera optics, etc.). Our method nonetheless is capable of accurate and detailed measurement of the layout of all projector images, including the generation of a detailed model of the distortions in each projector optical system. It performs these measurements on the entire array of projectors at once. Once the detailed mapping between projector pixels and mural pixels is measured, the resulting relations can be used in any of a number of ways to improve the appearance of images projected on the display.
Revue / Journal Title
SPIE proceedings series
Source / Source
Congrès
Projection displays IX :
(
Santa Clara CA, 22-23 January 2003
)
Projection displays. Conference N
o9, Santa Clara CA
, ETATS-UNIS
(22/01/2003)
2003
, vol. 5002, pp. 73-86[Note(s) : V, 166 p., ] [Document : 14 p.] (12 ref.)
ISBN 0-8194-4802-8 ;
Illustration : Illustration
;
Langue / Language
Anglais
Editeur / Publisher
Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, INTERNATIONAL
(1988)
(Revue)
SPIE, Bellingham WA, ETATS-UNIS
(2003)
(Monographie)
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Localisation / Location
INIST-CNRS, Cote INIST : 21760, 35400011776987.0090
Nº notice refdoc (ud4) : 15669866
