Automatic Alignment Of High-Resolution Multi-Projector Displays Using An Un-Calibrated Camera

Automatic Alignment Of High-Resolution Multi-Projector Displays Using An Un-Calibrated Camera: "Automatic Alignment Of High-Resolution Multi-Projector Displays Using An Un-Calibrated Camera
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Source VISUALIZATION archive
Proceedings of the 11th IEEE Visualization 2000 Conference (VIS 2000) table of contents
Year of Publication: 2000
ISBN:0-7803-6478-3
Authors
Yuqun Chen
Douglas W. Clark
Adam Finkelstein
Timothy Housel
Kai Li
Publisher
IEEE Computer Society Washington, DC, USA
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ABSTRACT

A scalable, high-resolution display may be constructed by tilingmany projected images over a single display surface. One fundamentalchallenge for such a display is to avoid visible seams dueto misalignment among the projectors. Traditional methods foravoiding seams involve sophisticated mechanical devices and expensiveCRT projectors, coupled with extensive human effort forfine-tuning the projectors. This paper describes an automatic alignmentmethod that relies on an inexpensive, uncalibrated camera tomeasure the relative mismatches between neighboring projectors,and then correct the projected imagery to avoid seams without significanthuman effort.
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