Autocalibration of an ad hoc construction of multi-projector displays

Takayuki Okatani, Koichiro Deguchi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

In this paper, we present a method for geometric calibration of a multi-projector display system. It enables easy calibration of the system such that the user needs only to take a picture of the projected images on the planar screen with a hand-held camera to accomplish entire calibration. Using the calibration method, one can realize a large high-resolution image display by placing multiple projectors on a desk etc. in an arbitrary manner. The calibration requires four or more projectors and includes not only alignment of the images but overall rectification of the stitched image. The problem to be solved is to recover the Euclidean structure of the system (at least partially); its difficulties arise from the fact that the intrinsics of the projectors, especially the focal lengths, need to be estimated along with other parameters. For the problem, we show uniqueness of solutions and several critical configurations, which were unclear in previous studies, and then present an algorithm. We present several experimental results that demonstrate the feasibility of the proposed method.

Original languageEnglish
Title of host publication2006 Conference on Computer Vision and Pattern Recognition Workshop
DOIs
Publication statusPublished - 2006 Dec 21
Event2006 Conference on Computer Vision and Pattern Recognition Workshops - New York, NY, United States
Duration: 2006 Jun 172006 Jun 22

Publication series

NameProceedings of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition
Volume2006
ISSN (Print)1063-6919

Other

Other2006 Conference on Computer Vision and Pattern Recognition Workshops
CountryUnited States
CityNew York, NY
Period06/6/1706/6/22

ASJC Scopus subject areas

  • Software
  • Computer Vision and Pattern Recognition

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