Automatic alignment of tiled displays for a desktop environment

Grant Wallace, Han Chen, Kai Li

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Tiling an array of projectors has become a practical way to construct a high resolution display system. Unfortunately, such high-resolution display systems have limited use because they require specially developed parallel visualization programs that run on a custom-designed parallel machine or a PC cluster. This paper presents an automatic alignment mechanism for arbitrarily tiled displays running a desktop environment so that users can run ordinary applications developed for desktop PCs. The system consists of three primary procedures: detecting projector misalignment, calculating corrective transformations, and real-time warping for the desktop environment. This allows users to run any 2D, 3D or video applications without modifications or special hardware support. Our experiments indicate that the system is able to achieve sub-pixel accuracy and achieve real-time warping with minimum system performance degradation.

Original languageAmerican English
Pages (from-to)1776-1786
Number of pages11
JournalRuan Jian Xue Bao/Journal of Software
Issue number12
StatePublished - Dec 1 2004
Externally publishedYes

ASJC Scopus subject areas

  • Software


  • Automatic alignment
  • Desktop environment
  • High-resolution display
  • Real-time warping
  • Tiled display

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