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Asynchronous distributed calibration for scalable and reconfigurable multi-projector displays.

Ezekiel S Bhasker1, Pinaki Sinha, Aditi Majumder

  • 1Department of Computer Science, University of California, Irvine, USA. ebhasker@ics.uci.edu

IEEE Transactions on Visualization and Computer Graphics
|November 4, 2006
PubMed
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This study introduces a new distributed method for calibrating large multi-projector displays. This approach enables scalable, self-reconfiguring displays without central control, improving flexibility and fault tolerance.

Area of Science:

  • Computer Vision
  • Display Technology
  • Distributed Systems

Background:

  • Traditional calibration of large multi-projector displays relies on centralized systems.
  • Centralized control limits scalability and reconfigurability of tiled display arrays.

Purpose of the Study:

  • To propose an asynchronous, distributed calibration methodology for multi-projector displays.
  • To enable scalable, reconfigurable, and fault-tolerant display systems.

Main Methods:

  • Introduced the plug-and-play projector (PPP), a self-sufficient module with integrated projector, camera, and computation.
  • Developed a single-program-multiple-data (SPMD) calibration algorithm for distributed execution on each PPP.
  • Implemented dynamic addition/removal of PPPs and automatic display reshaping.

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Main Results:

  • Achieved a truly scalable and reconfigurable multi-projector display without user intervention.
  • Demonstrated dynamic fault detection and system adaptation to hardware changes.
  • Successfully created an asynchronous distributed calibration architecture.

Conclusions:

  • The proposed asynchronous distributed calibration methodology offers a novel solution for large-scale display systems.
  • This approach enhances flexibility, scalability, and robustness compared to centralized methods.
  • Paves the way for future self-sufficient and adaptive display technologies.