Advances towards next-generation flexible multi-projector display walls

ABSTRACT

Multi-projector displays provide a large-scale and a high-resolution view at the same time. Today, projectors are commodity products, making such displays are affordable, but several challenges must be overcome in order to make this technology available to everyday users. We present several advances in the area of multiprojector displays. These employ projectors with enhanced capabilities, methodologies for efficiently and inexpensively calibrating and maintaining displays composed of these units, and the ability to handle imperfect and uncalibrated devices when performing geometric and photometric registration of imagery across multiple projectors. These are the first steps in realizing the goal of truly ubiquitous pixels, where users can be completely oblivious to the type and number of devices providing the display.

REFERENCES

• 1: Bhasker, E. S., and Majumder, A. 2007. Geometric modeling and calibration of planar multi-projector displays using rational bezier patches. Proceedings of the IEEE International Workshop on Projector-Camera Systems tbd, tbd, tbd.
• 2: Ezekiel S. Bhasker , Pinaki Sinha , Aditi Majumder, Asynchronous Distributed Calibration for Scalable and Reconfigurable Multi-Projector Displays, IEEE Transactions on Visualization and Computer Graphics, v.12 n.5, p.1101-1108, September 2006 [doi>10.1109/TVCG.2006.121]
• 3: Han Chen , Rahul Sukthankar , Grant Wallace , Kai Li, Scalable alignment of large-format multi-projector displays using camera homography trees, Proceedings of the conference on Visualization '02, October 27-November 01, 2002, Boston, Massachusetts
• 4: Juang, R., and Majumder, A. 2007. Photometric self-calibration of a projector-camera system. Proceedings of the IEEE International Workshop on Projector-Camera Systems tbd, tbd, tbd.
• 5: Aditi Majumder , Rick Stevens, Perceptual photometric seamlessness in projection-based tiled displays, ACM Transactions on Graphics (TOG), v.24 n.1, p.118-139, January 2005 [doi>10.1145/1037957.1037964]
• 6: Ramesh Raskar , Jeroen van Baar , Paul Beardsley , Thomas Willwacher , Srinivas Rao , Clifton Forlines, iLamps: geometrically aware and self-configuring projectors, ACM Transactions on Graphics (TOG), v.22 n.3, July 2003
• 7: Maureen C. Stone, Color and Brightness Appearance Issues in Tiled Displays, IEEE Computer Graphics and Applications, v.21 n.5, p.58-66, September 2001
• 8: Michael Brown , Aditi Majumder , Ruigang Yang, Camera-Based Calibration Techniques for Seamless Multiprojector Displays, IEEE Transactions on Visualization and Computer Graphics, v.11 n.2, p.193-206, March 2005 [doi>10.1109/TVCG.2005.27]

INDEX TERMS

Primary Classification:
  I. Computing Methodologies
  I.3 COMPUTER GRAPHICS
      I.3.3 Picture/Image Generation
          Subjects: Display algorithms

Additional Classification:
  I. Computing Methodologies
  I.3 COMPUTER GRAPHICS
      I.3.3 Picture/Image Generation
          Subjects: Viewing algorithms

Keywords:
geometric calibration, multi-projector displays, photometric calibration, reconfigurable displays, tiled displays, ubiquitous pixels