Clutter-aware adaptive projection inside a dynamic environment

ABSTRACT

This paper presents a framework for a computationally adaptive projection metaphor using a handheld projector inside a dynamic cluttered environment. In addition to conventional self-correcting projection features, the framework uses multiple clutter tracking and adaptive target generation to define the clutter-aware target area for projection in a reliable manner. Using a paired projector-camera system, the framework first builds high spatial frequency feature maps using a Laplacian pyramid approach. The feature maps are then passed to a rejection step to eliminate spurious features caused by contents of the projected image. After the resulting features representing clutters are processed by the appropriated design tracker, the target area for projection is generated. Finally, the desired information for projection is rendered and sent back to the projector. The framework can be used effectively for a clutter-aware handheld projector-based system without the need for a complex hardware setup or with any prior need to clean up the environment.

REFERENCES

• 1: Burt, P. J. and Adelson, E. H. 1983. The Laplacian pyramid as a compact image code. In IEEE Transactions on Communications 1983.
• 2: Ng, W., Li, J., Godsill, S. and Vermaak, J. 2005. A hybrid approach for online joint detection and tracking for multiple targets. In Proceedings of IEEE Aerospace Conference 2005.
• 3: Sukthankar, R., Stockton, R. G. and Mullin, M. D. 2001. Smarter presentations: Exploiting homography in camera-projector systems. In Proceedings of International Conference on Computer Vision (ICCV) 2001.

INDEX TERMS

Primary Classification:
  I. Computing Methodologies
  I.4 IMAGE PROCESSING AND COMPUTER VISION
      I.4.8 Scene Analysis

Additional Classification:
  H. Information Systems
  H.5 INFORMATION INTERFACES AND PRESENTATION (I.7)
      H.5.2 User Interfaces (D.2.2, H.1.2, I.3.6)

  I. Computing Methodologies
  I.4 IMAGE PROCESSING AND COMPUTER VISION
      I.4.9 Applications

Keywords:
adaptive projection, clutter-aware, handheld projector, laplacian pyramids, multiple target tracking, particle filters