Dynamic Adaptation of Projected Imperceptible Codes

  • Authors:
  • Anselm Grundhöfer;Manja Seeger;Ferry Hantsch;Oliver Bimber

  • Affiliations:
  • Bauhaus-University Weimar. e-mail: grundhoe@uni-weimar.de;Bauhaus-University Weimar. e-mail: seeger@uni-weimar.de;Bauhaus-University Weimar. e-mail: haentsch@uni-weimar.de;Bauhaus-University Weimar. e-mail: bimber@uni-weimar.de

  • Venue:
  • ISMAR '07 Proceedings of the 2007 6th IEEE and ACM International Symposium on Mixed and Augmented Reality
  • Year:
  • 2007

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Abstract

In this paper we present an innovative adaptive imperceptible pattern projection technique that takes into account parameters of human visual perception. A coded image is temporally integrated into the projected image, which is invisible to the human eye but can be reconstructed by a synchronized camera. The embedded code is dynamically adjusted on the fly to guarantee its imperceptibility and to adapt it to the current camera pose. Linked with real-time flash keying, for instance, this enables in-shot optical tracking using a dynamic multi-resolution marker technique. A sample prototype has been realized that demonstrates the application of our method in the context of augmentations in television studios.