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  • 770 Fotografie, Computerkunst

770 Fotografie, Fotografien, Computerkunst

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Dynamic Adaptation of Projected Imperceptible Codes (2007)
Grundhöfer, Anselm ; Seeger, Manja ; Häntsch, Ferry ; Bimber, Oliver
In this paper we present a novel adaptive imperceptible pattern projection technique that considers parameters of human visual perception. A coded image that is invisible for human observers is temporally integrated into the projected image, but can be reconstructed by a synchronized camera. The embedded code is dynamically adjusted on the fly to guarantee its non-perceivability 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 is realized that demonstrates the application of our method in the context of augmentations in television studios.
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