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Unsynchronized 4D Barcodes

  • We present a novel technique for optical data transfer between public displays and mobile devices based on unsynchronized 4D barcodes. We assume that no direct (electromagnetic or other) connection between the devices can exist. Time-multiplexed, 2D color barcodes are displayed on screens and recorded with camera equipped mobile phones. This allows to transmit information optically between bothWe present a novel technique for optical data transfer between public displays and mobile devices based on unsynchronized 4D barcodes. We assume that no direct (electromagnetic or other) connection between the devices can exist. Time-multiplexed, 2D color barcodes are displayed on screens and recorded with camera equipped mobile phones. This allows to transmit information optically between both devices. Our approach maximizes the data throughput and the robustness of the barcode recognition, while no immediate synchronization exists. Although the transfer rate is much smaller than it can be achieved with electromagnetic techniques (e.g., Bluetooth or WiFi), we envision to apply such a technique wherever no direct connection is available. 4D barcodes can, for instance, be integrated into public web-pages, movie sequences or advertisement presentations, and they encode and transmit more information than possible with single 2D or 3D barcodes.show moreshow less

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Metadaten
Document Type:Preprint
Author: Tobias Langlotz, Prof. Dr. Oliver BimberORCiDGND
DOI (Cite-Link):https://doi.org/10.25643/bauhaus-universitaet.853Cite-Link
URN (Cite-Link):https://nbn-resolving.org/urn:nbn:de:gbv:wim2-20111215-8531Cite-Link
Language:English
Date of Publication (online):2007/07/29
Year of first Publication:2007
Release Date:2007/07/29
Institutes:Fakultät Medien / Juniorprofessur Augmented Reality
Tag:Barcodes; Computer Vision
GND Keyword:Maschinelles Sehen
Dewey Decimal Classification:700 Künste und Unterhaltung / 770 Fotografie, Computerkunst / 770 Fotografie, Fotografien, Computerkunst
BKL-Classification:54 Informatik / 54.74 Maschinelles Sehen
Licence (German):License Logo In Copyright