Proceedings of the 10th International Conference on Computer Vision Theory and Applications 2015
DOI: 10.5220/0005358102010208
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Watermark Embedding and Extraction Scheme Design by Two-stage Optimization for Illegal Replication Detection of Two-dimensional Barcodes

Abstract: Recently, two-dimensional (2D) barcodes displayed on mobile phones are becoming used for authentification such as airplane boarding pass and online payment. Digital watermarking is promising technology to detect illegal replication or fabrication of such 2D codes. However, due to geometric distortions and/or interferences between patterns of camera sensors and screen pixels, watermark may not be sufficiently extracted from subbands which are used when embedding the watermark. This paper proposes a two-stage op… Show more

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