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http://dx.doi.org/10.5909/JBE.2008.13.4.489

UCC-Resilient HD Content Watermarking Scheme on DCT Compressed Domain  

Kim, Jung-Youn (School of Mobile Communication & Digital Broadcasting Engineering, UST, Broadcasting & Telecommunications Media Research Department, ETRI)
Nam, Je-Ho (School of Mobile Communication & Digital Broadcasting Engineering, UST, Broadcasting & Telecommunications Media Research Department, ETRI)
Publication Information
Journal of Broadcast Engineering / v.13, no.4, 2008 , pp. 489-500 More about this Journal
Abstract
We propose a novel high-definition content watermarking algorithm that is highly feasible in UCC (User Created Contents) environment. We begin by addressing an association between broadcasting content and UCC in a view of copyrights, then present watermark requirements by analyzing various UCC editing-effect. Also, we provide a brief review of previous watermarking techniques that are supposed to satisfy the requirements. Our proposed scheme inserts a invisible watermark into both DC and AC components on $8{\times}8$ block DCT domain and extracts them after synchronization using DC image. Experimental results show that our technique satisfies the requirements of invisibility and robustness to a variety of attacks such as rotation, scaling, cropping, and JPEG compression, etc. Note that the proposed scheme is highly resilient to UCC edit attacks that are combined by many different types of watermark attacks.
Keywords
Watermark; UCC; DCT; DWT; DC; AC;
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