24 June 2005 Optimal watermarking rate allocation in variable bit-rate compression
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Proceedings Volume 5960, Visual Communications and Image Processing 2005; 59604D (2005) https://doi.org/10.1117/12.632711
Event: Visual Communications and Image Processing 2005, 2005, Beijing, China
Abstract
As the usage of multimedia is increased, the requirement of management on digital rights is emerged. Several Digital Rights Management (DRM) systems are provided the solution of that requirement. The watermarking technology can be used to several DRM system, such as MPEG-21. Conventional watermarking techniques intend to make robust watermarking against attacks including compression. The watermark has information as well as the cover image. In order to code watermarked image, more bits are required compraing to unwatermarked image. The conventional watermarking researches does not consider this severely. We are interested in variable rate compression considering streamming services. In order to maximize the image quality and the watermark quailty in given bitrate, we should allocate the watermark rate properly. In this paper, we investigate the optimum watermark length considering variable quantization step size.
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Jong-Tae Kim, Hae-Yeoun Lee, Heung-Kyu Lee, Byeong-Ho Choi, "Optimal watermarking rate allocation in variable bit-rate compression", Proc. SPIE 5960, Visual Communications and Image Processing 2005, 59604D (24 June 2005); doi: 10.1117/12.632711; https://doi.org/10.1117/12.632711
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