Self-synchronizing watermarking scheme for an arbitrarily shaped object |
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Authors: | Jie GuoAuthor Vitae David ZhangAuthor Vitae |
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Affiliation: | a Centre for Multimedia Signal Processing/Department of Computing, Hong Kong Polytechnic University, Kowloon, Hong Kong b Institute of Image Processing & Pattern Recognition, Shanghai Jiaotong University, Shanghai 200030, China |
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Abstract: | To protect the copyright of an arbitrarily shaped object, an oblivious and robust watermarking scheme is proposed. Different from other methods, an inertia ellipse is constructed to estimate the state of attack channel, and barycenter matching is employed to achieve fast self-synchronizing watermark detection. Watermark verification can be performed without the original image. Experimental results prove the robustness of our scheme against object manipulations, such as rotation, translation, scaling, etc. |
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Keywords: | Watermarking Inertia ellipse Oblivious detection Shape adaptive DCT |
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