Technical Section: Robust watermarking motion data with DL-STDM

Authors:
Xiaomao Wu;Lizhuang Ma;Zhuoqun Dong;Lionel Revéret
Affiliations:
Evasion/LJK, INRIA, France and Department of Computer Science & Engineering, Shanghai Jiao Tong University, Shanghai, China;Department of Computer Science & Engineering, Shanghai Jiao Tong University, Shanghai, China;Department of Computer Science & Engineering, Shanghai Jiao Tong University, Shanghai, China;Evasion/LJK, INRIA, France
Venue:
Computers and Graphics
Year:
2008

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Abstract

In this paper, we propose a robust watermarking scheme called Double-Layer Spread-Transform Dither Modulation (DL-STDM) for watermarking motion data. We embed watermarks into the DCT domain of the quaternion logarithm image (QLI) representation of motion data. Experimental results demonstrate that our scheme is more robust than existing motion watermarking schemes against a wide variety of attacks, including noise addition, smoothing, cropping, attenuation, simplification, time warping, non-uniform scaling along amplitude axis and 2nd watermarking. Our scheme is useful for copyright protection and ownership identification of motion data.