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3D Keyframe Animation Watermarking Based on Orientation Interpolator Suk-Hwan LEE Ki-Ryong KWON Publication IEICE TRANSACTIONS on Information and Systems Vol.E90-D No.11 pp.1751-1761 Publication Date: 2007/11/01 Online ISSN: 1745-1361 DOI: 10.1093/ietisy/e90-d.11.1751 Print ISSN: 0916-8532 Type of Manuscript: PAPER Category: Application Information Security Keyword: 3D keyframe animation, interpolator, digital watermarking, Full Text: PDF(688KB)>>
Summary: This paper presents 3D keyframe animation watermarking using orientation interpolators. 3D keyframe animation consists of a number of transform nodes, including a geometrical node from the initial model and several interpolator nodes that represent object movement. Therefore, the proposed algorithm randomly selects transform nodes with orientation interpolator nodes, then resamples the quaternion components to maintain a uniform key time. Thereafter, watermark bits are embedded into quaternion components with large rotation angles. Experimental results verify the robustness of the proposed algorithm to geometrical and timeline attacks, along with the subjective and objective quality of its invisibility. | ||||||||||
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