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3D Mesh Watermarking Using CEGI  

이석환 (경북대학교 대학원 전자공학과)
김태수 (경북대학교 대학원 전자공학)
김승진 (경북대학교 대학원 전자공학)
권기룡 (부산외국어대학)
이건일 (경북대학교 대학원 전자공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.29, no.4C, 2004 , pp. 472-484 More about this Journal
Abstract
We proposed 3D mesh watermarking algorithm using CEGI distribution. In the proposed algorithm, we divide a 3D mesh of VRML data into 6 patches using distance measure and embed the same watermark bits into the normal vector direction of meshes that mapped into the cells of each patch that have the large magnitude of complex weight of CEGI. The watermark can be extracted based on the known center point of each patch and order information of cell. In an attacked model by affine transformation, we accomplish the realignment process before the extraction of the watermark. Experiment results exhibited the proposed algorithm is robust by extracting watermark bit for geometrical and topological deformed models.
Keywords
Mesh watermarking; CEGI;
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