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This paper proposes a robust, blind and imperceptible watermarking algorithm of 3D mesh models using redundancy information. The basic idea is to embed watermarks into a 3D mesh model by adjusting the order of vertexes in each triangle. Furthermore, we need to keep the normal vertex of each triangle unchanged. The algorithm is applied to many mesh models. Experimental results show no distortion will be caused and the imperceptibility of the watermark is very good. And its robustness against thedoi:10.4156/jdcta.vol6.issue2.21 fatcat:b6yybd4xercdnbzkipuwvgtyse