Watermarking Multiple Object Types in Three-Dimensional Models

aono@acm.org1. ABSTRACTThree-dimensional (3D) graphical model isabout to become a full-fledged multimediadata type, prompted by increasing popularityof Virtual Reality Modeling Language(VRML) [7] and imminent standardization ofMPEG4 [8].Following an introduction on data embedding,this paper presents a discussion on potentialtargets of data embedding that exist in bothVRML and MPEG4 formats. We then presentseveral algorithms that embed data in shape(i.e., geometry and topology of the shapes) andshape attributes associated with shape (e.g.,per-vertex texture coordinates).1.1 Keywords

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