Steganography for Three-Dimensional Polygonal Meshes
Nicolas Aspert, E. Drelie, Yannick Maret, Touradj Ebrahimi · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2002
This paper proposes a method to embed information into a 3D model represented by a polygonal mesh. The approach used consists in slightly changing the position of the vertices, influencing the length of approximation of the normals to the surface. This technique exhibits relatively low complexity, and offers robustness to simple geometric tranformations. In addition, it does not introduce any visible distortion to the original model.