A new topology-based watermarking method for layered 3D triangular mesh models

• Autorzy: Rahman M. , Kaneda K. , Harada K.
• Języki publikacji: EN

Abstrakty

EN

A new topology-based watermarking method is proposed to embed information in objects with layered 3D triangular meshes such as those reconstructed from CT or MRI data. The main idea of the method is to compare the heights of the vertices of a triangle lying in the same layer. A watermark message is converted into a binary bit sequence, and then embedded into the modelin such a way that the first vertex of a triangle in the upper level carries information 1, and the first vertex of a triangle in the lower level carries information 0. For experimental purposes, a watermark message is embedded in a mouse embryo model. It is robust against translation, rotation, re-sectioning, local deformation and scaling. It left some artifacts after re-arrangement of local or global numbering. It is useful for shape sensitive 3D geometric models.

Słowa kluczowe

EN

watermarking; layered 3D triangular mesh model; topology based embedding; computer graphics

• Wydawca: Institute of Information Technology of the Warsaw University of Life Sciences – SGGW
• Czasopismo: Machine Graphics and Vision
• Rocznik: 2005
• Tom: Vol. 14, No. 4
• Strony: 427--439
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

Rahman M.

• Graduate School of Engineering, Hiroshima University, Japan

autor

Kaneda K.

• Graduate School of Engineering, Hiroshima University, Japan

autor

Harada K.

• Graduate School of Engineering, Hiroshima University, Japan

Bibliografia

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