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3D model watermarking for indexing using the generalized Radon transform

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4 Author(s)
Daras, P. ; Dept. of Electr. & Comput. Eng., Aristotelian Univ. of Thessaloniki, Greece ; Zarpalas, D. ; Tzovaras, D. ; Strintzis, M.G.

The present paper proposes a novel method for 3D-model watermarking for indexing. The proposed approach is based on the use of a generalized Radon transformation. More specifically, the cylindrical integration transform (CIT) is initially applied to the 3D models in order to produce descriptor vectors. At the same time a watermarking technique, based on CIT is used in order to embed a specific model identifier in the nodes of the 3D model. This identifier links the model to its descriptor vector, which is extracted only once and stored in a database. Every time this model is employed as a query model, watermark detection is used so as to retrieve the corresponding identifier and further the descriptor vector, which can be further used in a matching algorithm. The proposed techniques are evaluated experimentally in terms of both watermarking efficiency and content-based retrieval performance.

Published in:

3D Data Processing, Visualization and Transmission, 2004. 3DPVT 2004. Proceedings. 2nd International Symposium on

Date of Conference:

6-9 Sept. 2004