3D Data Processing Visualization and Transmission, International Symposium on (2004)
Sept. 6, 2004 to Sept. 9, 2004
Petros Daras , Aristotle University of Thessaloniki, Greece
Dimitrios Zarpalas , Informatics and Telematics Institute, Greece
Dimitrios Tzovaras , Informatics and Telematics Institute, Greece
Michael G. Strintzis , Aristotle University of Thessaloniki, Greece; Informatics and Telematics Institute, Greece
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.
D. Tzovaras, M. G. Strintzis, P. Daras and D. Zarpalas, "3D Model Watermarking for Indexing using the Generalized Radon Transform," 3D Data Processing Visualization and Transmission, International Symposium on(3DPVT), Thessaloniki, Greece, 2004, pp. 102-109.