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Proceedings Paper

Blind watermarking for authentication of 3D QSplat models
Author(s): Sang-Uk Park; Young-Yoon Lee; Chang-Su Kim; Sang-Uk Lee
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Paper Abstract

In this paper, we propose a new scheme for blind watermarking of three-dimensional (3D) point clouds in the QSplat representation. The proposed watermarking algorithm can support the authentication, the proof of ownership, and the copyright protection of 3D data. We apply the quantization index modulation (QIM) to QSplat position data, such that the quantization indices of points are mapped to either even or odd set according to the watermark. The same watermark is repeatedly embedded into a cluster of the 3D model at a low resolution to guarantee the robustness of the watermark. At the decoder, the watermark is extracted in a blind manner without requiring the original model. Experimental results show that the proposed watermarking algorithm is robust against numerous attacks, including additive random noises, translation, cropping, simplification and their combinations.

Paper Details

Date Published: 2 October 2006
PDF: 9 pages
Proc. SPIE 6391, Multimedia Systems and Applications IX, 639111 (2 October 2006); doi: 10.1117/12.685811
Show Author Affiliations
Sang-Uk Park, Seoul National Univ. (South Korea)
Young-Yoon Lee, Seoul National Univ. (South Korea)
Chang-Su Kim, Korea Univ. (South Korea)
Sang-Uk Lee, Seoul National Univ. (South Korea)

Published in SPIE Proceedings Vol. 6391:
Multimedia Systems and Applications IX
Susanto Rahardja; JongWon Kim; Qi Tian; Chang Wen Chen, Editor(s)

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