A Fragile Watermarking Scheme for Three-Dimensional Polygonal Models Using Triangle Strips(Multimedia Systems for Communications)
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概要
- 論文の詳細を見る
In this paper, we propose a new fragile watermarking scheme that can be used to verify three-dimensional (3-D) polygonal models by detecting unauthorized alterations. In order to generate a binary watermark sequence, we combine a binary random sequence generated by the user key with a binary logo sequence using the bit-wise exclusive OR operation. The binary watermark sequence is embedded into 3-D triangle strips by perturbing their vertex coordinates. The proposed watermarking scheme can identify specific locations that have been changed. Changes of the vertex coordinates in the watermarked 3-D model are reflected in the extracted watermark image, which indicates the attacked area. Experimental results demonstrate that we can detect various modifications of the watermarked 3-D model: translation, rotation, scaling, randomization of points, polygon simplification, geometry compression, and local deformation.
- 社団法人電子情報通信学会の論文
- 2004-09-01
著者
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Ho Yo-sung
Visual Communication Laboratory Department Of Information And Communications Kwang-ju Institute Of S
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Lee Sang-kwang
Visual Communications Laboratory Department Of Information And Communications Gwangju Institute Of S
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Lee Sang-kwang
Visual Communications Laboratory Department Of Information And Communications Gwangju Institute Of S
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Ho Yo-sung
Visual Communications Laboratory Department Of Information And Communications Gwangju Institute Of S
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- A Fragile Watermarking Scheme for Three-Dimensional Polygonal Models Using Triangle Strips(Multimedia Systems for Communications)
- A Fragile Watermarking Scheme for Three-Dimensional Polygonal Models Using Triangle Strips