Progressive Watermarking on the 3D Meshes

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题名:	Progressive Watermarking on the 3D Meshes
作者:	陳宏光
贡献者:	電子工程(學)系
日期:	2010-03
上传时间:	2013-07-03 14:26:41 (UTC+8)
摘要:	Traditional 3D watermarking mostly applies offline decode, which usually requires a complete 3D mesh. For a set of level-of-detail(LOD) meshes, the watermark has to be robust enough to survive from LOD generation algorithms that applies mesh simplification; otherwise, they may have to embed the watermark into each LOD mesh individually. To cope with such problems, we proposed a novel 3D mesh watermarking approach on the basis of the progressive mesh and the discrete wavelet transform. The new approach begins with mutiresolution processing of the cover object and the watermark respectively by a progressive mesh encoder and a Haar-based discrete wavelet transform encoder. By embedding the transformed sequence of the watermark image into the vertex split sequence of the progressive mesh, the watermark and the cover object are transmitted synchronously such that the progressive decode of the cover object and the extraction and decoding of the watermark can be performed on-the-fly with the transmission. Once if the transmission is interrupted, it is still possible to verify the watermark for it is progressively displayed along with the cover object.
關聯:	IEEE Internation Symposium on Broadband Multimedia Systems and Broadcasting
显示于类别:	[電子工程系(所)] 【電子工程系所】期刊論文

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