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Qianwen Zhou, Changqing Zhu and Na Ren
With the increasing ease of building information modeling data usage, digital watermarking technology has become increasingly crucial for BIM data copyright protection. In response to the problem that existing robust watermarking methods mainly focus on ...
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Qifei Zhou, Changqing Zhu and Na Ren
How to keep the fidelity of the digital elevation model (DEM) data is a crucial problem in the current watermarking research, as the watermarked DEM data need to preserve their accuracy. We proposed a zero watermarking method for the triangulated irregul...
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Qifei Zhou, Na Ren, Changqing Zhu and A-Xing Zhu
Projection transformation is an important part of geographic analysis in geographic information systems, which are particularly common for vector geographic data. However, achieving resistance to projection transformation attacks on watermarking for vect...
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