Title :
Watermarking of two-dimensional engineering graph based on the orthogonal complete U-system
Author :
Zhanchuan, Cai ; Wei, Sun ; Changzhen, Xiong ; Dongxu, Qi
Author_Institution :
Sch. of Inf. Sci. & Technol., Zhongshan Univ., Guangzhou, China
Abstract :
Engineering graph plays an important role in design and manufacture, such as architecture, machinery, manufacture, military and so on. However, almost no persons consider the security and copyright of two-dimensional engineering graph. A novel method for two-dimensional engineering graph watermark based U system is proposed in this paper. Watermarks generated by this technique can be successfully extracted even after rotated, translated, and scaling transformed.
Keywords :
CAD; engineering graphics; watermarking; 2D engineering graph watermarking; orthogonal complete U-system; Computer aided instruction; Data engineering; Design engineering; Information science; Knowledge engineering; Manufacturing; Polynomials; Protection; Sun; Watermarking;
Conference_Titel :
Computer Aided Design and Computer Graphics, 2005. Ninth International Conference on
Print_ISBN :
0-7695-2473-7
DOI :
10.1109/CAD-CG.2005.87
