Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A new watermarking Scheme for CAD engineering drawings
So far most watermarking Schemes focus mainly on common dot image, audio, video and text. Studies on the watermarking of vector graphics especially the 2D vector engineering drawings have only just begun. This paper proposed a novel watermarking technique for 2D engineering drawings, which is based on Modulus operation and Hopfield network. Watermark is embedded proportionately into the lengths of lines from an engineering drawing via Modulus calculation and can be extracted without exploiting the original engineering drawing. To improve the security of watermarking, we preprocess the watermark data using Arnold transform before embedding. By means of Hopfield network the extracted watermark can be further recovered and amended effectively. Experimental results show the proposed watermarking scheme is almost completely robust to rotate, scale, transplant (RST) as well as their combinations, and also strong enough to cropping attacks.
A new watermarking Scheme for CAD engineering drawings
So far most watermarking Schemes focus mainly on common dot image, audio, video and text. Studies on the watermarking of vector graphics especially the 2D vector engineering drawings have only just begun. This paper proposed a novel watermarking technique for 2D engineering drawings, which is based on Modulus operation and Hopfield network. Watermark is embedded proportionately into the lengths of lines from an engineering drawing via Modulus calculation and can be extracted without exploiting the original engineering drawing. To improve the security of watermarking, we preprocess the watermark data using Arnold transform before embedding. By means of Hopfield network the extracted watermark can be further recovered and amended effectively. Experimental results show the proposed watermarking scheme is almost completely robust to rotate, scale, transplant (RST) as well as their combinations, and also strong enough to cropping attacks.
A new watermarking Scheme for CAD engineering drawings
Hua Zhao, (Autor:in) / Wenjun Yuan, (Autor:in) / Zhijian Wang, (Autor:in)
01.11.2008
2690085 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Simplifying engineering drawings
| Engineering Index Backfile | 1938
Simplifying engineering drawings
| Engineering Index Backfile | 1938
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Needed -- Standard filing system for engineering drawings
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