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A Polyline Watermarking Scheme for GIS Vector Map  

Kim, Jun-Hee (부경대학교 정보공학과)
Lee, Suk-Hwan (동명대학교 정보보호학과)
Kwon, Seong-Geun (삼성전자 무선사업부)
Park, Seung-Seob (부경대학교 컴퓨터공학과)
Kwon, Ki-Ryong (부경대학교 IT융합응용공학과)
Publication Information
Journal of Korea Multimedia Society / v.13, no.4, 2010 , pp. 582-593 More about this Journal
Abstract
Recently the commercial value of GIS(geographic information system) has been increased with growing application demands of spatial information in life space. Also, GIS has been expanded to the integrated information system that provides the ease access to map information by public users and also the combined service of GIS map data and various multimedia contents. But several security problems of GIS map data have brought up at GIS industries, such as the illegal copy and distribution of GIS map data. Furthermore, the copyright protection of GIS map data has not been researched yet compared with image and video contents. This paper presents a polyline based watermarking scheme for the copyright protection of GIS vector map. The proposed scheme analyzes the structure of vector map and embeds adaptively the watermark by using the distance distribution of polyline components. From experimental results, we verified that the proposed scheme satisfies the invisibility and the robustness of geometrical attacks.
Keywords
GIS; Vector Map; Copyright Protection; Watermarking;
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