Research on a Digital Watermarking Algorithm Suitable to Vector Map

Author

Deng Shujun ; Lu Liang ; Deng Shujun ; Che Sen

Author_Institution

Peking Univ., Beijing

fYear

2007

fDate

18-21 Aug. 2007

Firstpage

1236

Lastpage

1240

Abstract

Vector map is an important and valuable information resource, which is a kind of basic data for many information systems related to spatial location, such as GIS, ITS, etc. To protect copyright of vector map, this article presents a digital watermarking algorithm based on double-grid, which hides watermark information into the least significant bit of node coordinates separately. Experiments prove that this algorithm with strong concealment and robustness could prevent from generic node editing and map cutting.

Keywords

geographic information systems; information resources; watermarking; digital watermarking; generic node editing; geographic information system; information resource; intelligent transportation system; least significant bit; map cutting; spatial location; vector map; Algorithm design and analysis; Cryptography; Data engineering; Geographic Information Systems; Information resources; Information security; Information systems; Protection; Robustness; Watermarking; digital watermarking; double-grid; robustness; the least significant bit; vector map;

fLanguage

English

Publisher

ieee

Conference_Titel

Automation and Logistics, 2007 IEEE International Conference on

Conference_Location

Jinan

Print_ISBN

978-1-4244-1531-1

Type

conf

DOI

10.1109/ICAL.2007.4338758

Filename

4338758