Line-division-based digital watermarking system for facilitating fair use of small-size vector map content
✍ Scribed by Takaaki Yamada; Yasuhiro Fujii; Satoru Tezuka; Norihisa Komoda
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 2008
- Tongue
- English
- Weight
- 484 KB
- Volume
- 91
- Category
- Article
- ISSN
- 1942-9533
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✦ Synopsis
Abstract
As many people use digital maps in the ubiquitous network, facilitating fair use has become a great issue for vector map content. Watermarks are a promising way to trace content and report contact information to end users. We clarify the technical requirement for a small‐size map including several hundred vectors. A line‐division‐based digital watermarking system based on inserting new points that divide a line segment, where the internal division ratio indicates the embedding information, is proposed. The ability of the method to survive daily user operations and trace content is evaluated. © 2009 Wiley Periodicals, Inc. Electron Comm Jpn, 91(9): 11– 19, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecj.10010