NDLI: Selective authentication algorithm based on semi-fragile watermarking for vector geographical data

Content Provider	IEEE Xplore Digital Library
Author	Na Ren Qi-sheng Wang Chang-qing Zhu
Copyright Year	2014
Description	Author affiliation: Key Lab. of Virtual Geographic Environ. of Minist. of Educ., Nanjing Normal Univ., Nanjing, China (Na Ren; Qi-sheng Wang; Chang-qing Zhu)
Abstract	Unlike the exact authentication, selective authentication only needs to provide the detection and location of significant revision. So, some subtle modification is allowed in some practical applications, such as data compression. Selective authentication can identify whether or not data is still useful after being modified. The purpose of this paper is to propose a selective authentication algorithm based on semi-fragile watermarks for vector geographical data. The proposed scheme simplifies the map by using the Douglas Peucker algorithm to obtain the feature points. First, the relationship between selective authentication and semi-fragile watermarking is analyzed. Then, the feature points are obtained by the Douglas Peucker algorithm. Furthermore, the feature points and non-feature points are embedded using different watermark embedding, detection and authentication rules. The experimental results indicate that the proposed algorithm has good invisibility, and is robust to compression, addition of noise, and deletion of points. Besides, the maximum watermarking error can be strictly controlled. The proposed algorithm can better meet the needs of the selective authentication for vector geographical data.
Starting Page	1
Ending Page	6
File Size	944096
Page Count	6
File Format	PDF
ISSN	2161024X
e-ISBN	9781479957149
DOI	10.1109/GEOINFORMATICS.2014.6950830
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-06-25
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Vector Geographical Data Semi-fragile Watermark Authentication Watermarking Selective Authentication Vectors Data Compression
Content Type	Text
Resource Type	Article
Subject	Geography, Planning and Development Computer Networks and Communications Information Systems Electrical and Electronic Engineering Computer Vision and Pattern Recognition Software

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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