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Computer Optics, 2019, Volume 43, Issue 3, Pages 474–483 (Mi co667)  

IMAGE PROCESSING, PATTERN RECOGNITION

New method for GIS vector data protection based on the use of secondary watermark

Yu. D. Vybornovaa, V. V. Sergeevba

a Samara National Research University, 443086, Samara, Russia, Moskovskoye Shosse 34
b IPSI RAS – Branch of the FSRC “Crystallography and Photonics” RAS, 443001, Samara, Russia, Molodogvardeyskaya 151

Abstract: The paper provides a study on the watermarking method for vector map data based on a cyclic shift of a polygon vertex list. We propose a method modification allowing to automate authentication procedure, as well as to increase robustness against map contents modification. The main idea of the improved method is to use a noise-like image as a secondary carrier for a watermark, represented in the form of a bit sequence. An algorithm for construction of a noise-like image carrying a watermark sequence, as well as an algorithm for extraction of such a sequence, are given. An experimental study explores the information capacity of the carrier image and its robustness against quantization and interpolation noise adding, i.e. distortions simulating the embedding into map objects. The efficiency of the method is also demonstrated on real cartographic data. Conclusions comprise recommendations for rational choice of embedding parameters depending on the number of polygons on the vector map.

Keywords: geographic information systems, GIS, vector map, data protection, digital watermarking, raster image, discrete Fourier transform, bit sequence

Funding Agency Grant Number
Russian Foundation for Basic Research 19-07-00474 À
Ministry of Science and Higher Education of the Russian Federation 007-ÃÇ/×3363/26
This work was supported by the Russian Foundation for Basic Research (project No. 19-07-00474 A) and by the Russian Federation Ministry of Science and Higher Education within a state contract with the "Crystallography and Photonics" Research Center of the RAS under agreement 007-ÃÇ/×3363/26.


DOI: https://doi.org/10.18287/2412-6179-2019-43-3-474-483

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Full text: http://www.computeroptics.smr.ru/.../430316.html
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Received: 16.04.2019
Accepted:18.06.2019

Citation: Yu. D. Vybornova, V. V. Sergeev, “New method for GIS vector data protection based on the use of secondary watermark”, Computer Optics, 43:3 (2019), 474–483

Citation in format AMSBIB
\Bibitem{VybSer19}
\by Yu.~D.~Vybornova, V.~V.~Sergeev
\paper New method for GIS vector data protection based on the use of secondary watermark
\jour Computer Optics
\yr 2019
\vol 43
\issue 3
\pages 474--483
\mathnet{http://mi.mathnet.ru/co667}
\crossref{https://doi.org/10.18287/2412-6179-2019-43-3-474-483}


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