A Shape-Preserving Method for Watermarking 2D Vector Maps Based on Statistic Detection

Cheng Yong SHAO  Hai Long WANG  Xia Mu NIU  Xiao Tong WANG  

IEICE TRANSACTIONS on Information and Systems   Vol.E89-D   No.3   pp.1290-1293
Publication Date: 2006/03/01
Online ISSN: 1745-1361
DOI: 10.1093/ietisy/e89-d.3.1290
Print ISSN: 0916-8532
Type of Manuscript: LETTER
Category: Application Information Security
feature point,  map simplification,  shape-preserving,  invisibility,  

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A statistic based algorithm for watermarking 2D vector maps is proposed. Instead of 2D coordinates, a one-dimensional distance sequence extracted from the original map is used as the cover data to achieve the shape-preserving ability. The statistical feature of the cover data is utilized for data embedding. Experiment results indicate the scheme's better performance in invisibility, as well as its robustness to certain attacks.