An Optimal Detector Structure for the Fourier Descriptors Domain Watermarking of 2D Vector Graphics

Authors:
V. R. Doncel;N. Nikolaidis;l. Pitas
Affiliations:
Aristotle Univ. of Thessaloniki, Thessaloniki;-;-
Venue:
IEEE Transactions on Visualization and Computer Graphics
Year:
2007

Citing 0
Cited 6

A new statistical detector for DWT-based additive image watermarking using the Gauss-Hermite expansion

IEEE Transactions on Image Processing
Reversible fragile watermarking for 2-D vector map authentication with localization

Computer-Aided Design
Watermarking geographical data on spatial topological relations

Multimedia Tools and Applications
Vector watermarking scheme for GIS vector map management

Multimedia Tools and Applications
Reversible fragile watermarking for locating tampered blocks in 2D vector maps

Multimedia Tools and Applications
A high capacity reversible data hiding method for 2D vector maps based on virtual coordinates

Computer-Aided Design

Quantified Score

Hi-index	0.00

Visualization

Abstract

Polygonal lines constitute a key graphical primitive in 2D vector graphics data. Thus, the ability to apply a digital watermark to such an entity would enable the watermarking of cartoons, drawings, and geographical information systems (GIS) data in vector graphics format. This paper builds on and extends an existing algorithm that achieves polygonal line watermarking by modifying the Fourier descriptors magnitude in an imperceptible way. Watermarks embedded by this technique can be detected in rotated, translated, scaled, or reflected polygonal lines. The detection of such watermarks had been previously carried out through a correlator detector. In this paper, analysis of the statistics of the Fourier descriptors is exploited to devise an optimal blind detector. Furthermore, the problem of watermarking multiple lines, as well as other implementation issues are being addressed. Experimental results verify the imperceptibility and robustness of the proposed method.