DMCA
Spread spectrum robust watermarking for NURBS surfaces
BibTeX
@MISC{Mitrea_spreadspectrum,
author = {Mihai Mitrea and Titus Zaharia and Francoise Preteux},
title = {Spread spectrum robust watermarking for NURBS surfaces},
year = {}
}
Share
 |
 |
 |
 |
||
OpenURL
Abstract
This paper presents a robust watermarking method for 3D data represented as NURBS. The mark is generated starting from a public message on 64 bits and from a secret information on 22 bits. The mark is embedded into the Discrete Cosine Transform (DCT) coefficients corresponding to the control points, by means of a spread spectrum technique. The detection procedure does not require the original (unmarked) data. The proposed method features transparency and robustness with respect to knot insertion/removal, degree elevation/reduction, geometric attacks, compression, linear and non-linear filtering, noise addition and multiplication. The probability of false alarm is lower than 16-14.
Keyphrases
nurbs surface spread spectrum robust public message geometric attack false alarm insertion removal robust watermarking method detection procedure control point non-linear filtering secret information discrete cosine transform spread spectrum technique degree elevation reduction noise addition
