Title :
Watermarking T-Spline surfaces
Author :
Bin, Weng ; Ri-jing, Pan ; Zhi-qiang, Yao ; Shan-chao, Yang ; Xiao-qing, Feng ; Zhi-geng, Pan
Author_Institution :
Key Lab. of Network Security & Cryptology, Fujian Normal Univ., Fuzhou
Abstract :
This paper proposes two data embedding algorithms for T-spline surfaces, one is suitable for steganography, and the other for robust shape-preserving watermarking. For steganography, we embed data into the points on T-spline surfaces by using constrained optimization method. For robust shape-preserving watermarking, we use the local knot insertion of T-spline surfaces. The experiment results and their analyses are also presented.
Keywords :
optimisation; splines (mathematics); steganography; watermarking; T-spline surfaces; constrained optimization; data embedding algorithms; steganography; watermarking; Bismuth; Equations; Laboratories; Robustness; Shape control; Spline; Steganography; Surface reconstruction; Surface topography; Watermarking; T-Spline; steganograph; surface; watermark;
Conference_Titel :
Communication Technology, 2008. ICCT 2008. 11th IEEE International Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4244-2250-0
Electronic_ISBN :
978-1-4244-2251-7
DOI :
10.1109/ICCT.2008.4716246
