%0 Journal Article
%T A Geometrically Invariant Robust Image Watermarking Based on Deformable Multi-scale Transform<br>基于可变形多尺度变换的几何不变鲁棒图像水印算法
%A WANG Chun-Tao
%A NI Jiang-Qun
%A ZHUO Hua-Shuo
%A HUANG Ji-Wu
%A <br>王春桃
%A 倪江群
%A 卓华硕
%A 黄继武
%J 自动化学报
%D 2011
%I 
%X The robustness against geometrical transforms is still one of major concerns in robust watermarking although significant improvements have been achieved in past decades. This paper tackles the global geometrical attacks by designing a deformable multi-scale transform (DMST) with joint shiftability in position, orientation and scale. Via DMST, we derive theoretically the principles for geometrical synchronization and then utilize it to develop a template-based scheme to efficiently estimate geometrical parameters. The hidden Markov model in the standard wavelet domain is extended to the steerable wavelet domain, which is further used to improve the watermark extraction performance. Experimental simulation demonstrates that the proposed watermarking scheme is quite robust to common signal processing, global geometrical attacks, and their joint attacks.
%K Digital watermarking
%K robustness
%K deformable multi-scale transform (DMST)
%K geometric attack
%K hidden Markov model<br>数字水印
%K 鲁棒性
%K 可变形多尺度变换
%K 几何攻击
%K 隐马尔科夫模型
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=E76622685B64B2AA896A7F777B64EB3A&aid=B3C7018AFD6E563972CE58BB8B8FC8F8&yid=9377ED8094509821&vid=42425781F0B1C26E&iid=708DD6B15D2464E8&sid=5A64531D29896B77&eid=41685CA5511D97F7&journal_id=0254-4156&journal_name=自动化学报&referenced_num=0&reference_num=30