摘要
为了增加帧间相关性,有效检测时域同步攻击,改进了差分能量水印(DEW)算法,并引入有限状态机(FSM)模型.经实验验证,该水印对噪声等常见帧内干扰具有强鲁棒性,同时对恶意帧间攻击的脆弱性使其具备有效的同步攻击检测能力,并在不可见性、算法安全性方面有良好表现.
In order to produce inter-frame correlation and efficiently detect time-domain synchronous attack,a differential energy watermarking(DEW) algorithm was improved and a finite state machine(FSM) model was introduced.The experiments show that the watermark keeps robust to common intra-frame disturbance such as noise while its fragility to malicious inter-frame attack provides it effective detectability(against) synchronous attack.In addition,it performs well in invisibility and algorithm security.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2010年第7期907-910,共4页
Journal of Shanghai Jiaotong University
基金
国家自然科学基金资助项目(60702042
60802057)
国家高技术研究发展计划(863)项目(2009AA01Z407)
关键词
有限状态机
差分能量水印
时域冗余度
同步攻击
finite state machine(FSM)
differential energy watermarking(DEW)
time-domain redundancy
synchronous attack