摘要
在分析已知信息隐藏系统通信模型的基础上,提出了一种理论新模型,运用最优化理论的观点得出了隐藏系统的容量,对容量的存在性进行了证明,并对该模型进行了讨论。新模型重点考虑了信息隐藏系统实际存在的鲁棒性和透明性,全面综合了信息隐藏的嵌入、提取和攻击模型,对以往信息隐藏理论模型不能描述能够引起栽体尺寸变化的几何攻击的缺点做出了彻底改进。
This paper analyzes the existed communication model of information hiding system and provides a new model of its own. The new model drives hiding capacity based on optimal theory and proves the existence of hiding capacity. At the end, the authors discuss the characteristic of the model. This model thinks about more the real exist robust and transparency of information hiding system, and entirely eolligates embedding, testing and attacking model in one. It improves on existed theoretic model of information hiding that doesn＇t consists of geometry attacking which changes the size of covers.
出处
《计算机科学》
CSCD
北大核心
2005年第12期65-67,共3页
Computer Science
基金
国家自然科学基金(60473016)
北京市自然基金(4042022)
教育部优秀青年教师资助计划项目
关键词
信息隐藏
理论模型
隐藏容量
Information hiding,Theoretic model, Hiding capacity
