Perspectives on Information Hiding for Multimedia Security

多媒体安全信息隐藏的观点

• 批准号: 0242417
• 负责人: Rajarathnam Chandramouli
• 金额: $ 28万
• 依托单位: Stevens Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-07-01 至 2007-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0242417&HistoricalAwards=false
• 关键词: Perspectives; Information; Hiding; Multimedia; Security

A fully digitized multimedia enriched world will be a reality when security and quality of the multimedia content can be guaranteed. Information hiding (watermarking, digital fingerprinting, etc.) has been gaining popularity in this quest for security. Investigation of information hiding based security techniques that suit multimedia data and networks is the goal of this project. Primarily, this project considers problems in providing multimedia security from the following different perspectives: (a) Encoder/Content originator perspective, (b) Decoder/Content recipient perspective, (c) Attacker's perspective, and (d) Networking perspective. Studying the multimedia data security problem from these perspectives could lead to a better understanding of security issues from an end-to-end system view point. Connections between perceptually based and information theory based information hiding, and content based watermarking will be investigated with robustness and embedding capacity being the main focus. Detector dependent embedding and game theoretic formulation to study the dynamics between the decoder and a malicious attacker are proposed. A new attack dependent definition of security and methods to compute the information hiding capacity based on this definition are also proposed in this project. Finally, joint source-channel coding and multiple description coding approaches for robust watermark systems that can handle network losses are also of interest.

当可以保证多媒体内容的安全性和质量时，完全数字化的多媒体丰富世界将成为现实。信息隐藏（水印，数字指纹等）在寻求安全方面一直在越来越受欢迎。该项目的目标是对适合多媒体数据和网络的基于信息隐藏的安全技术的调查。首先，该项目从以下不同的角度考虑提供多媒体安全性的问题：（a）编码器/内容发起者的观点，（b）解码器/内容收件人的观点，（c）攻击者的观点和（d）网络观点。从这些角度研究多媒体数据安全问题可能会从端到端系统的观点从端到端进行更好的了解。基于感知和信息理论的信息隐藏与基于内容的水印之间的连接将以稳健性和嵌入能力作为主要重点进行研究。提出了依赖于探测器的嵌入和游戏理论配方，以研究解码器与恶意攻击者之间的动态。该项目还提出了基于此定义的新的攻击定义和计算信息隐藏容量的方法的定义。最后，对于可以处理网络损失的强大水印系统的联合源通道编码和多个描述编码方法也引起了人们的关注。