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讲准字390号:师法自然的隐写术

发布时间:2019-11-20|浏览次数:

讲座报告主题:师法自然的隐写术
专家姓名:张真诚  
日期:2019-12-26 时间:09:30
地点:计算机极速10分彩注册208会议室  
主办单位:计算机科学与通信工程极速10分彩注册

主讲简介:張真誠講座教授,國際電子電機工程師學會會士(IEEE Fellow)與英國電機工程師學會會士(IET Fellow),先後就讀於清華大學和交通大學計算機工程研究所並榮獲國家工學博士。曾任交通大學副教授,中興大學教授,清華大學教授,中正大學講座教授、工學院院長、教務長、代理校長和教育快3部顧問室主任等職,曾任日本東京大學客座研究員、京都大學客座科學家。研究专长:張教授對資訊安全、密碼學與多媒體圖像處理等領域有卓越貢獻,發表學術論文千餘篇、專著38冊,取得美中台專利18項,主持研究計畫百餘項。

主讲内容:Steganography(隐写术) is the science of secret message delivery using cover media. A digital image is a flexible medium used to carry a secret message because the slight modification of a cover image is hard to distinguish by human eyes. In this talk, I will introduce some novel steganographic methods based on different magic matrices. Among them, one method that uses a turtle shell magic matrix to guide cover pixels’ modification in order to imply secret data is the newest and the most interesting one. Experimental results demonstrated that this method, in comparison with previous related works, outperforms in both visual quality of the stego image and embedding capacity. In addition, I will introduce some future research issues that derived from the steganographic method based on the magic matrix.


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