报告时间：10月29日（周二）9：30-10：30
报告地点：曹光彪信息楼501报告厅
报告人：台湾逢甲大学 张真诚教授
报告内容：
Steganography 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.
报告人简介
张教授对于资讯安全、密码学与多媒体影像处理三大领域进行长期而深入之研究，于国际学术期刊、国际学术会议与学术专书共计发表研究论文一千余篇，其中SCI检索文章八百余篇，发表学术专书38册，研究成果丰硕。根据Google Scholar的统计，共获引用二万八千六百余次，h影响因子为80。多项创新发明、理论、技术应用已被收录于国外的教科书。此外，张教授亦曾主持台湾国科会、科技部、教育部、交通部、经济部等政府单位委託计划110余项，并有17项专刊(含1项美国专利和2项中国专利)。2017年8月Guide2Research发布的全球计算机科学领域的学术影响力排名，在一千名世界级顶级科学家，张教授位列全台第1名。
