计算机学院学术论坛报告

Academic Forum on Computer Science and Technology

特邀报告 第70期（总第191期）

主题报告：视觉密码学和秘密图像共享
报 告 人：杨庆隆 教授 台湾国立东华大学计算机与信息科学系
报告时间：2011年11月 25日（周五）9:30～11:00
报告地点：上海大学延长校区行键楼734
邀 请 人：钱权 副教授

报告摘要：Secure digital imaging is an important research area combining methods and techniques coming from cryptography and image processing. Visual cryptography and in general image sharing techniques enable distributing sensitive visual materials to involved participants through public communication channels, as the generated secure images do not reveal any information if they are not combined in the prescribed way. In visual cryptography, the decoding process is performed directly by the human eyes, while in general, the shared images need some processing to reconstruct the secret image. In this talk, I will describe the latest techniques, algorithms, and solutions for visual cryptography and image sharing. Some schemes about visual cryptography and secret image sharing introduced in this talk are shown below:
- Visual Cryptography for Color Images
- Visual Cryptography for Multiple Secrets
- Extended Visual Cryptography for Photograph Images
- Probabilistic Visual Cryptography Schemes
- Visual Cryptography and Random Grids
- Visual Cryptography Schemes with Reversing
- Applications of Visual Cryptography
- Polynomial-based Image Sharing
- Image Sharing with Steganography and Authentication
- Two-Decoding-Option Image Sharing Method.

Biography：CHING-NUNG YANG received the B.S. degree and the M.S. degree, both from Department of Telecommunication Engineering at National Chiao Tung University. He received Ph.D. degree in Electrical Engineering from National Cheng Kung University. He is presently a professor in the Department of Computer Science and Information Engineering at National Dong Hwa University, and is also an IEEE senior member. He has published a number of journal and conference papers in the areas of information security, multimedia security and coding theory. He is the guest editor of a special issue on "Visual Cryptography Scheme" for Communication of CCISA, and a coauthor of a series of articles on "Image Secret Sharing" for the Encyclopedia of Multimedia. He is the coeditor of the book "Visual Cryptography and Secret Image Sharing" published by CRC Press/Taylor & Francis (ISBN: 9781439837214). He serves as a technical reviewer for over 30 major scientific journals in the areas of his expertise, and has served as member of program committees of various international conferences committees. He is the recipient of the 200, 2006 and 2010 Fine Advising Award in the Thesis of Master of Science awarded by Institute of Information & Computer Machinery.

Homepage: http://cis.csie.ndhu.edu.tw/~cnyang/