10月24日，应伟德betvlctor1946邀请，台湾东华大学杨庆隆教授于长清湖校区文宗楼506会议室做了题为“基于纠错码的信息隐藏与秘密图像共享”的学术报告。报告会由伟德betvlctor1946万文博老师主持，学院部分教师、硕博士研究生聆听了此次报告，并参与讨论。
报告伊始，杨庆隆教授介绍了隐写与图像共享两种技术，这些技术可泛应用于数字多媒体，特别是数字图像，详细地说明了基于纠错码的信息隐藏技术在提高信息嵌入率同时减少修改的位元的数目方面的作用。杨教授简要地描述使用Hamming-like, Hamming+1,Hamming+k, Gaolay+1, Golay+2和不等效错误保护码(UEP)等的信息隐藏技术。当考虑应用于像素域时，基于纠错码的信息隐藏技术与众所周知的LSB和OPAB隐藏技术有极大的关联性。另一方面,本报告简要地介绍了非像素域上的纠错码信息隐藏，例如在频域和AMBTC压编域。
报告会中，杨庆隆教授重点讲解了基于纠错码的秘密图像共享。所谓的(k,n)秘密图像共享是将秘密图像分享成n个子图像，并且可以从任何k个子图像恢复秘密图像。但是，不能从（k-1）或更少的子图像获得任何秘密信息。杨教授详细地描述了基于里德-所罗门码(RS code)最大距离可分离码的秘密图像共享，并讨论基于RS码的秘密图像共享和基于多项式秘密图像共享的关系。另外，杨教授简要地分享了基于汉明码和定量码的秘密图像共享。杨庆隆教授的精彩报告，妙语连珠，赢得了老师和同学们的阵阵掌声。
Professor Ching-Nung Yang obtained his Ph. D. degree in Electrical Engineering from National Cheng Kung University. His B.S. and M.S. degrees, both were awarded in Department of Telecommunication Engineering from National Chiao-Tung University. Dr. Yang served in National Dong Hwa University Since 1999. His current title is Professor in Department of Computer Science and Information Engineering. He had been Visiting Professor to University of Missouri Kansas City, University of Milan, and University of Tokyo. He is currently a Fellow of IET (IEE) and an IEEE senior member Professor Yang has done extensive researches on visual cryptography and secret image sharing, and is the chief scientist in both areas. In fact, a very important innovation of visual cryptography, the books and has published over 250 (including more than 120 SCI -Indexed papers) profession research papers in the areas of information security and coding theory. In the meantime，he has served in international academic organizations. He serves as technical reviewers for over 40 major scientific journals in the areas of his expertise, and serves as edition boards and editors of special issues for some journals. Also, he was invited as chairs, keynote speakers, and members of program committees for various international conferences. He is the recipient of the 2000. 2006. 2010. 2012 and 2014 Fine Advising Award in the Thesis of Master/PhD Of Science awarded by Institute of Information & Computer Machinery.
