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臺灣東華大學楊慶隆教授應邀來我院作報告
2019-10-28 16:23   審核人:

   10月24日,應山東師范大學信息科學與工程學院邀請,臺灣東華大學楊慶隆教授于長清湖校區文宗樓506會議室做了題為“基于糾錯碼的信息隱藏與秘密圖像共享”的學術報告。報告會由信息科學與工程學院萬文博老師主持,學院部分教師、碩博士研究生聆聽了此次報告,并參與討論。

報告伊始,楊慶隆教授介紹了隱寫與圖像共享兩種技術,這些技術可泛應用于數字多媒體,特別是數字圖像,詳細地說明了基于糾錯碼的信息隱藏技術在提高信息嵌入率同時減少修改的位元的數目方面的作用。楊教授簡要地描述使用Hamming-like, Hamming+1,Hamming+k, Gaolay+1, Golay+2和不等效錯誤保護碼(UEP)等的信息隱藏技術。當考慮應用于像素域時,基于糾錯碼的信息隱藏技術與眾所周知的LSB和OPAB隱藏技術有極大的關聯性。另一方面,本報告簡要地介紹了非像素域上的糾錯碼信息隱藏,例如在頻域和AMBTC壓編域。

報告會中,楊慶隆教授重點講解了基于糾錯碼的秘密圖像共享。所謂的(k,n)秘密圖像共享是將秘密圖像分享成n個子圖像,并且可以從任何k個子圖像恢復秘密圖像。但是,不能從(k-1)或更少的子圖像獲得任何秘密信息。楊教授詳細地描述了基于里德-所羅門碼(RS code)最大距離可分離碼的秘密圖像共享,并討論基于RS碼的秘密圖像共享和基于多項式秘密圖像共享的關系。另外,楊教授簡要地分享了基于漢明碼和定量碼的秘密圖像共享。楊慶隆教授的精彩報告,妙語連珠,贏得了老師和同學們的陣陣掌聲。

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.

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