学术报告：Multimedia Encryption Technologies for Privacy Protection

Title:  Multimedia Encryption Technologies for Privacy Protection

报告人：周怡聰  助理教授 澳门大学

报告时间：2012年4月5日       9:30——11:00

报告地点：逸夫科技大楼12楼报告厅

 Abstract:

Network and communication technologies provide a large number of opportunities for people to create, transmit, and store images and videos with vast quantities of private information. Increasing demand of privacy protection becomes an important issue for individual, business and government. Multimedia encryption is an effective method to protect multimedia data by transforming it into an unrecognizable format such that the protected objects are difficult to decode by an unauthorized user. 

Traditional encryption methods may either require significant computational costs or provide a lower level of security due to a lack of security keys or small key space. To overcome these problems, this talk presents several new technologies for multimedia encryption. It begins with a brief introduction to multimedia encryption, and follows four different technologies, including (n, k, p)-Gray codes and, discrete parametric cosine transform, edge maps and steganography, for multimedia encryption.

Short biography:

Yicong Zhou is an Assistant Professor in the Department of Computer and Information Science at University of Macau, and currently an adjunct Professor at Hunan University. He received his B.S. degree at Hunan University in 1992, M.S. and Ph.D. degrees at Tufts University in USA in 2008 and 2010, respectively. Yicong Zhou’s research interest includes multimedia encryption, image enhancement, medical imaging and object recognition. From 2008, he published 1 invited book, 3 journal articles and 20 conference papers.