Fragile and Semi-fragile Reversible Data Hiding
- When?
- Tuesday 7 August 2007, 14:00 to 15:00
- Where?
- 39BB02
- Open to:
- Staff, Students
Professor Yun Q Shi, New Jersey Institute of Technology
Abstract:
Data hiding has recently drawn extensive interests from research communities such as signal processing, multimedia engineering, and system security. It is noticed that most of current data hiding techniques belong to “lossy” data hiding in the sense that the cover media after data hiding have been permanently distorted. That is, one cannot recover the original cover media from the marked media. This is caused by error occurred in truncation, quantization, round-off and bit-plane replacement without memory. For some applications, e.g., the law enforcement and medical fields, the original cover media are as critical as the hidden data.
It is required that the original media should be recovered exactly after the hidden data have been extracted from the marked media. Analogous to data compression, this type of data hiding is referred to as “lossless” data hiding. This tutorial surveys many existing lossless data hiding techniques. In other words, this tutorial will address the fundamentals, various algorithms and applications of fragile and semi-fragile reversible data hiding. Note that lossless data hiding first found applications in authentication, then in law enforcement and medical data systems. It is believed that it actually opens a new door to link the original media with the associated data. Hence it will find more applications in future.
Notes:
Professor Yun Q Shi joined the Department of Electrical and Computer Engineering at the New Jersey Institute of Technology since 1987. He obtained his B.S. degree and M.S. degree from the Shanghai Jiao Tong University, Shanghai, China; his M.S. and Ph.D. degrees from the University of Pittsburgh, P.A.. He is a leading researcher in the field of multimedia security, contributing in the region of 200 authored and co-authored papers in top ranking conferences and journals, 18 patents and 1 book. He is also a Fellow of the IEEE. Professor Shi is currently visiting the Department of Computing, University of Surrey sponsored by the Royal Society's North America Short Visits Grant. From more biographical information please refer to: http://web.njit.edu/~shi/.
