Welcome to my home in cyberspace 


I joined the faculty of the Electrical & Computer Engineering Department (ECE) and the Institute of Advanced Computer Studies (UMIACS)  at the University of Maryland, College Park in Fall 2001, where I am currently an Associate Professor.  I am also affiliated with the Institute of Systems Research (ISR) at UMD.  I lead the Media And Security Team (MAST), with main research interests on information security and forensics, and multimedia signal processing.




Recent Activities

A special issue on "Digital Forensics" that I edited with colleagues in the IEEE Information Forensics and Security Technical Committee will appear in the IEEE Signal Processing Magazine in March 2009. The IEEE Security and Privacy Magazine will feature a concurrent issue to cover complementary aspects on digital forensics.

The paths of engineering and economics/management -- the two college majors I pursued -- crossed again 10 years since graduation, when I served as Finance Chair for IEEE's flagship conference on signal processing -- International Conference on Acoustic, Speech, and Signal Processing (ICASSP'07).



Digital Fingerprinting Fingerprinting is a class of approaches to combat unauthorized re-distribution of valuable data by putting a unique ID in the data to identify each recipient.  Several users may come together to erase the fingerprints.  We investigated anti-collusion fingerprinting that can trace illegal distributors and colluders, and exploit the interplay between encoding and embedding of fingerprints. This activity is sponsored in part by Air Force Research Laboratories and Office of Naval Research's Young Investigator Program.

See a tutorial on "Digital Fingerprinting for Multimedia Forensics" given at ICASSP'05 - Philadelphia conference in March 2005.



My book,  "Multimedia Data Hiding", (co-authored with Prof. Bede Liu, Springer-Verlag, 2002), addresses both fundamental and practical issues, and tackles both design and attack problems. [Available at Amazon.com and Barnes&Nobles]

I also coauthored a book on "Multimedia Fingerprinting Forensics for Traitor Tracing " in Fall 2005 (EURASIP Book Series, by Hindawi Publishing).



My research on "Signal Processing Approaches for Multimedia Security and Information Protection" is sponsored by NSF through a 5-year CAREER award program ('02-'07).  [E@M Magazine news]

A new 3-year NSF effort focuses on addressing physical-layer challenges through cross-layer approaches to wireless secure communications, dubbed as the CLAWS effort. [UMD news]



TR100 I was selected by MIT Technology Review Magazine in 2004 as one of the 100 top young innovators under age of 35 whose contribution to emerging technologies will profoundly influence our world, shaping how we live and work in the future.  [UMD newsphoto article from the Chinese translation/edition of TR magazine]



Teaching
ENEE324  Engineering Probability (Spring'06; undergraduate core)
ENEE408G Capstone Design Course on Multimedia Signal Processing (Fall'02, Spring'03, Spring'05, Fall'06)
ENEE624/630 Advanced Signal Processing (Fall'03, '04;  graduate core)
ENEE631 Digital Image and Video Processing (Fall'01, Spring'04, '07, '09; graduate level)
ENEE739 Advanced Topics on Signal Processing: Multimedia Security and Forensics (Spring'02, Fall '05)


 

Thanks for visiting!