When was a video captured? Where? Was the sound track captured together with the visual? Or added on later? Check out our latest work addressing these issues using environmental fingerprint from power grid:
NEW M. Stamm, M. Wu, and K.J.R. Liu, "Information Forensics: An Overview of the First Decade," invited paper for the inaugural issue, IEEE Access, vol. 1, 2013.
R. Garg, A.L. Varna and M. Wu, " 'Seeing' ENF: Natural Time Stamp for Digital Video via Optical Sensing and Signal Processing," ACM Multimedia 2011, Best Student Paper Award. [17% acceptance]. An updated and expanded version will appear in IEEE Trans. on Info. Forensics & Security (DOI: 10.1109/TIFS.2013.2272217) NEW.
W-H. Chuang, R. Garg, and M. Wu, "How Secure are Power Network Signature Based Time Stamps?” ACM CCS, Oct. 2012. [19% acceptance]
R. Garg, A. Hajj-Ahmad and M. Wu, “Geo-Location Estimation from Electrical Network Frequency Signals,” IEEE ICASSP, May 2013 [PDF] NEW.
I am Chair of the IEEE Technical Committee on Information Forensics and Security (IFS-TC, 2012-2013) and an IEEE Fellow. Earlier I served as Area Editor of the SPM for creating and editing the monthly "Inside Signal Processing eNewsletter (2007-2010)."
A special issue on "Digital Forensics" that I edited with colleagues in the IFS-TC appeared in the IEEE Signal Processing Magazine (SPM) in March 2009. An article on "Component Forensics" framework I co-authored was also translated to Chinese as an outreach effort of SPM. [IEEE Xplore, PDF; 中文版]
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 -- ICASSP'07. Later I served as Vice President - Finance of the IEEE Signal Processing Society (2010-2012).
I have been the Principal Investigator or Co-PI for several basic and advanced research projects funded by the Department of Defense on information security and forensics. Learn more from my research page.
A recent 3-year NSF effort of "Fashion," or Forensic Hash for Assured Cyber-based Sensing and Communications, aims at exploring the synergy between multimedia hashing and non-intrusive forensics [UMD news]. Earlier, I had a 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], and my research on "Signal Processing Approaches for Multimedia Security and Information Protection" was sponsored by NSF through a 5-year CAREER award program ('02-'07). [E@M Magazine news]
Embedded Digital Fingerprints Embedded 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).
Awards and Honors IEEE Fellow, Class 2011, for contributions to multimedia security and forensics.
2013: University of Maryland Distinguished Scholar-Teacher, a university honor for excellence in research and teaching.
2012: Innovator of the Year Award (The Daily Record); and Invention of the Year Award (Univ. Maryland).
2007: Computer World "40 under 40" Young IT Innovator Award.
2005: U.S. DoD ONR Young Investigator Award (YIP), 2005.
2004: MIT Technology Review Magazine TR100 award, as one of the 100 top young innovators under age of 35 whose contribution to emerging technologies will profoundly influence our world. [UMD news; photo article from the Chinese edition of TR magazine]
2002: U.S. NSF Faculty Early Career Development Award (CAREER).
2004-2005: IEEE Signal Processing Society Best Paper Award and EURASIP Best Paper Award. For two journal publications in multimedia and forensics.
Best Student Paper Awards, ICASSP 2005 and ACM Multimedia 2011, with student coauthors.
2009: IEEE Mac Van Valkenburg Early Career Teaching Award.
2009-2010: Robert Kent Junior Faculty Teaching Award, College of Engineering, Univ. Maryland, College Park.
2003: George Corcoran Faculty Education Award in electrical engineering.
ENEE324 Engineering Probability (Spring'06; undergraduate core)
ENEE408G Capstone Design Course on Multimedia Signal Processing (Fall'02, Spring'03, Spring'05, Fall'06, Spring'11-'12)
ENEE624/630 Advanced Signal Processing (Fall '03-'04, '09-'12; graduate core)
ENEE631 Digital Image and Video Processing (Fall'01, Spring'04, '07, '09, '10, '13; graduate level)
ENEE739 Advanced Topics on Signal Processing: Multimedia Security, Forensics, and Communications (Spring'02, Fall '05)
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