Dr Johann A Briffa
Lecturer
Qualifications: PhD, M.Phil., B.Eng.(Hons.)
Email: j.briffa@surrey.ac.uk
Phone: 01483 68 9630
Room no: 12 BB 02
Further information
Biography
My background is primarily in Engineering, with my first degree in electrical engineering from the University of Malta. I was introduced to the field of Coding Theory during my final year project; I followed this with a research Masters degree on Turbo coding, again from the University of Malta. I then moved to the United States for a few years, where I pursued a PhD in systems engineering at Oakland University, Rochester, MI. This involved a combination of Control Systems and Image Processing, together with my previous knowledge of Coding Theory, resulting in my doctoral thesis on Information Hiding in Images.
Following my PhD, I spent four years as a Lecturer with the University of Malta, and am currently working on the Error Control Watermarking project with Dr George Schaathun.
Research Interests
My general research interests involve Multimedia, Signal Processing, Security, and Coding (Error-Control, Compression, and Cryptography). I particularly like applications that cross the boundaries between the different fields, and have also dabbled in the application of Parallel Computing, particularly cluster and grid computing.
Publications
- Johann A. Briffa, Hans Georg Schaathun, Improvement of the Davey-MacKay Construction, Proceedings of the IEEE International Symposium on Information Theory and its Applications, Auckland, New Zealand, Dec 7-10, 2008. Accepted for publication.
- Ainuddin Wahid Abdul Wahab, Johann A. Briffa, Hans Georg Schaathun, On the Performance of Wavelet Decomposition Steganalysis with JSteg Steganography, 7th International Workshop on Digital Watermarking, Busan, Korea, Nov 10-12, 2008. Accepted for publication.
- Johann A. Briffa, Hans Georg Schaathun, Non-binary turbo codes and applications, Proceedings of the IEEE International Symposium on Turbo Codes & related topics, pp. 294-298, Lausanne, Switzerland, Sep 1-5, 2008.
- Johann A. Briffa, Manohar Das, Channel models for high-capacity information hiding in images, Proceedings of the SPIE, vol. 4793, Seattle WA, Jul 7-11, 2002.
- Johann A. Briffa, Victor Buttigieg, Interleavers and Termination in Unpunctured Symmetric Turbo Codes, IEE Proceedings in Communications, vol. 149 no. 1, pp. 6-12, February 2002.
- Johann A. Briffa, Victor Buttigieg, Interleavers for Unpunctured Symmetric Turbo Codes, Proceedings of the IEEE International Symposium on Information Theory, p. 450, Sorrento, Italy, Jun 25-30, 2000.
- Johann A. Briffa, Victor Buttigieg, Error Performance of Tunstall Coding, IEE Electronics Letters, vol. 35 no. 23, pp. 2021-2022, 11th November 1999.
- Johann A. Briffa, Victor Buttigieg, Investigation of the Error Performance of Tunstall Coding, Proceedings of the IEEE International Symposium on Information Theory, p. 202, MIT, Cambridge MA, Aug 16-21,1998.
