Joseph Ó Ruanaidh

Joseph Ó Ruanaidh

Dr. Joseph Ó Ruanaidh (né Joseph Rooney) born in London, England, in 1967, and raised in Ballyfermot, Dublin, is a frequently cited author in the field of Digital Watermarking.

In 1990 he was awarded three scholarships to go to the University of Cambridge for his PhD where he studied the applications of Bayesian Methods to Digital Signal Processing. The work included novel algorithms for Audio Restoration as well as more general methods for analysing and detecting changes in data. His doctoral dissertation was published in book form by Springer Verlag.

His postdoctoral work at Trinity College Dublin and at the University of Geneva concentrated on the then-emerging field of Digital Watermarking. He published seminal papers on image transform domain watermarks and, in particular, rotation and translation invariant watermarks based on the Fourier Transform. He also published two patents on the technology.

He moved to the United States in 1998, where he worked at Siemens Corporate Research in Princeton, New Jersey and where he played a key role in the development of the patented Siemens directional hearing aid. In 2000, he joined Certus, an Internet start-up, dedicated to making Internet shopping safe. Certus merged with Genuone of Boston, Massachusetts in 2001.

In 2005 he joined GE Healthcare in Piscataway, New Jersey, where he published four patent applications on Optical Sectioning, Line Artifact Removal, Brightfield Image Segmentation and Cell Tracking in microscope images.

He is currently employed by DE Shaw group, a proprietary trading firm based in New York City.

His research is well cited as evidenced in CiteSeer, ISI and the Google Scholar.

elected publications

* J.J.K. Ó Ruanaidh and W. Fitzgerald, Numerical Bayesian Methods Applied to Signal Processing, Springer, New York, 1996, ISBN 9780387946290
* J.J.K. Ó Ruanaidh and T. Pun, "Rotation, scale and translation invariant spread spectrum digital image watermarking," Signal Processing, vol. 66, no. 5, pp. 303-317, May 1998.

* J.J.K. Ó Ruanaidh, R.R. McKay, Y. Zhang, M. Briggs, J. George and Z. Masoumi, "The application of Bayesian spectral analysis to optical sectioning using structured light imaging", Journal of Microscopy, Volume 232 Issue 1, Pages 177-185, Published Online: 25 Sep 2008.

Awards and honors

* Anglo-Irish Science Exchange Scholarship
* Trinity College Cambridge Research Studentship
* IEE Leslie H Paddle Scholarship
* Trinity College Dublin Foundation Scholarship
* The Toronto Prize
* Victor W Graham Prize for Mathematics


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