Joseph Ó Ruanaidh (''aka'' Joseph Rooney) is a scientist and frequently cited author in the field of

digital watermarking A digital watermark is a kind of marker covertly embedded in a noise-tolerant signal such as audio, video or image data. It is typically used to identify ownership of the copyright of such signal. "Watermarking" is the process of hiding digital in ...

Early life

He was born in

London London is the capital and List of urban areas in the United Kingdom, largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary dow ...

England England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe b ...

in 1967 and raised in

Ballyfermot Ballyfermot () is a suburb town nw of the city aside Dublin, Ireland. It is located, seven kilometres (5 miles) west of the city centre, south of Phoenix Park, it is bordered on the north by Chapelizod, on the south by Bluebell; on the east ...

Dublin Dublin (; , or ) is the capital and largest city of Ireland. On a bay at the mouth of the River Liffey, it is in the province of Leinster, bordered on the south by the Dublin Mountains, a part of the Wicklow Mountains range. At the 2016 c ...

. He attended the O'Connell School in Dublin. He studied on his own, without supervision, to obtain the necessary qualifications to enter

Trinity College Dublin , name_Latin = Collegium Sanctae et Individuae Trinitatis Reginae Elizabethae juxta Dublin , motto = ''Perpetuis futuris temporibus duraturam'' (Latin) , motto_lang = la , motto_English = It will last i ...

in 1986. In 1988 he was awarded a Trinity College Foundation Scholarship, where he was also jointly awarded the St Patrick's Benevolent Society of Toronto prize for obtaining the highest overall marks in the scholarship examinations in the university that year. In 1990, he graduated with a degree in Engineering from Trinity College Dublin. He was then awarded three scholarships to go to the

University of Cambridge The University of Cambridge is a public collegiate research university in Cambridge, England. Founded in 1209 and granted a royal charter by Henry III in 1231, Cambridge is the world's third oldest surviving university and one of its most pr ...

for his PhD where he studied the applications of

Bayesian Thomas Bayes (/beɪz/; c. 1701 – 1761) was an English statistician, philosopher, and Presbyterian minister. Bayesian () refers either to a range of concepts and approaches that relate to statistical methods based on Bayes' theorem, or a followe ...

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.

Early career

His postdoctoral work at

and at the

University of Geneva The University of Geneva (French: ''Université de Genève'') is a public research university located in Geneva, Switzerland. It was founded in 1559 by John Calvin as a theological seminary. It remained focused on theology until the 17th centur ...

concentrated on the then-emerging field of

. He published seminal papers on image transform domain watermarks and, in particular, rotation and translation invariant watermarks based on the Fourier transform.

Career

He moved to the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...

in 1998, where he worked at Siemens Corporate Research in

Princeton Princeton University is a private research university in Princeton, New Jersey. Founded in 1746 in Elizabeth as the College of New Jersey, Princeton is the fourth-oldest institution of higher education in the United States and one of the ni ...

New Jersey New Jersey is a state in the Mid-Atlantic and Northeastern regions of the United States. It is bordered on the north and east by the state of New York; on the east, southeast, and south by the Atlantic Ocean; on the west by the Delaware ...

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. In 2005 he joined

GE Healthcare GE HealthCare is a subsidiary of American multinational conglomerate General Electric incorporated in New York and headquartered in Chicago, Illinois. As of 2017, it is a manufacturer and distributor of diagnostic imaging agents and radiopharma ...

Piscataway Piscataway may refer to: *Piscataway people, a Native American ethnic group native to the southern Mid-Atlantic States *Piscataway language *Piscataway, Maryland, an unincorporated community *Piscataway, New Jersey, a township *Piscataway Creek, Ma ...

, where he publishe
four patent applications
on

optical sectioning Optical sectioning is the process by which a suitably designed microscope can produce clear images of focal planes deep within a thick sample. This is used to reduce the need for thin sectioning using instruments such as the microtome. Many differ ...

, Line Artifact Removal, Brightfield

image segmentation In digital image processing and computer vision, image segmentation is the process of partitioning a digital image into multiple image segments, also known as image regions or image objects ( sets of pixels). The goal of segmentation is to simpli ...

and Cell Tracking in microscope images. He was employed by DE Shaw group, a

proprietary trading Proprietary trading (also known as prop trading) occurs when a trader trades stocks, bonds, currencies, commodities, their derivatives, or other financial instruments with the firm's own money (instead of using depositors' money) in order to m ...

firm based in

New York City New York, often called New York City or NYC, is the most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the most densely populated major city in the Un ...

, from February 2008 until February 2010. He currently is employed b
Apple
in

Cupertino, California Cupertino ( ) is a city in Santa Clara County, California, United States, directly west of San Jose on the western edge of the Santa Clara Valley with portions extending into the foothills of the Santa Cruz Mountains. The population was 57,82 ...

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

Awards and honours

* Anglo-Irish Science Exchange Scholarship * Trinity College Cambridge Research Studentship * IEE Leslie H Paddle Scholarship * Trinity College Dublin Foundation Scholarship * St Patrick's Benevolent Society of Toronto prize * Victor W Graham Prize for Mathematics 1988

Selected publications

* J.J.K. Ó Ruanaidh and W. Fitzgerald, Numerical Bayesian Methods Applied to Signal Processing, Springer, New York, 1996, * 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.

References

{{DEFAULTSORT:ORuanaidh, Joseph 1967 births 20th-century Irish scientists 21st-century Irish scientists Living people Engineers from Dublin (city) English emigrants to Ireland Academics of Trinity College Dublin Alumni of Trinity College, Cambridge Alumni of Trinity College Dublin Irish Air Corps personnel Irish computer scientists People educated at O'Connell School Scholars of Trinity College Dublin