Dr. B. Roy Frieden

Professor Emeritus
Optical Sciences Center
The University of Arizona

 

Dr. Roy Frieden

Consulting:

  • NASA Second-Generation Space Telescope, Product Integrity Team:  2001-date
  • U.S. Environmental Protection Agency, research on achieving sustainable technology:  2000-date
  • Vaytec Corporation:  1993
  • Siemens Corporate Research:  1992
  • Martin-Marietta Corporation:  1991
  • Los Alamos National Laboratory:  1989
  • Analytics, Inc. (Pa.):  1988-1990
  • Jet Propulsion Laboratory:  1987-1990
  • Sandia National Laboratories:  1987-1989
  • Mission Research Corporation:  1987
  • Dupont de Nemours, Inc.:  1986
  • Pacific-Sierra Corporation:  1986
  • Ball Aerospace:  1985
  • Grumman Aerospace Corporation:  1983
  • National Academy of Sciences:  1981
  • Aberdeen Proving Ground:  1980-1990
  • Aerospace Corporation:  1980-1990
  • Army Research Office, Workshop on Resolution:  1981
  • DFVLR, West Germany:  1980
  • Kitt Peak National Observatory:  1979-1981
  • Philco-Ford Corporation:  1973-1977

Major Accomplishments:

  • Initiated field of laser beam shaping (1965)

  • Invented concept of the three-dimensional optical transfer function (1967)

  • Invented an “extrapolating pupil”, a pupil coating function that acts in real-time to extrapolate its aperture size, producing unlimited resolution (1969)

  • Invented maximum entropy (MaxEnt) image restoration (1972)

  • Developing EPI (Extreme Physical Information) principle for finding the probability laws governing unknown physical systems (1989-present)

  • Based upon use of EPI, showed that in situ breast cancer should grow with time t as simply tg,  with g the Fibonacci golden mean 1.618… (2002)

  • Based upon use of  EPI, predicted that Fisher information, like Boltzmann entropy, changes monotonically with the time, giving a Fisher-based expression of the 2nd law of thermodynamics (1990).

  • Derived analytical expressions for the Weinberg-Salam angle and Cabibbo angle of particle physics (2002)

Professional Society Affiliations, Listings:

  • Associate Editor, Journal of the Optical Society of America (1979-83)

  • American Physical Society

  • Optical Society of America, Fellow

  • American Association for the Advancement of Science, Fellow

  • SPIE, Fellow

  • Pi Mu Epsilon

  • Sigma Xi

  • Listed in American Men of Science, Who’s Who in the West, Who’s Who in Engineering

Areas of Current Research:

  • Estimating the probability density functions, and physics, of unknown systems by the use of EPI (Extreme Physical Information)

  • Modeling in situ human cancer growth by the use of EPI ; developing procedures for growth suppression

  • Modeling ecological systems by the use of Fisher information, for the purpose of achieving sustainable technology

  • Estimating the monetary valuation of financial securities by the use of EPI

  • Development of algorithms for restoring images – deconvolution and blind deconvolution

Courses Developed and Formerly Taught at the Optical Sciences Center

  • Information theory in optics

  • Methods of image restoration and enhancement

  • Probability and statistics in optics

  • Optical properties of the atmosphere and oceans

  • Estimation methods in optics

  • Statistical properties of light

  • Information and the foundations of physics (jointly in physics curriculum)


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Last update 09/10/2004

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