From: freeman@olympus.as.arizona.edu (Jonathan Freeman)
Newsgroups: misc.jobs.resumes
Subject: Ph.D Applied Mathematician with Image Processing Background
Date: 28 Jul 92 17:00:13 GMT
Distribution: usa
Organization: University of Arizona, Tucson, AZ


Jonathan D. Freeman,  Ph.D
Steward Observatory 
University of Arizona 
Tucson, Arizona 85721 
602-325-7771 
email: jfreeman@olympus.as.arizona.edu

SUMMARY:

 A Ph.D Applied Mathematician with over ten years research experience
 in high resolution astronomical imaging. Extensive background in 
 image and Fourier phase reconstruction. Major technical 
 expertise is in statistical estimation techniques associated 
 with imaging.


EXPERIENCE:

STEWARD OBSERVATORY, University of Arizona, Tucson, AZ 

Post-doctoral Fellow, December 1989 - Present
 Researched, developed, and implemented in Fortran novel applications of 
 statistical methods to the estimation of parameters of astronomical objects 
 from high resolution images. Used robust non-linear regression to estimate 
 properties of binary stars, asteroids, and the Jovian satellite Io. These
 programs were developed to provide a number of users reliable mathematical
 tools. Also applied resampling techniques like the jackknife for estimation 
 of the errors in the parameter estimates. Responsible for purchase
 and maintenance of group workstation. 

Graduate Assistant, 1986 - December 1989 
 Analyzed the Fourier phase reconstruction technique called the bispectrum. 
 Developed an analytical model for the mean, variance, and covariance of 
 the bispectrum. Evaluated the model by Monte Carlo integration and compared
 the result to the same quantities computed from observed data. Developed
 techniques to estimate the Fourier phase from the bispectrum and compared
 the results to other imaging methods. Used conjugate direction and conjugate 
 gradient optimization algorithms to estimate binary star parameters from the 
 bispectrum. 

Undergraduate and graduate research assistant, 1980 - 1985
 Developed a statistical model for the imaging technique called shift-and-add. 
 Performed data reduction and analysis. 

NATIONAL OPTICAL ASTRONOMY OBSERVATORIES, Tucson, AZ 

 Internship, 1985 - 1986
 Determined the feasibility of using the bispectrum to reconstruct
 the Fourier phase of an image. Experimented with image reconstruction 
 techniques like maximum entropy. 


EDUCATION:

 Ph.D in Applied Mathematics from University of Arizona, December 1989. 
 Dissertation - Estimation of Astronomical Images from the Bispectrum of  
 Atmospherically Distorted Infrared Data. 

 B.S. in Physics (with High Distinction and with Honors) from University of
 Arizona, 1982. 


ADDITIONAL INFORMATION:

 Phi Beta Kappa 
 Member Mathematical Association of America
 American Statistical Association 


RECENT PUBLICATIONS:

  ``Robust Regression Applied to Estimation of Object Parameters
  from Astronomical Speckle Interferometry'',  Freeman, J.D.,
  Henry, T.J.,  McCarthy, D.W.,  J.  Opt.  Soc.  Amer.  A.,
  accepted 1992.

 ``Application of Robust Techniques to Model Fitting of Infrared 
 Speckle Results of Binary and Extended Sources'',
 Freeman, J.D., Henry, T.J.,  McCarthy, D.W.,  1991 
 Proc.  NOAO-ESO  Conf.   High  Resolution  Imaging 
 by  Interferometry   II,  in press. 

 ``Global High Resolution Imaging of Hotspots on Io'',
 McLeod,B.A., McCarthy, D.W., Freeman, J.D.,   1991, 
 Astron. J., 102,  No. 4,  1485.

 ``A Nearby Solar Type Star with a Low Mass Companion:
 New Sensitivity Limits Reached Using Speckle Imaging''
 Henry, T.J.,  McCarthy, D.W., Freeman, J.D., Christou, J.C.,
 1992,  Astron. J., 103, No. 4, 1369.

 ``Some Statistical Properties of the Bispectrum of
 One-Dimensional Infrared Astronomical Speckle Data'',
 Freeman, J.D., 1990, Proc. SPIE, 1237,  436.

 ``Optimization Techniques Applied to the Bispectrum of
 One-Dimensional Infrared Astronomical Speckle Data'',
 Freeman, J.D., 1990, Proc. SPIE, 1237,  460.

 ``Application of Bispectrum Analysis for Phase Recovery 
 from One-Dimensional Infrared Speckle Data'',
 Freeman, J.D., McCarthy, D.W., Christou, J.C., Cobb, M.L.,
 1988,  J.  Opt.  Soc.  Amer.  A,  5, 406. 


CITIZENSHIP: UNITED STATES OF AMERICA 

LANGUAGES: German, some Spanish 
Newsgroups: misc.jobs.resumes,ne.jobs