Gary E. Christensen

gary-christensen@uiowa.edu

Associate Professor of Electrical and Computer Engineering,
The Robert and Virginia Wheeler Faculty Fellow of Engineering
College of Engineering, The University of Iowa

Selected Papers:

1. RE Morely, GE Christensen, TJ Sullivan, O Kamin. The design of a bit-serial coprocessor to perform multiplication and division on a massively parallel architecture. Frontiers of Massively Parallel Computation, IEEE Computer Society Press, Washington, October 1988, pp. 419-422.
2. RE Morely, GE Christensen, TJ Sullivan. The design of a bit-serial coprocessor to perform multiplication and division on a massively parallel architecture. Systolic Array Processors, Prentice Hall, New York, 1989, pp. 497-503.
3. U Grenander, MI Miller, GE Christensen. Deformable anatomical data bases using global shape models: A position paper for the 1992 electronic imaging of the human body workshop. Proceedings of the Cooperative Working Group on Whole Body 3-D Electronic Imaging of the Human Body, March 1992.
4. GE Christensen, RD Rabbit, MI Miller. A deformable neuroanatomy textbook based on viscous fluid mechanics. Invited paper. In Prince and Runolfsson, editors, Proceedings of the 1993 Conference on Information Sciences and Systems, Johns Hopkins University, March 24-26, 1993, pp. 211-216.
5. MI Miller, GE Christensen, Y Amit, U Grenander. Mathematical textbook of deformable neuroanatomies. Proceedings of the National Academy of Sciences, December 1993, 90(24), pp. 11944-11948.
6. GE Christensen, Rabbit, RD, MI Miller. 3D brain mapping using a deformable neuroanatomy. Physics in Medicine and Biology, March 1994, (39) pp. 609-618.
7. GE Christensen. Deformable shape models for anatomy. Electrical Engineering D.Sc. Dissertation, Washington University, St. Louis, Missouri, August 1994.
8. JW Haller, GE Christensen, MI Miller, M Gado, D McKeel, JG Csernansky, MW Vannier. A comparison of automated and manual segmentation of hippocampus MR images. Image Processing, Loew, editor, Proceedings SPIE 2434, 1995, pp. 206-215.
9. GE Christensen, Rabbit, RD, MI Miller, SC Joshi, U Grenander, T Coogan, DC Van Essen. Topological properties of smooth anatomic maps. In Bizais, Braillot, and Di Paola, editors, Information Processing in Medical Imaging, Kluwer Academic Publishers, Boston, 1995, (3) pp. 101-112.
10. GE Christensen, MI Miller, JL Marsh, MW Vannier. Automatic Analysis of Medical Images Using a Deformable Textbook. Computer Assisted Radiology , Lemke, Inamura, Jaffe, and Vannier, editors, Springer Verlag, Berlin, June, 1995, pp. 146-151.
11. JW Haller, GE Christensen, SC Joshi, MI Miller, MW Vannier. Digital Atlas-based Segmentation of the Hippocampus. Computer Assisted Radiology , Lemke, Inamura, Jaffe, and Vannier, editors, Springer Verlag, Berlin, June, 1995, pp. 152-157.
12. RD Rabbitt, JA Wiess, GE Christensen, Mapping Inter-subject Variations in Tissue Geometry. ASME Summer Bioengineering Conference, Beaver Creek, Colorado, June, 1995.
13. SC Joshi, MI Miller, GE Christensen, T Coogan, U Grenander. The generalized Dirichlet problem for mapping brain manifolds. Proceedings of SPIE's 1995 Geometric Methods in Applied Imaging, San Diego, California, July 9-14, 1995.
14. RD Rabbitt, J Wiess, GE Christensen, MI Miller. Mapping of hyperelastic deformable templates. Proceedings of SPIE's 1995 Geometric Methods in Applied Imaging, San Diego, California, July 9-14, 1995.
15. GE Christensen, MI Miller, U Grenander, MW Vannier. Individualizing Neuroanatomical Atlases Using a Massively Parallel Computer. IEEE Computer, January 1996, pp. 32-38.
16. JW Haller, GE Christensen, SC Joshi, JW Newcomer, MI Miller, JG Csernansky, MW Vannier. Hippocampal MR Morphometry by Pattern Matching. Radiology, 1996, (199) pp. 787-791.
17. GE Christensen, AA Kane, JL Marsh, MW Vannier. Synthesis of an Individualized Cranial Atlas with Dysmorphic Shape. IEEE Proceedings of Mathematical Methods in Biomedical Image Analysis, June, 1996, pp. 309-318.
18. GE Christensen, AA Kane, JL Marsh, MW Vannier. A 3D Deformable Infant CT Atlas, CAR '96: Computer Assisted Radiology, eds. Lemke, Vannier, Inamura, and Farman, Elsevier, New York, June, 1996, pp. 847-852.
19. GE Christensen, RD Rabbit, MI Miller. Deformable Templates Using Large Deformation Kinematics. IEEE Transactions on Image Processing, 5(10), 1996, pp. 1435-1447.
20. YI Sheline, KJ Black, DY Lin, GE Christensen, MH Gado, BS Brunsden, and MW Vannier. Stereological MRI Volumetry of the Frontal Lobe. Psychiatry Research: Neuroimaging, 67(3), Oct., 1996, pp. 203-214.
21. AA Kane, LJ Lo, GE Christensen, MW Vannier, JL Marsh. Relationship between Bone and Muscles of Mastication in Hemifacial Microsomia, Plastic and Reconstructive Surgery, 99, 1997, pp. 990-999.
22. MW Vannier, JL Marsh, G Wang, GE Christensen, and AA Kane. Surgical Imaging Systems. Surgical Technology International V, 1997, pp. 33-1 to 33-7.
23. JW Haller, A Banerjee, GE Christensen, M Gado, SC Joshi, MI Miller, Y Sheline, MW Vannier, JG Csernansky. 3D Hippocampal Morphometry by High Dimensional Transformation of a Neuroanatomical Atlas. Radiology 202(2), Feb. 1997, pp. 504-510.
24. GE Christensen, SC Joshi, and MI Miller. Volumetric Transformation of Brain Anatomy. IEEE Transactions on Medical Imaging. 16(6), Dec. 1997, pp. 864-877.
25. GE Christensen, MIMD vs. SIMD Parallel Processing: A Case Study in 3D Medical Image Registration. Parallel Computing 24, 1998, pp. 1369-1383.
26. GE Christensen, HJ Johnson, JW Haller, MW Vannier, JL Marsh Synthesizing average 3D anatomical shapes using deformable templates, Medical Imaging 1999: Image Processing, ed. KM Hanson, SPIE 3661, 1999, pp. 574-582.
27. GE Christensen, Consistent Linear-Elastic Transformations for Image Matching, Information Processing in Medical Imaging, LCNS 1613, Springer-Verlag, 1999, pp. 224-237.
28. GE Christensen, P Yin, MW Vannier, KSC Chao, JL Dempsey, JF Williamson. Large-deformation image registration using fluid landmarks, Image Analysis and Interpretation, 2000. Proceedings. 4th IEEE Southwest Symposium , 2000, pp. 269 -273.
29. GE Christensen, HJ Johnson, Consistent Image Registration, IEEE Transactions on Medical Imaging. 20(7), July 2001, pp. 568-582.
30. GE Christensen, B Carlson, KSC Chao, P Yin, PW Grigsby, K Nguyen, JF Dempsey, FA Lerma, KT Bae, MW Vannier, JF Williamson, Image-Based Dose Planning of Intracavitary Brachytherapy: Registration of Serial Imaging Studies using Deformable Anatomic Templates, International Journal of Radiation, Oncology, Biology, and Physics. 51(1), 2001, pp. 227-243.
31. CA Perlyn, JL Marsh, MW Vannier, AA Kane, P Koppel, KW Clark, GE Christensen, R Knapp, LJ Lo, D Govier, The Craniofacial Anomalies Archive at St. Louis Children's Hospital: 20 years of Craniofacial Imaging Experience. Plastic and Reconstructive Surgery. 108(7), 2001, pp. 1862-1870.
32. GE Christensen, J He, Consistent Nonlinear Elastic Image Registration, IEEE Proceedings of Mathematical Methods in Biomedical Image Analysis, Kauai, Hawaii. Dec. 2001, pp. 37-43.
33. HJ Johnson, GE Christensen, Consistent Landmark and Intensity-based Image Registration, IEEE Transactions on Medical Imaging, 21(5), 2002, pp. 450-461.
34. GE Christensen, HJ Johnson, Invertibility and Transitivity Analysis for Nonrigid Image Registration, accepted for publication in Journal of Electronic Imaging.
    

Patents:

1. MI Miller, GE Christensen, SC Joshi, U Grenander. Method and Apparatus for Image Registration. United States, patent number 6,009,212. Issued 12/28/99.
2. MI Miller, GE Christensen, SC Joshi. Rapid Convolution Based Large Deformation Image Matching via Landmark and Volume Imagery. United States, patent number 6,226,418. Issued 5/1/01.
3. MI Miller, GE Christensen, SC Joshi. Rapid Convolution Based Large Deformation Image Matching via Landmark and Volume Imagery. United States, patent number 6,408,107. Issued 6/18/02.