Tim Poston




Dr Poston is an interdisciplinary scientist, with over seven hundred mentions in the Science Citation and Social Science Citation Indices.

He is co-author of two texts, one on geometry and General Relativity and the other on Catastrophe Theory, that are still in print more than twenty-five years after first publication.

He has published in respected journals and proceedings, from the 5-dimensional geometry of real binary quartics to vibration spectra of crystals, settlement patterns in archaeology, rod buckling, vision (human and machine), 3D medical image analysis, and human-machine interaction.

He is an author of patent applications for a helical surgical probe (allowing an indirect and often safer approach to deep brain lesions, with the guidance algebra to make it usable to the surgeon), for a reach-in interface design, for rapid means of surface and volume rendering, for a rapid instructional animation creation system, and others in the area of image-guided drug delivery.

In collaboration with Intel Corp. he has developed powerful 3D display methods.He is a pioneer in the development and commercial deployment of desktop hand-immersive user interaction.

Current Scientific Interests

3D and 4D geometry as applied to the rapid display (to the senses of sight and touch) of complex computed objects with
real-time mechanical distortion, biomedical simulation and surgical planning. Human factors in productive interaction with complex shapes and structures and with information structures. Access to relevant information in large, dynamic and disparate collections of data.


1964-1967 University of Hull, England, BSc 1st Class Honours in Mathematics.

1967-1969 University of Hull, began graduate work; sabbatical year as Student Union president.

1969-1972 University of Warwick, England, PhD in Mathematics. Thesis title "Fuzzy Geometry"; a finite difference analogue of differential topology.


1972-73 Rio de Janeiro, Brazil. Professor Visitante, Instituto de Matemática Pura e Aplicada.

1973-74 Rochester, New York, USA.Research Fellow, Mathematics and Physics Depts, University of Rochester.

1974-75 Oporto, Portugal. Professor Extraordinário, Mathematics Dept, Universidade do Porto.

1975-80 Geneva, Switzerland. Research Fellow, Advanced Studies Centre, Battelle Institute, and Chercheur Visitant, Physics Dept, Université de Genève.

1980 Bristol, England. Research Fellow, Physics Dept, University of Bristol.

1980-81 Stuttgart, West Germany. Gastprofessor, Institut für Theoretische Physik, Universität Stuttgart.

1981-82 Charleston, South Carolina, USA.Visiting Associate Professor, Dept of Biometry, Medical University of South Carolina.

1982-83 Santa Cruz, California, USA. Visiting Professor, Mathematics Dept, University of California at Santa Cruz.

1983-88 Los Angeles, California, USA. Associate Research Mathematician in the Crump Institute for Medical Engineering, UCLA, and Adjunct Professor at the Mathematics Dept, UCLA.

1988-1992 Pohang, Kyong-Buk, South Korea. Visiting Professor, Mathematics Dept, Pohang Institute of Science and Technology.

1992-1999 Singapore. Chief Scientist, Centre for Information-enhanced Medicine, National University of Singapore.

1999-2000 Singapore. Principal Investigator, Dataweaver project, Johns Hopkins Singapore.

2000-2003 Singapore. Chief Scientist, Digital Medicine Laboratory, Johns Hopkins Singapore.

2003-present Bangalore. Research Consultant, Imaging Technology Lab, GE India Technology Centre.


2004, R Raghavan, T Poston, Design and planning system for improving the survival rate of injected structures, US Patent 6,749,833

2004, W Nowinski, T Poston, Curved surgical instruments and method of mapping a curved path for stereotactic surgery, US Patent 6,701,173

2004, R Raghavan, T Poston and R Viswanathan, Drug Apparatus, system and method for calibrating magnetic resonance receiver coils, US Patent 6,697,661

2003, R Raghavan, R Viswanathan, and T Poston, Drug delivery and catheter systems, apparatus and processes, US Patent 6,572,579

2003, R Raghavan, T Poston and R Viswanathan, Method and apparatus for targeting material delivery to tissue, US Patent 6,549,803

2002, K Venkataraman, T Poston, Volume Rendering, US Patent 6,501,471

2002, R Raghavan, R Viswanathan, and T Poston, Drug delivery and catheter systems, apparatus and processes, US Patent 6,464,662

2002, H T Nguyen, T Poston, M L Brady, M Lee, Method for Modeling and Rendering Complex Surfaces Using Local Height Maps, US Patent 6,441,816


2003, R Raghavan, T Poston and J Kucharczyk, Method for dynamic characterization of density fields in a compound structure, USPTO 20030028090
(Unpublished applications remain confidential.)

Scientific Papers and Books

2004, F Wang, T Poston, K M Lim, C L Teo and E Burdet, Multisensory learning cues using analytical collision detection between a needle and a tube, Proceedings of IEEE Virtual Reality 2004, Haptics Symposium.

2004, K M Lim, F Wang, T Poston, L Zhang, C L Teo, E Burdet, Multi-Scale Simulation For Microsurgery Trainer. Proc. of IEEE International Conference on Robotics and Automation.

2002, K M Lim, T Poston, L Zhang, B F Liu, C L Teo and E Burdet, Multi-scale simulation for a robotic surgical trainer. International Conference on Biomedical Engineering (ICBME2002).

2001, J H Han and T Poston, Chord to point distance accumulation: A new approach to discrete curvature, Pattern Recognition Letters 22:1133-1144.

1998 T Poston, T-T Wong, and P-A Heng, Multiresolution Isosurface Extraction with Adaptive Skeleton Climbing. Computer Graphics Forum 17:137-148, 3 September.

1997 W Lawton, T Poston, R Raghavan, S R Ranjan, R Viswanathan, Y P Wang and Y Yu, Variational Methods in Biomedical Computing, Conf. on Computational Science for the 21st Century, Tours, France, May 5-7, 1997, published by John Wiley, Sussex, England.

1997 Ng Hern, Chua Beng Choon, Luis Serra and Tim Poston, Interactive Vessel Tracing in Volume Data, 1997 Symposium on Interactive 3D Graphics.

1997 T Poston, The Virtual Workbench: a path to use of VR, The Industrial Electronics Handbook, J D Irwin ed., CRC Press and IEEE Press 1997, pp 1390-1393.

1997 K Venkataraman, T Poston, Piece-wise Linear Morphing and Rendering with 3D Textures, Computer Networks and ISDN Systems, March 1997.

1997 T Poston, H T Nguyen, P-A Heng and T-T Wong, Skeleton Climbing: Fast Isosurfaces with Fewer Triangles, Proceedings of Pacific Graphics '97, Seoul, Korea, October, 1997, pp 117-126.

1996/7 L Serra, W L Nowinski, T Poston , Ng Hern , L C Meng, C G Guan and P K Pillay, The Brain Bench: virtual tools for stereotactic frame neurosurgery, Medical Image Analysis 1: 4, pp 317-329.

1996 K Venkataraman, T Poston, Piece-wise Linear Morphing and Rendering with 3D Textures, Compugraphics

1996, Fifth International Conference on Graphics and Visualization Techniques, Dec 16-18, 1996, pp 143-152.

1996 T Poston, W Nowinski, L Serra, B C Chua, H Ng and P Pillay, The Brain Bench: virtual stereotaxis for rapid neurosurgery planning and training, Visualization in Biomedical Computing '96, Springer Lecture Notes in Computer Science 1131, pp 491-500.

1996 L Serra, T Poston, W.Nowinski, B C Chua, H Ng and P Pillay,
The Brain Bench planner and trainer for minimal access surgery, ACM/SIGGRAPH symposium on Virtual Reality Software and Technology '96, ACM Publications 608961, pp 191-192.

1996 T Poston and L Serra, Dextrous Virtual Work, Communications of the ACM, May 1996, 29:5, pp 37-45.

1996 T Poston, L Serra, M Solaiyappan, P A Heng, The Graphics Demands of Virtual Medicine, Computers and Graphics, vol. 20 (1996), pp 61-68.

1996 M Solaiyappan, T Poston, P A Heng, E A Zerhouni, E R McVeigh and M A Guttman, Interactive Visualization for Speedy Non-invasive Cardiac Assessment, IEEE COMPUTER 29:1, pp 55-63.

1995 T Poston, L Serra, W Lawton and B C Chua, Interactive tube finding on a Virtual Workbench, MRCAS 95, proc. Medical Robotics and Computer Assisted Surgery, Baltimore, Maryland, November 5-7, 1995, Wiley-Liss, 1995, pp 119-123.

1995 L Serra, T Poston, H Ng, and B C Chua, Interaction techniques for a virtual workspace, ICAT/VRST '95, (International Conference on Artifical Reality and Tele-existence/Virtual Reality Software and Technology), Chiba, Japan, 1995, pp 221-230.

1995 T Poston, S Fang and W Lawton, "Computing and Approximating Sweeping Surfaces based on Rotation Minimizing Frames" , Proc. 4th International Conference on CAD/CG,Wuhan, China.

1995 L Serra, T Poston, H Ng, P A Heng, and B C Chua, Virtual Space Editing of Tagged MRI Heart Data, CVRMed'95 - First International Conference on Computer Vision, Virtual Reality and Robotics in Medicine April 3-5, 1995 Nice, France, pp 70-76.

1995 W Lawton, T Poston and L Serra, Time-lag Reduction in a Medical Virtual Workbench, in Virtual Reality and its Applications, eds. R Earnshaw, H Jones, J Vince, (BCS conference, Leeds '94), Academic Press 1995
pp 123-148.

1994 T Poston and L Serra, The Virtual Workbench: Dextrous VR, ACM VRST'94, G Singh, S K Feiner, D Thalmann eds., World Scientific, 1994,
pp 111-122.

1994 K M Fairchild, T Poston and W Bricken, Efficient Virtual Collision Detection for Multiple Users in Large Virtual Spaces, ACM VRST'94, G Singh, S K Feiner, D Thalmann eds., World Scientific, 1994, pp 271-285.

1994 J-H Han, L T Kóczy and T Poston, Fuzzy Hough Transform, Pattern Recognition Letters, 1994, pp 649-658.

1994 J-H Han, M J Kim and T Poston, Computation of Fixed Surface Features, Pattern Recognition Letters, 1994, pp 587-593.

1993 T Poston and K M Fairchild, Virtual Aristotelean Physics, IEEE Virtual Reality International Symposium, Seattle 1993.

1993 C-N Lee, T Poston and A Rosenfeld, Holes and Genus of 2D and 3D Digital images, Computer Vision, Graphics and Image Processing: Graphical Models and Image Processing 55, 1993, pp 20-47.

1993 J H Han and T Poston, Distance Accumulation and Planar Curvature, Proceedings Fourth Internat. Conf. on Comp. Vision, 1993, pp 487-491.

1992 T Poston, Kwang-Ick Kim and Ik Soo Lim, A Trainable 'Optic Nerve' for Camera Calibration, Int. Joint Conf. Neural Networks November 1992, Beijing, pp I-652 - I-657.

1992 T Poston and C-N Lee, Mathematical Models of Kerb-crawling, Fourth Korean Workshop on Image Processing & Image Understanding, pp 45-50.

1992 J-H Han, M J Kim and T Poston, Distinguishing Rigidly Rotating Marks in Surface Modeling, Proc. 2nd Pacific Rim International Conf. on Artificial Intelligence, Sept. 15-18, 1992, Seoul, pp II-692 - II-698.

1992 H D Chang, T Poston and K-I Kim, A closed form 3D self-localization for a mobile robot using a single camera and a rectangular guide-mark, Proc. Second International Conf. on Automation, Robotics, and Computer Vision, (ICARCV '92), Singapore, 16-18 September 1992, pp CV-12.3.1 - CV-12.3.5.

1992 T Poston, C-N Lee and H O Bae, Bifurcation Structure of the Eckalbar Stock-Holding Model, Applied Mathematics and Computation 48: 1992, pp 21-43.

1991 T Poston and C-N Lee, Singularities in Shape-from-Contour Estimation, First Korea-Japan Joint Conference on Computer Vision, pp 152-158.

1991 Y Choie, Y Kwon, T Poston and C-N Lee, On Benchmarks for Learning Algorithms, IJCNN '91 Singapore, pp I 723-728.

1991 T Poston, C-N Lee, Y Choie and Y Kwon, Local Minima and Back Propagation, proceedings, IJCNN '91 Seattle, pp II 173-176.

1991 C-N Lee, T Poston and A Rosenfeld, Winding and Euler Numbers for 2D and 3D Digital Images, Computer Vision, Graphics and Image Processing: Graphical Models and Image Processing, 53, 1991, pp 522-537.

1991 T Poston, C-N Lee and H O Bae, An application of the Hopf bifurcation theorem in Economics, J Korean Math. Soc. 28, 1991, pp 215-228.

1991 C-N Lee, T Poston and A Rosenfeld, Representation of Orthogonal Regions by Vertices, Computer Vision, Graphics and Image Processing: Graphical Models and Image Processing, 53, pp 149-156.

1991 T Poston and C T J Dodson, new edition of Tensor Geometry, below, as a Springer Graduate Text in Mathematics.

1988 T Poston, I N Stewart, The Cross-ratio Foliation of Binary Quartic Forms, Geometriæ Dedicata 27, pp 263-280.

1988 F E Yates, T Poston, Interactive microprocessor graphics as aid in physiological modelling: two examples, in Proceedings XI Beltsville Symposium in Agricultural Research, (May 4-8, 1986), US Dept. of Agriculture, Research Instrumentation for the 21 st Century, G R Beecher (ed.), Martinus Nijho Publishers, Dordrecht, Boston, Lancaster: pp 433-446.

1986 F E Yates, T Poston, Rate-controlled delivery of endocrine agents: some paradoxical consequences of controlling the inputs, in Principles & Applications of Rate-Controlled Drug Administration, H A J Struyker-Boudier (ed.), CRC Press, New York: pp 247-272.

1985 E G Buzano, G Geymonat, T Poston, Post-buckling behavior of a non?linearly hyperelastic rod with cross-section invariant under the dihedral group Dn , Archive for Rational Mechanics & Analysis 89(4): pp 307-388.

1984 T Poston, M Diener, On the perfect delay convention or The revolt of the slaved variables, in Chaos and Order in Nature, H Haken (ed.), Springer Series in Synergetics 11, Springer-Verlag, Berlin, Heidelberg, New York: pp 249-268.

1981 T Poston, Catastrophe Theory, in Jahrbuch Überblicke Mathematik 1981, eds. S D Chatterji, B Fuchsteiner, U Kulisch, D Laugwitz, R Liedl, Wissenschaftsverlag, Mannheim, Vienna, Zürich: pp 37-61.

1981 T Poston, Perturbed bifurcation and crystal spectra, in Applications of Nonlinear Analysis in the Physical Sciences, H Amann, N Bazley, K Kirchgässner (eds), Springer-Verlag, Berlin, Heidelberg, New York: pp 77-92.
1981 T Poston, Purity in Applications, in Mathematics Tomorrow, L A Steen (ed.), Springer-Verlag, Berlin, Heidelberg, New York: pp 49-54.

1980 T Poston, Structural instability in systems modelling, in Dynamics of Synergetic Systems, H Haken (ed.) Springer-Verlag, Berlin, Heidelberg, New York: pp 246-254.

1979 T Poston, R J Magnus, Infinite Dimensions and the Fold Catastrophe, in Structural Stability in Physics, W Güttinger, H Eikemeier (eds), Springer-Verlag, Berlin, Heidelberg, New York: pp 430-460.

1979 T Poston, A C Renfrew, Discontinuities in the endogenous change of settlement pattern, in Transformations: Mathematical Approaches to Culture Change,
A C Renfrew, K L Cooke (eds), Academic Press, New York: pp 437-461.

1979 T Poston, The Elements of Catastrophe Theory or The Honing of Occam's Razor, in Transformations: Mathematical Approaches to Culture Change, A C Renfrew, K L Cooke (eds), Academic Press, New York: pp 425-436.

1978 T Poston, I N Stewart, Nonlinear Modelling of Multistable Perception, Behavioral Science 23, 318-334.

1977 T Poston, C T J Dodson, Tensor Geometry: the Geometric Viewpoint and its Uses [differential geometry and relativity text], various reprint and paperback editions, Pitman, London & San Francisco, xiii + 598 pp.

1977 T Poston, I N Stewart, Catastrophe Theory and its Applications, Pitman, London & San Francisco. (Reprint and paperback, 1978; translations in Japanese, Russian and Hungarian: Dover reprint 1997), xviii + 491 pp.

1977 T Poston, R J Magnus, On the full unfolding of the von Kármán equations at a double eigenvalue, Mathematics Report 109, Battelle, Geneva.

1977 T Poston, A G Wilson, Facility Size vs Distance Travelled: Urban Services and the Fold Catastrophe, Environment and Planning A9: 681-686.

1976 T Poston, The computational methods of catastrophe theory, in Overlapping Tendencies in Operations Research, Systems Theory & Cybernetics, E Billeter, M Cuénod, S Klaczko (eds.), Birkhäuser-Verlag, Basel: 461-469.

1976 T Poston, I N Stewart, Taylor Expansions and Catastrophes, Research Notes in Mathematics 7, Pitman, London & San Francisco.

1976 T Poston, A E R Woodcock, A Higher Catastrophe Machine,
Math. Proc. Camb. Phil. Soc. 79: 343-350.

1975 T Poston, A B Budgor, A geometrical approach to calculating the energy and frequency spectra of crystals, J. Comp. Phys. 47: 1-28.

1974 T Poston, A E R Woodcock, A Geometrical Study of the Elementary Catastrophes, Lecture Notes in Mathematics 373, Springer-Verlag, Berlin, Heidelberg, New York.

1973 T Poston, A E R Woodcock, On Zeeman's Catastrophe Machine, Proc. Camb. Phil. Soc. 74: 217-226.


2003, R Poston and T Poston, Tales of the Unexplained (stories for teenagers), Horizon, Singapore, ISBN 981-4130-94-X.






Sir Ashutosh Mukherjee Professor
Mathematical Modelling Unit 
National Institute of Advanced Studies
Indian Institute of Science Campus
Bangalore 560012
Telephone: 91-80-2360 4351
Fax: 91-80-2360 6634
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