Dr. Tamás Várady, PhD, DSc |
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Head of Laboratory, Senior Research Fellow | ||

Geometric Modelling Laboratory, Computer and Automation Research Institute |
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Address: 1111 Budapest, Kende u. 13-17. Hungary | ||

Phone: 36-1-3868782 | ||

Fax: 36-1-4667503 | ||

e-mail: varady@sztaki.hu |

Short Resume

Selected Publications

Tamás Várady's personal homepage

Tamas Varady received a DiplIng in Electrical Engineering from the Technical University of Budapest, in 1976. He obtained an MSc degree in 1977 (Statistical and computer graphics methods for recognizing the change of stochastic processes) and a candidate's degree of technical sciences (PhD) from the Hungarian Academy of Sciences in 1986 with a dissertation titled the 'Integration of free-form surfaces into a volumetric modeller'. He defended his DSc (Doctor of Science of the Academy) degree in 1999, the title of his doctoral dissertation was 'Vertex blending surfaces in computer aided geometric design'.

Tamas Varady joined the Computer and Automation Research Institute of the Hungarian Academy of Sciences in 1976, where he is a senior research fellow. He led the CAD Department at the Computer and Automation Research Institute between 1984 and 1990. He has been heading the Geometric Modelling Laboratory in the Institute since January 1991. In the last 20 years he directed several research projects on geometric modelling and software developments for various industrial applications including international projects as well.

He was a visiting scholar at the BUILD Group, Engineering Department, Cambridge University, England in 1982 and 1983/84. He was a visiting professor at the Department of Computer Science and Engineering, Arizona State University, Tempe in 1992/93. He obtained a Fulbright Scholarship in 1996 to visit the Computer Science Department of Purdue University, Indiana.

In 1991, he was the cofounder of CADMUS Consulting and Development Ltd, where he acts as President. Tamas Varady also has a rich consulting experience for Hungarian, European and U.S. companies.

Tamas Varady is a member of the Editorial Board of the Computer Aided Design Journal (Butterworth-Heinemann) and the organizing committees of several international conferences. His recent research interest include surface and solid modelling, free-form surface representation with general topology, n-sided patches, curve and surface fitting, edge and vertex blending, reverse engineering, segmentation techniques and model creation for free-form and regular objects. He is author or co-author of 72 publications (62 in English), out of these 45 published in refereed journals or conference proceedings. Publications mostly contributed to the CAGD field. International citations: above 180.

- Várady, T., Pratt, M.J.:
*Design Techniques for the Definition of Solid Objects with Free-Form Geometry.*Computer Aided Geometric Design, Vol. 1, No 2, 1985, pp 207-225. - Várady, T.:
*Survey and new results in n-sided patch generation.*The Mathematics of Surfaces II., (Proc. of the 2nd IMA Conf.), Ed.: R.R. Martin, Oxford University Press, 1987. - Várady, T., Vida, J., Martin, R.R.:
*Parametric Blending in a Boundary Representation Solid Modeller.*The Mathematics of Surfaces III, (Proc. of the 3rd IMA Conf.), Ed.: J. Handscomb, Oxford University Press, 1989. pp 171-197. - Várady, T., Martin, R.R., Vida, J.:
*Topological Considerations in Blending Boundary Representation Solid Models*, “Theory and Practice of Geometric Modelling”. Eds.: W. Strasser, H.P. Seidel, Springer-Verlag, 1989, pp 205-220. - Várady, T., Gaál, B., Jared, G.E.M.:
*Identifying features in solid modelling*, Computers in Industry, (Joe Hatvany Memorial Issue), Vol 14, No 1-3, 1990, pp 43-51. - Várady, T.:
*Overlap patches: a new scheme for interpolating curve networks with n-sided regions*, Computer Aided Geometric Design, Vol 8, No 1, 1991, pp 7-27. - Vida, J., Martin, R.R., Várady, T.:
*A survey of blending methods that use parametric surfaces*, Computer-Aided Design, 26(5), 1994, pp 341-365. - Hermann, T., Lukács, G., Várady, T.:
*Techniques for variable radius rolling ball blends*, In: Mathematical Methods for Curves and Surfaces, (Eds.: M. Daehlen, T. Lyche and L.L. Schumaker), Vanderbilt University Press,1995, pp 225-236. - Várady, T., Rockwood, A. P.:
*Vertex blending based on the setback split*, In: Mathematical Methods for Curves and Surfaces, (Eds.: M. Daehlen, T. Lyche, L.L. Schumaker), Vanderbilt University Press, 1995, pp 527-542. - Várady, T., Hermann T.:
*Best fit surface curvature at vertices of topologically irregular curve networks*, In: The Mathematics of Surfaces VI, Eds.: G. Mullineux, Clarendon Press, Oxford, 1996, pp 411-427. - Hermann, T., Kovács, Z., Várady, T.:
*Special applications in surface fitting*, In: Proceedings of the Conference of Theory and Practice of Geometric Modeling, Blaubeuren II, October 14-18, 1996, pp 15-31. - Várady, T., Martin, R.R., Cox, J.:
*Reverse Engineering of Geometric Models - An Introduction*, Computer-Aided Design, 29 (4), 1997, pp 255-269. - Várady, T., Rockwood, A.:
*A geometric construction for setback vertex blending*. Computer-Aided Design, 29 (6), 1997, pp 413-425 - Várady, T., Hoffmann, C. M.:
*Vertex blending: problems and solutions*, In: Mathematical Methods for Curves and Surfaces II, Eds. M. Daehlen, T. Lyche, L.L. Schumaker, Vanderbilt University Press, 1998, pp 501 - 527 - T. VÁRADY, P. BENKÕ, G. KÓS, G. RENNER, V. WEISS:
*Segmentation and Surface Fitting in Reverse Engineering*,In: Machining Impossible Shapes, Eds.: G. Olling, B. K. Choi, R. B. Jerard, IFIP TC5 WG5.3, Kluwer Academic, 1999, pp 167 - 172 - Renner, G., Várady, T. Weiss, V. :
*Reverse Engineering of Free-form Features*, PROLAMAT 98, September, Trento, 1998, CD Proceedings - Várady, T., Kós, G., Benkõ, P.:
*Reverse Engineering Regular Objects: Simple segmentation and surface fitting procedures*, IJSM (International Journal of Shape Modeling), (Procs. of CAGD: New Trends and Applications, Crete, 1997), Vol.4, 1998, pp 127 -142 - V. WEISS, G. RENNER, T. VÁRADY:
*Reconstruction of swept free-form features from measured data points*,Proc. of 32nd CIRP International Seminar on Manufacturing Systems, May 24-26, 1999 Leuven, Belgium, 1999 - P. BENKÕ, G. KÓS, T. VÁRADY:
*Detecting translational and rotational symmetries in reverse engineering*,In: CD proceedings of Advanced Research Workshop on Confluence of Computer Vision and Computer Graphics, 29-31 August 1999, Ljubjana - G. KÓS, R. R. MARTIN, T. VÁRADY:
*Methods to recover constant radius rolling ball blends in reverse engineering*, Computer Aided Geometric Design, Vol 17, 2000. pp 127 - 160 - T. VÁRADY, P. BENKÕ:
*Reverse Engineering B-rep models from Multiple Point Clouds*,

**In:**Geometric Modelling and Processing 2000, Eds: R.Martin, W.Wang, IEEE Computer Society, 2000, pp 3-12 - P. BENKÕ, T. VÁRADY:
*Best Fit Translational and Rotational Surfaces for Reverse Engineering Shapes*,**In:**9th IMA Conference on the Mathematics of Surfaces, Eds: R. Cipolla, R. Martin; Springer 2000, pp 71-81 - T. VÁRADY, P. BENKÕ, G. KÓS, A. ROCKWOOD:
*Implicit surfaces revisited - I-Patches*,

**Computing**Suppl 14, May 2001, pp 323-336 - P. BENKÕ, R. R. MARTIN, T. VÁRADY:
*Algorithms for Reverse Engineering Boundary Representation Models*,

**Computer Aided Design**, Vol 33, No 11, 2001, pp 839-851 - V. WEISS, G. RENNER, T. VÁRADY:
*Reconstruction of swept free-form features from measured data points*,

**CIRP Journal of Manufacturing Systems**, 2001 - P. BENKÕ, G. KÓS, T. VÁRADY, L. ANDOR, R. R. MARTIN:
*Constrained Fitting in Reverse Engineering*,

**Computer Aided Geometric Design**, Vol 19, 2002, pp 173-205 - V. WEISS, L. ANDOR, G. RENNER, T. VÁRADY:
*Advanced surface fitting techniques*,

**Computer Aided Geometric Design**, Vol 19, 2002 pp 19-42 - T. VÁRADY, R. R. MARTIN:
*Reverse Engineering*,

**Handbook of Computer Aided Geometric Design**, Eds: G. Farin, J. Hoschek, M. S. Kim; Springer, 2002, pp 651-681 - P. BENKÕ, T. VÁRADY:
*Direct Segmentation of Smooth Multiple Point Regions*,

**Proc. GMP 2002**, Eds: H. Suzuki, R. Martin, IEEE 2002, pp 169-178