Researcher Portfolio

Liu Tong (Dr)
Senior Research Engineer III
6793 8326
Precision Measurements

LIU Tong received his B.Sc. and M.Eng. from the Department of Applied Physics, Tsinghua University, China in 1998 and 1991, and his Ph.D. from the School of Mechanical and Production Engineering, Nanyang Technological University (NTU), Singapore, in 2001 respectively. From 1991 to 1998, he worked as a lecturer, then an associate professor in Tsinghua University. From 2001 to 2003, he worked as a Research Fellow in NTU. After that he joined the precision measurements group in Singapore Institute of Manufacturing Technology (SIMTech), Agency for Science Technology and Research (A*STAR). He is now a senior research engineer and his research interests include advanced X-ray computed tomography and stereo-vision inspection for industrial applications.

Research Interest:X-ray computed tomography, stereovision, special lighting
BioNotes:PhD from Nanyang Technological University in 2001
MEng from Tsinghua University in 1991
BEng from Tsinghua University in 1988
  1. R. X. Huang, P. F. Li, T. Liu, “X-ray microtomography and finite element modelling of compressive failure mechanism in cenosphere epoxy syntactic foams”, Composite Structures, 140(2016) 157-165, DOI:

  2. T. Liu, R. X. Huang and P. F. Li, “Cone-beam CT reconstruction along any orientation of interest”, Journal of X-ray Science and Technology 23(2015) 773-782, DOI 10.3233/XST-150527, IOS Press

  3. T. Liu , “Cone-beam reconstruction for planar object”, NDT & E International, vol. 45, pp. 9-15 (2012)

  4. T. Liu, L.M. Sim, J. Xu, Targeted reconstruction with differential planar computed tomography, NDT & E. International 43(2) (2010), 116–122.

  5. Z. L. Li, T. Liu, C. C. Khin, A. C. Tan, L. E. Khoong, H. Y. Zheng and W. Zhou, "Direct patterning in sub-surface of stainless steel using laser pulses", Optics Express, vol. 18(15), pp. 15990-15997 (2010)

  6. T. Liu, "Direct Central Ray Determination in Micro-CT", Optical Engineering, vol. 48(NA), pp. 46501-46506 (2009)

  7. H. Li, T. Liu, C. Y Wen, Y. C. Soh, and Y. Zhang, ‘All-fiber acousto-optical tunable filter with loop structure’, OE Letters, Vol.42 (12),  pp. 3409-3410 (2003)

  8. T. LIU, Q. J. Wang, Y. C. Soh, ‘A stable dual-wavelength channel selectable erbium-doped fiber ring laser using channel wavelength generator,’ Optics Communications, Vol. 225, pp. 89-94 (2003)

  9. A. Asundi, T. Liu and G. B. Chai, ‘Dynamic Phase-Shifting Photoelasticity’, Applied  Optics, Vol. 40 (22) p3654 (2001)

  10. S. Shen, T. Liu, and J. H. Guo, “Optical phase-shift detection of surface plasmon resonance”, Appl. Optics, 37(10), 1747-1751 (1998)

Commercialized patents:

1.    Differential reconstruction for CT inspection of planar objects

2.    Lighting method and apparatus for stereo vision for wirebonding inspection

3.    Method and apparatus for inclusion detection in glass


Awards:The Best Research Award of SIMTech 2007 (first) from Singapore Institute of Manufacturing Technology of A-STAR in 2008
The Best Industry Project Award of SIMTech 2004 from Singapore Institute of Manufacturing Technology of A-STAR in 2005
The Best Research Award of SIMTech 2004 from Singapore Institute of Manufacturing Technology of A-STAR in 2005
The Best  Staff Award of Tsinghua 1994 from Tsinghua university in 1994