Dr. Tong Liu Profile

Dr. Tong Liu

at Singapore Institute of Manufacturing Technology

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Author

Publications (15)

Proceedings Article | 15 February 2024 Paper

Transformer-based smart inspection for agricultural products via x-ray images

Chaoyu Dong, Alvin Wei Wen Tan, Tong Liu, Fang Cheng, Kemao Qian

Proceedings Volume 13069, 1306919 (2024) https://doi.org/10.1117/12.3023396

KEYWORDS: Agriculture, Inspection, X-rays, X-ray imaging, X-ray sources, Neural networks, Sensors, Education and training, Transformers, X-ray detectors

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Proceedings Article | 15 April 2010 Paper

Planar cone-beam computed tomography for high-resolution industrial application

Tong Liu

Proceedings Volume 7522, 75223R (2010) https://doi.org/10.1117/12.851124

KEYWORDS: Reconstruction algorithms, Computed tomography, Sensors, 3D image reconstruction, Inspection, X-ray computed tomography, CT reconstruction, X-rays, 3D image processing, Interfaces

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Proceedings Article | 15 April 2010 Paper

Pincushion distortion correction in x-ray imaging with an image intensifier

Tong Liu, A. Malcolm, Jian Xu

Proceedings Volume 7522, 75223T (2010) https://doi.org/10.1117/12.851232

KEYWORDS: Distortion, Image intensifiers, Calibration, X-ray imaging, CCD cameras, X-rays, Imaging systems, Inspection, Charge-coupled devices, Image processing

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SPIE Journal Paper | 1 April 2009

Direct central ray determination in computed microtomography

Tong Liu

OE, Vol. 48, Issue 04, 046501, (April 2009) https://doi.org/10.1117/12.10.1117/1.3116707

KEYWORDS: Computed tomography, Calibration, Sensors, Optical engineering, Inspection, Computing systems, X-rays, CT reconstruction, X-ray computed tomography, Foam

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Proceedings Article | 3 October 2008 Paper

A hybrid x-ray and microscopy method for diametrical profile measurement of internal holes in steel components

T. Liu, A. Malcolm, X. M. Yin, S. Liew, T. Prawiradiraja

Proceedings Volume 7155, 71551E (2008) https://doi.org/10.1117/12.814550

KEYWORDS: X-rays, Microscopes, X-ray microscopy, Inspection, Sensors, Microscopy, X-ray imaging, Polishing, X-ray technology, X-ray sources

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SPIE Journal Paper | 1 June 2006

Comparison between four methods for central ray determination with wire phantoms in micro-computed-tomography systems

Tong Liu, Andrew Malcolm

OE, Vol. 45, Issue 06, 066402, (June 2006) https://doi.org/10.1117/12.10.1117/1.2214717

KEYWORDS: Sensors, Computed tomography, Optical engineering, Inspection, Calibration, CT reconstruction, Reconstruction algorithms, Detection and tracking algorithms, Metals, X-rays

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SPIE Journal Paper | 1 January 2004

Channel wavelength selectable single/dual-wavelength erbium-doped fiber ring laser

Tong Liu, Yeng Chai Soh, Qijie Wang, Ying Zhang, Zhong Fang

OE, Vol. 43, Issue 01, (January 2004) https://doi.org/10.1117/12.10.1117/1.1627773

KEYWORDS: Fiber lasers, Optical amplifiers, Interferometers, Light sources, Optical filters, Mach-Zehnder interferometers, Laser applications, Electronic filtering, Tunable lasers, Wavelength division multiplexing

SPIE Journal Paper | 1 December 2003

All-fiber acousto-optical tunable filter with loop structure

Hao Li, Tong Liu, Changyun Wen, Yeng Chai Soh, Ying Zhang

OE, Vol. 42, Issue 12, (December 2003) https://doi.org/10.1117/12.10.1117/1.1625951

KEYWORDS: Acousto-optics, Acoustics, Tunable filters, Composites, Ferroelectric materials, Structured optical fibers, Metals, Optical filters, Lithium, Optical communications

Proceedings Article | 10 November 2003 Paper

Channel-wavelength-selectable multiwavelength ring laser using a cascaded fiber MZ interferometer and an EDFA

Tong Liu, Yeng Chai Soh, Qijie Wang, Ying Zhang, Zhongping Fang

Proceedings Volume 5181, (2003) https://doi.org/10.1117/12.505281

KEYWORDS: Optical filters, Fiber lasers, Optical amplifiers, Interferometers, Quantum cascade lasers, Mach-Zehnder interferometers, Laser applications, Fiber amplifiers, Bandpass filters, Manufacturing

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SPIE Journal Paper | 1 November 2003

All-fiber Fourier filter flat-top interleaver design with specified performance parameters

Qijie Wang, Tong Liu, Yeng Chai Soh, Ying Zhang

OE, Vol. 42, Issue 11, (November 2003) https://doi.org/10.1117/12.10.1117/1.1613279

KEYWORDS: Optical filters, Optical engineering, Dense wavelength division multiplexing, Fabry–Perot interferometers, Fiber couplers, Solids, Manufacturing, Fiber amplifiers, Optical amplifiers, Optical design

SPIE Journal Paper | 1 December 2002

Parameter optimization of an all-fiber Fourier filter flat-top interleaver

Tong Liu, Yeng Soh, Ying Zhang, Zhong Fang

OE, Vol. 41, Issue 12, (December 2002) https://doi.org/10.1117/12.10.1117/1.1518678

KEYWORDS: Optimization (mathematics), Dielectric filters, Signal attenuation, Mach-Zehnder interferometers, Dispersion, Optical filters, Wavelength division multiplexing, Optical engineering, Manufacturing, Optical communications

Proceedings Article | 30 October 2001 Paper

Dynamic phase-shift photoelasticity

Tong Liu, Chai Boay, Anand Asundi

Proceedings Volume 4596, (2001) https://doi.org/10.1117/12.447355

KEYWORDS: Digital filtering, Phase shifts, Photoelasticity, CCD cameras, Sensors, Optical filters, Image processing, Image filtering, Charge-coupled devices, Prisms

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SPIE Journal Paper | 1 August 2001

Full field automated photoelasticity using two-load-step method

Tong Liu, Anand Asundi, Chai Boay

OE, Vol. 40, Issue 08, (August 2001) https://doi.org/10.1117/12.10.1117/1.1386372

KEYWORDS: Photoelasticity, Phase shifts, Optical engineering, Phase shifting, Algorithm development, Mechanical engineering, Product engineering, Digital photography, Stress analysis, Image analysis

Proceedings Article | 13 June 2001 Paper

Photoelastic stress analysis of internal fixation techniques for femur shaft crack

Tong Liu, Gin Chai, Anand Asundi, Arumaaran Murugiah

Proceedings Volume 4317, (2001) https://doi.org/10.1117/12.429618

KEYWORDS: Photoelasticity, Stress analysis, Bone, Fringe analysis, Manufacturing, Design for manufacturability, Phase shifting, Digital photography, Tissues, Finite element methods

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SPIE Journal Paper | 1 October 2000

Novel full-field automated photoelastic analysis technique

Tong Liu, Chai Boay, Anand Asundi

OE, Vol. 39, Issue 10, (October 2000) https://doi.org/10.1117/12.10.1117/1.1290468

KEYWORDS: Phase shifts, Photoelastic analysis, Photoelasticity, Optical engineering, Shape analysis, Image compression, Polarizers, Phase shifting, Fringe analysis, Mechanical engineering

Showing 5 of 15 publications

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