Prof. Robert L. Thomas Profile

Prof. Robert L. Thomas

Director

SPIE Involvement:

Author

Publications (24)

Proceedings Article | 17 May 2005 Paper

Sonic infrared imaging NDE

Xiaoyan Han, Jianping Lu, Md. Islam, Wei Li, Zhi Zeng, L. Favro, G. Newaz, R. Thomas

Proceedings Volume 5765, (2005) https://doi.org/10.1117/12.600118

KEYWORDS: Infrared imaging, Ultrasonics, Nondestructive evaluation, Infrared cameras, Defect detection, Infrared radiation, Ceramics, Cameras, Composites, Thermography

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Proceedings Article | 24 October 2001 Paper

Thermosonic imaging of cracks: applications to teeth

Xiaoyan Han, Lawrence Favro, Robert Thomas

Proceedings Volume 4434, (2001) https://doi.org/10.1117/12.446659

KEYWORDS: Teeth, Infrared imaging, Infrared cameras, Cameras, Nondestructive evaluation, Ultrasonics, Ultrasonography, Wave propagation, Thermography, Temperature metrology

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Proceedings Article | 15 June 2001 Paper

Detecting cracks in teeth using ultrasonic excitation and infrared imaging

Xiaoyan Han, Lawrence Favro, Robert Thomas

Proceedings Volume 4256, (2001) https://doi.org/10.1117/12.429316

KEYWORDS: Teeth, Infrared imaging, Ultrasonics, Infrared cameras, Cameras, Ultrasonography, Transducers, Aerospace engineering, Nondestructive evaluation, Diffusion

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Proceedings Article | 23 March 2001 Paper

Progress in thermosonic crack detection

Lawrence Favro, Xiaoyan Han, Zhong Ouyang, Robert Thomas

Proceedings Volume 4360, (2001) https://doi.org/10.1117/12.421046

KEYWORDS: Infrared imaging, Infrared cameras, Ultrasonics, Inspection, Photography, Thermography, Aerospace engineering, Infrared radiation, Cameras, Manufacturing

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Proceedings Article | 30 March 2000 Paper

IR imaging of cracks excited by an ultrasonic pulse

Lawrence Favro, Xiaoyan Han, Zhong Ouyang, Gang Sun, Hua Sui, Robert Thomas

Proceedings Volume 4020, (2000) https://doi.org/10.1117/12.381549

KEYWORDS: Infrared imaging, Ultrasonics, Inspection, Cameras, Metals, Infrared radiation, Composites, Photography, Ceramics, Manufacturing

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Proceedings Article | 19 March 1999 Paper

Fast infrared imaging of static and dynamic crush tests of composite tubes

Xiaoyan Han, Lawrence Favro, Robert Thomas, M. Chadwick, A. Caliskan, N. Griffith

Proceedings Volume 3700, (1999) https://doi.org/10.1117/12.342332

KEYWORDS: Infrared imaging, Composites, Thermography, Infrared cameras, Cameras, Video, Absorption, Manufacturing, Nondestructive evaluation, Glasses

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Proceedings Article | 28 January 1999 Paper

State of the art of thermal wave imaging for NDE of aging aircraft

Lawrence Favro, Robert Thomas, Xiaoyan Han

Proceedings Volume 3586, (1999) https://doi.org/10.1117/12.339876

KEYWORDS: Thermography, Corrosion, Composites, Nondestructive evaluation, Aluminum, Skin, Inspection, Aircraft structures, Photography, Infrared cameras

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Proceedings Article | 31 March 1998 Paper

Thermal wave imaging of defects in fiber-reinforced composites

Lawrence Favro, Xiaoyan Han, Robert Thomas

Proceedings Volume 3397, (1998) https://doi.org/10.1117/12.305043

KEYWORDS: Composites, Thermography, Boron, Infrared cameras, Aluminum, Nondestructive evaluation, Wave propagation, Infrared imaging, Cameras, Inspection

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Proceedings Article | 26 March 1998 Paper

Fast infrared measurements of the thermal diffusivities of anisotropic materials

Lawrence Favro, Zhong Ouyang, Li Wang, Feng Zhang, Ling Zhang, Robert Thomas

Proceedings Volume 3361, (1998) https://doi.org/10.1117/12.304734

KEYWORDS: Infrared radiation, Lead, Infrared imaging, Thermography, Composites, Polymers, Manufacturing, Fiber reinforced polymers, Solids, Infrared materials

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Proceedings Article | 4 April 1997 Paper

Infrared video lock-in imaging at high frequencies

Lawrence Favro, Zhong Ouyang, Li Wang, Xun Wang, Feng Zhang, Robert Thomas

Proceedings Volume 3056, (1997) https://doi.org/10.1117/12.271642

KEYWORDS: Cameras, Infrared imaging, Video, Infrared cameras, Infrared radiation, Copper, Thermography, Imaging systems, Modulation, Staring arrays

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Proceedings Article | 15 November 1996 Paper

Thermal-wave imaging for NDE of composites and coatings

Lawrence Favro, Pao-Kuang Kuo, Robert Thomas

Proceedings Volume 2944, (1996) https://doi.org/10.1117/12.259062

KEYWORDS: Composites, Thermography, Infrared imaging, Nondestructive evaluation, Aluminum, Infrared cameras, Cameras, Wave propagation, Skin, Defect detection

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Proceedings Article | 14 November 1996 Paper

Measuring corrosion thinning by thermal-wave imaging

Lawrence Favro, Xiaoyan Han, Tasdiq Ahmed, Pao-Kuang Kuo, Robert Thomas

Proceedings Volume 2945, (1996) https://doi.org/10.1117/12.259112

KEYWORDS: Corrosion, Skin, Thermography, Profilometers, Infrared imaging, Ultrasonics, Calibration, Image processing, Infrared cameras, Cameras

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Proceedings Article | 15 March 1996 Paper

Measuring defect depths by thermal-wave imaging

Lawrence Favro, Xiaoyan Han, Pao-Kuang Kuo, Robert Thomas

Proceedings Volume 2766, (1996) https://doi.org/10.1117/12.235380

KEYWORDS: Reflection, Manufacturing, Solids, Physics, Thermography, Nondestructive evaluation, 3D image processing, Americium, Diffusion, Reliability

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Proceedings Article | 14 July 1995 Paper

Absorption measurement of thin films by using photothermal techniques: the influence of thermal properties

Zhouling Wu, Pao-Kuang Kuo, Robert Thomas, Zhengxiu Fan

Proceedings Volume 2428, (1995) https://doi.org/10.1117/12.213742

KEYWORDS: Absorption, Thin films, Calibration, Thin film coatings, Optics manufacturing, Physics, Multilayers, Thin film manufacturing, Astronomy, Astronomical imaging

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Proceedings Article | 14 July 1995 Paper

Growth and characterization of laser-ablated boron nitride thin films

Zhouling Wu, Roger Pryor, K. Padmanabhan, S. Villanueva, Robert Thomas

Proceedings Volume 2428, (1995) https://doi.org/10.1117/12.213716

KEYWORDS: Silicon, Boron, Thin films, FT-IR spectroscopy, Laser ablation, Modulation, Crystals, Chemical species, Ions, Laser development

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Proceedings Article | 28 March 1995 Paper

Imaging the early time behavior of reflected thermal wave pulses

Lawrence Favro, Xiaoyan Han, Pao-Kuang Kuo, Robert Thomas

Proceedings Volume 2473, (1995) https://doi.org/10.1117/12.204850

KEYWORDS: Reflection, Infrared cameras, Physics, Thermography, Nondestructive evaluation, Analytical research, 3D image processing, Infrared imaging, Infrared radiation, Video

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Proceedings Article | 28 March 1995 Paper

Thermal wave nondestructive testing (NDT) of ceramic coatings

Steven Shepard, Lawrence Favro, Robert Thomas

Proceedings Volume 2473, (1995) https://doi.org/10.1117/12.204854

KEYWORDS: Ceramics, Nondestructive evaluation, Thermography, Reflection, Interfaces, Data acquisition, Composites, Precision measurement, Metals, Manufacturing

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Proceedings Article | 21 March 1994 Paper

Thermal-wave imaging of composites and polymers

Lawrence Favro, Pao-Kuang Kuo, Robert Thomas

Proceedings Volume 2245, (1994) https://doi.org/10.1117/12.171158

KEYWORDS: Polymers, Composites, Thermography, Wave propagation, Ceramics, Ultrasonics, Wave plates, Manufacturing, Fiber reinforced polymers, Ultrasonography

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Proceedings Article | 3 December 1993 Paper

Thermal-wave imaging of corrosion and disbonds in aircraft structures

Lawrence Favro, Pao-Kuang Kuo, Robert Thomas, Tasdiq Ahmed, Y. Wang

Proceedings Volume 2001, (1993) https://doi.org/10.1117/12.163834

KEYWORDS: Corrosion, Thermography, Infrared cameras, Imaging systems, Inspection, Nondestructive evaluation, Infrared imaging, Cameras, Aircraft structures, Wave propagation

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Proceedings Article | 6 April 1993 Paper

Inversion of pulse-echo thermalwave images

Lawrence Favro, D. Crowther, Pao-Kuang Kuo, Robert Thomas

Proceedings Volume 1933, (1993) https://doi.org/10.1117/12.141960

KEYWORDS: Multiple scattering, Image processing, Composites, Anisotropy, Fourier transforms, Manufacturing, Thermal modeling, Convolution, Interference (communication), Reflection

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Proceedings Article | 6 April 1993 Paper

Comparison of scanning and focal-plane-array cameras for IR thermal wave imaging

Steven Shepard, Tasdiq Ahmed, Lawrence Favro, Robert Thomas, Pao-Kuang Kuo

Proceedings Volume 1933, (1993) https://doi.org/10.1117/12.141961

KEYWORDS: Cameras, Thermography, Staring arrays, Imaging systems, Mercury cadmium telluride, Infrared cameras, Infrared imaging, Signal to noise ratio, Reflection, Corrosion

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Proceedings Article | 1 April 1992 Paper

Inversion of pulsed thermal-wave images for defect sizing and shape recovery

Lawrence Favro, D. Crowther, Pao-Kuang Kuo, Robert Thomas

Proceedings Volume 1682, (1992) https://doi.org/10.1117/12.58534

KEYWORDS: Image processing, Diffusion, Fourier transforms, Scattering, Data modeling, Algorithm development, Image resolution, Corrosion, Convolution, Linear filtering

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Proceedings Article | 1 March 1991 Paper

Infrared thermal-wave studies of coatings and composites

Lawrence Favro, Tasdiq Ahmed, D. Crowther, Huijia Jin, Pao-Kuang Kuo, Robert Thomas, Xun Wang

Proceedings Volume 1467, (1991) https://doi.org/10.1117/12.46446

KEYWORDS: Composites, Image processing, Fiber reinforced polymers, Thermography, Infrared radiation, Video, Cameras, Tomography, Imaging systems, Video processing

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Proceedings Article | 1 March 1990 Paper

Noise suppression in IR thermal-wave video images by real-time processing in synchronism with active stimulation of the target

Lawrence Favro, Tasdiq Ahmed, Huijia Jin, Pao-Kuang Kuo, Robert Thomas

Proceedings Volume 1313, (1990) https://doi.org/10.1117/12.21952

KEYWORDS: Image processing, Video, Cameras, Signal processing, Video processing, Infrared imaging, Signal to noise ratio, Thermography, Imaging systems, Copper

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Showing 5 of 24 publications

Conference Committee Involvement (4)

Photons Plus Ultrasound Imaging and Sensing 2006: The Seventh Conference on Biomedical Thermoacoustics, Optoacoustics, and Acousto-optics

22 January 2006 | San Jose, California, United States

Photons Plus Ultrasound: Imaging and Sensing

23 January 2005 | San Jose, CA, United States

Photons Plus Ultrasound: Imaging and Sensing

25 January 2004 | San Jose, CA, United States

Biomedical Optoacoustics IV

26 January 2003 | San Jose, CA, United States

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