Dr. Thomas J. Meitzler Profile

Dr. Thomas J. Meitzler

Independent Consultant

SPIE Involvement:

Author

Publications (45)

Proceedings Article | 3 May 2018 Presentation + Paper

Survivability: a hierarchical fuzzy logic layered model for threat management of unmanned ground vehicles

Shashank Kamthan, Harpreet Singh, Thomas Meitzler

Proceedings Volume 10643, 106430W (2018) https://doi.org/10.1117/12.2304990

KEYWORDS: Fuzzy logic, Unmanned ground vehicles, Unmanned vehicles, Systems modeling, Control systems, Distance measurement, Control systems design, Target detection

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Proceedings Article | 5 May 2017 Paper

UAVs: on development of fuzzy model for categorization of countermeasures during threat assessment

Shashank Kamthan, Harpreet Singh, Thomas Meitzler

Proceedings Volume 10195, 1019518 (2017) https://doi.org/10.1117/12.2275551

KEYWORDS: Control systems, Telecommunications, Data conversion, Fuzzy systems, Linear filtering, Mathematical modeling, Unmanned aerial vehicles, Fuzzy logic, Collision avoidance, Evolutionary algorithms, Unmanned vehicles, Artificial intelligence, Detection and tracking algorithms, Dynamical systems, Sensors

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Proceedings Article | 1 May 2010 Paper

On development of a VLSI circuit for impact source identification in ceramic plates

Arati Dixit, Harpreet Singh, Thomas Meitzler

Proceedings Volume 7705, 77050H (2010) https://doi.org/10.1117/12.851774

KEYWORDS: Field programmable gate arrays, Sensors, Very large scale integration, Ceramics, Fuzzy logic, Data acquisition, Signal processing, Nondestructive evaluation, Fuzzy systems, System identification

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Proceedings Article | 28 April 2010 Paper

Fuzzy logic for determination of crack severity in defense applications

Vijay Sharma, Harpreet Singh, Arati Dixit, Ahmed Mekki, Thomas Meitzler, Thomas Reynolds

Proceedings Volume 7709, 77090G (2010) https://doi.org/10.1117/12.853988

KEYWORDS: Fuzzy logic, Fuzzy systems, Defense and security, Data acquisition, Sensors, Ferroelectric materials, Mathematical modeling, Logic, Signal generators, Homeland security

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Proceedings Article | 14 May 2007 Paper

An infrared solution to a national priority NASA ice detection and measurement problem

Thomas Meitzler, Darryl Bryk, Euijung Sohn, Mary Bienkowski, Gregory Smith, Kimberly Lane, Rachel Jozwiak, Thomas Moss, Robert Speece, Charles Stevenson, Dennis Gregoris, James Ragusa

Proceedings Volume 6542, 65423I (2007) https://doi.org/10.1117/12.716915

KEYWORDS: Cameras, Calibration, Inspection, Infrared radiation, Dielectrics, Reflectivity, Infrared cameras, Infrared detectors, Imaging systems, Sensors

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Proceedings Article | 17 May 2006 Paper

Video image fusion process using fuzzy technique

Rahul Ranjan, Harpreet Singh, Thomas Meitzler, E. Sohn, Kuldip Singh

Proceedings Volume 6235, 62350Y (2006) https://doi.org/10.1117/12.667260

KEYWORDS: Image fusion, Video, Image processing, Fuzzy logic, Video processing, Video surveillance, Cameras, Image quality, Infrared cameras, Homeland security

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Proceedings Article | 11 August 2004 Paper

A video-based system and method for improving aircraft security

Samuel Ebenstein, Gregory Smith, Nicholas Zorka, Yelena Rodin, Thomas Meitzler

Proceedings Volume 5424, (2004) https://doi.org/10.1117/12.541399

KEYWORDS: Cameras, Imaging systems, Image processing, Databases, Video, Image enhancement, Infrared cameras, Control systems, Information security, Visualization

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Proceedings Article | 22 September 2003 Paper

Comparison of 2D and 3D displays and sensor fusion for threat detection, surveillance and telepresence

Thomas Meitzler, David Bednarz, Kimberly Lane, Euijung Sohn, Darryl Bryk, Elena Bankowski, R. Jozwiak, Robert Andrews

Proceedings Volume 5071, (2003) https://doi.org/10.1117/12.486969

KEYWORDS: 3D displays, 3D image processing, Mirrors, Sensor fusion, Surveillance, Infrared sensors, Image fusion, LCDs, Computing systems, Infrared imaging

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Proceedings Article | 11 September 2003 Paper

Fuzzy-logic-based sensor fusion for mine and concealed weapon detection

Thomas Meitzler, Darryl Bryk, Euijung Sohn, Kimberly Lane, Jyoti Raj, Harpreet Singh

Proceedings Volume 5089, (2003) https://doi.org/10.1117/12.486955

KEYWORDS: Image fusion, Land mines, Sensors, Fuzzy logic, Weapons, Infrared imaging, Wavelets, Sensor fusion, Infrared radiation, Thermography

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SPIE Journal Paper | 1 June 2003

Use of a photosimulation laboratory for estimating vehicle detection probability

Thomas Meitzler, David Bednarz, Darryl Bryk, Kimberly Lane, Euijung Sohn

OE, Vol. 42, Issue 06, (June 2003) https://doi.org/10.1117/12.10.1117/1.1572888

KEYWORDS: Data modeling, Fuzzy logic, Camouflage, Visualization, Light sources and illumination, Optical engineering, Calibration, Digital cameras, Oceanography, Reconnaissance

Proceedings Article | 16 July 2002 Paper

Fuzzy-logic-based sensor fusion of images

Thomas Meitzler, David Bednarz, Eui Sohn, Kimberly Lane, Darryl Bryk, Elena Bankowski, Gulsheen Kaur, Harpreet Singh, Samuel Ebenstein, Gregory Smith, Yelena Rodin, James Rankin

Proceedings Volume 4713, (2002) https://doi.org/10.1117/12.474420

KEYWORDS: Image fusion, Sensors, Fuzzy logic, Infrared imaging, Visualization, Fiber optic gyroscopes, Sensor fusion, Image sensors, Image filtering, Infrared radiation

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SPIE Journal Paper | 1 September 2001

Predicting search time in visually cluttered scenes using the fuzzy logic approach

Thomas Meitzler, Eui Sohn, Harpreet Singh, Abdelakrim Elgarhi, Deok Nam

OE, Vol. 40, Issue 09, (September 2001) https://doi.org/10.1117/12.10.1117/1.1389866

KEYWORDS: Fuzzy logic, Data modeling, Visualization, Electro optical modeling, Wavelets, Visual process modeling, Systems modeling, Target detection, Wavelet transforms, Target acquisition

SPIE Journal Paper | 1 September 2001 Open Access

Advances in Target Acquisition Modeling II

Alexander Toet, Thomas Meitzler

OE, Vol. 40, Issue 09, (September 2001) https://doi.org/10.1117/12.10.1117/1.1410760

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Proceedings Article | 23 June 2000 Paper

Noise and contrast comparison of visual and infrared images of hazards as seen inside an automobile

Thomas Meitzler, Darryl Bryk, Eui Sohn, Kimberly Lane, David Bednarz, Daniel Jusela, Samuel Ebenstein, Gregory Smith, Yelena Rodin, James Rankin, Amer Samman

Proceedings Volume 4023, (2000) https://doi.org/10.1117/12.389337

KEYWORDS: Roads, Visualization, Infrared imaging, Video, Sensors, Fiber optic gyroscopes, Infrared radiation, Enhanced vision, Infrared sensors, Error analysis

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Proceedings Article | 14 July 1999 Paper

Predicting search time in visual scenes using the fuzzy logic approach

Thomas Meitzler, Eui Sohn, Harpreet Singh, Abdelakrim Elgarhi

Proceedings Volume 3699, (1999) https://doi.org/10.1117/12.352958

KEYWORDS: Fuzzy logic, Data modeling, Visualization, Wavelets, Systems modeling, Visual process modeling, Wavelet transforms, Target detection, Target acquisition, Fuzzy systems

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Proceedings Article | 24 May 1999 Paper

Design and perception testing of a novel 3D autostereoscopic holographic display system

Grace Bochenek, Thomas Meitzler, Paul Muench, Kimberly Lane

Proceedings Volume 3639, (1999) https://doi.org/10.1117/12.349370

KEYWORDS: 3D displays, Visualization, Holography, Holographic optical elements, 3D acquisition, Projection systems, 3D visualizations, 3D modeling, Displays, Computer aided design

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Proceedings Article | 7 July 1998 Paper

Perception test of infrared images of soldiers in camouflaged uniforms

Thomas Meitzler, R. Darin Ellis, Eui Sohn, Darryl Bryk, Lisa Hepfinger, Kathy Rock, H. Singh

Proceedings Volume 3375, (1998) https://doi.org/10.1117/12.327142

KEYWORDS: Sensors, Palladium, Data modeling, Visualization, Infrared imaging, Fuzzy logic, Target detection, Infrared radiation, Visual process modeling, Thermography

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SPIE Journal Paper | 1 July 1998

Computing the probability of target detection in dynamic visual scenes containing clutter using fuzzy logic approach

Thomas Meitzler, Regina Kistner, William Pibil, Eui Sohn, Darryl Bryk, David Bednarz

OE, Vol. 37, Issue 07, (July 1998) https://doi.org/10.1117/12.10.1117/1.601847

KEYWORDS: Target detection, Probability theory, Data modeling, Fuzzy logic, Visualization, Target acquisition, Detection and tracking algorithms, Statistical analysis, Optical engineering, Motion models

SPIE Journal Paper | 1 July 1998 Open Access

Guest Editorial: Special Section on Advances in Target Acquisition Modeling

Thomas Meitzler, Grant Gerhart, Harpreet Singh

OE, Vol. 37, Issue 07, (July 1998) https://doi.org/10.1117/12.10.1117/1.601717

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SPIE Journal Paper | 1 January 1998

Predicting the probability of target detection in static infrared and visual scenes using the fuzzy logic approach

Thomas Meitzler, Eui Sohn, Grant Gerhart, Harpreet Singh, Labib Arefeh

OE, Vol. 37, Issue 01, (January 1998) https://doi.org/10.1117/12.10.1117/1.601849

KEYWORDS: Fuzzy logic, Palladium, Visualization, Target detection, Visual process modeling, Infrared imaging, Target acquisition, Systems modeling, Data modeling, Electro optical modeling

Proceedings Article | 20 June 1997 Paper

Background characterization and visualization based on visual neurophysiology

Gary Witus, Paul Gottschalk, Mitchell Cohen, Grant Gerhart, Robert Karlsen, Thomas Meitzler, Richard Goetz, Eui Sohn, Darryl Bryk

Proceedings Volume 3062, (1997) https://doi.org/10.1117/12.276679

KEYWORDS: Visualization, Visual process modeling, Linear filtering, Bandpass filters, Detection and tracking algorithms, Modulation, Spatial filters, Image filtering, Visual analytics, Image processing

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Proceedings Article | 16 June 1997 Paper

Computing the probability of target detection in infrared and visual scenes using the fuzzy logic approach

Thomas Meitzler, Harpreet Singh, Labib Arefeh, Grant Gerhart, Eui Sohn

Proceedings Volume 3063, (1997) https://doi.org/10.1117/12.276071

KEYWORDS: Fuzzy logic, Palladium, Visualization, Target detection, Data modeling, Visual process modeling, Systems modeling, Infrared radiation, Target acquisition, Electro optical modeling

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SPIE Journal Paper | 1 December 1996

Fuzzy logic approach for computing the probability of target detection in cluttered scenes

Thomas Meitzler, Labib Arafeh, Harpreet Singh, Grant Gerhart

OE, Vol. 35, Issue 12, (December 1996) https://doi.org/10.1117/12.10.1117/1.601081

KEYWORDS: Fuzzy logic, Electro optical modeling, Data modeling, Target detection, Systems modeling, Visual process modeling, Target acquisition, Visualization, Fuzzy systems, Optical engineering

SPIE Journal Paper | 1 October 1996

Target acquisition methodology for visual and infrared imaging sensors

Grant Gerhart, Edwina Bednarz, Thomas Meitzler, Eui Sohn, Robert Karlsen

OE, Vol. 35, Issue 10, (October 1996) https://doi.org/10.1117/12.10.1117/1.600953

KEYWORDS: Target detection, Visual process modeling, Target acquisition, Data modeling, Sensors, Visualization, Performance modeling, Sensor performance, Electro optical modeling, Signal to noise ratio

SPIE Journal Paper | 1 October 1996

Wavelet transforms of cluttered images and their application to computing the probability of detection

Thomas Meitzler, Robert Karlsen, Grant Gerhart, Eui Sohn, Harpreet Singh

OE, Vol. 35, Issue 10, (October 1996) https://doi.org/10.1117/12.10.1117/1.600987

KEYWORDS: Wavelet transforms, Wavelets, Infrared imaging, Visualization, Target detection, Detection and tracking algorithms, Infrared radiation, Image processing, Target acquisition, Optical engineering

Proceedings Article | 10 June 1996 Paper

Wavelet transforms of cluttered images and their application to computing the probability of detection

Thomas Meitzler, Robert Karlsen, Grant Gerhart, Eui Sohn, Harpreet Singh

Proceedings Volume 2743, (1996) https://doi.org/10.1117/12.241974

KEYWORDS: Wavelets, Wavelet transforms, Palladium, Infrared imaging, Visualization, Detection and tracking algorithms, Infrared radiation, Image processing, Target detection, Target acquisition

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Proceedings Article | 10 June 1996 Paper

Validation status of the TARDEC visual model (TVM)

Grant Gerhart, Richard Goetz, Thomas Meitzler, Robert Karlsen

Proceedings Volume 2743, (1996) https://doi.org/10.1117/12.241966

KEYWORDS: Visual process modeling, Visualization, Target detection, Linear filtering, RGB color model, Roentgenium, Target acquisition, Calibration, Spatial frequencies, Performance modeling

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Proceedings Article | 22 March 1996 Paper

Wavelet-based ground vehicle recognition using acoustic signals

Howard Choe, Robert Karlsen, Grant Gerhart, Thomas Meitzler

Proceedings Volume 2762, (1996) https://doi.org/10.1117/12.236015

KEYWORDS: Wavelets, Discrete wavelet transforms, Acoustics, Digital signal processing, Detection and tracking algorithms, Feature extraction, Continuous wavelet transforms, Algorithm development, Databases, Time-frequency analysis

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We present, in this paper, a wavelet-based acoustic signal analysis to remotely recognize military vehicles using their sound intercepted by acoustic sensors. Since expedited signal recognition is imperative in many military and industrial situations, we developed an algorithm that provides an automated, fast signal recognition once implemented in a real-time hardware system. This algorithm consists of wavelet preprocessing, feature extraction and compact signal representation, and a simple but effective statistical pattern matching. The current status of the algorithm does not require any training. The training is replaced by human selection of reference signals (e.g., squeak or engine exhaust sound) distinctive to each individual vehicle based on human perception. This allows a fast archiving of any new vehicle type in the database once the signal is collected. The wavelet preprocessing provides time-frequency multiresolution analysis using discrete wavelet transform (DWT). Within each resolution level, feature vectors are generated from statistical parameters and energy content of the wavelet coefficients. After applying our algorithm on the intercepted acoustic signals, the resultant feature vectors are compared with the reference vehicle feature vectors in the database using statistical pattern matching to determine the type of vehicle from where the signal originated. Certainly, statistical pattern matching can be replaced by an artificial neural network (ANN); however, the ANN would require training data sets and time to train the net. Unfortunately, this is not always possible for many real world situations, especially collecting data sets from unfriendly ground vehicles to train the ANN. Our methodology using wavelet preprocessing and statistical pattern matching provides robust acoustic signal recognition. We also present an example of vehicle recognition using acoustic signals collected from two different military ground vehicles. In this paper, we will not present the mathematics involved in this research. Instead, the focus of this paper is on the application of various techniques used to achieve our goal of successful recognition.

Proceedings Article | 22 March 1996 Paper

Comparative study of wavelet methods in ground vehicle signature analysis

Robert Karlsen, Thomas Meitzler, Grant Gerhart, David Gorsich, Howard Choe

Proceedings Volume 2762, (1996) https://doi.org/10.1117/12.236006

KEYWORDS: Wavelets, Wavelet transforms, Visualization, Distortion, RGB color model, Fast wavelet transforms, Linear filtering, Acoustics, Visual system, Image compression

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Proceedings Article | 6 June 1995 Paper

Computational vision models of early vision for target acquisition

Grant Gerhart, Thomas Meitzler, Eui Sohn

Proceedings Volume 2426, (1995) https://doi.org/10.1117/12.211180

KEYWORDS: Visual process modeling, Spatial frequencies, Linear filtering, Target acquisition, Image filtering, Signal to noise ratio, Computer vision technology, Modulation, Visualization, Human vision and color perception

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Proceedings Article | 22 May 1995 Paper

Simulation and comparison of infrared sensors for automotive applications

Thomas Meitzler, Eui Sohn, Robert Karlsen, Grant Gerhart, Sridhar Lakshmanan

Proceedings Volume 2470, (1995) https://doi.org/10.1117/12.210065

KEYWORDS: Sensors, Infrared imaging, Infrared sensors, Thermography, Signal to noise ratio, Target detection, Visual process modeling, Infrared radiation, Imaging systems, Staring arrays

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Proceedings Article | 22 May 1995 Paper

Early vision model for target detection

Grant Gerhart, Thomas Meitzler, Eui Sohn, Gary Witus, George Lindquist, J. Richard Freeling

Proceedings Volume 2470, (1995) https://doi.org/10.1117/12.210049

KEYWORDS: Visual process modeling, Visualization, Target acquisition, Target detection, Calibration, Spatial frequencies, Image filtering, Bandpass filters, Signal to noise ratio, Image analysis

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Proceedings Article | 6 April 1995 Paper

Time-varying acoustic source identification using fusion of hidden Markov model and wavelet neural network

Howard Choe, Robert Karlsen, Thomas Meitzler, Grant Gerhart

Proceedings Volume 2491, (1995) https://doi.org/10.1117/12.205419

KEYWORDS: Acoustics, Wavelets, Neural networks, Wavelet transforms, Neurons, Signal processing, Feature extraction, Interference (communication), Autoregressive models, Fourier transforms

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Proceedings Article | 6 April 1995 Paper

Wavelet analysis of ground vehicle acoustic signatures

Robert Karlsen, Grant Gerhart, Thomas Meitzler, Richard Goetz, Howard Choe

Proceedings Volume 2491, (1995) https://doi.org/10.1117/12.205418

KEYWORDS: Wavelets, Acoustics, Wavelet transforms, Linear filtering, Fast wavelet transforms, Interference (communication), Fourier transforms, Time-frequency analysis, Lithium, Modulation

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Proceedings Article | 8 July 1994 Paper

Personal computer version of the TACOM thermal image model

Peter Seegers, Mitchell Cohen, Thomas Cook, Thomas Meitzler

Proceedings Volume 2224, (1994) https://doi.org/10.1117/12.180070

KEYWORDS: Sensors, Point spread functions, Thermography, Atmospheric optics, Thermal modeling, Image sensors, Interfaces, C++, RGB color model, Atmospheric modeling

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Proceedings Article | 8 July 1994 Paper

Comparison of the performance of 3-5 and 8-12 micron infrared cameras

Thomas Meitzler, Grant Gerhart, Eui Sohn, Paul Collins

Proceedings Volume 2224, (1994) https://doi.org/10.1117/12.180078

KEYWORDS: Sensors, Atmospheric modeling, Staring arrays, Medium wave, Thermography, Thermal modeling, Cameras, Infrared cameras, Transmittance, Fiber optic gyroscopes

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Proceedings Article | 15 June 1994 Paper

Introduction of target, atmosphere, background, and sensor-specific (TABSS) delta T metric: analysis, comparison, and applications

Howard Choe, Peter Ahn, Thomas Meitzler, Eui Sohn, Grant Gerhart

Proceedings Volume 2223, (1994) https://doi.org/10.1117/12.177928

KEYWORDS: Thermal modeling, Performance modeling, Atmospheric sensing, Sensors, Sensor performance, Target detection, Target recognition, Atmospheric modeling, Thermography, Imaging systems

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Proceedings Article | 31 August 1993 Paper

Evaluation of deltaT using statistical characteristics of the target and background

Grant Gerhart, Thomas Meitzler, Eui Sohn, Howard Choe

Proceedings Volume 1969, (1993) https://doi.org/10.1117/12.154736

KEYWORDS: Target detection, Spatial frequencies, Visual process modeling, Sensors, Visualization, Thermography, Statistical analysis, Optical sensors, Eye models, Thermal modeling

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Proceedings Article | 13 August 1993 Paper

Evaluation of T using statistical characteristics of the target and background

Grant Gerhart, Thomas Meitzler, Eui Sohn, Howard Choe

Proceedings Volume 1967, (1993) https://doi.org/10.1117/12.151066

KEYWORDS: Target detection, Spatial frequencies, Visual process modeling, Sensors, Image sensors, Visualization, Thermography, Statistical analysis, Optical sensors, Eye models

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Proceedings Article | 13 August 1993 Paper

Calculation of background clutter in infrared imagery: a semiempirical study

Thomas Meitzler, William Jackson, Eui Sohn, David Bednarz

Proceedings Volume 1967, (1993) https://doi.org/10.1117/12.151079

KEYWORDS: Infrared radiation, Infrared imaging, Sensors, Statistical analysis, Atmospheric modeling, Turbulence, Computer simulations, Infrared sensors, Signal processing, Target detection

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Proceedings Article | 13 August 1993 Paper

Background and target randomization and root mean square (RMS) background matching using a new deltaT metric definition

Howard Choe, Thomas Meitzler, Grant Gerhart

Proceedings Volume 1967, (1993) https://doi.org/10.1117/12.151080

KEYWORDS: Target detection, Algorithm development, Computer simulations, Sensors, Detection and tracking algorithms, Silicon, Electro optical modeling, Imaging systems, Information operations, Electroluminescence

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Proceedings Article | 21 September 1992 Paper

Performance assessment methodology for ground vehicle infrared and visual signature countermeasures

Grant Gerhart, Thomas Meitzler

Proceedings Volume 1687, (1992) https://doi.org/10.1117/12.137860

KEYWORDS: Infrared signatures, Visualization, Target acquisition, Data modeling, Modulation transfer functions, Target detection, Sensors, Visual process modeling, Infrared radiation, Curium

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Proceedings Article | 21 September 1992 Paper

Statistical measures of sensor performance based on the correlation of background clutter

Thomas Meitzler, William Jackson, David Bednarz

Proceedings Volume 1687, (1992) https://doi.org/10.1117/12.137867

KEYWORDS: Data modeling, Sensors, Sensor performance, Statistical analysis, Statistical modeling, Infrared sensors, Humidity, Data conversion, Visualization, Atmospheric modeling

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Proceedings Article | 16 September 1992 Paper

Spatial aliasing effects in ground vehicle IR imagery

Thomas Meitzler, Grant Gerhart, Thomas Cook, J. Richard Freeling

Proceedings Volume 1689, (1992) https://doi.org/10.1117/12.137954

KEYWORDS: Target detection, Sensors, Infrared imaging, Imaging systems, Signal detection, Thermography, Thermal modeling, Curium, Interference (communication), Electronic filtering

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Proceedings Article | 1 July 1991 Paper

Variable emissivity plates under a three-dimensional sky background

Thomas Meitzler, Teresa Gonda, Jack Jones, William Reynolds

Proceedings Volume 1486, (1991) https://doi.org/10.1117/12.45782

KEYWORDS: Prisms, Atmospheric modeling, Atmospheric propagation, Scattering, Thermal modeling, Atmospheric particles, Solar radiation models, Infrared radiation, Electro optical modeling, Atmospheric physics

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Showing 5 of 45 publications

Conference Committee Involvement (3)

Enhanced and Synthetic Vision 2005

28 March 2005 | Orlando, Florida, United States

Enhanced and Synthetic Vision 2004

12 April 2004 | Orlando, Florida, United States

Enhanced and Synthetic Vision 2003

21 April 2003 | Orlando, Florida, United States

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