Dr. Tien-Hsin Chao Profile

Dr. Tien-Hsin Chao

Principal Member of Technical Staff at Jet Propulsion Lab

SPIE Involvement:

Author | Editor

Publications (94)

Proceedings Article | 1 May 2017 Presentation + Paper

Presentation + Paper

Intelligent multi-spectral IR image segmentation

Thomas Lu, Andrew Luong, Stephen Heim, Maharshi Patel, Kang Chen, Tien-Hsin Chao, Edward Chow, Gilbert Torres

Proceedings Volume 10203, 1020303 (2017) https://doi.org/10.1117/12.2262730

KEYWORDS: Image segmentation, Neural networks, Infrared imaging, Shortwaves, Machine vision, Computer vision technology, Image understanding, Short wave infrared radiation, Thermography, Reflectivity, Medium wave, Wavelets, Image filtering, Video, Image processing algorithms and systems, Computing systems, Detection and tracking algorithms

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Proceedings Article | 20 April 2016 Paper

Paper

Cross-correlation and image alignment for multi-band IR sensors

Thomas Lu, Tien-Hsin Chao, Kang (Frank) Chen, Andrew Luong, Mallory Dewees, Xinyi Yan, Edward Chow, Gilbert Torres

Proceedings Volume 9845, 984505 (2016) https://doi.org/10.1117/12.2224694

KEYWORDS: Image filtering, Medium wave, Video, Image enhancement

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Proceedings Article | 20 April 2016 Paper

Paper

Chip scale broadly tunable laser for laser spectrometer

Tien-Hsin Chao, Thomas Lu, Scott Davis, Michael Anderson

Proceedings Volume 9845, 98450M (2016) https://doi.org/10.1117/12.2229893

KEYWORDS: Waveguides, Liquid crystals, Tunable lasers, Semiconductor lasers, Laser spectroscopy, Spectroscopy, Cladding, Actuators, Electro optics, Absorption

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Proceedings Article | 20 April 2015 Paper

Paper

Adaptive threshold and error-correction coding for robust data retrieval in optical media

Thomas Lu, Colin Costello, Matthew Ginley-Hidinger, Tien-Hsin Chao

Proceedings Volume 9477, 94770O (2015) https://doi.org/10.1117/12.2180402

KEYWORDS: Binary data, Neural networks, Telecommunications, Optical communications, Thermography, Remote sensing, Data storage, Distortion, Light sources, Signal to noise ratio

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Proceedings Article | 20 April 2015 Paper

Paper

Holographic content addressable storage

Tien-Hsin Chao, Thomas Lu, George Reyes

Proceedings Volume 9477, 94770S (2015) https://doi.org/10.1117/12.2182224

KEYWORDS: Digital micromirror devices, Holography, Crystals, Spatial light modulators, CMOS sensors, Laser crystals, Digital holography, Multiplexing, Holographic data storage systems, Mirrors

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Proceedings Article | 5 May 2014 Paper

Paper

Addressing channel noise and bit rate in a multi-channel free space optical communication system

Brian Walker, Thomas Lu, Colin Costello, George Reyes, Tien-Hsin Chao

Proceedings Volume 9094, 90940E (2014) https://doi.org/10.1117/12.2054352

KEYWORDS: Cameras, Free space optical communications, Fourier transforms, Mathematical modeling, Optical alignment, Receivers, Binary data, Telecommunications, Spatial light modulators, Data modeling

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Proceedings Article | 5 May 2014 Paper

Paper

High-speed optical processing using digital micromirror device

Tien-Hsin Chao, Thomas Lu, Brian Walker, George Reyes

Proceedings Volume 9094, 909402 (2014) https://doi.org/10.1117/12.2054349

KEYWORDS: Digital micromirror devices, Spatial light modulators, Computer generated holography, Optical signal processing, Fourier transforms, Optical filters, Spatial filters, Modulation, Optical design, Defense and security

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Proceedings Article | 5 May 2014 Paper

Paper

GPU processing for parallel image processing and real-time object recognition

Kevin Vincent, Damien Nguyen, Brian Walker, Thomas Lu, Tien-Hsin Chao

Proceedings Volume 9094, 909407 (2014) https://doi.org/10.1117/12.2054353

KEYWORDS: Automatic target recognition, Image processing, Principal component analysis, Detection and tracking algorithms, Computing systems, Image filtering, Graphics processing units, Computer programming, Matrices, Matrix multiplication

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Proceedings Article | 30 September 2013 Paper

Paper

Small object detection via fast discrete Curvelet transform

Hector Valdez, Thomas Lu, Tien-Hsin Chao

Proceedings Volume 8857, 885703 (2013) https://doi.org/10.1117/12.2025335

KEYWORDS: Target detection, Image processing, Automatic target recognition, Fourier transforms, Detection and tracking algorithms, Chemical species, Image filtering, Visualization, Databases, Video

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Proceedings Article | 21 May 2013 Paper

Paper

New electro-optic laser scanners for small-sat to ground laser communication links

Scott Davis, Seth Johnson, Scott Rommel, Michael Anderson, Jimmy Chen, Tien-Hsin Chao

Proceedings Volume 8739, 87390H (2013) https://doi.org/10.1117/12.2015307

KEYWORDS: Scanners, Free space optics, Electro optics, Receivers, Laser scanners, Telecommunications, Liquid crystals, Sensors, Signal attenuation, Satellites

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Proceedings Article | 29 April 2013 Paper

Paper

High-speed optical correlator with custom electronics interface design

Tien-Hsin Chao, Thomas Lu

Proceedings Volume 8748, 874803 (2013) https://doi.org/10.1117/12.2018262

KEYWORDS: Digital Light Processing, Spatial light modulators, CMOS sensors, Interfaces, Electronics, Field programmable gate arrays, Automatic target recognition, Optical correlators, Sensors, Mirrors

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Proceedings Article | 29 April 2013 Paper

Paper

Optical image processing and pattern recognition algorithms for optimal optical data retrieval

Brian Walker, Thomas Lu, Sean Stuart, George Reyes, Tien-Hsin Chao

Proceedings Volume 8748, 87480L (2013) https://doi.org/10.1117/12.2018264

KEYWORDS: Receivers, Neural networks, Distortion, Binary data, Transmitters, Optical pattern recognition, Reconstruction algorithms, Detection and tracking algorithms, Optical communications, Data transmission

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Proceedings Article | 4 February 2013 Paper

Paper

Optimizing feature selection strategy for adaptive object identification in noisy environment

Sagar Pandya, Thomas Lu, Tien-Hsin Chao

Proceedings Volume 8662, 866209 (2013) https://doi.org/10.1117/12.2005248

KEYWORDS: Detection and tracking algorithms, Feature extraction, Feature selection, Image filtering, Principal component analysis, Automatic target recognition, Computing systems, Machine vision, Computer vision technology, Information visualization

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Proceedings Article | 23 April 2012 Paper

Paper

Compact liquid crystal waveguide Fourier transform spectrometer for real-time gas sensing in NIR spectral band

Tien-Hsin Chao, Thomas Lu, Scott Davis, Scott Rommel, George Farca, Ben Luey, Alan Martin, Michael Anderson

Proceedings Volume 8398, 83980H (2012) https://doi.org/10.1117/12.923481

KEYWORDS: Waveguides, Liquid crystals, Fourier transforms, Spectroscopy, Sensors, Light sources, Dispersion, Spectral resolution, Cladding, Gases

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Proceedings Article | 23 April 2012 Paper

Paper

Composite wavelet filters for enhanced automated target recognition

Jeffrey Chiang, Yuhan Zhang, Thomas Lu, Tien-Hsin Chao

Proceedings Volume 8398, 83980E (2012) https://doi.org/10.1117/12.923482

KEYWORDS: Video, Neural networks, Automatic target recognition, Image filtering, Wavelets, Feature extraction, Cameras, Target detection, Composites, Target recognition

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Proceedings Article | 23 April 2012 Paper

Paper

Optimization of support vector machine (SVM) for object classification

Matthew Scholten, Neil Dhingra, Thomas Lu, Tien-Hsin Chao

Proceedings Volume 8398, 839806 (2012) https://doi.org/10.1117/12.923483

KEYWORDS: Automatic target recognition, Detection and tracking algorithms, Optical scanning systems, Target detection, Machine vision, Computer vision technology, Computing systems, Principal component analysis, Reliability, Feature extraction

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Proceedings Article | 9 February 2012 Paper

Paper

Intelligent image analysis for image-guided hair removal and skin therapy

Brian Walker, Thomas Lu, Tien-Hsin Chao

Proceedings Volume 8207, 820707 (2012) https://doi.org/10.1117/12.910741

KEYWORDS: Skin, Wavelets, Automatic target recognition, Laser therapeutics, Image processing, Image enhancement, Light sources and illumination, Algorithm development, Detection and tracking algorithms, Target recognition

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Proceedings Article | 26 April 2011 Paper

Paper

Optimization of nonlinear kernel PCA feature extraction algorithms for automatic target recognition

Seth Winger, Thomas Lu, Tien-Hsin Chao

Proceedings Volume 8055, 80550E (2011) https://doi.org/10.1117/12.886148

KEYWORDS: Principal component analysis, Automatic target recognition, Feature extraction, Image processing, Detection and tracking algorithms, Image filtering, Optimization (mathematics), Video, Computing systems, Cameras

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Proceedings Article | 26 April 2011 Paper

Paper

Feasibility breadboard demonstration of an imaging Fourier transform spectrometer using solid state time delay

Tien-Hsin Chao, Thomas Lu

Proceedings Volume 8055, 805507 (2011) https://doi.org/10.1117/12.886150

KEYWORDS: Switches, Fourier transforms, Wave plates, Spectroscopy, Polarizers, Electro optics, Light sources, Solid state physics, Prototyping, Sensors

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Proceedings Article | 26 April 2011 Paper

Paper

Autonomous learning approach for automatic target recognition processor

Tien-Hsin Chao, Thomas Lu

Proceedings Volume 8055, 805502 (2011) https://doi.org/10.1117/12.886145

KEYWORDS: Automatic target recognition, Target recognition, Neural networks, Dynamical systems, Systems modeling, Neurons, Data modeling, Sensors, Data fusion, Improvised explosive devices

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Proceedings Article | 26 April 2011 Paper

Paper

Monolithic liquid crystal waveguide Fourier transform spectrometer for gas species sensing

Tien-Hsin Chao, Thomas Lu, Scott Davis, Scott Rommel, George Farca, Ben Luey, Alan Martin, Michael Anderson

Proceedings Volume 8055, 805506 (2011) https://doi.org/10.1117/12.886146

KEYWORDS: Waveguides, Fourier transforms, Liquid crystals, Sensors, Spectroscopy, Gases, FT-IR spectroscopy, Light sources, Cladding, Neodymium

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Proceedings Article | 7 May 2010 Paper

Paper

Optimization of a multi-stage ATR system for small target identification

Tsung Han (Hank) Lin, Thomas Lu, Henry Braun, Weston Edens, Yuhan Zhang, Tien-Hsin Chao, Christopher Assad, Terrance Huntsberger

Proceedings Volume 7696, 76961Y (2010) https://doi.org/10.1117/12.858165

KEYWORDS: Neural networks, Neurons, Video, Automatic target recognition, Target recognition, Image filtering, Principal component analysis, Feature extraction, Light sources and illumination, Optical filters

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Proceedings Article | 13 April 2010 Paper

Paper

Feature extraction and selection strategies for automated target recognition

W. Nicholas Greene, Yuhan Zhang, Thomas Lu, Tien-Hsin Chao

Proceedings Volume 7703, 77030B (2010) https://doi.org/10.1117/12.848007

KEYWORDS: Principal component analysis, Independent component analysis, Feature extraction, Automatic target recognition, Image filtering, Target recognition, Target detection, MATLAB, Dimension reduction, Optical filters

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Proceedings Article | 23 November 2009 Paper

Paper

Compact liquid crystal waveguide based fourier transform spectrometer for in-situ and remote gas and chemical sensing

Tien-Hsin Chao, Scott Davis, Michael Anderson

Proceedings Volume 7508, 75080K (2009) https://doi.org/10.1117/12.838260

KEYWORDS: Waveguides, Liquid crystals, Fourier transforms, Sensors, Spectroscopy, Electro optics, Polarization, Cladding, Light sources, Interferometers

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Proceedings Article | 13 April 2009 Paper

Paper

Neural network target identification system for false alarm reduction

David Ye, Weston Edens, Thomas Lu, Tien-Hsin Chao

Proceedings Volume 7340, 73400K (2009) https://doi.org/10.1117/12.820949

KEYWORDS: Image filtering, Neural networks, Mining, Feature extraction, Target detection, Wavelet transforms, Image processing, Neurons, Target recognition, Computing systems

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Proceedings Article | 13 April 2009 Paper

Paper

Automatic target recognition (ATR) performance improvement using integrated grayscale optical correlator and neural network

Tien-Hsin Chao, Thomas Lu

Proceedings Volume 7340, 734003 (2009) https://doi.org/10.1117/12.820948

KEYWORDS: Digital Light Processing, Spatial light modulators, Digital micromirror devices, Automatic target recognition, Neural networks, Optical filters, Image filtering, Optical correlators, Feature extraction, Fourier transforms

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Proceedings Article | 13 April 2009 Paper

Paper

Optimization of OT-MACH filter generation for target recognition

Oliver Johnson, Weston Edens, Thomas Lu, Tien-Hsin Chao

Proceedings Volume 7340, 734008 (2009) https://doi.org/10.1117/12.820950

KEYWORDS: Image filtering, Digital filtering, Missiles, Target detection, Optimal filtering, Image processing, Target recognition, Optical filters, Detection and tracking algorithms, Video

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Proceedings Article | 17 March 2008 Paper

Paper

Grayscale optical correlator for CAD/CAC applications

Tien-Hsin Chao, Thomas Lu

Proceedings Volume 6977, 697704 (2008) https://doi.org/10.1117/12.785873

KEYWORDS: Target detection, Optical correlators, Image filtering, Automatic target recognition, Land mines, Neural networks, Detection and tracking algorithms, Algorithm development, Mining, Tolerancing

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Proceedings Article | 17 March 2008 Paper

Paper

Compact liquid crystal waveguide based Fourier transform spectrometer for in-situ and remote gas and chemical sensing

Tien-Hsin Chao, Thomas Lu, Scott Davis, Scott Rommel, George Farca, Ben Luey, Alan Martin, Michael Anderson

Proceedings Volume 6977, 69770P (2008) https://doi.org/10.1117/12.785888

KEYWORDS: Waveguides, Liquid crystals, Fourier transforms, Sensors, Electro optics, Spectroscopy, Cladding, Polarization, Prototyping, Mirrors

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Proceedings Article | 27 September 2007 Paper

Paper

Compact electro-optic imaging Fourier transform spectrometer

Tien-Hsin Chao

Proceedings Volume 6713, 67130V (2007) https://doi.org/10.1117/12.737003

KEYWORDS: Switches, Fourier transforms, Wave plates, Spectroscopy, Electro optics, Electro optical imaging, Sensors, Polarizers, Hyperspectral imaging, Optical components

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Proceedings Article | 3 May 2007 Paper

Paper

Evaluation of holographic subsurface radar for NDE of space shuttle thermal protection tiles

Thomas Lu, Cooper Snapp, Tien-Hsin Chao, Anilkumar Thakoor, Tim Bechtel, Sergey Ivashov, Igor Vasiliev

Proceedings Volume 6555, 65550S (2007) https://doi.org/10.1117/12.719911

KEYWORDS: Radar, Holography, Nondestructive evaluation, Aluminum, Image processing, Dielectrics, Foam, Microwave radiation, Inspection, 3D image processing

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Proceedings Article | 9 April 2007 Paper

Paper

System issues of developing grayscale optical correlator for ATR applications

Tien-Hsin Chao, Thomas Lu

Proceedings Volume 6574, 657405 (2007) https://doi.org/10.1117/12.723632

KEYWORDS: Target detection, Automatic target recognition, Optical correlators, Spatial light modulators, Image filtering, Neural networks, Image processing, Computer programming, Optical filters, Liquid crystals

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Proceedings Article | 9 April 2007 Paper

Paper

A neural network identification system for space-borne GCMS pattern recognition

Thomas Lu, Tien-Hsin Chao

Proceedings Volume 6574, 65740E (2007) https://doi.org/10.1117/12.723633

KEYWORDS: Neural networks, Neurons, Chemical compounds, Calibration, Signal processing, Databases, Bioalcohols, Pattern recognition, Evolutionary algorithms, Oxygen

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Proceedings Article | 19 May 2006 Paper

Paper

Real-time composite pattern demodulation using optical correlators

Daniel Lau, Laurence Hassebrook, Thomas Lu, Tien-Hsin Chao

Proceedings Volume 6220, 62200F (2006) https://doi.org/10.1117/12.665902

KEYWORDS: Composites, Spatial light modulators, Laser imaging, Cameras, Video, Image processing, Modulation, Demodulation, Optical correlators, Structured light

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Proceedings Article | 17 April 2006 Paper

Paper

A high resolution and high speed 3D imaging system and its application on ATR

Thomas Lu, Tien-Hsin Chao

Proceedings Volume 6245, 62450L (2006) https://doi.org/10.1117/12.673442

KEYWORDS: 3D modeling, Cameras, 3D image processing, Imaging systems, 3D acquisition, Calibration, Digital cameras, Visual process modeling, 3D vision, 3D metrology

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Proceedings Article | 17 April 2006 Paper

Paper

Recent progress on grayscale optical correlator for automatic target recognition

Tien-Hsin Chao, Thomas Lu, Hanying Zhou

Proceedings Volume 6245, 624503 (2006) https://doi.org/10.1117/12.673441

KEYWORDS: Spatial light modulators, Image filtering, Optical filters, Automatic target recognition, Optical correlators, Algorithm development, Detection and tracking algorithms, Photodetectors, Target detection, Image segmentation

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Proceedings Article | 10 September 2005 Paper

Paper

Neural network post-processing of grayscale optical correlator

Thomas Lu, Casey Hughlett, Hanying Zhou, Tien-Hsin Chao, Jay Hanan

Proceedings Volume 5908, 590810 (2005) https://doi.org/10.1117/12.615573

KEYWORDS: Neural networks, Image filtering, Neurons, Optical correlators, Optical filters, Cameras, Detection and tracking algorithms, Pattern recognition, Image segmentation, Composites

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Proceedings Article | 28 March 2005 Paper

Paper

Optical joint transform correlator using high-speed holographic photopolymer film

Tien-Hsin Chao

Proceedings Volume 5816, (2005) https://doi.org/10.1117/12.607966

KEYWORDS: Holography, Optical correlators, Fourier transforms, Joint transforms, Spatial light modulators, Charge-coupled devices, Biometrics, Pattern recognition, Optical pattern recognition, Semiconductor lasers

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Proceedings Article | 28 March 2005 Paper

Paper

Development of streamlined OT-MACH-based ATR algorithm for grayscale optical correlator

Hanying Zhou, Casey Hughlett, Jay Hanan, Thomas Lu, Tien-Hsin Chao

Proceedings Volume 5816, (2005) https://doi.org/10.1117/12.607969

KEYWORDS: Image filtering, Algorithm development, Automatic target recognition, Detection and tracking algorithms, Optical correlators, Optical filters, Image analysis, Target detection, Software development, Distortion

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Proceedings Article | 28 March 2005 Paper

Paper

Closed-loop automatic target recognition and monitoring system

Jay Hanan, Tien-Hsin Chao, Christopher Assad, Casey Hughlett, Hanying Zhou, Thomas Lu

Proceedings Volume 5816, (2005) https://doi.org/10.1117/12.607970

KEYWORDS: Neural networks, Automatic target recognition, Target detection, Optical correlators, Target recognition, Detection and tracking algorithms, Spatial light modulators, Computer simulations, Optical tracking, Digital filtering

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Proceedings Article | 28 March 2005 Paper

Paper

Portable 512 x 512 Grayscale Optical Correlator

Tien-Hsin Chao, Jay Hanan, Hanying Zhou, George Reyes

Proceedings Volume 5816, (2005) https://doi.org/10.1117/12.607965

KEYWORDS: Spatial light modulators, Image filtering, Optical correlators, Optical filters, Photodetectors, Target recognition, Fourier transforms, Automatic target recognition, Optical design, Mirrors

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Proceedings Article | 28 March 2005 Paper

Paper

Near IR electro-optic imaging Fourier transform spectrometer

Tien-Hsin Chao, Hanying Zhou, Xiaowei Xia, Steven Serati

Proceedings Volume 5816, (2005) https://doi.org/10.1117/12.607968

KEYWORDS: Wave plates, Switches, Fourier transforms, Spectroscopy, Electro optics, Infrared spectroscopy, Sensors, Electro optical imaging, Infrared imaging, Imaging systems

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Proceedings Article | 28 March 2005 Paper

Paper

Multispectral pattern recognition using cascaded surface plasmon tunable filter and grayscale optical correlator

Yu Wang, Tien Chao

Proceedings Volume 5816, (2005) https://doi.org/10.1117/12.607967

KEYWORDS: Surface plasmons, Interfaces, Metals, Tunable filters, Optical correlators, Dielectrics, Optical pattern recognition, Pattern recognition, Silver, Prisms

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Proceedings Article | 12 April 2004 Paper

Paper

Neural network tracking and extension of positive tracking periods

Jay Hanan, Tien-Hsin Chao, Pierre Moreels

Proceedings Volume 5437, (2004) https://doi.org/10.1117/12.548081

KEYWORDS: Sensors, Neural networks, Target recognition, Target detection, Mars, Rockets, Clouds, Chaos, Feature extraction, Automatic tracking

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Proceedings Article | 12 April 2004 Paper

Paper

Hyperspectral imaging using electro-optic Fourier transform spectrometer

Tien-Hsin Chao, Hanying Zhou, Xiaowei Xia, Steven Serati

Proceedings Volume 5437, (2004) https://doi.org/10.1117/12.548075

KEYWORDS: Fourier transforms, Spectroscopy, Switches, Wave plates, Electro optics, Hyperspectral imaging, Electro optical imaging, Sensors, Polarizers, Imaging systems

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Proceedings Article | 12 April 2004 Paper

Paper

Portable 512x512 grayscale optical correlator

Tien-Hsin Chao, Jay Hanan, Hanying Zhou, George Reyes

Proceedings Volume 5437, (2004) https://doi.org/10.1117/12.548059

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Proceedings Article | 12 April 2004 Paper

Paper

Performance of multilevel error correction in binary holographic memory

Jay Hanan, Tien-Hsin Chao, George Reyes

Proceedings Volume 5437, (2004) https://doi.org/10.1117/12.548068

KEYWORDS: Binary data, Holography, Error analysis, Data storage, Holographic data storage systems, Spatial light modulators, Error control coding, Charge-coupled devices, Data centers, Holograms

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Proceedings Article | 12 April 2004 Paper

Paper

On the development of filter management module for grayscale optical correlator

Hanying Zhou, Casey Hughlett, Jay Hanan, Tien-Hsin Chao

Proceedings Volume 5437, (2004) https://doi.org/10.1117/12.548066

KEYWORDS: Image filtering, Optical filters, Optical correlators, Detection and tracking algorithms, Image analysis, Optical signal processing, Tolerancing, Automatic target recognition, Databases, Algorithm development

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Proceedings Article | 6 August 2003 Paper

Paper

Simulation of miniature optical correlator for future generation of spacecraft precision landing

Hanying Zhou, Tien-Hsin Chao, Bryan Martin, Nate Villaume

Proceedings Volume 5106, (2003) https://doi.org/10.1117/12.501410

KEYWORDS: Optical correlators, Space operations, Device simulation, Image processing, Image resolution, Visualization, Optical simulations, Cameras, Software development, Spatial light modulators

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Proceedings Article | 6 August 2003 Paper

Paper

Real-time automatic target recognition using a compact 512x512 grayscale optical correlator

Tien-Hsin Chao, Hanying Zhou, George Reyes, Jay Hanan

Proceedings Volume 5106, (2003) https://doi.org/10.1117/12.501402

KEYWORDS: Spatial light modulators, Automatic target recognition, Optical correlators, Image filtering, Target detection, Optical filters, Packaging, Fourier transforms, Beam splitters, Sensors

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Proceedings Article | 6 August 2003 Paper

Paper

Precision of a radial basis function neural network tracking method

Jay Hanan, Hanying Zhou, Tien-Hsin Chao

Proceedings Volume 5106, (2003) https://doi.org/10.1117/12.501406

KEYWORDS: Neurons, Automatic tracking, Neural networks, Nose, Optical tracking, Feature extraction, Detection and tracking algorithms, Video, Computer simulations, Chaos

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Proceedings Article | 20 November 2002 Paper

Paper

High-speed high-density holographic memory using electro-optic beam steering devices

Tien-Hsin Chao, Hanying Zhou, George Reyes, Danut Dragoi, Jay Hanan

Proceedings Volume 4803, (2002) https://doi.org/10.1117/12.452712

KEYWORDS: Holography, Beam steering, Spatial light modulators, Electro optics, Data storage, Holograms, Crystals, Multiplexing, Earth sciences, Laser crystals

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Proceedings Article | 16 September 2002 Paper

Paper

High-speed optical object recognition processor with massive holographic memory

Tien-Hsin Chao, Hanying Zhou, George Reyes

Proceedings Volume 4929, (2002) https://doi.org/10.1117/12.483219

KEYWORDS: Spatial light modulators, Holography, Image filtering, Optical filters, Fourier transforms, Optical correlators, Object recognition, Beam splitters, Semiconductor lasers, Mirrors

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Proceedings Article | 6 March 2002 Paper

Paper

Spacecraft navigation using a grayscale optical correlator

Tien-Hsin Chao, Hanying Zhou, George Reyes

Proceedings Volume 4734, (2002) https://doi.org/10.1117/12.458405

KEYWORDS: Optical correlators, Spatial light modulators, Space operations, Image filtering, Target detection, Target recognition, Optical filters, Optical pattern recognition, Fourier transforms, Detection and tracking algorithms

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Proceedings Article | 6 March 2002 Paper

Paper

Compact 512 x 512 grayscale optical correlator

Tien-Hsin Chao, Hanying Zhou, George Reyes

Proceedings Volume 4734, (2002) https://doi.org/10.1117/12.458412

KEYWORDS: Spatial light modulators, Fourier transforms, Optical correlators, Image filtering, Automatic target recognition, Optical filters, Beam splitters, Semiconductor lasers, Space operations, Tolerancing

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Proceedings Article | 20 March 2001 Paper

Paper

Compact holographic memory and its application to optical pattern recognition

Tien-Hsin Chao, George Reyes, Hanying Zhou

Proceedings Volume 4387, (2001) https://doi.org/10.1117/12.421152

KEYWORDS: Holography, Image filtering, Holograms, Data storage, Optical filters, Beam steering, Crystals, Optical pattern recognition, Spatial light modulators, Laser crystals

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Proceedings Article | 20 March 2001 Paper

Paper

Grayscale optical correlator for real-time onboard ATR

Tien-Hsin Chao, Hanying Zhou, George Reyes

Proceedings Volume 4387, (2001) https://doi.org/10.1117/12.421138

KEYWORDS: Spatial light modulators, Image filtering, Computer generated holography, Automatic target recognition, Modulation, Computer programming, Linear filtering, Optical correlators, Optical filters, Space operations

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SPIE Journal Paper | 1 May 2000

Data reduction via the wavelet transform for the synthesis of the projection-slice filter

Vahid Riasati, Hanying Zhou, Tien-Hsin Chao, Don Gregory

OE, Vol. 39, Issue 05, (May 2000) https://doi.org/10.1117/12.10.1117/1.602489

KEYWORDS: Image filtering, Wavelet transforms, Phase only filters, Image compression, Wavelets, Optical filters, Fourier transforms, Fused deposition modeling, Distortion, Computer simulations

Proceedings Article | 31 March 2000 Paper

Paper

Practical filter dynamic range compression for grayscale optical correlator using bipolar-amplitude SLM

Hanying Zhou, Tien-Hsin Chao, George Reyes

Proceedings Volume 4043, (2000) https://doi.org/10.1117/12.381583

KEYWORDS: Optical filters, Spatial light modulators, Optical correlators, Optimal filtering, Image filtering, Nonlinear filtering, Distortion, Tolerancing, Chaos, Modulation

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Proceedings Article | 31 March 2000 Paper

Paper

512x512 high-speed grayscale optical correlator

Tien-Hsin Chao, Hanying Zhou, George Reyes

Proceedings Volume 4043, (2000) https://doi.org/10.1117/12.381617

KEYWORDS: Spatial light modulators, Optical correlators, Optical filters, Automatic target recognition, Image filtering, Target detection, Digital filtering, Reflectivity, Fourier transforms, Composites

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Proceedings Article | 31 March 2000 Paper

Paper

Clutter rejection via the wavelet transform for improved target detection using the projection-slice synthetic discriminant function filters

Vahid Riasati, Tien-Hsin Chao, Hanying Zhou, Don Gregory

Proceedings Volume 4043, (2000) https://doi.org/10.1117/12.381593

KEYWORDS: Wavelet transforms, Image filtering, Target detection, Wavelets, Fourier transforms, Optical filters, Chaos, Detection and tracking algorithms, Optical pattern recognition, Object recognition

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Proceedings Article | 28 June 1999 Paper

Paper

High-density holographic memory and its applications to optical pattern recognition

Tien-Hsin Chao, Hanying Zhou, George Reyes

Proceedings Volume 3864, 38641M (1999) https://doi.org/10.1117/12.997668

KEYWORDS: Holography, Image filtering, Optical filters, Optical correlators, Optical pattern recognition, Spatial light modulators, Automatic target recognition, Image resolution, Pattern recognition, Acousto-optics

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Proceedings Article | 9 March 1999 Paper

Paper

Automatic target recognition field demonstration using a grayscale optical correlator

Tien-Hsin Chao, George Reyes, Hanying Zhou

Proceedings Volume 3715, (1999) https://doi.org/10.1117/12.341323

KEYWORDS: Spatial light modulators, Optical filters, Optical correlators, Image filtering, Automatic target recognition, Modulation, Fourier transforms, Sensors, Relays, Composites

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Proceedings Article | 9 March 1999 Paper

Paper

MACH filter synthesizing for detecting targets in cluttered environment for grayscale optical correlator

Hanying Zhou, Tien-Hsin Chao

Proceedings Volume 3715, (1999) https://doi.org/10.1117/12.341322

KEYWORDS: Optical filters, Optical correlators, Target detection, Image filtering, Optimal filtering, Modulation, Distortion, Tolerancing, Spatial light modulators, Environmental sensing

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Proceedings Article | 4 September 1998 Paper

Paper

Aided target recognition processing of MUDSS sonar data

Brian Lau, Tien-Hsin Chao

Proceedings Volume 3392, (1998) https://doi.org/10.1117/12.324194

KEYWORDS: Detection and tracking algorithms, Target detection, Image processing, Neural networks, Image filtering, Target recognition, Sensors, Image enhancement, Lithium, Evolutionary algorithms

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Proceedings Article | 23 March 1998 Paper

Paper

Grayscale optical correlator

Tien-Hsin Chao, George Reyes, Youngchul Park

Proceedings Volume 3386, (1998) https://doi.org/10.1117/12.304790

KEYWORDS: Optical correlators, Spatial light modulators, Optical filters, Image filtering, Distortion, Modulation, Target detection, LCDs, Composites, Algorithm development

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Proceedings Article | 23 March 1998 Paper

Paper

Real-time adaptive optical joint transform correlator

Tien-Hsin Chao, George Reyes, Youngchul Park, David Collins

Proceedings Volume 3386, (1998) https://doi.org/10.1117/12.304788

KEYWORDS: Optical correlators, Spatial light modulators, Joint transforms, Adaptive optics, Image processing, Sensors, Holography, Target detection, Video, CCD image sensors

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Proceedings Article | 27 March 1997 Paper

Paper

High-speed camera-sized optical wavelet processor

Tien-Hsin Chao, Youngchul Park, George Reyes

Proceedings Volume 3073, (1997) https://doi.org/10.1117/12.270365

KEYWORDS: Spatial light modulators, Modulation, Optical filters, Wavelets, Optical correlators, Wavelet transforms, Phase only filters, Rockets, Liquid crystals, Spatial filters

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Proceedings Article | 27 March 1997 Paper

Paper

Automatic target recognition processor using an optical wavelet preprocessor and an electronic neural classifier

Youngchul Park, Tien-Hsin Chao

Proceedings Volume 3073, (1997) https://doi.org/10.1117/12.270376

KEYWORDS: Wavelets, Neural networks, Target detection, Automatic target recognition, Feature extraction, Neurons, Facial recognition systems, Optical filters, Algorithm development, Chaos

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Proceedings Article | 17 February 1997 Paper

Paper

Vehicle detection and classification in shadowy traffic images using wavelets and neural networks

Tien-Hsin Chao, Brian Lau, Youngchul Park

Proceedings Volume 2902, (1997) https://doi.org/10.1117/12.267139

KEYWORDS: Wavelets, Image segmentation, Neural networks, Image classification, Image processing, Feature extraction, Neurons, Wavelet transforms, Algorithm development, Surveillance

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Proceedings Article | 15 March 1996 Paper

Paper

Portable optical wavelet processor

Tien-Hsin Chao, Araz Yacoubian, Brian Lau

Proceedings Volume 2752, (1996) https://doi.org/10.1117/12.235658

KEYWORDS: Wavelets, Wavelet transforms, Fourier transforms, Target detection, Image filtering, Lenses, Image processing, Optical filters, Linear filtering, Spatial light modulators

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Proceedings Article | 20 June 1995 Paper

Paper

Mine detection using wavelet processing of electro-optic active sensor data

Tien-Hsin Chao, Brian Lau, Araz Yacoubian, Girardeau Henderson

Proceedings Volume 2496, (1995) https://doi.org/10.1117/12.211340

KEYWORDS: Wavelets, Land mines, Image processing, Mining, Wavelet transforms, Target detection, Sensors, Spatial light modulators, Optical filters, Image filtering

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Proceedings Article | 6 April 1995 Paper

Paper

Image sieves

Brian Lau, Tien-Hsin Chao, Eng Chong Ha, Eric Hegblom, William Miceli

Proceedings Volume 2491, (1995) https://doi.org/10.1117/12.205408

KEYWORDS: Image filtering, Wavelets, Binary data, Image processing, Convolution, Mining, Defense technologies, Wavelet transforms, Automatic target recognition, Head

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Proceedings Article | 28 March 1995 Paper

Paper

Real-time updatable optical wavelet processor

Tien-Hsin Chao, Araz Yacoubian, William Miceli

Proceedings Volume 2490, (1995) https://doi.org/10.1117/12.205766

KEYWORDS: Wavelets, Spatial light modulators, Target detection, Land mines, Wavelet transforms, Optical filters, Polarization, Optical correlators, Modulation, Computer programming

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Proceedings Article | 29 September 1994 Paper

Paper

Optical wavelet processor using cascaded liquid crystal television spatial light modulators (LCTV SLMs)

Tien-Hsin Chao, Araz Yacoubian, Brian Lau, Eric Hegblom, William Miceli

Proceedings Volume 2297, (1994) https://doi.org/10.1117/12.187285

KEYWORDS: Wavelets, Spatial light modulators, Optical filters, Phase shift keying, Phase modulation, Holography, Fourier transforms, Binary data, Polarization, Liquid crystals

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SPIE Journal Paper | 1 July 1994

Optical implementation of a matching pursuit for image representation

Tien-Hsin Chao, Brian Lau, William Miceli

OE, Vol. 33, Issue 07, (July 1994) https://doi.org/10.1117/12.10.1117/12.174456

KEYWORDS: Associative arrays, Wavelets, Digital imaging, Wavelet transforms, Image processing, Detection and tracking algorithms, Optical signal processing, Computer simulations, Photodetectors, Signal to noise ratio

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Proceedings Article | 15 March 1994 Paper

Paper

Optical implementation of image representation using matching pursuit

Tien-Hsin Chao, Brian Lau, William Miceli

Proceedings Volume 2242, (1994) https://doi.org/10.1117/12.170096

KEYWORDS: Associative arrays, Computer simulations, Optical correlators, Optical signal processing, Wavelets, Algorithm development, Detection and tracking algorithms, Target recognition, Image analysis, Binary data

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Proceedings Article | 1 March 1994 Paper

Paper

Integrated wavelet and neural processor for automatic target recognition

Tien-Hsin Chao, Eric Hegblom, Brian Lau

Proceedings Volume 2237, (1994) https://doi.org/10.1117/12.169433

KEYWORDS: Wavelets, Feature extraction, Wavelet transforms, Automatic target recognition, Neural networks, Optical pattern recognition, Target recognition, Aerospace engineering, Optoelectronics, Classification systems

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Proceedings Article | 9 November 1993 Paper

Paper

Optoelectronically implemented neural network with a wavelet preprocessor

Tien-Hsin Chao, Eric Hegblom, Brian Lau, William Stoner, William Miceli

Proceedings Volume 2026, (1993) https://doi.org/10.1117/12.163596

KEYWORDS: Wavelets, Neural networks, Optoelectronics, Feature extraction, Wavelet transforms, Optical filters, Fourier transforms, Holography, Optical correlators, Phase shift keying

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SPIE Journal Paper | 1 November 1993

Improved interclass multiobject discrimination with phase-difference prewhitening technique

Hanying Zhou, Feng Zhao, Francis Yu, Tien-Hsin Chao

OE, Vol. 32, Issue 11, (November 1993) https://doi.org/10.1117/12.10.1117/12.150681

KEYWORDS: Optimal filtering, Optical filters, Phase only filters, Composites, Image filtering, Computer simulations, Linear filtering, Electronic filtering, Detection and tracking algorithms, Phase shifts

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Proceedings Article | 25 October 1993 Paper

Paper

64 x 64 thresholding photodetector array for optical pattern recognition

Harry Langenbacher, Tien-Hsin Chao, Timothy Shaw, Jeffrey Yu

Proceedings Volume 1959, (1993) https://doi.org/10.1117/12.160305

KEYWORDS: Photodetectors, Optical correlators, Logic, Clocks, Optical pattern recognition, Charge-coupled devices, Sensors, Optoelectronics, Neural networks, Digital electronics

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Proceedings Article | 25 October 1993 Paper

Paper

Shift-invariant optical neural network with holographic bipolar synapses

Tien-Hsin Chao

Proceedings Volume 1959, (1993) https://doi.org/10.1117/12.160313

KEYWORDS: Holography, Neural networks, Optical correlators, Holograms, Photodetectors, Multiplexing, Optical pattern recognition, Fourier transforms, Optical filters, Sensors

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Proceedings Article | 25 October 1993 Paper

Paper

Spatial-spectral optical pattern recognition using an acousto-optic tunable filter preprocessor

Tien-Hsin Chao, George Reyes, Eric Hegblom, Li-Jen Cheng

Proceedings Volume 1959, (1993) https://doi.org/10.1117/12.160312

KEYWORDS: Optical pattern recognition, Target recognition, Optical correlators, Spectroscopy, Optical filters, Image enhancement, Image filtering, Imaging systems, Tunable filters, Acousto-optics

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Proceedings Article | 15 July 1993 Paper

Paper

Multispectral imaging systems using acousto-optic tunable filter

Li-Jen Cheng, Tien-Hsin Chao, Mack Dowdy, Clayton LaBaw, J. Colin Mahoney, George Reyes, Ken Bergman

Proceedings Volume 1874, (1993) https://doi.org/10.1117/12.148065

KEYWORDS: Imaging systems, Multispectral imaging, Polarization, Acousto-optics, Crystals, Remote sensing, Prototyping, Infrared radiation, Aerospace engineering, Cameras

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Proceedings Article | 2 February 1993 Paper

Paper

Optical implementation of a shift-invariant neocognitron

Tien-Hsin Chao, William Stoner, William Miceli

Proceedings Volume 1773, (1993) https://doi.org/10.1117/12.983186

KEYWORDS: Neural networks, Holography, Optical correlators, Diffraction, Photodetectors, Diffraction gratings, Sensors, Holograms, Multiplexing, Fourier transforms

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Proceedings Article | 12 January 1993 Paper

Paper

Dynamically reconfigurable optical morphological processor and its applications

Tien-Hsin Chao

Proceedings Volume 1772, (1993) https://doi.org/10.1117/12.140918

KEYWORDS: Image processing, Binary data, Spatial light modulators, Photodetectors, Optical components, Fourier transforms, Camera shutters, Lithium, Aerospace engineering, Holography

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Proceedings Article | 1 July 1992 Paper

Paper

Automatic target recognition using a feature-based optical neural network

Tien-Hsin Chao

Proceedings Volume 1701, (1992) https://doi.org/10.1117/12.138335

KEYWORDS: Neural networks, Holography, Optical correlators, Diffraction, Photodetectors, Diffraction gratings, Optical pattern recognition, Sensors, Multiplexing, Automatic target recognition

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Proceedings Article | 1 July 1992 Paper

Paper

Novelty filtered optical correlator using photorefractive crystal

Duncan Liu, Tien-Hsin Chao, Li-Jen Cheng

Proceedings Volume 1701, (1992) https://doi.org/10.1117/12.138317

KEYWORDS: Optical correlators, Crystals, Fourier transforms, Optical filters, Laser crystals, CRTs, Image filtering, Optical pattern recognition, Aerospace engineering, Microelectronics

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Proceedings Article | 1 July 1992 Paper

Paper

Hazard detection and avoidance sensor for NASA's planetary landers

Brian Lau, Tien-Hsin Chao

Proceedings Volume 1702, (1992) https://doi.org/10.1117/12.60552

KEYWORDS: Sensors, Neural networks, Neurons, Image processing, Computer simulations, Fourier transforms, Optical filters, Image classification, Synthetic aperture radar, Signal processing

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Proceedings Article | 11 November 1991 Paper

Paper

Optical implementation of neocognitron and its applications to radar signature discrimination

Tien-Hsin Chao, William Stoner

Proceedings Volume 1558, (1991) https://doi.org/10.1117/12.49657

KEYWORDS: Optical correlators, Sensors, Neural networks, Photodetectors, LIDAR, Holography, Diffraction, Radar, Wave propagation, Optoelectronics

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Proceedings Article | 27 December 1990 Paper

Paper

Real-time optical correlator using photorefractive GaAs

Duncan Liu, Li-Jen Cheng, Tien-Hsin Chao, Jeffrey Yu, Don Gregory

Proceedings Volume 1347, (1990) https://doi.org/10.1117/12.23405

KEYWORDS: Optical correlators, Gallium arsenide, Liquid crystals, Modulators, Joint transforms, Four wave mixing, Diffraction

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Proceedings Article | 27 December 1990 Paper

Paper

Acousto-optic tunable filter imaging spectrometer for NASA applications: breadboard demonstration

Tien-Hsin Chao, Jeffrey Yu, Li-Jen Cheng, James Lambert

Proceedings Volume 1347, (1990) https://doi.org/10.1117/12.23455

KEYWORDS: Spectroscopy, Imaging systems, Relays, CCD cameras, Absorption, Ruby, Multispectral imaging, Zoom lenses, Cameras, Diffraction

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Proceedings Article | 27 December 1990 Paper

Paper

Real-time optical correlator using computer-generated holographic filter on a liquid crystal light valve

Tien-Hsin Chao, Jeffrey Yu

Proceedings Volume 1347, (1990) https://doi.org/10.1117/12.23410

KEYWORDS: Optical correlators, Optical filters, Liquid crystals, Light valves, Computer generated holography, Image filtering, Computer programming, Spatial light modulators, Linear filtering, Fourier transforms

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Proceedings Article | 27 December 1990 Paper

Paper

Acousto-optic tunable filter imaging spectrometer for NASA applications: system issues

Jeffrey Yu, Tien-Hsin Chao, Li-Jen Cheng

Proceedings Volume 1347, (1990) https://doi.org/10.1117/12.23454

KEYWORDS: Imaging systems, Spectroscopy, Acousto-optics, Tunable filters, Visible radiation

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Showing 5 of 94 publications

Proceedings Volume Editor (22)

SPIE Conference Volume | 1 April 2014

Optical Pattern Recognition XXV

SPIE Conference Volume | 11 March 2013

Optical Pattern Recognition XXIV

SPIE Conference Volume | 20 March 2012

Optical Pattern Recognition XXIII

SPIE Conference Volume | 26 April 2011

Optical Pattern Recognition XXII

SPIE Conference Volume | 22 April 2010

Automatic Target Recognition XX; Acquisition, Tracking, Pointing, and Laser Systems Technologies XXIV; and Optical Pattern Recognition XXI

Showing 5 of 22 publications

Conference Committee Involvement (25)

Pattern Recognition and Tracking XXVIII

12 April 2017 | Anaheim, CA, United States

Optical Pattern Recognition XXVII

20 April 2016 | Baltimore, MD, United States

Optical Pattern Recognition XXVI

22 April 2015 | Baltimore, MD, United States

Optical Pattern Recognition XXV

7 May 2014 | Baltimore, MD, United States

Optical Pattern Recognition XXIV

29 April 2013 | Baltimore, Maryland, United States

Optical Pattern Recognition XXIII

26 April 2012 | Baltimore, Maryland, United States

Optical Pattern Recognition XXII

28 April 2011 | Orlando, Florida, United States

Optical Pattern Recognition XXI

8 April 2010 | Orlando, Florida, United States

Optical Pattern Recognition XX

16 April 2009 | Orlando, Florida, United States

Optical Pattern Recognition XIX

17 March 2008 | Orlando, Florida, United States

Optical Pattern Recognition XVIII

9 April 2007 | Orlando, Florida, United States

Optical Pattern Recognition XVII

20 April 2006 | Orlando (Kissimmee), Florida, United States

Optical Pattern Recognition XVI

31 March 2005 | Orlando, Florida, United States

Optical Pattern Recognition XV

15 April 2004 | Orlando, Florida, United States

Optical Pattern Recognition XIV

24 April 2003 | Orlando, Florida, United States

Optical Pattern Recognition XIII

2 April 2002 | Orlando, FL, United States

Optical Pattern Recognition XII

19 April 2001 | Orlando, FL, United States

Optical Pattern Recognition XI

26 April 2000 | Orlando, FL, United States

Optical Pattern Recognition X

7 April 1999 | Orlando, FL, United States

Optical Pattern Recognition IX

14 April 1998 | Orlando, FL, United States

Optical Pattern Recognition VIII

22 April 1997 | Orlando, FL, United States

Optical Pattern Recognition VII

9 April 1996 | Orlando, FL, United States

Optical Pattern Recognition VI

19 April 1995 | Orlando, FL, United States

Optical Pattern Recognition V

5 April 1994 | Orlando, FL, United States

Optical Pattern Recognition IV

21 April 1992 | Orlando, FL, United States

Showing 5 of 25 Conference Committees

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