Prof. Majeed M. Hayat Profile

Prof. Majeed M. Hayat

at Univ of New Mexico

SPIE Involvement:

Fellow status | Conference Program Committee | Author

Publications (45)

SPIE Journal Paper | March 20, 2018

Special Section Guest Editorial: Photon Counting Technology

Hayat, Majeed , Buller, Gerald

OE Vol. 57 Issue 03

KEYWORDS: Photon counting, Quantum information, LIDAR, Quantum communications, Sensors, Optical engineering, Single photon detectors, Photonics, Computer programming, Photodetectors

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PROCEEDINGS ARTICLE | May 12, 2016

Exploiting synthetic aperture radar imagery for retrieving vibration signatures of concealed machinery

Proc. SPIE. 9829, Radar Sensor Technology XX

KEYWORDS: Synthetic aperture radar, Signal to noise ratio, Target acquisition, Image retrieval, Radar, Vibrometry, Image resolution, Actuators, Reflectors, Buildings

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PROCEEDINGS ARTICLE | May 5, 2016

3D avalanche multiplication in Si-Ge lateral avalanche photodiodes

Proc. SPIE. 9858, Advanced Photon Counting Techniques X

KEYWORDS: Avalanche photodiodes, Statistical analysis, Silicon, Germanium, Ionization, Photons, Electrons, 3D modeling, Avalanche photodetectors, Absorption

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PROCEEDINGS ARTICLE | May 26, 2015

SAR-based vibrometry using the fractional Fourier transform

Proc. SPIE. 9461, Radar Sensor Technology XIX; and Active and Passive Signatures VI

KEYWORDS: Synthetic aperture radar, Fractional fourier transform, Filtering (signal processing), Signal to noise ratio, Buildings, Antennas, Vibrometry, Phase modulation, Fourier transforms, Reticles

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PROCEEDINGS ARTICLE | May 23, 2013

Point source localization from de-ramped phase history bound on interferometric synthetic aperture radar (IFSAR) accuracy

Proc. SPIE. 8746, Algorithms for Synthetic Aperture Radar Imagery XX

KEYWORDS: Interferometric synthetic aperture radar, Antennas, Error analysis, Synthetic aperture radar, Electroluminescence, Statistical analysis, Source localization, Receivers, Image processing, Radar

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PROCEEDINGS ARTICLE | May 4, 2012

Refocusing vibrating targets in SAR images

Proc. SPIE. 8361, Radar Sensor Technology XVI

KEYWORDS: Synthetic aperture radar, Phase modulation, Detection and tracking algorithms, Phase shift keying, Device simulation, Modulation, Fractional fourier transform, Reconstruction algorithms, Fourier transforms, Computer simulations

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PROCEEDINGS ARTICLE | May 3, 2012

Separation of vibrating and static SAR object signatures via an orthogonal subspace transformation

Proc. SPIE. 8394, Algorithms for Synthetic Aperture Radar Imagery XIX

KEYWORDS: Modulation, Synthetic aperture radar, Phase shift keying, Signal to noise ratio, Doppler effect, Phase measurement, Radar, Data modeling, Image compression, Radar imaging

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PROCEEDINGS ARTICLE | June 21, 2011

SAR vibrometry using the pseudo-subspace approach based on the discrete fractional Fourier transform

Proc. SPIE. 8021, Radar Sensor Technology XV

KEYWORDS: Synthetic aperture radar, Signal to noise ratio, Statistical analysis, Vibrometry, Matrices, Fractional fourier transform, Interference (communication), Detection and tracking algorithms, Algorithm development, Radar

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PROCEEDINGS ARTICLE | May 5, 2011

Fast synthetic aperture radar imaging with a streamlined 2D fractional Fourier transform

Proc. SPIE. 8051, Algorithms for Synthetic Aperture Radar Imagery XVIII

KEYWORDS: Synthetic aperture radar, Convolution, Fractional fourier transform, Matrices, Radar imaging, Doppler effect, Algorithm development, Fourier transforms, Radar, Modulation

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PROCEEDINGS ARTICLE | May 4, 2010

Quantum dot infrared photodetectors with highly tunable spectral response for an algorithm-based spectrometer

Proc. SPIE. 7660, Infrared Technology and Applications XXXVI

KEYWORDS: Spectroscopy, Reconstruction algorithms, Optical filters, Long wavelength infrared, Gallium arsenide, Sensors, Bandpass filters, Infrared radiation, Quantum dots, Quantum well infrared photodetectors

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PROCEEDINGS ARTICLE | May 4, 2010

Dual-carrier multiplication high-gain MWIR strain layer superlattice impact ionization engineered avalanche photodiodes

Proc. SPIE. 7660, Infrared Technology and Applications XXXVI

KEYWORDS: Avalanche photodetectors, Ionization, Mid-IR, Superlattices, Signal to noise ratio, Avalanche photodiodes, Standard readout integrated circuits, Imaging arrays, Scattering, Receivers

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PROCEEDINGS ARTICLE | April 28, 2010

Modeling negative feedback in single-photon avalanche diodes

Proc. SPIE. 7681, Advanced Photon Counting Techniques IV

KEYWORDS: Resistors, Diodes, Stochastic processes, Avalanche photodetectors, Ionization, Monte Carlo methods, Quenching (fluorescence), Negative feedback, Avalanche photodiodes, Statistical analysis

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PROCEEDINGS ARTICLE | April 27, 2010

SAR-based vibration retrieval using the fractional Fourier transform in slow time

Proc. SPIE. 7669, Radar Sensor Technology XIV

KEYWORDS: Synthetic aperture radar, Fractional fourier transform, Modulation, Frequency modulation, Phase modulation, Antennas, Doppler effect, Phase shift keying, Signal to noise ratio, Data acquisition

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PROCEEDINGS ARTICLE | April 19, 2010

Estimation of vibration spectra including vibrating direction with synthetic aperture radar

Proc. SPIE. 7699, Algorithms for Synthetic Aperture Radar Imagery XVII

KEYWORDS: Error analysis, Synthetic aperture radar, Statistical analysis, Radar, Factor analysis, Signal to noise ratio, Doppler effect, Phase shifts, Affine motion model, Data modeling

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PROCEEDINGS ARTICLE | January 23, 2010

Model for passive quenching of SPADs

Proc. SPIE. 7608, Quantum Sensing and Nanophotonic Devices VII

KEYWORDS: Stochastic processes, Resistors, Diodes, Ionization, Avalanche photodetectors, Quenching (fluorescence), Monte Carlo methods, Negative feedback, Avalanche photodiodes, Sensors

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PROCEEDINGS ARTICLE | April 29, 2009

SAR vibrometry using fractional Fourier transform processing

Proc. SPIE. 7308, Radar Sensor Technology XIII

KEYWORDS: Synthetic aperture radar, Vibrometry, Fractional fourier transform, Reflectivity, Imaging systems, Spatial resolution, Signal processing, Microwave radiation, Time-frequency analysis, Antennas

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PROCEEDINGS ARTICLE | April 29, 2009

Demonstration of the quantum dot avalanche photodiode (QDAP)

Proc. SPIE. 7320, Advanced Photon Counting Techniques III

KEYWORDS: Avalanche photodetectors, Sensors, Gallium arsenide, Avalanche photodiodes, Quantum dots, Reflectivity, Amplifiers, Signal to noise ratio, Photons, Quantum well infrared photodetectors

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PROCEEDINGS ARTICLE | March 13, 2009

A Markov-random-field-based filter for speckle reduction in ultrasound imagery

Proc. SPIE. 7265, Medical Imaging 2009: Ultrasonic Imaging and Signal Processing

KEYWORDS: Speckle, Ultrasonography, Magnetorheological finishing, Medical imaging, Image filtering, Denoising, Heart, Interference (communication), Speckle pattern, Spatial resolution

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PROCEEDINGS ARTICLE | May 14, 2007

Nonuniformity correction algorithm based on a noise-cancellation system for infrared focal plane arrays

Proc. SPIE. 6542, Infrared Technology and Applications XXXIII

KEYWORDS: Sensors, Infrared imaging, Cameras, Nonuniformity corrections, Staring arrays, Infrared radiation, Optical filters, Finite impulse response filters, Calibration, Monte Carlo methods

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PROCEEDINGS ARTICLE | October 12, 2006

Equalized APD-based receiver for ultrafast optical communication system

Proc. SPIE. 6368, Optoelectronic Devices: Physics, Fabrication, and Application III

KEYWORDS: Receivers, Avalanche photodetectors, Signal detection, Optical communications, Binary data, Photons, Ultrafast phenomena, Telecommunications, Optical amplifiers, Avalanche photodiodes

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PROCEEDINGS ARTICLE | May 4, 2006

Analyzing spectral sensors with highly overlapping bands

Proc. SPIE. 6233, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XII

KEYWORDS: Sensors, Signal to noise ratio, Image processing, Space sensors, Interference (communication), Photodetectors, Spectral models, Algorithm development, Data processing, Image classification

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PROCEEDINGS ARTICLE | May 4, 2006

Feature selection for spectral sensors with overlapping noisy spectral bands

Proc. SPIE. 6233, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XII

KEYWORDS: Sensors, Signal to noise ratio, Space sensors, Feature selection, Feature extraction, Optical filters, Algorithm development, Reflectivity, Minerals, Vegetation

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PROCEEDINGS ARTICLE | November 18, 2005

Quantum-dot based avalanche photodiodes for mid-infrared sensing

Proc. SPIE. 6008, Nanosensing: Materials and Devices II

KEYWORDS: Signal to noise ratio, Avalanche photodetectors, Sensors, Gallium arsenide, Mid-IR, Avalanche photodiodes, Heterojunctions, Long wavelength infrared, Infrared sensors, Signal detection

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PROCEEDINGS ARTICLE | June 1, 2005

Optimized algorithm for spectral band selection for rock-type classification

Proc. SPIE. 5806, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XI

KEYWORDS: Signal to noise ratio, Minerals, Sensors, Image classification, Thermography, Statistical analysis, Algorithm development, Multispectral imaging, Principal component analysis, Vegetation

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PROCEEDINGS ARTICLE | June 1, 2005

Canonical correlation analysis for assessing the performance of adaptive spectral imagers

Proc. SPIE. 5806, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XI

KEYWORDS: Sensors, Space sensors, Signal to noise ratio, Imaging spectroscopy, Image processing, Imaging systems, Sensor performance, Photodetectors, Spectral models, Canonical correlation analysis

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PROCEEDINGS ARTICLE | May 19, 2005

Speckle reduction of SAR images using a physically based Markov random field model and simulated annealing

Proc. SPIE. 5808, Algorithms for Synthetic Aperture Radar Imagery XII

KEYWORDS: Speckle, Synthetic aperture radar, Image filtering, Magnetorheological finishing, Signal to noise ratio, Algorithms, Mathematical modeling, Interference (communication), Device simulation, Algorithm development

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PROCEEDINGS ARTICLE | December 29, 2004

Quantum dot detectors for mid-infrared sensing: bias-controlled spectral tuning and matched filtering

Proc. SPIE. 5593, Nanosensing: Materials and Devices

KEYWORDS: Sensors, Optical filters, Reconstruction algorithms, Signal to noise ratio, Detection and tracking algorithms, Quantum dots, Image filtering, FT-IR spectroscopy, Spectroscopy, Black bodies

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Quantum-dot infrared photodetectors (QDIPs), based on intersubband transitions in nanoscale self-assembled dots, are perceived as a promising technology for mid-infrared-regime sensing since they are based on a mature GaAs technology, are sensitive to normal incidence radiation, exhibit large quantum confined stark effect that can be exploited for hyperspectral imaging, and have lower dark currents than their quantum well counterparts. High detectivity (D* = 1.0E11 cmHz^1/2/W at 9 microns) QDIPs have been recently shown to exhibit broad spectral responses approximately 2-micron FWHM) with a bias-dependent shift in their peak wavelengths. This controllable, bias dependent spectral diversity, in conjunction with signal-processing strategies, allows us to extend the operation of the QDIP sensors to a new modality that enables us to achieve: (1) spectral tunability (single- or multi-color) in the range 2-12 microns in the presence of the QDIP's dark current; and (2) multispectral matched filtering in the same range. The spectral tuning is achieved by forming an optimal weighted sum of multiple photocurrent measurements, taken of the object to be probed, one for each bias in a set of prescribed operational biases. For each desired spectral response, the number and values of the prescribed biases and their associated weights are tailored so that the superposition response is as close as possible, in the mean-square-error sense, to the response of a sensor that is optically tuned to the desired spectrum. The spectral matching is achieved similarly but with a different criterion for selecting the weights and biases. They are selected, in conjunction with orthogonal-subspace-projection principles in hyperspectral classification, to nullify the interfering spectral signatures and maximize the signal-to noise ratio of the output. This, in turn, optimizes the classification of the objects according to their spectral signatures. Experimental results will be presented to demonstrate the QDIP sensor's capabilities in these new modalities. The effect of dark current noise on the spectral-tuning capability is particularly investigated. Examples of narrowband and wideband multispectral photocurrent synthesis as well as matched filtering are presented.

PROCEEDINGS ARTICLE | November 4, 2004

Multispectral rock-type separation and classification

Proc. SPIE. 5543, Infrared Spaceborne Remote Sensing XII

KEYWORDS: Statistical analysis, Minerals, Vegetation, Matrices, Feature extraction, Mahalanobis distance, Remote sensing, Distance measurement, Optical filters, Reflectivity

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PROCEEDINGS ARTICLE | November 4, 2004

Generalized algebraic algorithm for scene-based nonuniformity correction

Proc. SPIE. 5556, Photonic Devices and Algorithms for Computing VI

KEYWORDS: Sensors, Calibration, Detection and tracking algorithms, Nonuniformity corrections, Staring arrays, Algorithm development, Motion estimation, Infrared imaging, Error analysis, Infrared radiation

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PROCEEDINGS ARTICLE | November 2, 2004

An algebraic restoration method for estimating fixed-pattern noise in infrared imagery from a video sequence

Proc. SPIE. 5558, Applications of Digital Image Processing XXVII

KEYWORDS: Calibration, Sensors, Video, Cameras, Infrared imaging, Infrared radiation, Motion models, Nonuniformity corrections, Staring arrays, Matrices

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PROCEEDINGS ARTICLE | October 15, 2004

Real-time implementation of matched filtering algorithms using adaptive focal-plane array technology

Proc. SPIE. 5546, Imaging Spectrometry X

KEYWORDS: Sensors, Space sensors, Signal to noise ratio, Staring arrays, Infrared radiation, Photodetectors, Quantum well infrared photodetectors, Infrared photography, Image processing, Spectral resolution

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PROCEEDINGS ARTICLE | August 22, 2003

Algorithm for radiometrically accurate nonuniformity correction with arbitrary scene motion

Proc. SPIE. 5076, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XIV

KEYWORDS: Calibration, Sensors, Nonuniformity corrections, Staring arrays, Detection and tracking algorithms, Motion models, Error analysis, Cameras, Infrared imaging, Motion estimation

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PROCEEDINGS ARTICLE | August 14, 2003

High speed heterostructure avalanche photodiodes

Proc. SPIE. 5246, Active and Passive Optical Components for WDM Communications III

KEYWORDS: Avalanche photodetectors, Ionization, Heterojunctions, Gallium arsenide, Avalanche photodiodes, Receivers, Denoising, Waveguides, Optical amplifiers, Ultrafast phenomena

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PROCEEDINGS ARTICLE | January 23, 2003

Radiometrically calibrated scene-based nonuniformity correction for infrared array sensors

Proc. SPIE. 4820, Infrared Technology and Applications XXVIII

KEYWORDS: Calibration, Sensors, Detection and tracking algorithms, Nonuniformity corrections, Staring arrays, Infrared sensors, Infrared radiation, Infrared imaging, Motion models, Photodetectors

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SPIE Journal Paper | April 1, 2002

Displacement co-occurance statistics for binary digital images

Chen, Zikuan , Karim, Mohammad , Hayat, Majeed

JEI Vol. 11 Issue 02

KEYWORDS: Binary data, Scattering, Image segmentation, Statistical analysis, Statistical modeling, Ronchi rulings, Image analysis, Matrices, Image processing, Image classification

PROCEEDINGS ARTICLE | September 10, 2001

Algebraic scene-based nonuniformity correction in focal plane arrays

Proc. SPIE. 4372, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XII

KEYWORDS: Infrared imaging, Infrared radiation, Sensors, Algorithm development, Detection and tracking algorithms, Staring arrays, Nonuniformity corrections, Error analysis, Imaging systems, Tolerancing

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PROCEEDINGS ARTICLE | July 9, 2001

Dead-space theory predictions of excess-noise factor, breakdown voltage, and frequency response for thin avalanche photodiodes

Proc. SPIE. 4283, Physics and Simulation of Optoelectronic Devices IX

KEYWORDS: Ionization, Avalanche photodetectors, Electrons, Gallium arsenide, Avalanche photodiodes, Instrument modeling, Data modeling, Electro optical modeling, Monte Carlo methods, Information operations

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PROCEEDINGS ARTICLE | July 17, 2000

Kalman-filtering approach for nonuniformity correction in focal plane array sensors

Proc. SPIE. 4030, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XI

KEYWORDS: Sensors, Filtering (signal processing), Nonuniformity corrections, Staring arrays, Data modeling, Algorithm development, Infrared radiation, Error analysis, Detection and tracking algorithms, Infrared imaging

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PROCEEDINGS ARTICLE | July 17, 2000

Efficient projection-based technique for registering images in the presence of fixed-pattern noise

Proc. SPIE. 4044, Hybrid Image and Signal Processing VII

KEYWORDS: Signal to noise ratio, Image registration, Sensors, Interference (communication), Image processing, Video, Fourier transforms, Computer simulations, Statistical analysis, Signal processing

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PROCEEDINGS ARTICLE | October 18, 1999

Nonuniformity correction for improved registration and high-resolution image reconstruction in IR imagery

Proc. SPIE. 3808, Applications of Digital Image Processing XXII

KEYWORDS: Nonuniformity corrections, Image registration, Image restoration, Sensors, Reconstruction algorithms, Staring arrays, Infrared imaging, Forward looking infrared, Motion estimation, Image processing

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SPIE Journal Paper | May 1, 1999

Effects of band-pass sampling on joint transform correlation

Chen, Zikuan , Karim, Mohammad , Hayat, Majeed

OE Vol. 38 Issue 05

KEYWORDS: Joint transforms, Fourier transforms, Spatial light modulators, Optical engineering, Charge-coupled devices, CCD cameras, Optical correlators, Optical filters, Signal processing, Digital signal processing

SPIE Journal Paper | May 1, 1999

Elimination of higher order aliasings by multiple interlaced sampling

Chen, Zikuan , Karim, Mohammad , Hayat, Majeed

OE Vol. 38 Issue 05

KEYWORDS: Image restoration, Fourier transforms, Image processing, Linear filtering, Optical engineering, Digital image processing, Subpixel image restoration, Commercial off the shelf technology, Image resolution, Electrical engineering

PROCEEDINGS ARTICLE | August 26, 1998

Model-based real-time nonuniformity correction in focal plane array detectors

Proc. SPIE. 3377, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing IX

KEYWORDS: Image filtering, Sensors, Data modeling, Statistical analysis, Staring arrays, Optical filters, Algorithm development, Nonuniformity corrections, Statistical modeling, Detection and tracking algorithms

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PROCEEDINGS ARTICLE | July 22, 1997

Detection of signals modeled by interaction point processes using a Poisson approximation

Proc. SPIE. 3079, Detection and Remediation Technologies for Mines and Minelike Targets II

KEYWORDS: Signal processing, Signal detection, Statistical analysis, Monte Carlo methods, Image processing, Statistical modeling, Error analysis, Solids, Electro optical modeling, Performance modeling

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PROCEEDINGS ARTICLE | October 25, 1996

Reduction of quantum noise in image estimation by use of twin-photon beams

Proc. SPIE. 2827, Digital Image Recovery and Synthesis III

KEYWORDS: Photons, Transmittance, Error analysis, Quantum efficiency, Image analysis, Beam analyzers, Image transmission, Sensors, Computer engineering, Transparency

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