Prof. Mohammad Ataul Karim Profile

Prof. Mohammad Ataul Karim

Professor at University of Massachusetts Dartmouth

SPIE Involvement:

Conference Program Committee | Author

Websites:

Personal Website

Publications (102)

SPIE Journal Paper | 12 July 2016

Hybrid edge and feature-based single-image superresolution

Mohammad Islam, Mohammed Islam, Vijayan Asari, Mohammad Karim

JEI, Vol. 25, Issue 04, 043005, (July 2016) https://doi.org/10.1117/12.10.1117/1.JEI.25.4.043005

KEYWORDS: Super resolution, Image resolution, Image fusion, Image processing, Image analysis, Resolution enhancement technologies, Matrices, Image enhancement, Fourier transforms, Lawrencium

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Proceedings Article | 20 April 2016 Paper

A new clustering algorithm for scanning electron microscope images

Amr Yousef, Prakash Duraisamy, Mohammad Karim

Proceedings Volume 9845, 984509 (2016) https://doi.org/10.1117/12.2224251

KEYWORDS: Scanning electron microscopy, Electron microscopes, Image segmentation, Expectation maximization algorithms, Data modeling, Sensors

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Proceedings Article | 20 April 2015 Paper

An improved algorithm for pedestrian detection

Amr Yousef, Prakash Duraisamy, Mohammad Karim

Proceedings Volume 9477, 94770D (2015) https://doi.org/10.1117/12.2177537

KEYWORDS: Matrices, Detection and tracking algorithms, Shape analysis, Raster graphics, Wavelets, Computer simulations, Sensors, Electronics, Computer science, Electrical engineering

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SPIE Journal Paper | 18 September 2013

Shoreline extraction from light detection and ranging digital elevation model data and aerial images

Amr Yousef, Khan Iftekharuddin, Mohammad Karim

OE, Vol. 53, Issue 01, 011006, (September 2013) https://doi.org/10.1117/12.10.1117/1.OE.53.1.011006

KEYWORDS: LIDAR, Image segmentation, Data modeling, Coastal modeling, Hough transforms, Optical engineering, RGB color model, Data conversion, Image fusion, Monte Carlo methods

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Proceedings Article | 31 May 2013 Paper

Toward aerosols LiDAR scattering plots clustering and analysis

Amr Yousef, Khan Iftekharuddin, Mohammad Karim

Proceedings Volume 8718, 87180F (2013) https://doi.org/10.1117/12.2015807

KEYWORDS: Aerosols, LIDAR, Scattering, Atmospheric particles, Signal to noise ratio, Computing systems, Light scattering, Phase modulation, Fuzzy logic, Receivers

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Proceedings Article | 29 April 2013 Paper

A new morphology algorithm for shoreline extraction from DEM data

Amr Yousef, Khan Iftekharuddin, Mohammad Karim

Proceedings Volume 8748, 87480D (2013) https://doi.org/10.1117/12.2015801

KEYWORDS: LIDAR, Image segmentation, Binary data, Data modeling, Hough transforms, Visualization, Coastal modeling, Clouds, Bridges, Photography

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Proceedings Article | 7 May 2012 Paper

Toward automatic subpixel registration of unmanned airborne vehicle images

Amr Hussein Yousef, Jiang Li, Mohammad Karim

Proceedings Volume 8399, 839902 (2012) https://doi.org/10.1117/12.918935

KEYWORDS: Unmanned aerial vehicles, Image registration, Reconstruction algorithms, Fourier transforms, Image processing, Error analysis, Matrix multiplication, Lithium, Computer vision technology, Optical sensors

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Proceedings Article | 7 May 2012 Paper

Fast stochastic Wiener filter for superresolution image restoration with information theoretic visual quality assessment

Amr Yousef, Jiang Li, Mohammad Karim

Proceedings Volume 8399, 839906 (2012) https://doi.org/10.1117/12.918938

KEYWORDS: Filtering (signal processing), Image fusion, Visualization, Image quality, Image filtering, Lawrencium, Image registration, Signal to noise ratio, Image restoration, Image processing

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Proceedings Article | 23 April 2012 Paper

Target tracking using nonlinear reference phase-encoded joint transform correlation

Mohammed Islam, Vijayan Asari, Mohammad Karim, Mohammad Alam

Proceedings Volume 8398, 83980B (2012) https://doi.org/10.1117/12.919786

KEYWORDS: Target detection, Joint transforms, Fourier transforms, Nonlinear filtering, Optical filters, Image processing, Target recognition, Nonlinear optics, Surgery, Optical pattern recognition

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SPIE Journal Paper | 2 April 2012

Mathematical model development of super-resolution image Wiener restoration

Amr Yousef, Jiang Li, Mohammad Karim

OE, Vol. 51, Issue 03, 037007, (April 2012) https://doi.org/10.1117/12.10.1117/1.OE.51.3.037007

KEYWORDS: Lawrencium, Filtering (signal processing), Signal to noise ratio, Image filtering, Image quality, Mathematical modeling, Super resolution, Image restoration, Image processing, Visualization

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Proceedings Article | 24 September 2011 Paper

3D face reconstruction from limited images based on differential evolution

Qun Wang, Jiang Li, Vijayan Asari, Mohammad Karim

Proceedings Volume 8135, 813518 (2011) https://doi.org/10.1117/12.894253

KEYWORDS: 3D modeling, 3D image processing, Data modeling, Image processing, Principal component analysis, Databases, 3D image reconstruction, Reconstruction algorithms, Cameras, Light sources and illumination

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Proceedings Article | 24 September 2011 Paper

On the visual quality enhancement of super-resolution images

Amr Hussein Yousef, Jiang Li, Mohammad Karim

Proceedings Volume 8135, 81350Z (2011) https://doi.org/10.1117/12.889291

KEYWORDS: Lawrencium, Visualization, Image filtering, Image quality, Image processing, Electronic filtering, Image resolution, Filtering (signal processing), Super resolution, Image registration

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Proceedings Article | 13 September 2011 Paper

Distortion-invariant face recognition using multiple phase-shifted reference-based joint transform correlation technique

Mohammed Nazrul Islam, K. Vijayan Asari, Mohammad Karim

Proceedings Volume 8134, 813405 (2011) https://doi.org/10.1117/12.893944

KEYWORDS: Facial recognition systems, Joint transforms, Target recognition, Computer simulations, Phase shifts, Distortion, Fourier transforms, Image processing, Image filtering, Optical filters

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Proceedings Article | 26 July 2011 Paper

2D face database diversification based on 3D face modeling

Qun Wang, Jiang Li, Vijayan Asari, Mohammad Karim

Proceedings Volume 8001, 80010M (2011) https://doi.org/10.1117/12.894605

KEYWORDS: 3D modeling, Databases, Data modeling, 3D image processing, Image processing, Facial recognition systems, Photography, Optimization (mathematics), Computer graphics, Reflectivity

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Proceedings Article | 3 June 2011 Paper

On the restoration of the microscanned images captured from unmanned airborne vehicles

Amr Yousef, Zia-ur Rahman, Mohammad Karim

Proceedings Volume 8056, 80560D (2011) https://doi.org/10.1117/12.884038

KEYWORDS: Unmanned aerial vehicles, Image processing, Image filtering, Image resolution, Filtering (signal processing), Fourier transforms, Visualization, Spatial resolution, Image quality, Super resolution

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SPIE Journal Paper | 1 June 2011

Optical cryptographic system employing multiple reference-based joint transform correlation technique

Mohammed Nazrul Islam, Mohammad Ataul Karim, Mohammad Showkat Alam, K. Vijayan Asari

OE, Vol. 50, Issue 06, 068202, (June 2011) https://doi.org/10.1117/12.10.1117/1.3591120

KEYWORDS: Image encryption, Image compression, Computer security, Information security, Binary data, Joint transforms, Optical engineering, Image filtering, Optical image encryption, Computer simulations

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Proceedings Article | 26 April 2011 Paper

Distortion-invariant color pattern recognition using multiple phase-shifted-reference-based joint transform correlation incorporating synthetic discriminant function

Mohammed Nazrul Islam, Mohammad Karim

Proceedings Volume 8055, 80550B (2011) https://doi.org/10.1117/12.883575

KEYWORDS: Pattern recognition, Target detection, Joint transforms, Optical pattern recognition, Target recognition, Phase shifts, Image processing, Image enhancement, Distortion, Computer simulations

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Proceedings Article | 13 May 2010 Paper

Optical security system using multiple-reference joint transform correlation

M. Islam, M. Karim, M. Alam, K. Asari

Proceedings Volume 7696, 76961O (2010) https://doi.org/10.1117/12.851691

KEYWORDS: Computer security, Image encryption, Information security, Joint transforms, Binary data, Fourier transforms, Phase shifts, Computing systems, Computer simulations, Image filtering

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Proceedings Article | 1 September 2009 Paper

Long range face recognition using shifted phase joint transform correlation technique

Trisha Ahmed, Mohammed Nazrul Islam, K. Vijayan Asari, Mohammad Karim

Proceedings Volume 7442, 74420R (2009) https://doi.org/10.1117/12.828650

KEYWORDS: Image enhancement, Facial recognition systems, Image compression, Detection and tracking algorithms, Image processing, Phase shifts, Joint transforms, Image contrast enhancement, Target recognition, Light sources and illumination

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Proceedings Article | 13 April 2009 Paper

Distortion invariant pattern recognition using neural network based shifted phase-encoded joint transform correlation

Mohammed Nazrul Islam, Md. Habibul Islam, K. Vijayan Asari, Mohammad Karim, Mohammad Alam

Proceedings Volume 7340, 734009 (2009) https://doi.org/10.1117/12.819530

KEYWORDS: Neural networks, Phase shifts, Joint transforms, Target detection, Image processing, Distortion invariant pattern recognition, Distortion, Pattern recognition, Composites, Target recognition

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Proceedings Article | 3 February 2009 Paper

Anomaly based vessel detection in visible and infrared images

Mohammad Moinul Islam, Mohammed Nazrul Islam, K. Vijayan Asari, Mohammad Karim

Proceedings Volume 7251, 72510B (2009) https://doi.org/10.1117/12.805513

KEYWORDS: Infrared imaging, Infrared radiation, Visible radiation, Sensors, Infrared detectors, Image segmentation, Image filtering, Algorithm development, Optical filters, Gaussian filters

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SPIE Journal Paper | 1 October 2008

Distortion-invariant pattern recognition using synthetic discriminant function-based shifted phase-encoded joint transform correlator

Mohammed Nazrul Islam, Inder Purohit, Vijayan Asari, Mohammad Karim

OE, Vol. 47, Issue 10, 108201, (October 2008) https://doi.org/10.1117/12.10.1117/1.3000589

KEYWORDS: Target detection, Distortion invariant pattern recognition, Phase shifts, Composites, Optical engineering, Joint transforms, Fourier transforms, Pattern recognition, Image processing, Computer simulations

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Proceedings Article | 3 September 2008 Paper

Distortion-invariant target detection using shifted-reference joint transform correlator

Mohammed Islam, K. Asari, Mohammad Karim, Mohammad Alam

Proceedings Volume 7072, 70721K (2008) https://doi.org/10.1117/12.804163

KEYWORDS: Target detection, Target recognition, Joint transforms, Pattern recognition, Binary data, Phase shifts, Computer simulations, Optical filters, Fourier transforms, Image processing

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SPIE Journal Paper | 1 September 2008

Optical pattern recognition using multiple phase-shifted-reference fringe-adjusted joint transform correlation

Mohammed Nazrul Islam, Vijayan Asari, Mohammad Karim

OE, Vol. 47, Issue 09, 097204, (September 2008) https://doi.org/10.1117/12.10.1117/1.2981514

KEYWORDS: Optical pattern recognition, Target recognition, Target detection, Pattern recognition, Joint transforms, Optical engineering, Phase shifts, Binary data, Computer simulations, Fourier transforms

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Proceedings Article | 3 April 2008 Paper

A modular approach on adaptive thresholding for extraction of mammalian cell regions from bioelectric images in complex lighting environments

Inder Purohit, Praveen Sankaran, K. Vijayan Asari, Mohammad Karim

Proceedings Volume 6978, 697807 (2008) https://doi.org/10.1117/12.777852

KEYWORDS: Image segmentation, Image processing algorithms and systems, Light sources and illumination, Image filtering, Binary data, Image contrast enhancement, Image processing, Electrodes, Metals, Cancer

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SPIE Journal Paper | 1 April 2008

Optical security system employing quadrature multiplexing

Mohammed Islam, Mohammad Alam, Mohammad Karim

OE, Vol. 47, Issue 04, 048201, (April 2008) https://doi.org/10.1117/12.10.1117/1.2904028

KEYWORDS: Multiplexing, Computer security, Image encryption, Binary data, Computer programming, Signal to noise ratio, Information security, Signal processing, Data storage, Computing systems

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Proceedings Article | 17 March 2008 Paper

Pattern recognition using Gaussian-filtered, shifted phase-encoded fringe-adjusted joint transform correlation

Mohammed Nazrul Islam, Mohammad Alam, K. Vijayan Asari, Mohammad Karim

Proceedings Volume 6977, 69770A (2008) https://doi.org/10.1117/12.776954

KEYWORDS: Gaussian filters, Image filtering, Pattern recognition, Joint transforms, Roentgenium, Phase shifts, Fourier transforms, Target recognition, Detection and tracking algorithms, Optical pattern recognition

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SPIE Journal Paper | 1 December 2005

Efficient two-step digit-set-restricted modified signed-digit algorithm based on optoelectronic shared content-addressable memory

Feng Qian, Guoqiang Li, Mohammad Karim

OE, Vol. 44, Issue 12, 125201, (December 2005) https://doi.org/10.1117/12.10.1117/1.2148920

KEYWORDS: Optoelectronics, Content addressable memory, Optical correlators, Spatial light modulators, Lithium, Optical engineering, Symbolic substitution, Algorithm development, Computer programming, LCDs

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SPIE Journal Paper | 1 August 2004

Modification of standard image compression methods for correlation-based pattern recognition

Mo Chen, Shuqun Zhang, Mohammad Karim

OE, Vol. 43, Issue 08, (August 2004) https://doi.org/10.1117/12.10.1117/1.1765664

KEYWORDS: Image compression, Pattern recognition, Detection and tracking algorithms, Quantization, Image quality, Wavelets, Visualization, Image processing, Denoising, Image filtering

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SPIE Journal Paper | 1 August 2004

Automatic target tracking for unmanned aerial vehicle video annotation

Shuqun Zhang, Mohammad Karim

OE, Vol. 43, Issue 08, (August 2004) https://doi.org/10.1117/12.10.1117/1.1765665

KEYWORDS: Video, Detection and tracking algorithms, Unmanned aerial vehicles, Image segmentation, Cameras, Motion estimation, Video surveillance, Automatic tracking, Motion models, Motion detection

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SPIE Journal Paper | 1 August 2004 Open Access

Advances in Pattern Recognition Algorithms, Architectures, and Devices

Mohammad Alam, Mohammad Karim

OE, Vol. 43, Issue 08, (August 2004) https://doi.org/10.1117/12.10.1117/1.1787532

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Proceedings Article | 12 December 2003 Paper

Digit-set-restricted modified signed-digit arithmetic based on optoelectronic shared content-addressable memory

Feng Qian, Guoqiang Li, Mohammad Alam, Mohammad Karim

Proceedings Volume 5201, (2003) https://doi.org/10.1117/12.505917

KEYWORDS: Optoelectronics, Content addressable memory, Optical correlators, Holograms, Computer programming, Lithium, Symbolic substitution, Spatial light modulators, Photography, Binary data

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Proceedings Article | 6 August 2003 Paper

Content-based texture image retrieval using cepstral features

Xue-Wen Chen, David Casasent, Mohammad Karim, Mohammad Alam

Proceedings Volume 5106, (2003) https://doi.org/10.1117/12.501425

KEYWORDS: Image retrieval, Feature extraction, Content based image retrieval, Databases, Convolution, Computer engineering, Visualization, Image segmentation, Optical filters, Gaussian filters

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SPIE Journal Paper | 1 April 2002

Displacement co-occurance statistics for binary digital images

Zikuan Chen, Mohammad Karim, Majeed Hayat

JEI, Vol. 11, Issue 02, (April 2002) https://doi.org/10.1117/12.10.1117/1.1455012

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

SPIE Journal Paper | 1 January 2002

Fractional correlation filter for fuzzy associative memories

ShuQun Zhang, Mohammad Karim

OE, Vol. 41, Issue 01, (January 2002) https://doi.org/10.1117/12.10.1117/1.1428294

KEYWORDS: Fuzzy logic, Image filtering, Optical correlators, Content addressable memory, Fourier transforms, Computer simulations, Joint transforms, Optical filters, Optical pattern recognition, Fractional fourier transform

SPIE Journal Paper | 1 January 2002 Open Access

Advances in Pattern Recognition Techniques, Devices, and Algorithms

Mohammad Alam, Mohammad Karim

OE, Vol. 41, Issue 01, (January 2002) https://doi.org/10.1117/12.10.1117/1.1446465

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SPIE Journal Paper | 1 November 2001

Parallel fuzzy interference and logic processing with a joint transform correlator

ShuQun Zhang, Mohammad Karim

OE, Vol. 40, Issue 11, (November 2001) https://doi.org/10.1117/12.10.1117/1.1409337

KEYWORDS: Fuzzy logic, Fuzzy systems, Logic, Joint transforms, Optical correlators, Pattern recognition, Optical engineering, Optical alignment, Image processing, Image filtering

Proceedings Article | 28 December 2000 Paper

Restoration of impulse noise corrupted images based on gradients

ShuQun Zhang, Mohammad Karim

Proceedings Volume 4115, (2000) https://doi.org/10.1117/12.411596

KEYWORDS: Sensors, Digital filtering, Switching, Image filtering, Detection and tracking algorithms, Computer simulations, Distortion, Convolution, Bridges, Computer science

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Proceedings Article | 29 November 2000 Paper

Optical morphological correlation based on visual area coding technique

ShuQun Zhang, Mohammad Karim

Proceedings Volume 4114, (2000) https://doi.org/10.1117/12.408563

KEYWORDS: Binary data, Visualization, Computer simulations, Databases, Optical correlators, Visual optics, Optical pattern recognition, Singular optics, Joint transforms, Target detection

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SPIE Journal Paper | 1 September 2000

Oversampled optical subband decomposition

Zikuan Chen, Mohammad Karim

OE, Vol. 39, Issue 09, (September 2000) https://doi.org/10.1117/12.10.1117/1.1287993

KEYWORDS: Wavelets, Charge-coupled devices, Wavelet transforms, Interference (communication), Discrete wavelet transforms, Optical engineering, Optical filters, Signal detection, Signal processing, Atrial fibrillation

SPIE Journal Paper | 1 May 2000

Forest representation of wavelet transform and feature detection

Zikuan Chen, Mohammad Karim

OE, Vol. 39, Issue 05, (May 2000) https://doi.org/10.1117/12.10.1117/1.602477

KEYWORDS: Wavelet transforms, Wave propagation, Wavelets, Head, Optical engineering, Signal detection, Algorithm development, Edge detection, Signal processing, Image compression

SPIE Journal Paper | 1 May 2000

Normalized joint transform correlation for target recognition

ShuQun Zhang, Mohammad Karim

OE, Vol. 39, Issue 05, (May 2000) https://doi.org/10.1117/12.10.1117/1.602490

KEYWORDS: Target recognition, Joint transforms, Optical correlators, Binary data, Target detection, Computer simulations, Optical engineering, Spatial light modulators, Image filtering, Phase only filters

SPIE Journal Paper | 1 May 2000 Open Access

Guest Editorial: Special Section on Target Recognition Techniques

Mohammad Alam, Mohammad Karim

OE, Vol. 39, Issue 05, (May 2000) https://doi.org/10.1117/12.10.1117/1.602472

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Proceedings Article | 1 October 1999 Paper

Optical implementation of hit-miss transform based on phase encoding

ShuQun Zhang, Mohammad Karim

Proceedings Volume 3805, (1999) https://doi.org/10.1117/12.363984

KEYWORDS: Optical correlators, Binary data, Computer programming, Joint transforms, Image processing, Spatial light modulators, Selenium, Wavelet transforms, Wavelets, Mathematical morphology

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Proceedings Article | 1 October 1999 Paper

Performance analysis of optical nonlinear morphological correlation under unknown illumination conditions

ShuQun Zhang, Mohammad Karim

Proceedings Volume 3804, (1999) https://doi.org/10.1117/12.363956

KEYWORDS: Nonlinear optics, Computer simulations, Pattern recognition, Binary data, Target detection, Phase only filters, Signal detection, Computer engineering, Optical filters, Target recognition

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Proceedings Article | 1 October 1999 Paper

Parallel optical fuzzy logic inference using improved fuzzy associative memories

ShuQun Zhang, Mohammad Karim

Proceedings Volume 3805, (1999) https://doi.org/10.1117/12.363987

KEYWORDS: Fuzzy logic, Fuzzy systems, Spatial light modulators, Content addressable memory, Analog electronics, Optoelectronics, Computing systems, Signal processing, Image processing, Matrices

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SPIE Journal Paper | 1 May 1999

Effects of band-pass sampling on joint transform correlation

Zikuan Chen, Mohammad Karim, Majeed Hayat

OE, Vol. 38, Issue 05, (May 1999) https://doi.org/10.1117/12.10.1117/1.602267

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 | 1 May 1999

Elimination of higher order aliasings by multiple interlaced sampling

Zikuan Chen, Mohammad Karim, Majeed Hayat

OE, Vol. 38, Issue 05, (May 1999) https://doi.org/10.1117/12.10.1117/1.602282

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

SPIE Journal Paper | 1 April 1999

Velocital information feature for charting spatio-temporal changes in digital image sequences

Gregory Power, Mohammad Karim, Farid Ahmed

JEI, Vol. 8, Issue 02, (April 1999) https://doi.org/10.1117/12.10.1117/1.482695

KEYWORDS: Image quality, Image compression, Digital imaging, Image transmission, Infrared radiation, Infrared imaging, Quantization, Optical flow, Image analysis, Image filtering

SPIE Journal Paper | 1 March 1999

Optical arithmetic processing using improved redundant binary algorithms

ShuQun Zhang, Mohammad Karim

OE, Vol. 38, Issue 03, (March 1999) https://doi.org/10.1117/12.10.1117/1.602117

KEYWORDS: Binary data, Logic, Symbolic substitution, Computer programming, Sensors, Optical logic, Spatial light modulators, Optical engineering, Superposition, Logic devices

SPIE Journal Paper | 1 March 1999

Programmable modified-signed-digit addition module based on binary logic gates

ShuQun Zhang, Mohammad Karim

OE, Vol. 38, Issue 03, (March 1999) https://doi.org/10.1117/12.10.1117/1.602122

KEYWORDS: Binary data, Logic, Computer programming, Transform theory, Logic devices, Spatial light modulators, Prisms, Detector arrays, Optical computing, Computing systems

SPIE Journal Paper | 1 January 1999

High-security optical integrated stream ciphers

ShuQun Zhang, Mohammad Karim

OE, Vol. 38, Issue 01, (January 1999) https://doi.org/10.1117/12.10.1117/1.602057

KEYWORDS: Computer security, Integrated optics, Logic, Image encryption, Binary data, Computer programming, Optical signal processing, Computer simulations, Beam splitters, Optical correlators

SPIE Journal Paper | 1 January 1999

Using the joint transform correlator as the feature extractor for the nearest neighbor classifier

Boon Soon, Mohammad Karim, Mohammad Alam

OE, Vol. 38, Issue 01, (January 1999) https://doi.org/10.1117/12.10.1117/1.602059

KEYWORDS: Optical correlators, Joint transforms, Information security, Optoelectronics, Tolerancing, Optical engineering, Network security, Fourier transforms, Image processing, Signal to noise ratio

Proceedings Article | 28 December 1998 Paper

Optical security verification for blurred fingerprints

Boon Soon, Mohammad Karim, Mohammad Alam

Proceedings Volume 3575, (1998) https://doi.org/10.1117/12.334988

KEYWORDS: Fourier transforms, Optical correlators, Image filtering, Joint transforms, Imaging systems, Computing systems, Spatial light modulators, Image restoration, Signal to noise ratio, Computer simulations

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Proceedings Article | 5 November 1998 Paper

Automatic removal of poor-quality images from digital image sequences

Gregory Power, Mohammad Karim

Proceedings Volume 3431, (1998) https://doi.org/10.1117/12.330188

KEYWORDS: Image quality, Infrared imaging, Infrared radiation, Image filtering, Digital filtering, Machine vision, Detection and tracking algorithms, Optical flow, Reconnaissance, Image enhancement

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Proceedings Article | 3 November 1998 Paper

Nonsymmetric AlGaN directional coupler switch analysis

Antonio Crespo, Mohammad Karim

Proceedings Volume 3463, (1998) https://doi.org/10.1117/12.330397

KEYWORDS: Waveguides, Directional couplers, Gallium nitride, Switches, Electro optics, Crystals, Refraction, Modulation, Optical interconnects, Integrated optics

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Proceedings Article | 1 October 1998 Paper

Charting image artifacts in digital image sequences using velocital information content

Gregory Power, Mohammad Karim, Farid Ahmed

Proceedings Volume 3460, (1998) https://doi.org/10.1117/12.323220

KEYWORDS: Image quality, Image transmission, Digital imaging, Image compression, Image analysis, Image processing, Information technology, Optical flow, Analog electronics, Imaging systems

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Proceedings Article | 15 September 1998 Paper

Determining a confidence factor for automatic target recognition based on image sequence quality

Gregory Power, Mohammad Karim

Proceedings Volume 3370, (1998) https://doi.org/10.1117/12.321819

KEYWORDS: Image quality, Automatic target recognition, Detection and tracking algorithms, Image transmission, Sensors, Image sensors, Image processing, Analog electronics, Digital imaging, Signal to noise ratio

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SPIE Journal Paper | 1 March 1998

Multiobject detection of targets with fine details, scale and translation variations

S. Diab, Mohammad Karim, Khan Iftekharuddin

OE, Vol. 37, Issue 03, (March 1998) https://doi.org/10.1117/12.10.1117/1.601921

KEYWORDS: Target detection, Detection and tracking algorithms, Neural networks, Neurons, Automatic target recognition, Target recognition, Feature extraction, Image processing, Optical engineering, Algorithm development

SPIE Journal Paper | 1 March 1998 Open Access

Guest Editorial: Special Section on Advances in Recognition Techniques, Part 2

Mohammad Karim, Mohammad Alam

OE, Vol. 37, Issue 03, (March 1998) https://doi.org/10.1117/12.10.1117/1.601649

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SPIE Journal Paper | 1 January 1998

Distortion-invariant fractional power fringe-adjusted joint tranform correlation

Xue-Wen Chen, Mohammad Karim, Mohammad Alam

OE, Vol. 37, Issue 01, (January 1998) https://doi.org/10.1117/12.10.1117/1.601840

KEYWORDS: Joint transforms, Electronic filtering, Phase only filters, Fourier transforms, Distortion, Computer simulations, Binary data, Image filtering, Optical engineering, Spatial light modulators

SPIE Journal Paper | 1 January 1998

Multireference joint transform correlator for distortion estimation

Farid Ahmed, Mohammad Alam, Mohammad Karim

OE, Vol. 37, Issue 01, (January 1998) https://doi.org/10.1117/12.10.1117/1.601853

KEYWORDS: Distortion, Composites, Joint transforms, Optical correlators, Wavelets, Fourier transforms, Superposition, Modulation, Phase only filters, Optical engineering

SPIE Journal Paper | 1 January 1998 Open Access

Guest Editorial: Special Section on Advances in Recognition Techniques, Part 1

Mohammad Karim, Mohammad Alam

OE, Vol. 37, Issue 01, (January 1998) https://doi.org/10.1117/12.10.1117/1.601604

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SPIE Journal Paper | 1 October 1997

Self-referenced two-fiber sensor system for microdisplacement measurement

D.-X. Wang, W. Anderson, Mohammad Karim, Yao Li

OE, Vol. 36, Issue 10, (October 1997) https://doi.org/10.1117/12.10.1117/1.601508

KEYWORDS: Sensors, Diffraction, Fiber optics sensors, Light, Multimode fibers, Distance measurement, Diffraction gratings, Optical engineering, Temperature metrology, Spherical lenses

Proceedings Article | 23 June 1997 Paper

Scale- and translation-invariant detection of targets varying in fine details

S. Diab, Mohammad Karim, Khan Iftekharuddin

Proceedings Volume 3069, (1997) https://doi.org/10.1117/12.277114

KEYWORDS: Detection and tracking algorithms, Target detection, Neural networks, Image processing, Algorithm development, Target recognition, Automatic target recognition, Neurons, Quantization, Evolutionary algorithms

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Proceedings Article | 27 March 1997 Paper

Scale-invariant fringe-adjusted joint transform correlation

Mohammad Alam, Xue-Wen Chen, Mohammad Karim

Proceedings Volume 3073, (1997) https://doi.org/10.1117/12.270375

KEYWORDS: Joint transforms, Optical correlators, Binary data, Fourier transforms, Computer simulations, Spatial light modulators, Optical pattern recognition, Signal to noise ratio, Lithium, Complex systems

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SPIE Journal Paper | 1 March 1997

Self-referenced fiber optic sensor performance for microdisplacement measurement

Dong-Xue Wang, Mohammad Karim, Yao Li

OE, Vol. 36, Issue 03, (March 1997) https://doi.org/10.1117/12.10.1117/1.601137

KEYWORDS: Fiber optics sensors, Diffraction, Sensors, Diffraction gratings, Lithium, Multimode fibers, Distance measurement, Light, Near field diffraction, Spherical lenses

Proceedings Article | 31 December 1996 Paper

Modulation function of self-referenced fiber optic sensor for microdisplacement measurement

Dong-Xue Wang, Mohammad Karim, Yao Li

Proceedings Volume 2866, (1996) https://doi.org/10.1117/12.263031

KEYWORDS: Fiber optics sensors, Diffraction, Sensors, Modulation, Diffraction gratings, Distance measurement, Multimode fibers, Light sources, Light, Spherical lenses

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SPIE Journal Paper | 1 July 1996

Wavelet preprocessed amplitude-modulated phase-only filter for recognition applications

Khan Iftekharuddin, Theresa Tuthill, Mohammad Karim, Kanaan Jemili

OE, Vol. 35, Issue 07, (July 1996) https://doi.org/10.1117/12.10.1117/1.600764

SPIE Journal Paper | 1 April 1996

Rotation-invariant target recognition using an amplitude-coupled minimum-average correlation-energy filter

Khan Iftekharuddin, Farid Ahmed, Mohammad Karim

OE, Vol. 35, Issue 04, (April 1996) https://doi.org/10.1117/12.10.1117/1.600717

KEYWORDS: Detection and tracking algorithms, Image filtering, Synthetic aperture radar, Optical filters, Target recognition, Phase only filters, Automatic target recognition, Optical correlators, Signal to noise ratio, Composites

Proceedings Article | 15 March 1996 Paper

Voting scheme nonlinearity-based binary composite filter

Farid Ahmed, Mohammad Karim, Fahmida Rahman

Proceedings Volume 2752, (1996) https://doi.org/10.1117/12.235641

KEYWORDS: Composites, Distortion, Spatial light modulators, Signal to noise ratio, Modulation, Image filtering, Detection and tracking algorithms, Optical character recognition, Computer engineering, Electrical engineering

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SPIE Journal Paper | 1 November 1995

Wavelet transform-based correlator for the recognition of rotationally distorted images

Farid Ahmed, Mohammad Karim, Mohammad Alam

OE, Vol. 34, Issue 11, (November 1995) https://doi.org/10.1117/12.10.1117/12.213613

KEYWORDS: Wavelets, Composites, Distortion, Optical correlators, Modulation, Fourier transforms, Joint transforms, Remote sensing, Image filtering, Wavelet transforms

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SPIE Journal Paper | 1 November 1995

Feature-based neural wavelet optical character recognition system

Khan Iftekharuddin, Terry Schechinger, Kanaan Jemili, Mohammad Karim

OE, Vol. 34, Issue 11, (November 1995) https://doi.org/10.1117/12.10.1117/12.213654

KEYWORDS: Wavelets, Feature extraction, Optical character recognition, Optical filters, Image filtering, Optical correlators, Discrete wavelet transforms, Wavelet transforms, Databases, Binary data

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SPIE Journal Paper | 1 November 1995 Open Access

Guest Editorial: Optical Remote Sensing and Image Processing

Mohammad Karim, Bradley Duncan

OE, Vol. 34, Issue 11, (November 1995) https://doi.org/10.1117/12.10.1117/12.225930

KEYWORDS: Image processing, Remote sensing, Imaging systems, Phased array optics, Electro optics, LIDAR, Holography, Modulation transfer functions, Electrical engineering, Aerosols

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Proceedings Article | 5 July 1995 Paper

Wavelet feature performance analysis for distortion-invariant target detection

Farid Ahmed, Mohammad Karim

Proceedings Volume 2484, (1995) https://doi.org/10.1117/12.213058

KEYWORDS: Wavelets, Target detection, Statistical analysis, Target recognition, Feature extraction, Electro optical modeling, Wavelet transforms, Fourier transforms, Electrical engineering, Electro optics

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Proceedings Article | 6 April 1995 Paper

Wavelet preprocessed amplitude-modulated phase-only filter for recognition applications

Khan Iftekharuddin, Mohammad Karim, Kanaan Jemili

Proceedings Volume 2491, (1995) https://doi.org/10.1117/12.205377

KEYWORDS: Wavelets, Signal to noise ratio, Discrete wavelet transforms, Synthetic aperture radar, Fourier transforms, Bandpass filters, Phase only filters, Optical correlators, Interference (communication), Image processing

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Proceedings Article | 5 April 1995 Paper

Practical considerations for fabrication of active AlxGa1-xAs zero-gap directional couplers

James Grote, Mohammad Karim

Proceedings Volume 2400, (1995) https://doi.org/10.1117/12.206305

KEYWORDS: Aluminum, Waveguides, Electrodes, Switching, Electro optical modeling, Directional couplers, Electro optics, Refractive index, Beam propagation method, Polarization

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Proceedings Article | 28 March 1995 Paper

Rotation invariant detection in a noisy environment using a wavelet-based joint transform correlator

Farid Ahmed, Mohammad Alam, Mohammad Karim

Proceedings Volume 2490, (1995) https://doi.org/10.1117/12.205768

KEYWORDS: Composites, Wavelets, Distortion, Joint transforms, Optical correlators, Image filtering, Image resolution, Modulation, Environmental sensing, Wavelet transforms

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SPIE Journal Paper | 1 October 1994

Optical higher-order quaternary signed-digit arithmetic

Mohammad Alam, Kanaan Jemili, Mohammad Karim

OE, Vol. 33, Issue 10, (October 1994) https://doi.org/10.1117/12.10.1117/12.179410

KEYWORDS: Condition numbers, Computing systems, Binary data, Optical correlators, Content addressable memory, Symbolic substitution, Holograms, Opacity, Spatial light modulators, Digital Light Processing

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SPIE Journal Paper | 1 May 1994

Multiple target detection using a modified fringe-adjusted joint transform correlator

Mohammad Alam, Mohammad Karim

OE, Vol. 33, Issue 05, (May 1994) https://doi.org/10.1117/12.10.1117/12.168418

KEYWORDS: Target detection, Joint transforms, Optical correlators, Binary data, Apodization, Fourier transforms, Spatial light modulators, Charge-coupled devices, Computer simulations, Electronic filtering

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SPIE Journal Paper | 1 November 1993

Acquisition by staring focal-plane arrays: pixel geometry effects

Khan Iftekharuddin, Mohammad Karim

OE, Vol. 32, Issue 11, (November 1993) https://doi.org/10.1117/12.10.1117/12.148091

KEYWORDS: Signal detection, Modulation transfer functions, Staring arrays, Sensors, Detector arrays, Interference (communication), Point spread functions, Fourier transforms, Spatial frequencies, Detection and tracking algorithms

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SPIE Journal Paper | 1 November 1993

Binary joint transform correlation of defocused images

Barry Karch, Mohammad Karim, David Flannery

OE, Vol. 32, Issue 11, (November 1993) https://doi.org/10.1117/12.10.1117/12.148111

KEYWORDS: Joint transforms, Binary data, Optical correlators, Optical transfer functions, Computed tomography, Electronic filtering, Point spread functions, Optical filters, Fourier transforms, Spatial frequencies

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SPIE Journal Paper | 1 November 1993

Joint transform correlator performance enhancement by a logarithmic-polar transformation

Osvaldo Perez, Mohammad Karim

OE, Vol. 32, Issue 11, (November 1993) https://doi.org/10.1117/12.10.1117/12.148112

KEYWORDS: Fourier transforms, Optical correlators, Target recognition, Optical filters, Associative arrays, Computer generated holography, Joint transforms, CCD cameras, Cameras, Detection and tracking algorithms

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SPIE Journal Paper | 1 November 1993 Open Access

Guest Editorial: Acquisition, Pointing, and Tracking

Mohammad Karim

OE, Vol. 32, Issue 11, (November 1993) https://doi.org/10.1117/12.10.1117/12.162629

KEYWORDS: Electro optics, Phased array optics, Signal processing, Detection and tracking algorithms, Electrical engineering, Imaging systems, Electro optical systems, Optical engineering, Sensors, LIDAR

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Proceedings Article | 15 October 1993 Paper

Joint transform correlation under varying illumination conditions of the target

Mohammad Alam, Mohammad Karim

Proceedings Volume 1960, (1993) https://doi.org/10.1117/12.160596

KEYWORDS: Binary data, Target detection, Joint transforms, Fourier transforms, Spatial light modulators, Computer simulations, Object recognition, Optical correlators, Electronic filtering, Sensors

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SPIE Journal Paper | 1 November 1992 Open Access

Book Rvw: Principles of Modern Optical Systems, Volume II. Edited by Deepak Uttamchandani and Ivan Andonovic

Mohammad Karim

OE, Vol. 31, Issue 11, (November 1992) https://doi.org/10.1117/12.10.1117/1.OE.31.11.bkrvw1

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SPIE Journal Paper | 1 December 1991 Open Access

Book Review: Image Recognition by Holography. G. I. Vasilenko and L. M. Tsibul'kin

Mohammad Karim

OE, Vol. 30, Issue 12, (December 1991) https://doi.org/10.1117/12.10.1117/1.OE.31.4.bkrvw2

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SPIE Journal Paper | 1 November 1991

Device nonspecific dynamic performance model for thermal imaging systems

Minglun Gao, Mohammad Karim, Song Hua Zheng

OE, Vol. 30, Issue 11, (November 1991) https://doi.org/10.1117/12.10.1117/12.55998

KEYWORDS: Imaging systems, Thermography, Minimum resolvable temperature difference, Thermal modeling, Performance modeling, Systems modeling, Fourier transforms, Instrument modeling, Modulation transfer functions, Electro optical modeling

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SPIE Journal Paper | 1 November 1991

Minimum resolvable temperature difference model: a critical evaluation

Mohammad Karim, Minglun Gao, Song Hua Zheng

OE, Vol. 30, Issue 11, (November 1991) https://doi.org/10.1117/12.10.1117/12.55997

KEYWORDS: Minimum resolvable temperature difference, Solids, Spatial frequencies, Eye models, Signal to noise ratio, Black bodies, Imaging systems, Electro optical modeling, Temperature metrology, Systems modeling

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SPIE Journal Paper | 1 November 1991 Open Access

Guest Editorial: Infrared Imaging Systems

Mohammad Karim

OE, Vol. 30, Issue 11, (November 1991) https://doi.org/10.1117/12.10.1117/12.55988

KEYWORDS: Imaging systems, Infrared imaging, Systems modeling, Thermography, Electro optical modeling, Thermal modeling, Sensors, Infrared technology, Atmospheric modeling, Electro optics

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Proceedings Article | 1 August 1991 Paper

Optical enhancements of joint-Fourier-transform correlator by image subtraction

Osvaldo Perez, Mohammad Karim

Proceedings Volume 1471, (1991) https://doi.org/10.1117/12.44884

KEYWORDS: Fourier transforms, Image enhancement, Joint transforms, Polarizers, Object recognition, Polarization, Optical correlators, Video, Cameras, CCD cameras

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SPIE Journal Paper | 1 August 1991 Open Access

Book Review: Optical Computing in Japan. Edited by S. Ishihara.

Mohammad Karim

OE, Vol. 30, Issue 08, (August 1991) https://doi.org/10.1117/12.10.1117/1.OE.30.8.bkrvw1

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SPIE Journal Paper | 1 March 1991

Image enhancement using optical symbolic substitution

Abdallah Cherri, Mohammad Karim

OE, Vol. 30, Issue 03, (March 1991) https://doi.org/10.1117/12.10.1117/12.55792

KEYWORDS: Content addressable memory, Binary data, Symbolic substitution, Image enhancement, Holograms, Edge detection, Image processing, Opacity, Sensors, Holography

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SPIE Journal Paper | 1 October 1990 Open Access

Book Review: Optical Processing and Computing. Edited by H.H Arsenault, T.Szoplik and B. Macukow

Mohammad Karim

OE, Vol. 29, Issue 10, (October 1990) https://doi.org/10.1117/12.10.1117/1.OE.29.10.185A

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Proceedings Article | 1 September 1990 Paper

Correlation discrimination between phase-only filter and amplitude-modulated inverse filter in the recogniton of gray-level targets

Song Hua Zheng, Mohammad Karim, Minglun Gao

Proceedings Volume 1297, (1990) https://doi.org/10.1117/12.21317

KEYWORDS: Phase only filters, Filtering (signal processing), Optical correlators, Electronic filtering, Target recognition, Computer simulations, Critical dimension metrology, Signal to noise ratio, Image processing, Signal processing

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SPIE Journal Paper | 1 August 1990

Restoration of dynamically degraded gray level images in phosphor based display devices

Minglun Gao, Song Hua Zheng, Mohammad Karim, Donald Moon

OE, Vol. 29, Issue 08, (August 1990) https://doi.org/10.1117/12.10.1117/12.55673

KEYWORDS: Electronic filtering, Modulation transfer functions, Image filtering, Image analysis, Image display, Imaging systems, Binary data, Image processing, Fourier transforms, Displays

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SPIE Journal Paper | 1 August 1990

Device nonspecific minimum resolvable temperature difference (MRTD) for infrared imaging systems characterization

Minglun Gao, Mohammad Karim, Song Hua Zheng

OE, Vol. 29, Issue 08, (August 1990) https://doi.org/10.1117/12.10.1117/12.55676

KEYWORDS: Minimum resolvable temperature difference, Signal to noise ratio, Infrared imaging, Imaging systems, Information technology, Spatial frequencies, Eye, Thermography, Electro optical modeling, Systems modeling

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SPIE Journal Paper | 1 August 1990 Open Access

Guest editorial: Electro-Optical Displays

Mohammad Karim

OE, Vol. 29, Issue 08, (August 1990) https://doi.org/10.1117/12.10.1117/12.150771

KEYWORDS: Electro optics, Displays, Head-mounted displays, Electrical engineering, CRTs, Imaging systems, Modulation transfer functions, Combined lens-mirror systems, Light sources and illumination, Eye

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Proceedings Article | 1 July 1990 Paper

Morphological transformation based on optical symbolic substitution and polarization-encoded optical shadow-casting systems

Abdallah Cherri, Abdul Ahad Awwal, Mohammad Karim

Proceedings Volume 1215, (1990) https://doi.org/10.1117/12.18095

KEYWORDS: Light emitting diodes, Symbolic substitution, Optical computing, Binary data, Logic, Opacity, Computing systems, Computer engineering, Image processing, Computer programming

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Proceedings Article | 1 July 1990 Paper

Architectural relationship of symbolic substitution and optical shadow casting

Abdul Ahad Awwal, Abdallah Cherri, Mohammad Karim

Proceedings Volume 1215, (1990) https://doi.org/10.1117/12.18096

KEYWORDS: Symbolic substitution, Optical computing, Logic, Light emitting diodes, Image filtering, Optical correlators, Binary data, Optical proximity correction, Detection and tracking algorithms, Computer programming

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Proceedings Article | 1 July 1990 Paper

Shadow-casting based edge detection: using rebroadcasting material

Abdul Ahad Awwal, Alastair McAulay, Junqing Wang, Mohammad Karim

Proceedings Volume 1215, (1990) https://doi.org/10.1117/12.18099

KEYWORDS: Edge detection, Light emitting diodes, Optical computing, Digital imaging, Image processing, Computer programming, Computing systems, Binary data, Beam splitters, Optical design

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SPIE Journal Paper | 1 March 1990 Open Access

Book Review: Principles of Modern Optical Systems. Edited by Ivan Andonovic and Deepak Uttamchandani

Mohammad Karim

OE, Vol. 29, Issue 03, (March 1990) https://doi.org/10.1117/12.10.1117/1.OE.29.3.bkrvw1

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Showing 5 of 102 publications

Conference Committee Involvement (24)

Pattern Recognition and Prediction XXXVI

16 April 2025 | Orlando, Florida, United States

Pattern Recognition and Prediction XXXV

24 April 2024 | National Harbor, Maryland, United States

Pattern Recognition and Tracking XXXIV

3 May 2023 | Orlando, Florida, United States

Optics and Photonics for Information Processing XVI

24 August 2022 | San Diego, California, United States

Pattern Recognition and Tracking XXXIII

4 April 2022 | Orlando, Florida, United States

Optics and Photonics for Information Processing XV

4 August 2021 | San Diego, California, United States

Optics and Photonics for Information Processing XIV

23 August 2020 | Online Only, California, United States

Optics and Photonics for Information Processing XIII

13 August 2019 | San Diego, California, United States

Optics and Photonics for Information Processing XII

19 August 2018 | San Diego, California, United States

Optics and Photonics for Information Processing XI

7 August 2017 | San Diego, California, United States

Optics and Photonics for Information Processing X

29 August 2016 | San Diego, California, United States

Optics and Photonics for Information Processing IX

10 August 2015 | San Diego, California, United States

Optics and Photonics for Information Processing VIII

18 August 2014 | San Diego, California, United States

Optics and Photonics for Information Processing VII

28 August 2013 | San Diego, California, United States

Optics and Photonics for Information Processing VI

15 August 2012 | San Diego, California, United States

Optics and Photonics for Information Processing V

24 August 2011 | San Diego, California, United States

Optics and Photonics for Information Processing IV

3 August 2010 | San Diego, California, United States

Optics and Photonics for Information Processing III

4 August 2009 | San Diego, California, United States

Optics and Photonics for Information Processing II

13 August 2008 | San Diego, California, United States

Optics and Photonics for Information Processing

28 August 2007 | San Diego, California, United States

Photonic Devices and Algorithms for Computing VIII

14 August 2006 | San Diego, California, United States

Photonic Devices and Algorithms for Computing VII

1 August 2005 | San Diego, California, United States

Photonic Devices and Algorithms for Computing VI

2 August 2004 | Denver, Colorado, United States

Photonic Devices and Algorithms for Computing V

6 August 2003 | San Diego, California, United States

Showing 5 of 24 Conference Committees

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