Dr. Markus E. Testorf Profile

Dr. Markus E. Testorf

Lecturer at Dartmouth College

SPIE Involvement:

Author | Editor

Publications (42)

Proceedings Article | 5 March 2021 Presentation + Paper

Optical super-resolving phase filters with random anti-reflection subwavelength surface structures

Praneeth Gadamsetti, Markus Testorf, Paolo Batoni, Menelaos Poutous

Proceedings Volume 11682, 1168214 (2021) https://doi.org/10.1117/12.2576985

KEYWORDS: Optical filters, Super resolution, Reflectivity, Transmittance, Thin films, Thin film coatings, Silica, Semiconducting wafers, Optical lithography, Nanostructures

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Proceedings Article | 6 September 2019 Paper

On the degrees of freedom of the phase retrieval problem in phase space

Markus Testorf

Proceedings Volume 11135, 111350J (2019) https://doi.org/10.1117/12.2530100

KEYWORDS: Wigner distribution functions, Tomography, Diffraction, Phase retrieval, Near field diffraction, Signal detection, Sensors, Phase measurement, Geometrical optics, Wavefronts

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Proceedings Article | 18 September 2018 Paper

Performance limits and trade-offs of superresolution imaging systems

Markus Testorf

Proceedings Volume 10772, 107720G (2018) https://doi.org/10.1117/12.2322007

KEYWORDS: Super resolution, Imaging systems, Condition numbers, Diffraction, Optical design, Data modeling, Signal to noise ratio, Systems modeling, Reconstruction algorithms, Fourier transforms

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Proceedings Article | 21 September 2015 Paper

Inter-trial alignment of EEG data and phase-locking

M. Testorf, P. Horak, A. Connolly, G. Holmes, B. Jobst

Proceedings Volume 9600, 96000L (2015) https://doi.org/10.1117/12.2189194

KEYWORDS: Electroencephalography, Mode locking, Time-frequency analysis, Brain, Electrodes, Signal processing, Fourier transforms, Neuroimaging, Functional magnetic resonance imaging, Phase measurement

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Proceedings Article | 21 September 2015 Paper

Implementation and evaluation of an interictal spike detector

Peter Horak, Stephen Meisenhelter, Markus Testorf, Andrew Connolly, Kathryn Davis, Barbara Jobst

Proceedings Volume 9600, 96000N (2015) https://doi.org/10.1117/12.2189248

KEYWORDS: Sensors, Improvised explosive devices, Electroencephalography, Detector development, Detection and tracking algorithms, Sensor performance, Brain, Improvised explosive device detection, Algorithm development, Signal detection

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Proceedings Article | 21 September 2015 Paper

A phase space approach to imaging from limited data

Markus Testorf

Proceedings Volume 9600, 960009 (2015) https://doi.org/10.1117/12.2189138

KEYWORDS: Signal detection, Sensors, Wigner distribution functions, Imaging systems, Optical components, Optical phase space, Atrial fibrillation, Tomography, Interferometers, Optical imaging

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Proceedings Article | 15 October 2012 Paper

Phase-space analysis of sparse signals and compressive sensing

Markus Testorf

Proceedings Volume 8500, 850004 (2012) https://doi.org/10.1117/12.929758

KEYWORDS: Super resolution, Reconstruction algorithms, Compressed sensing, Phase retrieval, Algorithm development, Signal to noise ratio, Computer programming, Fourier transforms, Phase shift keying, Detection and tracking algorithms

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Proceedings Article | 15 October 2012 Paper

Joint time-frequency analysis of EEG signals based on a phase-space interpretation of the recording process

M. Testorf, B. Jobst, J. Kleen, A. Titiz, S. Guillory, R. Scott, K. Bujarski, D. Roberts, G. Holmes, P.-P. Lenck-Santini

Proceedings Volume 8500, 850008 (2012) https://doi.org/10.1117/12.930279

KEYWORDS: Electroencephalography, Time-frequency analysis, Signal processing, Chemical species, Brain, Electrodes, Wavelets, Signal analyzers, Human subjects, Mode locking

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Proceedings Article | 27 August 2010 Paper

Sampling rates and image reconstruction from scattered fields

Umer Shahid, Michael Fiddy, Markus Testorf

Proceedings Volume 7800, 780005 (2010) https://doi.org/10.1117/12.861454

KEYWORDS: Scattering, Electronic filtering, Scatter measurement, Image restoration, Inverse scattering problem, Image analysis, Inverse scattering, Reconstruction algorithms, Fourier transforms, Receivers

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Proceedings Article | 5 September 2008 Paper

Inversion of strongly scattered data: shape and permittivity recovery

U. Shahid, M. Fiddy, M. Testorf

Proceedings Volume 7076, 707606 (2008) https://doi.org/10.1117/12.796137

KEYWORDS: Scattering, Electronic filtering, Fourier transforms, Foam, Transform theory, Filtering (signal processing), Signal processing, Linear filtering, Spatial frequencies, Nonlinear filtering

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Proceedings Article | 5 September 2008 Paper

Superresolution capabilities of 3D optical filters

Michael Fiddy, Markus Testorf

Proceedings Volume 7076, 70760K (2008) https://doi.org/10.1117/12.796795

KEYWORDS: Imaging systems, Optical filters, Super resolution, Image resolution, Modulation, Sensors, Cameras, 3D image processing, Signal detection, 3D modeling

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Proceedings Article | 7 September 2006 Paper

Range detection through the atmosphere using Laguerre-Gaussian beams

Canh Ly, Markus Testorf, Joseph Mait

Proceedings Volume 6307, 630704 (2006) https://doi.org/10.1117/12.680856

KEYWORDS: Atmospheric propagation, Beam propagation method, Wave propagation, Superposition, Radio propagation, Radar, Atmospheric modeling, Electromagnetism, Antennas, Modulation

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Proceedings Article | 5 September 2006 Paper

Improved image reconstruction from multiple frames

Markus Testorf, Michael Fiddy

Proceedings Volume 6316, 631609 (2006) https://doi.org/10.1117/12.683396

KEYWORDS: Imaging systems, Image restoration, Image resolution, Reconstruction algorithms, Signal detection, Image enhancement, Sensors, Data acquisition, Detection and tracking algorithms, Fourier transforms

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Proceedings Article | 5 September 2006 Paper

k-space design of methods for optical and imaging hardware

M. Fiddy, M. Testorf

Proceedings Volume 6316, 63160H (2006) https://doi.org/10.1117/12.683397

KEYWORDS: Scattering, Electronic filtering, Fourier transforms, Nonlinear filtering, Inverse scattering, Optical design, Optical imaging, Image restoration, Diffraction, Tomography

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Proceedings Article | 5 September 2006 Paper

The Wigner distribution function applied to the detection of subsurface objects

Markus Testorf, Marc Saillard

Proceedings Volume 6316, 63160L (2006) https://doi.org/10.1117/12.678486

KEYWORDS: Wigner distribution functions, Signal detection, Scattering, Target detection, Sensors, Tantalum, Correlation function, Wave propagation, Joint transforms, Interfaces

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Proceedings Article | 5 September 2006 Paper

Imaging with singular electromagnetic beam

Markus Testorf, Canh Ly, Joseph Mait

Proceedings Volume 6316, 631605 (2006) https://doi.org/10.1117/12.680837

KEYWORDS: Scattering, Laser scattering, Diffraction, Tomography, Gaussian beams, Wave propagation, Atmospheric propagation, Beam propagation method, Refractive index, Superposition

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Proceedings Article | 22 October 2004 Paper

Phase retrieval and phase-space tomography from incomplete data sets

Markus Testorf, Andrey Semichaevsky

Proceedings Volume 5562, (2004) https://doi.org/10.1117/12.559588

KEYWORDS: Atrial fibrillation, Wigner distribution functions, Phase retrieval, Tomography, Reconstruction algorithms, Signal processing, Computed tomography, Near field diffraction, Data modeling, Error analysis

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Proceedings Article | 22 October 2004 Paper

Minimum-phase-based inverse scattering method applied to IPS008

Michael Fiddy, Markus Testorf, Umer Shahid

Proceedings Volume 5562, (2004) https://doi.org/10.1117/12.561816

KEYWORDS: Scattering, Fourier transforms, Nonlinear filtering, Linear filtering, Inverse scattering problem, Inverse scattering, Data acquisition, Remote sensing, Electronic filtering, Inverse problems

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Proceedings Article | 8 October 2004 Paper

Design of thin-film-coated diffractive optical elements with frequency variant transmission functions

Markus Testorf, Ursula Gibson

Proceedings Volume 5515, (2004) https://doi.org/10.1117/12.559618

KEYWORDS: Diffraction, Thin films, Diffractive optical elements, Diffraction gratings, Thin film coatings, Optical components, Optical design, Volume holography, Holograms, Prisms

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SPIE Journal Paper | 1 August 2004

Real-time holographic deconvolution for one-way image transmission through distorting media

Bahareh Haji-Saeed, Dana Pyburn, R. Leon, S. Sengupta, W. Goodhue, Markus Testorf, John Kierstead, Jed Khoury, Charles Woods

OE, Vol. 43, Issue 08, (August 2004) https://doi.org/10.1117/12.10.1117/1.1768182

KEYWORDS: Image transmission, Crystals, Distortion, Deconvolution, Image filtering, Holography, Signal to noise ratio, Computer simulations, Phase conjugation, Laser crystals

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Proceedings Article | 12 April 2004 Paper

Characterization of photorefractive deconvolution techniques for one-way image transmission through an aberrating medium

B. Haji-Saeed, S. Sengupta, Markus Testorf, Dalila Megherbi, W. Goodhue, Jed Khoury, Charles Woods, John Kierstead

Proceedings Volume 5437, (2004) https://doi.org/10.1117/12.548076

KEYWORDS: Signal to noise ratio, Image transmission, Image filtering, Deconvolution, Image restoration, Four wave mixing, Distortion, Crystals, Computer simulations, Optical simulations

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Proceedings Article | 12 April 2004 Paper

Photoconductive optically driven deformable membrane for spatial light modulator applications utilizing GaAs and InP substrates

B. Haji-Saeed, R. Kolluru, Dana Pyburn, R. Leon, S. Sengupta, Markus Testorf, W. Goodhue, Jed Khoury, Alvin Drehman, Charles Woods, John Kierstead

Proceedings Volume 5437, (2004) https://doi.org/10.1117/12.548069

KEYWORDS: Gallium arsenide, Mirrors, Semiconducting wafers, Deformable mirrors, Wafer-level optics, Zinc oxide, Photoresist materials, Michelson interferometers, Photodetectors, Microelectromechanical systems

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Proceedings Article | 12 September 2003 Paper

Joint time-frequency analysis of high-bandwidth low-resolution ISAR imaging systems

Patrick Ghogomu, Markus Testorf

Proceedings Volume 5095, (2003) https://doi.org/10.1117/12.486396

KEYWORDS: Radar imaging, Time-frequency analysis, Radar, Image resolution, Detection and tracking algorithms, Fourier transforms, Reconstruction algorithms, Synthetic aperture radar, Scattering, Imaging systems

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Proceedings Article | 21 August 2003 Paper

Low-power portable scanning imaging ladar system

Dana Pyburn, Roberto Leon, B. Haji-Saeed, Sandip Sengupta, Markus Testorf, John Kierstead, Jehad Khoury, Charles Woods, Joseph Lorenzo

Proceedings Volume 5086, (2003) https://doi.org/10.1117/12.487995

KEYWORDS: LIDAR, Spatial resolution, Receivers, Imaging systems, Image resolution, Telescopes, Signal detection, Sensors, Signal to noise ratio, MATLAB

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Proceedings Article | 6 August 2003 Paper

Photorefractive nonlinear deconvolution for one-way image transmission through aberrating media

B. Haji-Saeed, Dana Pyburn, R. Leon, S. Sengupta, W. Goodhue, Markus Testorf, John Kierstead, Jed Khoury, Charles Woods

Proceedings Volume 5106, (2003) https://doi.org/10.1117/12.487999

KEYWORDS: Image transmission, Crystals, Distortion, Beam splitters, Deconvolution, Signal to noise ratio, Laser crystals, Phase conjugation, Image filtering, Computer simulations

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Proceedings Article | 23 December 2002 Paper

Foliage-penetrating radar imaging system

Christopher Beaudoin, Andrew Gatesman, Robert Giles, Jerry Waldman, Markus Testorf, Michael Fiddy, William Nixon

Proceedings Volume 4792, (2002) https://doi.org/10.1117/12.452400

KEYWORDS: Radar, Image processing, Scattering, Calibration, Dielectric polarization, Dielectrics, Imaging systems, Automatic target recognition, Data modeling, Target detection

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Proceedings Article | 23 December 2002 Paper

Inverse scattering of strongly scattering targets using redundant data sets

Andrey Semichaevsky, Patrick Ghogomu, Nedal Al Ababneh, Markus Testorf, Michael Fiddy

Proceedings Volume 4792, (2002) https://doi.org/10.1117/12.451794

KEYWORDS: Scattering, Multiple scattering, Refractive index, Dielectrics, Inverse scattering, Scatter measurement, Polarization, Inverse problems, Detection and tracking algorithms, Interfaces

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Proceedings Article | 23 December 2002 Paper

Automated target morphing applied to objects in cluttered backgrounds

Markus Testorf, Andrey Semichaevsky, Robert McGahan, Michael Fiddy

Proceedings Volume 4792, (2002) https://doi.org/10.1117/12.451793

KEYWORDS: Detection and tracking algorithms, Target recognition, Reconstruction algorithms, Fourier transforms, Image analysis, Automatic target recognition, Image resolution, Foliage penetrating radar, Scattering, Radar

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Proceedings Article | 9 July 2002 Paper

Holography and the Wigner function

Adolf Lohmann, Markus Testorf, Jorge Ojeda-Castaneda

Proceedings Volume 4737, (2002) https://doi.org/10.1117/12.474960

KEYWORDS: Wigner distribution functions, Holograms, Holography, 3D image reconstruction, Sensors, Wavefronts, Wave propagation, Near field diffraction, Modulation, Signal detection

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Proceedings Article | 21 December 2001 Paper

Anything optical rays cannot do?

Andrey Semichaevsky, Markus Testorf

Proceedings Volume 4436, (2001) https://doi.org/10.1117/12.451310

KEYWORDS: Geometrical optics, Diffraction, Radio propagation, Wave propagation, Scattering, Wavefronts, Wigner distribution functions, Light wave propagation, Optical components, Electromagnetism

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Proceedings Article | 27 November 2001 Paper

Incorporation of prior information in surface imaging applications

Hsin-Ming Shieh, Charles Byrne, Markus Testorf, Michael Fiddy

Proceedings Volume 4491, (2001) https://doi.org/10.1117/12.450178

KEYWORDS: Fourier transforms, Image resolution, Scattering, Detection and tracking algorithms, Image processing, Synthetic aperture radar, Radar, Diffraction, Image analysis, Reflection

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Proceedings Article | 27 November 2001 Paper

Suppression of surface reflection in subsurface imaging applications

Markus Testorf, Michael Fiddy

Proceedings Volume 4491, (2001) https://doi.org/10.1117/12.450153

KEYWORDS: Detection and tracking algorithms, Reflection, Scattering, Optical spheres, Radar, Free space, Mining, Fourier transforms, Target recognition, Calibration

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Proceedings Article | 16 November 2000 Paper

Numerical considerations when imaging penetrable highly scattering objects from incomplete data

Andres Morales-Porras, Markus Testorf, Robert McGahan, Michael Fiddy

Proceedings Volume 4123, (2000) https://doi.org/10.1117/12.409271

KEYWORDS: Electronic filtering, Scattering, Nonlinear filtering, Image filtering, Reconstruction algorithms, Detection and tracking algorithms, Inverse scattering, Image analysis, Fourier transforms, Linear filtering

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Proceedings Article | 16 November 2000 Paper

Imaging of strongly scattering targets based on space-bandwidth product gating

Markus Testorf, Michael Fiddy

Proceedings Volume 4123, (2000) https://doi.org/10.1117/12.409268

KEYWORDS: Scattering, Light scattering, Tomography, Diffraction, Optical coherence tomography, Multiple scattering, Signal detection, Inverse scattering, Refractive index, Photons

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Proceedings Article | 16 November 2000 Paper

Detecting 1/10th scaled structures in dielectric media using monostatic X-band radar scattering measurements

John Kekis, Markus Testorf, Michael Fiddy, Robert Giles

Proceedings Volume 4123, (2000) https://doi.org/10.1117/12.409277

KEYWORDS: Mining, Radar, Optical spheres, Dielectrics, X band, Scattering, Calibration, Network security, Super resolution, Scatter measurement

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Proceedings Article | 1 June 1999 Paper

Numerical optimization of deep diffractive optical elements

Markus Testorf, Michael Fiddy

Proceedings Volume 3633, (1999) https://doi.org/10.1117/12.349344

KEYWORDS: Diffraction, Modulation, Diffractive optical elements, Optical design, Wave propagation, Optimization (mathematics), Diffraction gratings, Tolerancing, Spatial frequencies, Wavefronts

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Proceedings Article | 30 December 1998 Paper

Comparison of sampling methods for time and frequency domain signals in Monte Carlo simulations of light migration in turbid material

Markus Testorf, Ulf Oesterberg, Brian Pogue, Keith Paulsen

Proceedings Volume 3566, (1998) https://doi.org/10.1117/12.334360

KEYWORDS: Error analysis, Monte Carlo methods, Quantization, Photon transport, Modulation, Fourier transforms, Photodetectors, Time correlated photon counting, Promethium, Statistical analysis

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Proceedings Article | 28 December 1998 Paper

Fourier properties of fingerprints

Jin Li, Markus Testorf, Michael Fiddy

Proceedings Volume 3575, (1998) https://doi.org/10.1117/12.334989

KEYWORDS: Signal detection, Fourier transforms, Fingerprint recognition, Electronics, Optical correlators, Diffraction, Sensors, Feature extraction, Optical design, Modulation

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Proceedings Article | 12 July 1993 Paper

Diffusion elements in glass: comparison and optimization of the diffusion response in different substrates

Jochen Baehr, Karl-Heinz Brenner, Joerg Moisel, Wolfgang Singer, Stefan Sinzinger, T. Spick, Markus Testorf

Proceedings Volume 1806, (1993) https://doi.org/10.1117/12.147835

KEYWORDS: Diffusion, Glasses, Microlens, Silver, Sodium, Ion exchange, GRIN lenses, Optical computing, Computer simulations, Ions

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Proceedings Article | 12 July 1993 Paper

Micro-optical setup with microlenses and microprisms based on refractive optics

Karl-Heinz Brenner, Michael Frank, Maria Kufner, Stefan Kufner, Joerg Moisel, A. Mueller, Stefan Sinzinger, Markus Testorf, Jost Goettert, Juergen Mohr

Proceedings Volume 1806, (1993) https://doi.org/10.1117/12.147834

KEYWORDS: Prisms, Microlens, Lithography, Image acquisition, Optical computing, Polymethylmethacrylate, Imaging systems, Glasses, Etching, Optical imaging

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Proceedings Article | 12 July 1993 Paper

Fabrication method of microlenses with high relative apertures in PMMA

Michael Frank, Maria Kufner, Stefan Kufner, Markus Testorf

Proceedings Volume 1806, (1993) https://doi.org/10.1117/12.147824

KEYWORDS: Microlens, Polymethylmethacrylate, Diffusion, Optical computing, Optical fabrication, Beam splitters, Molecules, Polymerization, Ionizing radiation, Electromagnetic radiation

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