Prof. Michael C. Roggemann Profile

Prof. Michael C. Roggemann

Research Scientist

SPIE Involvement:

Author | Instructor

Publications (114)

SPIE Journal Paper | 5 July 2018

Measuring the detector-observed impact of optical blurring due to aerosols in a laboratory cloud chamber

Corey Packard, Raymond Shaw, Will Cantrell, Greg Kinney, Michael Roggemann, John Valenzuela

JARS, Vol. 12, Issue 04, 042404, (July 2018) https://doi.org/10.1117/12.10.1117/1.JRS.12.042404

KEYWORDS: Modulation transfer functions, Aerosols, Clouds, Atmospheric particles, Sensors, Scattering, Point spread functions, Imaging systems, Light scattering, Atmospheric modeling

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Proceedings Article | 19 October 2016 Paper

Measurement of optical blurring in a turbulent cloud chamber

Corey Packard, David Ciochetto, Will Cantrell, Michael Roggemann, Raymond Shaw

Proceedings Volume 10002, 100020E (2016) https://doi.org/10.1117/12.2241419

KEYWORDS: Clouds, Atmospheric optics, Aerosols, Atmospheric particles, Scattering, Atmospheric propagation, Point spread functions, Atmospheric modeling, Modulation transfer functions, Fiber optic gyroscopes

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Earth’s atmosphere can significantly impact the propagation of electromagnetic radiation, degrading the performance of imaging systems. Deleterious effects of the atmosphere include turbulence, absorption and scattering by particulates. Turbulence leads to blurring, while absorption attenuates the energy that reaches imaging sensors. The optical properties of aerosols and clouds also impact radiation propagation via scattering, resulting in decorrelation from unscattered light. Models have been proposed for calculating a point spread function (PSF) for aerosol scattering, providing a method for simulating the contrast and spatial detail expected when imaging through atmospheres with significant aerosol optical depth. However, these synthetic images and their predicating theory would benefit from comparison with measurements in a controlled environment. Recently, Michigan Technological University (MTU) has designed a novel laboratory cloud chamber. This multiphase, turbulent “Pi Chamber” is capable of pressures down to 100 hPa and temperatures from -55 to +55°C. Additionally, humidity and aerosol concentrations are controllable. These boundary conditions can be combined to form and sustain clouds in an instrumented laboratory setting for measuring the impact of clouds on radiation propagation. This paper describes an experiment to generate mixing and expansion clouds in supersaturated conditions with salt aerosols, and an example of measured imagery viewed through the generated cloud is shown. Aerosol and cloud droplet distributions measured during the experiment are used to predict scattering PSF and MTF curves, and a methodology for validating existing theory is detailed. Measured atmospheric inputs will be used to simulate aerosol-induced image degradation for comparison with measured imagery taken through actual cloud conditions. The aerosol MTF will be experimentally calculated and compared to theoretical expressions. The key result of this study is the proposal of a closure experiment for verification of theoretical aerosol effects using actual clouds in a controlled laboratory setting.

SPIE Journal Paper | 14 December 2015 Open Access

Multispectral detection and tracking of multiple moving targets in cluttered urban environments

Casey Demars, Michael Roggemann, Timothy Havens

OE, Vol. 54, Issue 12, 123106, (December 2015) https://doi.org/10.1117/12.10.1117/1.OE.54.12.123106

KEYWORDS: Long wavelength infrared, Mid-IR, Target detection, Near infrared, Detection and tracking algorithms, Image fusion, Visible radiation, Video, Optical engineering, Optical tracking

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SPIE Journal Paper | 2 March 2015

Reconstruction of images degraded by aerosol scattering and measurement noise

Mohamed Hanafy, Michael Roggemann, Durdu Guney

OE, Vol. 54, Issue 03, 033101, (March 2015) https://doi.org/10.1117/12.10.1117/1.OE.54.3.033101

KEYWORDS: Aerosols, Fiber optic gyroscopes, Signal to noise ratio, Scattering, Point spread functions, Imaging systems, Atmospheric particles, Atmospheric modeling, Modulation transfer functions, Atmospheric optics

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SPIE Journal Paper | 9 January 2015

Estimating the image spectrum signal-to-noise ratio for imaging through scattering media

Mohamed Hanafy, Michael Roggemann, Durdu Guney

OE, Vol. 54, Issue 01, 013102, (January 2015) https://doi.org/10.1117/12.10.1117/1.OE.54.1.013102

KEYWORDS: Atmospheric modeling, Signal to noise ratio, Aerosols, Point spread functions, Fiber optic gyroscopes, Air contamination, Imaging systems, Atmospheric particles, Photons, Atmospheric optics

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Proceedings Article | 13 June 2014 Paper

Mean square error performance evaluation of a commercial speckle imaging system using simulated imagery

Jeremy Bos, Aaron Paolini, Eric Kelmelis, Michael Roggemann

Proceedings Volume 9095, 909509 (2014) https://doi.org/10.1117/12.2050384

KEYWORDS: Turbulence, Imaging systems, Image processing, Speckle imaging, Point spread functions, Error analysis, Image quality, Intelligence systems, Atmospheric turbulence, Astronomical telescopes

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SPIE Journal Paper | 29 April 2014 Open Access

Comparison of bispectrum, multiframe blind deconvolution and hybrid bispectrum-multiframe blind deconvolution image reconstruction techniques for anisoplanatic, long horizontal-path imaging

Glen Archer, Jeremy Bos, Michael Roggemann

OE, Vol. 53, Issue 04, 043109, (April 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.4.043109

KEYWORDS: Turbulence, Image processing, Photons, Deconvolution, Image restoration, Optical engineering, Imaging systems, Point spread functions, Statistical analysis, Speckle imaging

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Proceedings Article | 25 September 2013 Paper

Using speckle imaging techniques as a starting point for MFBD scene reconstruction from long horizontal-path, turbulence-degraded imagery

Jeremy Bos, Glen Archer, Michael Roggemann

Proceedings Volume 8874, 88740O (2013) https://doi.org/10.1117/12.2025422

KEYWORDS: Turbulence, Speckle imaging, Signal to noise ratio, Point spread functions, Atmospheric modeling, Neodymium, Image processing, Imaging systems, Deconvolution, Atmospheric propagation

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SPIE Journal Paper | 23 August 2013 Open Access

Reconstruction of long horizontal-path images under anisoplanatic conditions using multiframe blind deconvolution

Glen Archer, Jeremy Bos, Michael Roggemann

OE, Vol. 52, Issue 08, 083108, (August 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.8.083108

KEYWORDS: Turbulence, Image processing, Point spread functions, Imaging systems, Photons, Deconvolution, Diffraction, Data modeling, Reconstruction algorithms, Zernike polynomials

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Proceedings Article | 31 May 2013 Paper

A comparison of the mean square error performance of speckle and MFBD image reconstruction techniques under anisoplanatic long-horizontal-path imaging

Glen Archer, Jeremy Bos, Michael Roggemann

Proceedings Volume 8713, 87130M (2013) https://doi.org/10.1117/12.2016124

KEYWORDS: Image processing, Turbulence, Photons, Error analysis, Speckle imaging, Image restoration, Speckle, Imaging systems, Diffraction, Computer simulations

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SPIE Journal Paper | 7 March 2013

Optical-electrical printed wiring board for high-speed computing applications

Joseph Dingeldein, Kevin Kruse, Casey Demars, Christopher Middlebrook, Craig Friedrich, Michael Roggemann

OE, Vol. 52, Issue 03, 035201, (March 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.3.035201

KEYWORDS: Waveguides, Optics manufacturing, Optical alignment, Epoxies, Connectors, Prototyping, Humidity, Polymers, Optical interconnects, Optical fabrication

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Proceedings Article | 24 October 2012 Paper

Estimation of the atmospheric blurring function using blind image quality metrics

Jeremy Bos, Michael Roggemann

Proceedings Volume 8517, 85170J (2012) https://doi.org/10.1117/12.930389

KEYWORDS: Image quality, Turbulence, JPEG2000, Speckle imaging, Image restoration, Imaging systems, Optical transfer functions, Image processing, Image analysis, Molybdenum

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SPIE Journal Paper | 3 October 2012

Blind image quality metrics for optimal speckle image reconstruction in horizontal imaging scenarios

Jeremy Bos, Michael Roggemann

OE, Vol. 51, Issue 10, 107003, (October 2012) https://doi.org/10.1117/12.10.1117/1.OE.51.10.107003

KEYWORDS: Image quality, Turbulence, Image restoration, Imaging systems, Speckle, Speckle imaging, Optical transfer functions, Image processing, Anisotropy, Atmospheric modeling

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SPIE Journal Paper | 3 August 2012

Robustness of speckle-imaging techniques applied to horizontal imaging scenarios

Jeremy Bos, Michael Roggemann

OE, Vol. 51, Issue 8, 083201, (August 2012) https://doi.org/10.1117/12.10.1117/1.OE.51.8.083201

KEYWORDS: Turbulence, Signal to noise ratio, Speckle imaging, Imaging systems, Optical engineering, Image quality, Computer simulations, Filtering (signal processing), Solids, Image restoration

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SPIE Journal Paper | 15 May 2012

Technique for simulating anisoplanatic image formation over long horizontal paths

Jeremy Bos, Michael Roggemann

OE, Vol. 51, Issue 10, 101704, (May 2012) https://doi.org/10.1117/12.10.1117/1.OE.51.10.101704

KEYWORDS: Turbulence, Point spread functions, Imaging systems, Image acquisition, Error analysis, Data modeling, Image restoration, Atmospheric propagation, Optical engineering, Computer simulations

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Proceedings Article | 7 May 2012 Paper

Wavefront sensor alignment and calibration techniques for laser communication systems

Aleksandr Sergeyev, Eugene Levin, Michael Roggemann

Proceedings Volume 8408, 84080R (2012) https://doi.org/10.1117/12.918124

KEYWORDS: Calibration, Telecommunications, Wavefronts, Transmitters, Wavefront sensors, Light emitting diodes, Atmospheric turbulence, Laser communications, Receivers, Laser systems engineering

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Proceedings Article | 7 May 2012 Paper

Mean squared error performance of MFBD nonlinear scene reconstruction using speckle imaging in horizontal imaging applications

Glen Archer, Jeremy Bos, Michael Roggemann

Proceedings Volume 8399, 83990Q (2012) https://doi.org/10.1117/12.920801

KEYWORDS: Turbulence, Imaging systems, Image restoration, Image processing, Diffraction, Atmospheric propagation, Error analysis, Zernike polynomials, Point spread functions, Speckle imaging

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SPIE Journal Paper | 7 March 2012

Method for determining the spatial correlation width of a Gaussian-Schell beam to optimize the scintillation index over long horizontal turbulent paths

Kyle Drexler, Michael Roggemann

OE, Vol. 51, Issue 02, 028002, (March 2012) https://doi.org/10.1117/12.10.1117/1.OE.51.2.028002

KEYWORDS: Global system for mobile communications, Turbulence, Fluorescence correlation spectroscopy, Receivers, Scintillation, Atmospheric modeling, Atmospheric propagation, Optical simulations, Free space optics, Optical engineering

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Proceedings Article | 23 February 2012 Paper

Optical waveguide end roughness in correlation to optical coupling

Kevin Kruse, Nick Riegel, Casey Demars, Christopher Middlebrook, Michael Roggemann

Proceedings Volume 8267, 82670N (2012) https://doi.org/10.1117/12.908847

KEYWORDS: Waveguides, Polishing, Optical simulations, Optical fibers, Polymers, Optics manufacturing, Multimode fibers, Polymer multimode waveguides, Reflection, Beam propagation method

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Proceedings Article | 23 February 2012 Paper

Anisoplanatism over horizontal path: comparison of theoretical and experimental results

Jeremy Bos, Aleksandr Sergeyev, Michael Roggemann

Proceedings Volume 8246, 82460N (2012) https://doi.org/10.1117/12.906546

KEYWORDS: Turbulence, Point spread functions, Liquid crystals, Imaging systems, Data modeling, Light emitting diodes, Transmitters, Receivers, CCD cameras, Distortion

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Proceedings Article | 7 September 2011 Paper

Simulation of extended scenes imaged through turbulence over horizontal paths

Jeremy Bos, Michael Roggeman

Proceedings Volume 8161, 816106 (2011) https://doi.org/10.1117/12.893869

KEYWORDS: Turbulence, Point spread functions, Imaging systems, Distortion, Computer simulations, Image restoration, Image processing, Scene simulation, Error analysis, Atmospheric propagation

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Proceedings Article | 7 September 2011 Paper

An investigation into the Paulding Mystery Lights

Jeremy Bos, William Norkus, Michael Maurer, Douglas Sims, Christopher Middlebrook, Michael Roggeman

Proceedings Volume 8161, 81610K (2011) https://doi.org/10.1117/12.893692

KEYWORDS: Light, Headlamps, Telescopes, Visible radiation, Roads, Video, Atmospheric optics, Turbulence, Optical properties, Spectroscopy

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Proceedings Article | 7 September 2011 Paper

The effect of free parameter estimates on the reconstruction of turbulence corrupted images using the bispectrum

Jeremy Bos, Michael Roggeman

Proceedings Volume 8161, 816105 (2011) https://doi.org/10.1117/12.893859

KEYWORDS: Turbulence, Imaging systems, Speckle imaging, Point spread functions, Image restoration, Filtering (signal processing), Image quality, Image processing, Speckle, Image registration

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Proceedings Article | 3 June 2011 Paper

Mean squared error performance of speckle-imaging using the bispectrum in horizontal imaging applications

Jeremy Bos, Michael Roggemann

Proceedings Volume 8056, 805603 (2011) https://doi.org/10.1117/12.884093

KEYWORDS: Turbulence, Imaging systems, Image restoration, Speckle imaging, Optical transfer functions, Atmospheric turbulence, Image resolution, Spatial frequencies, Computer simulations, Image analysis

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Proceedings Article | 25 May 2011 Paper

Near the ground laser communication system: anisoplantic studies based on the PSF measurements

Aleksandr Sergeyev, Michael Roggemann, Casey Demars

Proceedings Volume 8038, 80380H (2011) https://doi.org/10.1117/12.882576

KEYWORDS: Point spread functions, Light emitting diodes, Transmitters, Receivers, Telecommunications, Turbulence, Laser communications, Laser systems engineering, Atmospheric turbulence, Atmospheric propagation

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SPIE Journal Paper | 1 February 2011

Use of a partially coherent transmitter beam to improve the statistics of received power in a free-space optical communication system: theory and experimental results

Kyle Drexler, Michael Roggemann, David Voelz

OE, Vol. 50, Issue 02, 025002, (February 2011) https://doi.org/10.1117/12.10.1117/1.3533737

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Proceedings Article | 18 January 2011 Paper

Optical loss characterization of polymer waveguides on halogen and halogen-free FR-4 substrates

Brandon Swatowski, Christopher Middlebrook, Karl Walczak, Michael Roggemann

Proceedings Volume 7944, 794409 (2011) https://doi.org/10.1117/12.866081

KEYWORDS: Waveguides, Halogens, Signal attenuation, Polymers, Polymer multimode waveguides, Eye, Thermography, Diffusion, Optical testing, Absorption

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Proceedings Article | 4 May 2010 Paper

Near the ground laser communication system for monitoring the statistics of turbulence: fried parameter estimation from the PSF measurements

Aleksandr Sergeyev, Michael Roggemann, Casey Demars

Proceedings Volume 7685, 76850L (2010) https://doi.org/10.1117/12.853373

KEYWORDS: Point spread functions, Light emitting diodes, Transmitters, Receivers, Turbulence, Telecommunications, Statistical analysis, Telescopes, CCD cameras, Atmospheric turbulence

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Proceedings Article | 7 May 2009 Paper

An atmospheric turbulence, scattering, and weather monitoring system for three kilometers, partially over water path for monitoring the statistics of turbulence

Aleksandr Sergeyev, Michael Roggemann, Chris Middlebrook, Piotr Piatrou, Weidong Yang, Kyle Drexler, Casey Demars

Proceedings Volume 7324, 73240P (2009) https://doi.org/10.1117/12.821664

KEYWORDS: Receivers, Transmitters, Turbulence, Telescopes, Atmospheric turbulence, CCD cameras, Calibration, Wavefront sensors, Telecommunications, Cameras

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Proceedings Article | 26 August 2008 Paper

Remote ultra-low light imaging (RULLI) for space situational awareness (SSA): modeling and simulation results for passive and active SSA

Michael Roggemann, Kris Hamada, S. Rao Gudimetla, Kim Luu, L. William Bradford, David Thompson, Robert Shirey

Proceedings Volume 7094, 709409 (2008) https://doi.org/10.1117/12.793913

KEYWORDS: Sensors, CCD image sensors, Charge-coupled devices, 3D modeling, Temporal resolution, Signal to noise ratio, 3D image processing, Image processing, Atmospheric propagation, Pulsed laser operation

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Proceedings Article | 26 August 2008 Paper

Potential application of micro-bolometer coupled antenna-pairs in beam synthesis

Weidong Yang, Michael Roggemann, Christopher Middlebrook, Nikola Subotic, William Buller, Kyle Cooper

Proceedings Volume 7055, 70550N (2008) https://doi.org/10.1117/12.795731

KEYWORDS: Antennas, Signal attenuation, Sensors, Infrared imaging, Bolometers, Data processing, Phased arrays, Beam steering, Infrared radiation, Infrared sensors

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Proceedings Article | 25 August 2008 Paper

Design of the stereoscopic eye-tracking system for quantitative remote sensing applications

Aleksandr Sergeyev, Eugene Levin, Michael Roggemann, Gennady Gienko

Proceedings Volume 7087, 70870J (2008) https://doi.org/10.1117/12.796424

KEYWORDS: 3D modeling, LCDs, Eye models, Eye, Systems modeling, Visualization, Calibration, Remote sensing, Cameras, Video

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SPIE Journal Paper | 1 August 2007

Characterizing static aberrations in liquid crystal spatial light modulators using phase retrieval

Nathaniel Hart, Michael Roggemann, Aleksandr Sergeyev, Timothy Schulz

OE, Vol. 46, Issue 08, 086601, (August 2007) https://doi.org/10.1117/12.10.1117/1.2767258

KEYWORDS: Spatial light modulators, Far-field diffraction, Liquid crystals, Cameras, Phase retrieval, Zernike polynomials, Mirrors, Optical engineering, Image processing, Measurement devices

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Proceedings Article | 29 August 2006 Paper

Bootstrap beacon creation for dynamic wavefront compensation

Aleksandr Sergeyev, Michael Roggemann, Timothy Schulz

Proceedings Volume 6306, 63060S (2006) https://doi.org/10.1117/12.682294

KEYWORDS: Turbulence, Atmospheric propagation, Rayleigh guide stars, Light scattering, Laser scattering, Scattering, Wavefronts, Atmospheric modeling, Transmitters, Rayleigh scattering

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SPIE Journal Paper | 1 March 2006

Distance-based and neural-net-based approaches for classifying satellites using spectral measurements

Marie-Astrid Cauquy, Michael Roggemann, Timothy Schulz

OE, Vol. 45, Issue 03, 036201, (March 2006) https://doi.org/10.1117/12.10.1117/1.2179802

KEYWORDS: Satellites, Databases, Artificial neural networks, Calibration, Telescopes, Neural networks, Space telescopes, Distance measurement, Spectral calibration, Sun

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SPIE Journal Paper | 1 November 2005

Wavefront-sensor-based frame selection

Brandoch Calef, Eric Therkildsen, Michael Roggemann

OE, Vol. 44, Issue 11, 116003, (November 2005) https://doi.org/10.1117/12.10.1117/1.2128634

KEYWORDS: Signal to noise ratio, Image processing, Sensors, Image quality, Turbulence, Wavefront sensors, Optical transfer functions, Telescopes, Optical engineering, Image restoration

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Proceedings Article | 30 August 2005 Paper

Performance analysis of Kalman filter and minimum variance controllers for multi conjugate adaptive optics

Piotr Piatrou, Michael Roggemann

Proceedings Volume 5894, 58940X (2005) https://doi.org/10.1117/12.614570

KEYWORDS: Adaptive optics, Turbulence, Filtering (signal processing), Error analysis, Autoregressive models, Atmospheric turbulence, Monte Carlo methods, Stars, Telescopes, Statistical analysis

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Proceedings Article | 25 August 2005 Paper

Prediction of the space-varying point spread function for reconstruction of anisoplanatic adaptive optics images

Mathieu Aubailly, Michael Roggemann, Timothy Schulz

Proceedings Volume 5903, 590308 (2005) https://doi.org/10.1117/12.639428

KEYWORDS: Point spread functions, Expectation maximization algorithms, Signal to noise ratio, Adaptive optics, Reconstruction algorithms, Deconvolution, Image restoration, Mathematical modeling, Inverse problems, Monte Carlo methods

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Proceedings Article | 24 August 2005 Paper

Eigen-focus beam control for target-in-the-loop

Timothy Schulz, Michael Roggemann, Baoyong Liu

Proceedings Volume 5895, 58950J (2005) https://doi.org/10.1117/12.619636

KEYWORDS: Beam controllers, Atmospheric propagation, Transmitters, Apodization, Mathematical modeling, Speckle, Binary data, Fourier transforms, Control systems, Computer engineering

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Proceedings Article | 23 August 2005 Paper

Beacon creation and characterization for beam control in strong turbulence

Michael Roggemann, Timothy Schulz, Alex Sergeyev, Grant Soehnel

Proceedings Volume 5895, 589506 (2005) https://doi.org/10.1117/12.619017

KEYWORDS: Turbulence, Rayleigh guide stars, Laser scattering, Atmospheric propagation, Light scattering, Scattering, Wave propagation, Rayleigh scattering, Transmitters, Scintillation

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Proceedings Article | 24 May 2005 Paper

Prediction of the off-axis point spread function for large field of view astronomical adaptive optics images

Mathieu Aubailly, Michael Roggemann, Timothy Schulz

Proceedings Volume 5814, (2005) https://doi.org/10.1117/12.603766

KEYWORDS: Point spread functions, Adaptive optics, Astronomical adaptive optics, Atmospheric turbulence, Space telescopes, Telescopes, Device simulation, Image resolution, Astronomy, Astronomical telescopes

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Proceedings Article | 18 October 2004 Paper

Fundamental considerations for wavefront sensing with extended random beacons

Michael Roggemann

Proceedings Volume 5552, (2004) https://doi.org/10.1117/12.563221

KEYWORDS: Laser scattering, Turbulence, Atmospheric propagation, Sensors, Surface plasmons, Scattering, Speckle, Wave propagation, Light scattering, Wavefront sensors

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Proceedings Article | 25 August 2004 Paper

Approaches for processing spectral measurements of reflected sunlight for space situational awareness

Marie-Astrid Cauquy, Michael Roggemann, Timothy Schulz

Proceedings Volume 5428, (2004) https://doi.org/10.1117/12.540919

KEYWORDS: Satellites, Databases, Signal to noise ratio, Expectation maximization algorithms, Error analysis, Spectroscopy, Reflectivity, Neural networks, Artificial neural networks, Sun

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Proceedings Article | 27 January 2004 Paper

Image sharpness metric-based deformable mirror control for beam projection systems operating in strong scintillation

Ronald Kizito, Michael Roggemann, Timothy Schulz, Yanchai Zhang

Proceedings Volume 5160, (2004) https://doi.org/10.1117/12.504081

KEYWORDS: Deformable mirrors, Projection systems, Image sensors, Atmospheric propagation, Turbulence, Atmospheric turbulence, Scintillation, Wavefront sensors, Laser beam propagation, Image processing

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Proceedings Article | 27 January 2004 Paper

Compensation of laser beam projection through turbulence in multimirror adaptive optics system with phase retrieval method

Yanchai Zhang, Michael Roggemann, Timothy Schulz, Ronald Kizito

Proceedings Volume 5160, (2004) https://doi.org/10.1117/12.502892

KEYWORDS: Turbulence, Near field, Phase retrieval, Deformable mirrors, Adaptive optics, Atmospheric propagation, Distortion, Laser beam propagation, Scintillation, Wave propagation

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Proceedings Article | 15 November 2002 Paper

Noise-limited resolution for space-based Earth-observing telescopes

Eric Magee, Michael Roggemann, Andrew Kondrath

Proceedings Volume 4824, (2002) https://doi.org/10.1117/12.451862

KEYWORDS: Signal to noise ratio, Spectral resolution, Diffraction, Spatial frequencies, Space telescopes, Telescopes, Imaging systems, Image resolution, Interference (communication), Spatial resolution

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Proceedings Article | 4 February 2002 Paper

Simulation and experimental results for a phase retrieval-based algorithm for far-field beam steering and shaping

Michael Roggemann, Byron Welsh, Bradley Stone, Ting Ei Su

Proceedings Volume 4494, (2002) https://doi.org/10.1117/12.454793

KEYWORDS: Wavefronts, Algorithm development, Control systems, Beam steering, Spatial light modulators, Telescopes, Statistical modeling, Optical simulations, Phase retrieval, Device simulation

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SPIE Journal Paper | 1 February 2002

Block matching algorithm for mitigating aliasing effects in undersampled image sequences

Michael Roggemann, William Reynolds

OE, Vol. 41, Issue 02, (February 2002) https://doi.org/10.1117/12.10.1117/1.1431250

KEYWORDS: Sensors, Image processing, Signal to noise ratio, Image quality, Reconstruction algorithms, Error analysis, Algorithm development, Optical engineering, Image sensors, Imaging systems

Proceedings Article | 21 August 2001 Paper

Sensor expansion through integration of microscanning and superresolution algorithms

William Reynolds, Denise Talcott, Michael Roggemann, John Hilgers, Timothy Schulz

Proceedings Volume 4373, (2001) https://doi.org/10.1117/12.438133

KEYWORDS: Sensors, Expectation maximization algorithms, Super resolution, Algorithm development, Image resolution, Passive millimeter wave sensors, Image processing, Diffraction, Point spread functions, Spatial resolution

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Proceedings Article | 22 November 2000 Paper

Far-field beam shaping and steering using phase-retrieval-based wavefront control

Bradley Stone, Byron Welsh, Michael Roggemann

Proceedings Volume 4124, (2000) https://doi.org/10.1117/12.407503

KEYWORDS: Wavefronts, Beam shaping, Control systems, Diffraction, Spatial light modulators, Beam steering, Speckle, Fourier transforms, Liquid crystals, Electro optical sensors

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Proceedings Article | 17 November 2000 Paper

Precision tropopause turbulence measurements

Leonard John Otten, Al Jones, Don Black, Joshua Lane, Ron Hugo, Jeffery Beyer, Michael Roggemann

Proceedings Volume 4125, (2000) https://doi.org/10.1117/12.409303

KEYWORDS: Turbulence, Sensors, Atmospheric modeling, Refraction, Atmospheric turbulence, Calibration, Data modeling, Signal attenuation, Precision measurement, Telecommunications

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Proceedings Article | 17 November 2000 Paper

Algorithm to reduce anisoplanatism effects on infrared images

Michael Roggemann, Byron Welsh, Troy Klein

Proceedings Volume 4125, (2000) https://doi.org/10.1117/12.409295

KEYWORDS: Turbulence, Imaging systems, Reconstruction algorithms, Point spread functions, Infrared sensors, Infrared imaging, Sensors, Image processing, Diffraction, Image restoration

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Proceedings Article | 17 November 2000 Paper

Tracking and higher-order correction tradeoffs for beam correction through strong turbulence

Byron Welsh, Michael Roggemann, Andrew Schepler

Proceedings Volume 4125, (2000) https://doi.org/10.1117/12.409308

KEYWORDS: Turbulence, Signal to noise ratio, Wavefronts, Atmospheric propagation, Wave propagation, Scintillation, Diffraction, Wavefront compensation, Sensors, Wavefront distortions

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Proceedings Article | 10 December 1999 Paper

High-bandwidth atmospheric-turbulence data collection platform

Leonard John Otten, Michael Roggemann, Bernard Jones, Joshua Lane, Don Black

Proceedings Volume 3866, (1999) https://doi.org/10.1117/12.371331

KEYWORDS: Turbulence, Sensors, Refraction, Atmospheric turbulence, Temperature metrology, Signal processing, Calibration, Correlation function, Data modeling, Information operations

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Proceedings Article | 5 October 1999 Paper

Phase-retrieval-based algorithms for far-field beam steering and shaping

Byron Welsh, Michael Roggemann, Greg Wilson

Proceedings Volume 3763, (1999) https://doi.org/10.1117/12.363611

KEYWORDS: Beam shaping, Wavefronts, Algorithm development, Beam steering, Control systems, Phase retrieval, Detection and tracking algorithms, Fourier transforms, Electro optical sensors, Sensors

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Proceedings Article | 5 October 1999 Paper

Cramer-Rao bounds for estimation of turbulence-induced wavefront aberrations

Timothy Schulz, Wei Sun, Michael Roggemann

Proceedings Volume 3763, (1999) https://doi.org/10.1117/12.363620

KEYWORDS: Sensors, Wavefront aberrations, Wavefronts, Imaging systems, Atmospheric propagation, Data modeling, Wave propagation, Atmospheric turbulence, Wavefront sensors, Image sensors

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Proceedings Article | 5 October 1999 Paper

Comparison of branch point and least-squares reconstructors for laser beam transmission through the atmosphere

Bo Wang, Alan Koivunen, Michael Roggemann

Proceedings Volume 3763, (1999) https://doi.org/10.1117/12.363625

KEYWORDS: Reconstruction algorithms, Wavefronts, Turbulence, Deformable mirrors, Wave propagation, Scintillation, Projection systems, Atmospheric propagation, Adaptive optics, Chromium

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Proceedings Article | 5 October 1999 Paper

Scintillation compensation for laser beam projection using segmented deformable mirrors

Michael Roggemann, Shilan Deng

Proceedings Volume 3763, (1999) https://doi.org/10.1117/12.363624

KEYWORDS: Deformable mirrors, Scintillation, Wavefronts, Wave propagation, Phase retrieval, Atmospheric propagation, Actuators, Mirrors, Fourier transforms, Turbulence

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Proceedings Article | 30 September 1999 Paper

Experimental results of joint processing of Hartmann sensor and conventional image measurements to estimate large aberrations

Michael Roggemann, Timothy Schulz, Chee Wai Ngai, Jason Kraft

Proceedings Volume 3815, (1999) https://doi.org/10.1117/12.364131

KEYWORDS: Image sensors, Sensors, Wavefronts, Image processing, Space telescopes, Error analysis, Telescopes, Cameras, Beam splitters, Wavefront sensors

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Proceedings Article | 8 December 1998 Paper

Joint processing of image plane and wavefront sensor information to measure large aberrations in optical systems

Michael Roggemann, Timothy Schulz, Byron Welsh, Chee Wai Ngai, Jason Kraft

Proceedings Volume 3430, (1998) https://doi.org/10.1117/12.332482

KEYWORDS: Sensors, Image sensors, Wavefronts, Image processing, Shearing interferometers, Zernike polynomials, Space telescopes, Telescopes, Information operations, Wavefront sensors

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Proceedings Article | 7 December 1998 Paper

Dual-beam atmospheric turbulence measurement system performance as a high-altitude turbulance scale size sensor

Leonard John Otten, Eugene Butler, Michael Roggemann, Anna Consortini

Proceedings Volume 3494, (1998) https://doi.org/10.1117/12.332411

KEYWORDS: Atmospheric turbulence, Atmospheric physics, Sensors, Atmospheric sensing, Atmospheric modeling, Atmospheric optics, LIDAR, Radar, Beryllium, Temporal resolution

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SPIE Journal Paper | 1 December 1998

Optical phase modulation using a refractive lenslet array and micro-electro-mechanical deformable mirror

William Cowan, Max Lee, Byron Welsh, Victor Bright, Michael Roggemann

OE, Vol. 37, Issue 12, (December 1998) https://doi.org/10.1117/12.10.1117/1.601998

KEYWORDS: Mirrors, Micromirrors, Point spread functions, Phase modulation, Cameras, Deformable mirrors, Reflectivity, Optical components, Beam steering, Thermal modeling

Proceedings Article | 3 November 1998 Paper

Evaluation of a maximum a-posteriori slope estimator for a Hartmann wavefront sensor

Troy Van Caster, Byron Welsh, Michael Roggemann

Proceedings Volume 3433, (1998) https://doi.org/10.1117/12.330224

KEYWORDS: Wavefronts, Sensors, Detector arrays, Photon counting, Computer simulations, Error analysis, Wavefront sensors, Statistical analysis, Signal detection, Atmospheric propagation

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Proceedings Article | 3 November 1998 Paper

Constrained least squares estimation incorporating wavefront sensing

Stephen Ford, Byron Welsh, Michael Roggemann

Proceedings Volume 3433, (1998) https://doi.org/10.1117/12.330225

KEYWORDS: Optical transfer functions, Telescopes, Statistical analysis, Atmospheric turbulence, Adaptive optics, Fourier transforms, Image processing, Computer simulations, Image analysis, Satellites

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Proceedings Article | 3 November 1998 Paper

Tilt compensation performance enhancement using off-axis higher-order modal wavefront measurements

Matthew Whiteley, Byron Welsh, Michael Roggemann

Proceedings Volume 3433, (1998) https://doi.org/10.1117/12.330238

KEYWORDS: Turbulence, Adaptive optics, Phase measurement, Laser guide stars, Stars, Imaging systems, Wavefronts, Wave propagation, Atmospheric propagation, Solids

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Proceedings Article | 11 September 1998 Paper

Comparison of image reconstruction algorithms using adaptive optics instrumentation

David Tyler, Stephen Ford, Bobby Hunt, Richard Paxman, Michael Roggemann, Janet Rountree, Timothy Schulz, Kathy Schulze, John Seldin, David Sheppard, Bruce Stribling, William van Kampen, Byron Welch

Proceedings Volume 3353, (1998) https://doi.org/10.1117/12.321659

KEYWORDS: Adaptive optics, Image restoration, Reconstruction algorithms, Turbulence, Optical transfer functions, Image analysis, Telescopes, Deconvolution, Image processing, Imaging systems

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Proceedings Article | 11 September 1998 Paper

Effect of modal atmospheric compensation on angular anisoplanatism in optical interferometric imaging

Matthew Whiteley, Byron Welsh, Michael Roggemann

Proceedings Volume 3353, (1998) https://doi.org/10.1117/12.321675

KEYWORDS: Visibility, Interferometers, Atmospheric optics, Interferometry, Turbulence, Optical imaging, Adaptive optics, Information operations, Wavefront sensors, Rubidium

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Proceedings Article | 8 September 1998 Paper

Optimal beam steering using time-delayed wavefront measurements in airborne laser target engagements

Matthew Whiteley, Michael Roggemann, Byron Welsh

Proceedings Volume 3381, (1998) https://doi.org/10.1117/12.323929

KEYWORDS: Beam steering, Wavefronts, Error analysis, Adaptive optics, Airborne laser technology, Time metrology, Atmospheric propagation, Wave propagation, Laser beam propagation, Zernike polynomials

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Proceedings Article | 8 September 1998 Paper

Two deformable mirror concept for correcting scintillation effects in laser beam projection

Michael Roggemann, David Lee

Proceedings Volume 3381, (1998) https://doi.org/10.1117/12.323926

KEYWORDS: Deformable mirrors, Scintillation, Wavefronts, Atmospheric propagation, Phase retrieval, Wave propagation, Mirrors, Telescopes, Fourier transforms, Laser beam propagation

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SPIE Journal Paper | 1 September 1998

Reconstruction of turbulence-degraded images using the vector Wiener filter

Stephen Ford, Byron Welsh, Michael Roggemann

OE, Vol. 37, Issue 09, (September 1998) https://doi.org/10.1117/12.10.1117/1.601773

KEYWORDS: Filtering (signal processing), Optical transfer functions, Signal to noise ratio, Spatial frequencies, Atmospheric turbulence, Image filtering, Turbulence, Electronic filtering, Fourier transforms, Deconvolution

Proceedings Article | 31 October 1997 Paper

Reconstruction of turbulence-degraded images using the vector Wiener filter

Stephen Ford, Byron Welsh, Michael Roggemann

Proceedings Volume 3170, (1997) https://doi.org/10.1117/12.279719

KEYWORDS: Filtering (signal processing), Optical transfer functions, Signal to noise ratio, Spatial frequencies, Image processing, Deconvolution, Adaptive optics, Speckle imaging, Astronomy, Signal attenuation

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Proceedings Article | 31 October 1997 Paper

Cramer-Rao analysis of phase diversity imaging

David Lee, Byron Welsh, Michael Roggemann

Proceedings Volume 3170, (1997) https://doi.org/10.1117/12.279718

KEYWORDS: Monte Carlo methods, Wavefront sensors, Numerical simulations, Computer simulations

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Proceedings Article | 30 October 1997 Paper

Diagnosing unknown aberrations in an adaptive optics system using phase diversity

David Lee, Byron Welsh, Michael Roggemann, Brent Ellerbroek

Proceedings Volume 3164, (1997) https://doi.org/10.1117/12.279583

KEYWORDS: Adaptive optics, Image sensors, Wavefront sensors, Imaging systems, Phase measurement

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Proceedings Article | 17 October 1997 Paper

Clustering of wavefront sensor subapertures to improve adaptive optics system performance

Robert Brigantic, Michael Roggemann, Byron Welsh, Kenneth Bauer

Proceedings Volume 3126, (1997) https://doi.org/10.1117/12.279061

KEYWORDS: Adaptive optics, Visualization, Wavefront sensors, Actuators, Optical transfer functions, Wavefronts, Intelligence systems, Imaging systems, Deformable mirrors, Control systems

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Proceedings Article | 17 October 1997 Paper

Experimental demonstration of using microelectromechanical deformable mirrors to control optical aberrations

Michael Roggemann, Victor Bright, Byron Welsh, Shaun Hick, Peter Roberts, William Cowan, John Comtois

Proceedings Volume 3126, (1997) https://doi.org/10.1117/12.279038

KEYWORDS: Mirrors, Wavefronts, Point spread functions, Micromirrors, Deformable mirrors, Microelectromechanical systems, Electrodes, Reflection, Cameras, Reflectivity

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Proceedings Article | 17 October 1997 Paper

Closed-loop bandwidth optimization to maximize adaptive optics system performance

Robert Brigantic, Michael Roggemann, Byron Welsh, Kenneth Bauer

Proceedings Volume 3126, (1997) https://doi.org/10.1117/12.279062

KEYWORDS: Adaptive optics, Visualization, Intelligence systems, Optical transfer functions, Imaging systems, Radon, Atmospheric optics, Control systems, Image sensors, Sensors

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Proceedings Article | 17 October 1997 Paper

Correcting for amplitude effects in laser-beam propagation through the turbulent atmosphere using a two-deformable-mirror technique

Michael Roggemann, David Lee

Proceedings Volume 3126, (1997) https://doi.org/10.1117/12.279041

KEYWORDS: Deformable mirrors, Wavefronts, Phase retrieval, Atmospheric propagation, Scintillation, Mirrors, Wave propagation, Turbulence, Distortion, Telescopes

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Proceedings Article | 23 September 1997 Paper

Estimation of satellite orientation from space surveillance imagery measured with an adaptive optics telescope

Gregory Wood, Michael Roggemann, Byron Welsh

Proceedings Volume 3125, (1997) https://doi.org/10.1117/12.279025

KEYWORDS: Satellites, Image filtering, Satellite imaging, Digital filtering, Space telescopes, Adaptive optics, Visualization, Detection and tracking algorithms, Databases, Telescopes

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Proceedings Article | 23 September 1997 Paper

Deconvolution from wavefront sensing with optimal wavefront estimation techniques

Scott Maethner, Michael Roggemann, Byron Welsh

Proceedings Volume 3125, (1997) https://doi.org/10.1117/12.279024

KEYWORDS: Wavefronts, Zernike polynomials, Signal to noise ratio, Telescopes, Optical transfer functions, Space telescopes, Device simulation, Atmospheric optics, Adaptive optics, Wavefront sensors

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Proceedings Article | 23 September 1997 Paper

Performance analysis of a Hartmann wavefront sensor used for sensing atmospheric turbulence statistics

Byron Welsh, Toby Reeves, Michael Roggemann

Proceedings Volume 3125, (1997) https://doi.org/10.1117/12.279027

KEYWORDS: Signal to noise ratio, Turbulence, Wavefronts, Wavefront sensors, Atmospheric turbulence, Statistical analysis, Zernike polynomials, Solids, Correlation function, Imaging systems

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SPIE Journal Paper | 1 May 1997

Use of micro-electro-mechanical deformable mirrors to control aberrations in optical systems: theoretical and experimental results

Michael Roggemann, Victor Bright, Byron Welsh, Shaun Hick, Peter Roberts, William Cowan, John Comtois

OE, Vol. 36, Issue 05, (May 1997) https://doi.org/10.1117/12.10.1117/1.601355

KEYWORDS: Mirrors, Micromirrors, Point spread functions, Wavefronts, Deformable mirrors, Reflectivity, Diffraction, Aberration correction, Reflection, Control systems

SPIE Journal Paper | 1 December 1996

Detection of military vehicles using infrared spectral radiometric signatures

Matthew Whiteley, Michael Roggemann, Ray Johnson, Steven Rogers

OE, Vol. 35, Issue 12, (December 1996) https://doi.org/10.1117/12.10.1117/1.601089

KEYWORDS: Target detection, Error analysis, Infrared signatures, Sensors, Infrared radiation, Black bodies, Optical engineering, Temperature metrology, Missiles, Infrared detectors

Proceedings Article | 1 November 1996 Paper

Using wavefront sensor information in image post-processing to improve the resolution of telescopes with small aberrations

David Lee, Michael Roggemann, Byron Welsh

Proceedings Volume 2863, (1996) https://doi.org/10.1117/12.256253

KEYWORDS: Optical transfer functions, Space telescopes, Wavefront sensors, Signal to noise ratio, Telescopes, Device simulation, Spatial frequencies, Wavefronts, Deconvolution, Adaptive optics

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Proceedings Article | 25 October 1996 Paper

Photon noise limits to the detection of closure phase for interferometric measurements of earth-orbiting satellites

Michael Roggemann, Matthew Whiteley

Proceedings Volume 2827, (1996) https://doi.org/10.1117/12.255088

KEYWORDS: Visibility, Interferometers, Phase measurement, Satellites, Atmospheric turbulence, Interferometry, Sensors, Fourier transforms, Spatial frequencies, Information operations

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Proceedings Article | 25 October 1996 Paper

Iterative model-based image reconstruction using a constrained least-squares technique

Michael Roggemann, David Tyler

Proceedings Volume 2827, (1996) https://doi.org/10.1117/12.255080

KEYWORDS: Optical transfer functions, Image filtering, Model-based design, Image restoration, Data modeling, Reconstruction algorithms, Imaging systems, Information operations, Error analysis, Fourier transforms

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Proceedings Article | 25 October 1996 Paper

Maximum a priori estimation of wavefront slopes using a Hartmann wavefront sensor

Scott Sallberg, Byron Welsh, Michael Roggemann

Proceedings Volume 2827, (1996) https://doi.org/10.1117/12.255090

KEYWORDS: Wavefronts, Error analysis, Statistical analysis, Adaptive optics, Wavefront sensors, Photon counting, Turbulence, Atmospheric turbulence, Imaging systems, Telescopes

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Proceedings Article | 14 October 1996 Paper

Quantification of frozen flow properties for a turbulent mixing layer of helium and nitrogen gas

Patrick Gardner, Michael Roggemann, Byron Welsh

Proceedings Volume 2828, (1996) https://doi.org/10.1117/12.254174

KEYWORDS: Turbulence, Wavefronts, Helium, Nitrogen, Cameras, Light wave propagation, Imaging systems, Imaging arrays, Optical testing, Channel projecting optics

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Proceedings Article | 14 October 1996 Paper

Characterization of atmospheric turbulence using wavefront slope measurements

Eric Silbaugh, Byron Welsh, Michael Roggemann

Proceedings Volume 2828, (1996) https://doi.org/10.1117/12.254169

KEYWORDS: Wavefronts, Turbulence, Atmospheric turbulence, Wavefront sensors, Imaging systems, Error analysis, Sensors, Atmospheric optics, Phase measurement, Motion measurement

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Proceedings Article | 14 October 1996 Paper

Atmospheric turbulence characterization of a low-altitude long horizontal path

Wesley Bernard, Byron Welsh, Michael Roggemann, Robert Feldmann

Proceedings Volume 2828, (1996) https://doi.org/10.1117/12.254168

KEYWORDS: Scintillation, Turbulence, Wavefronts, Atmospheric propagation, Atmospheric turbulence, Atmospheric optics, Cameras, Data communications, Data modeling, Wavefront sensors

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Proceedings Article | 14 October 1996 Paper

Optimum exposure time for speckle imaging through the atmosphere using the bispectrum technique

Kimberley McCrae, Michael Roggemann, Byron Welsh

Proceedings Volume 2828, (1996) https://doi.org/10.1117/12.254188

KEYWORDS: Signal to noise ratio, Spatial frequencies, Radon, Speckle imaging, Optical transfer functions, Speckle interferometry, Turbulence, Photons, Telescopes, Computer simulations

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SPIE Journal Paper | 1 April 1996

Frame selection performance limits for statistical image reconstruction of adaptive optics compensated images

Stephen Ford, Michael Roggemann, Byron Welsh

OE, Vol. 35, Issue 04, (April 1996) https://doi.org/10.1117/12.10.1117/1.600719

KEYWORDS: Signal to noise ratio, Adaptive optics, Point spread functions, Image processing, Image quality, Optical transfer functions, Satellites, Deconvolution, Telescopes, Actuators

Proceedings Article | 29 September 1995 Paper

Statistical assessment of optical phase fluctuations through turbulent mixing layers

Patrick Gardner, Michael Roggemann, Byron Welsh, Rodney Bowersox

Proceedings Volume 2546, (1995) https://doi.org/10.1117/12.221523

KEYWORDS: Turbulence, Wavefronts, Shearing interferometers, Phase measurement, Atmospheric propagation, Atmospheric modeling, Visualization, Gases, Helium, Nitrogen

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Proceedings Article | 25 August 1995 Paper

Atmospheric turbulence-induced phase screen generator for simulating the effects of finite outer scale, time delays, and anisoplanatism

Michael Roggemann, Byron Welsh, Cynthia Hyde

Proceedings Volume 2534, (1995) https://doi.org/10.1117/12.217762

KEYWORDS: Turbulence, Atmospheric modeling, Point spread functions, Atmospheric turbulence, Imaging systems, Adaptive optics, Telescopes, Computer simulations, Statistical analysis, Device simulation

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Proceedings Article | 25 August 1995 Paper

Noise reduction and key atmospheric parameter estimation using artificial neural networks

Dennis Montera, Byron Welsh, Michael Roggemann, Dennis Ruck

Proceedings Volume 2534, (1995) https://doi.org/10.1117/12.217753

KEYWORDS: Neural networks, Interference (communication), Error analysis, Denoising, Signal to noise ratio, Adaptive optics, Wavefronts, Artificial neural networks, Chemical elements, Wavefront sensors

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Proceedings Article | 25 August 1995 Paper

Frame selection performance limits for statistical image reconstruction of adaptive optics compensated images

Stephen Ford, Michael Roggemann, Byron Welsh

Proceedings Volume 2534, (1995) https://doi.org/10.1117/12.217742

KEYWORDS: Signal to noise ratio, Adaptive optics, Optical transfer functions, Point spread functions, Image quality, Image processing, Satellites, Deconvolution, Imaging systems, Atmospheric turbulence

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Proceedings Article | 25 August 1995 Paper

Shot noise performance of Hartmann and shearing interferometer wavefront sensors

Byron Welsh, Brent Ellerbroek, Michael Roggemann, Timothy Pennington

Proceedings Volume 2534, (1995) https://doi.org/10.1117/12.217746

KEYWORDS: Sensors, Wavefronts, Wavefront sensors, Atmospheric turbulence, Shearing interferometers, Atmospheric optics, Adaptive optics, Signal detection, Optical transfer functions, Visibility

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Proceedings Article | 15 June 1995 Paper

Optical propagation in non-Kolmogorov atmospheric turbulence

Bruce Stribling, Byron Welsh, Michael Roggemann

Proceedings Volume 2471, (1995) https://doi.org/10.1117/12.211927

KEYWORDS: Turbulence, Wave propagation, Atmospheric propagation, Polonium, Refraction, Imaging systems, Atmospheric optics, Atmospheric turbulence, Atmospheric modeling, Spherical lenses

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Proceedings Article | 2 June 1995 Paper

Satellite surface material composition from synthetic spectra

Eugene Caudill, Michael Roggemann, Byron Welch, Steven Rogers

Proceedings Volume 2469, (1995) https://doi.org/10.1117/12.210602

KEYWORDS: Signal to noise ratio, Error analysis, Satellites, Sagnac interferometers, Sensors, Fourier transforms, Data analysis, Feature extraction, Reflectivity, Space telescopes

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SPIE Journal Paper | 1 May 1995

Sensing three-dimensional index-of-refraction variations by means of optical wavefront sensor measurements and tomographic reconstruction

Michael Roggemann, Byron Welsh, Patrick Gardner, Robert Johnson, Byron Pedersen

OE, Vol. 34, Issue 05, (May 1995) https://doi.org/10.1117/12.10.1117/12.199870

KEYWORDS: Wavefronts, Tomography, Wavefront sensors, Refraction, Turbulence, Phase measurement, Optical testing, Reconstruction algorithms, Sensors, 3D metrology

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SPIE Journal Paper | 1 October 1994

Image-spectrum signal-to-noise-ratio improvements by statistical frame selection for adaptive-optics imaging through atmospheric turbulence

Michael Roggemann, Craig Stoudt, Byron Welsh

OE, Vol. 33, Issue 10, (October 1994) https://doi.org/10.1117/12.10.1117/12.181250

KEYWORDS: Signal to noise ratio, Image processing, Telescopes, Image quality, Optical transfer functions, Spatial frequencies, Atmospheric turbulence, Adaptive optics, Statistical analysis, Device simulation

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Proceedings Article | 30 September 1994 Paper

Signal-to-noise comparison of deconvoution from wavefront sensing and speckle imaging

Byron Welsh, Michael Roggemann

Proceedings Volume 2302, (1994) https://doi.org/10.1117/12.188046

KEYWORDS: Image restoration, Signal to noise ratio, Speckle imaging, Point spread functions, Wavefront sensors, Deconvolution, Wavefronts, Atmospheric turbulence, Imaging systems, Distortion

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Proceedings Article | 30 September 1994 Paper

Frame selection for adaptive optics imaging through atmospheric turbulence

Michael Roggemann, Byron Welsh, Stephen Ford, Craig Stoudt

Proceedings Volume 2302, (1994) https://doi.org/10.1117/12.188067

KEYWORDS: Signal to noise ratio, Image processing, Image quality, Adaptive optics, Point spread functions, Telescopes, Optical transfer functions, Atmospheric turbulence, Image restoration, Device simulation

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Proceedings Article | 1 June 1994 Paper

Widening the effective field of view of adaptive optics telescopes using deconvolution from wavefront sensing

Michael Roggemann, Brent Ellerbroek, Troy Rhoadarmer

Proceedings Volume 2198, (1994) https://doi.org/10.1117/12.176755

KEYWORDS: Optical transfer functions, Adaptive optics, Signal to noise ratio, Telescopes, Wavefront sensors, Turbulence, Image processing, Actuators, Deconvolution, Deformable mirrors

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Proceedings Article | 1 June 1994 Paper

Optimal SNR exposure time for speckle imaging: experimental results with frequency-dependent detector noise

David Tyler, Andrew Suzuki, Mark Von Bokern, Donna Keating, Michael Roggemann

Proceedings Volume 2198, (1994) https://doi.org/10.1117/12.176694

KEYWORDS: Signal to noise ratio, Cameras, Speckle imaging, Spatial frequencies, Sensors, Telescopes, Speckle, Optical transfer functions, Charge-coupled devices, Adaptive optics

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Proceedings Article | 1 June 1994 Paper

Noise reduction in adaptive optics imagery with the use of support constraints

Charles Matson, Michael Roggemann

Proceedings Volume 2198, (1994) https://doi.org/10.1117/12.176695

KEYWORDS: Reconstruction algorithms, Super resolution, Telescopes, Adaptive optics, Deconvolution, Denoising, Computer simulations, Satellites, Signal to noise ratio, Space telescopes

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Proceedings Article | 31 May 1994 Paper

Performance comparison of the shearing interferometer and Hartmann wavefront sensor

Timothy Pennington, Byron Welsh, Michael Roggemann

Proceedings Volume 2201, (1994) https://doi.org/10.1117/12.176086

KEYWORDS: Sensors, Wavefronts, Wavefront sensors, Shearing interferometers, Photons, Adaptive optics, Astronomy, Fringe analysis, Atmospheric turbulence, Sensor performance

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Proceedings Article | 31 May 1994 Paper

Anisoplanatism effects on diffraction-based performance calculations in adaptive optical systems

Steven Troxel, Byron Welsh, Michael Roggemann

Proceedings Volume 2201, (1994) https://doi.org/10.1117/12.176041

KEYWORDS: Optical transfer functions, Signal to noise ratio, Adaptive optics, Diffraction, Turbulence, Correlation function, Wavefronts, Atmospheric optics, Astronomy, Atmospheric modeling

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Proceedings Article | 9 November 1993 Paper

Adaptive imaging through far-field turbulence

Steven Troxel, Byron Welsh, Michael Roggemann

Proceedings Volume 2029, (1993) https://doi.org/10.1117/12.162014

KEYWORDS: Optical transfer functions, Turbulence, Geometrical optics, Wavefronts, Diffraction, Atmospheric optics, Image restoration, Atmospheric propagation, Adaptive optics, Wave propagation

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Proceedings Article | 9 November 1993 Paper

Use of wavefront-sensor measurements to reconstruct images in partially compensated imaging systems with finite bandwidth

Michael Roggemann

Proceedings Volume 2029, (1993) https://doi.org/10.1117/12.162008

KEYWORDS: Wavefront sensors, Signal to noise ratio, Wavefronts, Optical transfer functions, Actuators, Telescopes, Deformable mirrors, Speckle, Holography, Adaptive optics

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Proceedings Article | 29 December 1992 Paper

Image restoration using nonlinear optimization techniques for partially compensated imaging systems

Richard Carreras, Michael Roggemann

Proceedings Volume 1767, (1992) https://doi.org/10.1117/12.139044

KEYWORDS: Imaging systems, Image restoration, Electronic filtering, Image processing, Computer programming, Point spread functions, Inverse problems, Scattering, Optical transfer functions, Diagnostics

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Proceedings Article | 1 August 1992 Paper

Effect of wavefront undersampling on signal-to-noise ratio in adaptive-optics systems

David Tyler, Michael Roggemann

Proceedings Volume 1688, (1992) https://doi.org/10.1117/12.137923

KEYWORDS: Signal to noise ratio, Adaptive optics, Wavefronts, Actuators, Telescopes, Sensors, Atmospheric propagation, Wavefront sensors, Spatial frequencies, Remote sensing

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Proceedings Article | 1 August 1992 Paper

Effects of predetection atmospheric compensation and postdetection image processing on imagery collected at a ground-based telescope

Marsha Bilmont, Michael Roggemann, David Tyler, Mark Von Bokern, John Albetski

Proceedings Volume 1688, (1992) https://doi.org/10.1117/12.137917

KEYWORDS: Stars, Telescopes, Spatial frequencies, Speckle, Wavefront sensors, Imaging systems, Image processing, Atmospheric turbulence, Atmospheric optics, Atmospheric propagation

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Proceedings Article | 1 December 1991 Paper

Partially compensated speckle imaging: Fourier phase spectrum estimation

Michael Roggemann, Charles Matson

Proceedings Volume 1542, (1991) https://doi.org/10.1117/12.48831

KEYWORDS: Actuators, Signal to noise ratio, Image processing, Adaptive optics, Speckle imaging, Telescopes, Image quality, Atmospheric optics, Error analysis, Atmospheric turbulence

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SPIE Journal Paper | 1 April 1991

Segmentation of noisy range images using the small-scale planarity of man-made vehicles

Michael Roggemann, James Mills, Steven Rogers, Matthew Kabrisky

OE, Vol. 30, Issue 04, (April 1991) https://doi.org/10.1117/12.10.1117/12.55811

KEYWORDS: Image segmentation, Image processing algorithms and systems, Error analysis, Sensors, Detection and tracking algorithms, Statistical analysis, Databases, Image processing, Spatial resolution, Digital filtering

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Showing 5 of 114 publications

Proceedings Volume Editor (4)

SPIE Conference Volume | 4 February 2002

Adaptive Optics Systems and Technology II

SPIE Conference Volume | 17 November 2000

Propagation and Imaging through the Atmosphere IV

SPIE Conference Volume | 5 October 1999

Propagation and Imaging through the Atmosphere III

SPIE Conference Volume | 9 November 1993

Digital Image Recovery and Synthesis II

Conference Committee Involvement (22)

Unconventional Imaging and Wavefront Sensing XII

31 August 2016 | San Diego, California, United States

Unconventional Imaging and Wavefront Sensing XI

13 August 2015 | San Diego, California, United States

Unconventional Imaging and Wavefront Sensing X

21 August 2014 | San Diego, California, United States

Laser Communication and Propagation through the Atmosphere and Oceans III

17 August 2014 | San Diego, California, United States

Unconventional Imaging and Wavefront Sensing IX

26 August 2013 | San Diego, California, United States

Adaptive X-Ray Optics II

14 August 2012 | San Diego, California, United States

Unconventional Imaging and Wavefront Sensing VIII

13 August 2012 | San Diego, California, United States

Acquisition, Tracking, Pointing, and Laser Systems Technologies XXVI

23 April 2012 | Baltimore, Maryland, United States

Unconventional Imaging and Wavefront Sensing VII

21 August 2011 | San Diego, California, United States

Acquisition, Tracking, Pointing, and Laser Systems Technologies XXV

25 April 2011 | Orlando, Florida, United States

Adaptive X-Ray Optics

3 August 2010 | San Diego, California, United States

Free-Space Laser Communications X

2 August 2010 | San Diego, California, United States

Atmospheric Optics: Models, Measurements, and Target-in-the-Loop Propagation III

3 August 2009 | San Diego, California, United States

Atmospheric Optics: Models, Measurements, and Target-in-the-Loop Propagation II

12 August 2008 | San Diego, California, United States

Fifteenth International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics

22 June 2008 | Krasnoyarsk, Russian Federation

Atmospheric Optics: Models, Measurements, and Target-in-the-Loop Propagation

27 August 2007 | San Diego, California, United States

Target-in-the-Loop: Atmospheric Tracking, Imaging, and Compensation II

3 August 2005 | San Diego, California, United States

Target-in-the-Loop: Atmospheric Tracking, Imaging, and Compensation

4 August 2004 | Denver, Colorado, United States

Adaptive Optics Systems and Technology II

30 July 2001 | San Diego, CA, United States

Propagation and Imaging through the Atmosphere IV

3 August 2000 | San Diego, CA, United States

Propagation and Imaging through the Atmosphere III

22 July 1999 | Denver, CO, United States

Digital Image Recovery and Synthesis II

12 July 1993 | San Diego, CA, United States

Showing 5 of 22 Conference Committees

Course Instructor

SC196: Imaging Through Turbulence

Atmospheric turbulence limits the resolution of systems which must form images using light which has passed through the atmosphere. The strength of these effects depends upon the imaging geometry and turbulence conditions. This course presents techniques for understanding and predicting the effects of turbulence on imaging systems, and looks at strategies for overcoming these effects. Included in the course are the basics of post detection image processing techniques, and adaptive optics. Emphasis is placed on analytic and simulation-based methods to predict turbulence effects and the performance of various correction schemes.

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