Dr. David R. Gerwe Profile

Dr. David R. Gerwe

Technical Fellow at Boeing Phantom Works

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Author

Publications (16)

Proceedings Article | 29 July 2014 Paper

Cramer-Rao lower bound and object reconstruction performance evaluation for intensity interferometry

Jean Dolne, David Gerwe, Peter Crabtree

Proceedings Volume 9146, 914636 (2014) https://doi.org/10.1117/12.2063418

KEYWORDS: Interferometry, Signal to noise ratio, Spatial frequencies, Reconstruction algorithms, Error analysis, Fourier transforms, Image analysis, Image restoration, Image resolution, Visibility

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Proceedings Article | 17 September 2013 Paper

Comparison of forward models and phase retrieval for image formation from intensity interferometer data

David Gerwe, Peter Crabtree, Richard Holmes, Jean Dolne

Proceedings Volume 8877, 88770F (2013) https://doi.org/10.1117/12.2026974

KEYWORDS: Signal to noise ratio, Phase retrieval, Data modeling, Image restoration, Reconstruction algorithms, Evolutionary algorithms, Interferometers, Interferometry, Artificial intelligence, Algorithm development

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Proceedings Article | 17 September 2013 Paper

Cramér-Rao bounds for variance of Fourier magnitude measurements

Richard Holmes, Brandoch Calef, David Gerwe, Jean Dolne, Peter Crabtree

Proceedings Volume 8877, 88770H (2013) https://doi.org/10.1117/12.2026971

KEYWORDS: Signal to noise ratio, Interferometry, Image acquisition, Solids, Error analysis, Spatial frequencies, Fourier transforms, Speckle imaging, Transform theory, Analytical research

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Proceedings Article | 24 January 2011 Paper

High precision object segmentation and tracking for use in super resolution video reconstruction

T. Nathan Mundhenk, Rashmi Sundareswara, David Gerwe, Yang Chen

Proceedings Volume 7878, 78780G (2011) https://doi.org/10.1117/12.871605

KEYWORDS: Image segmentation, Super resolution, Video, Image restoration, Image enhancement, Motion estimation, Cameras, Motion detection, Motion models, Visualization

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Proceedings Article | 7 September 2006 Paper

Comparison of maximum-likelihood image and wavefront reconstruction using conventional image, phase diversity, and lenslet diversity data

David Gerwe, Jim Stone, Carlos Luna, Brandoch Calef

Proceedings Volume 6307, 630707 (2006) https://doi.org/10.1117/12.683013

KEYWORDS: Wavefronts, Point spread functions, Staring arrays, Wavefront sensors, Sensors, Image restoration, Speckle, Signal to noise ratio, Deconvolution, Wavefront aberrations

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Proceedings Article | 23 August 2005 Paper

Regularization for non-linear image restoration using a prior on the object power spectrum

David Gerwe, Malani Jain, Brandoch Calef, Carlos Luna

Proceedings Volume 5896, 589604 (2005) https://doi.org/10.1117/12.614451

KEYWORDS: Signal to noise ratio, Filtering (signal processing), Visualization, Reconstruction algorithms, Point spread functions, Satellites, Image restoration, Image quality, Image processing, Staring arrays

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Proceedings Article | 23 August 2005 Paper

Phase diverse wavefront estimation and image restoration with a magnification change between imaging channels

Carlos Luna, David Gerwe, Brandoch Calef

Proceedings Volume 5896, 58960H (2005) https://doi.org/10.1117/12.614465

KEYWORDS: Staring arrays, Wavefronts, Sensors, Image processing, Point spread functions, Data modeling, Telescopes, Signal to noise ratio, Image acquisition, Convolution

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Proceedings Article | 21 August 2003 Paper

Closed-loop control for adaptive optics wavefront compensation in highly scintillated conditions

David Gerwe, James Stone, Harold Schall

Proceedings Volume 5087, (2003) https://doi.org/10.1117/12.487319

KEYWORDS: Phase measurement, Wavefronts, Adaptive optics, Wavefront sensors, Control systems, Scintillation, Sensors, Reconstruction algorithms, Interferometers, Atmospheric propagation

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SPIE Journal Paper | 1 September 2002

Supersampling multiframe blind deconvolution resolution enhancement of adaptive optics compensated imagery of low earth orbit satellites

David Gerwe, David Lee, Jeffrey Barchers

OE, Vol. 41, Issue 09, (September 2002) https://doi.org/10.1117/12.10.1117/1.1497615

KEYWORDS: Staring arrays, Point spread functions, Deconvolution, Image resolution, Turbulence, Adaptive optics, Telescopes, Reconstruction algorithms, Satellite imaging, Satellites

Proceedings Article | 27 December 2001 Paper

Cramer-Rao bound analysis of target characterization accuracy limits for imaging systems

David Gerwe, Paul Idell, Joel Vaughn

Proceedings Volume 4490, (2001) https://doi.org/10.1117/12.455433

KEYWORDS: Sensors, Staring arrays, Image sensors, Imaging systems, Statistical analysis, Hubble Space Telescope, Point spread functions, Chemical elements, 3D acquisition, Satellites

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Proceedings Article | 31 October 2000 Paper

Supersampling multiframe blind deconvolution resolution enhancement of adaptive-optics-compensated imagery of LEO satellites

David Gerwe, David Lee, Jeffrey Barchers

Proceedings Volume 4091, (2000) https://doi.org/10.1117/12.405776

KEYWORDS: Staring arrays, Point spread functions, Diffraction, Image resolution, Telescopes, Adaptive optics, Satellites, Satellite imaging, Deconvolution, Statistical analysis

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Proceedings Article | 30 September 1999 Paper

Multiframe deconvolution with photon and CCD noise

David Gerwe

Proceedings Volume 3815, (1999) https://doi.org/10.1117/12.364124

KEYWORDS: Charge-coupled devices, Deconvolution, Point spread functions, Imaging systems, Stars, Interference (communication), Image restoration, Adaptive optics, Signal to noise ratio, Computer simulations

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Proceedings Article | 30 September 1999 Paper

Performance of three reconstruction methods on blurred and noisy images of extended scenes

Jean Dolne, David Gerwe, Michael Johnson

Proceedings Volume 3815, (1999) https://doi.org/10.1117/12.364126

KEYWORDS: Point spread functions, Deconvolution, Reconstruction algorithms, Signal to noise ratio, Atmospheric optics, Imaging systems, Diffraction, Error analysis, Adaptive optics, Wavefronts

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Proceedings Article | 26 June 1996 Paper

Speckle imaging of coherent sources

David Gerwe, Martin Plonus, Bahira Elsebelgy

Proceedings Volume 2748, (1996) https://doi.org/10.1117/12.243557

KEYWORDS: Turbulence, Fourier transforms, Expectation maximization algorithms, Statistical analysis, Coherence imaging, Atmospheric turbulence, Point spread functions, Diffraction, Error analysis, Oscillators

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Proceedings Article | 15 December 1995 Paper

Long-exposure imaging through weak turbulence

David Gerwe, Martin Plonus, Bahira Elsebelgy

Proceedings Volume 2580, (1995) https://doi.org/10.1117/12.228496

KEYWORDS: Turbulence, Imaging systems, Super resolution, Image resolution, Polonium, Diffraction, Coherence imaging, Modulation, Spatial frequencies, Spherical lenses

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Proceedings Article | 15 December 1995 Paper

Double-passage imaging through a random phase screen using coherent illumination

Bahira Elsebelgy, Martin Plonus, David Gerwe

Proceedings Volume 2580, (1995) https://doi.org/10.1117/12.228495

KEYWORDS: Mirrors, Spatial frequencies, Imaging systems, Transmittance, Turbulence, Wave propagation, Image quality, Spatial resolution, Convolution, Phase shifts

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Showing 5 of 16 publications

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