Dr. David A. Yocky Profile

Dr. David A. Yocky

Distinguished Member of the Technical Staff at Sandia National Labs

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Author

Publications (14)

Proceedings Article | 15 May 2020 Paper

Hyperspectral vegetation identification utilizing polynomial fitting for dimensionality reduction

John van der Laan, Brian Redman, Dylan Anderson, R. Derek West, David Yocky

Proceedings Volume 11416, 114160S (2020) https://doi.org/10.1117/12.2558172

KEYWORDS: Vegetation, Principal component analysis, Image segmentation, Spatial resolution, Hyperspectral imaging, Scene classification, Near infrared, Quantitative analysis

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Proceedings Article | 21 April 2020 Presentation + Paper

Robust terrain classification of high spatial resolution remote sensing data employing probabilistic feature fusion and pixelwise voting

R. Derek West, Brian Redman, David Yocky, John van der Laan, Dylan Anderson

Proceedings Volume 11398, 113980F (2020) https://doi.org/10.1117/12.2558196

KEYWORDS: Data modeling, Synthetic aperture radar, Spatial resolution, Remote sensing, Image segmentation, Vegetation, Image classification, Sensors

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Proceedings Article | 1 May 2017 Presentation + Paper

VideoSAR collections to image underground chemical explosion surface phenomena

David Yocky, Terry Calloway, Daniel Wahl

Proceedings Volume 10188, 101880L (2017) https://doi.org/10.1117/12.2258268

KEYWORDS: LIDAR, Radar, Sensors, Image registration, Interferometry, Phase measurement, Synthetic aperture radar, Physics, Radar imaging, Interferometric synthetic aperture radar, X band, Coherence (optics), Defense and security

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Proceedings Article | 3 May 2012 Paper

Generating lunar bistatic SAR images using Arecibo and Mini-RF

Daniel Wahl, David Yocky, Ben Bussey, Charles Jakowatz

Proceedings Volume 8394, 83940D (2012) https://doi.org/10.1117/12.923600

KEYWORDS: Synthetic aperture radar, Polarization, Radar, Polarimetry, Image acquisition, Observatories, Transmitters, Receivers, Antennas, Visualization

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Proceedings Article | 19 April 2010 Paper

A beamforming algorithm for bistatic SAR image formation

Charles Jakowatz, Daniel Wahl, David Yocky

Proceedings Volume 7699, 769902 (2010) https://doi.org/10.1117/12.851871

KEYWORDS: Synthetic aperture radar, Image acquisition, Algorithm development, Transmitters, Receivers, Visualization, Image compression, 3D modeling, Radar, Antennas

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Proceedings Article | 15 April 2008 Paper

An implementation of a fast backprojection image formation algorithm for spotlight-mode SAR

Daniel Wahl, David Yocky, Charles Jakowatz

Proceedings Volume 6970, 69700H (2008) https://doi.org/10.1117/12.779401

KEYWORDS: Synthetic aperture radar, Digital filtering, Reconstruction algorithms, Detection and tracking algorithms, Samarium, Image acquisition, Linear filtering, 3D image processing, Image processing, Image filtering

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Proceedings Article | 15 April 2008 Paper

Beamforming as a foundation for spotlight-mode SAR image formation by backprojection

Charles Jakowatz, Daniel Wahl, David Yocky

Proceedings Volume 6970, 69700Q (2008) https://doi.org/10.1117/12.779305

KEYWORDS: Synthetic aperture radar, Image acquisition, Radar, Wavefronts, Phased arrays, Digital imaging, Image processing, Reflectivity, Reflectors, Tomography

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Proceedings Article | 2 September 2004 Paper

Comparison of algorithms for use in real-time spotlight-mode SAR image formation

Charles Jakowatz, Daniel Wahl, David Yocky, Brian Bray, Wallace Bow, John Richards

Proceedings Volume 5427, (2004) https://doi.org/10.1117/12.548203

KEYWORDS: Wavefronts, Image acquisition, Synthetic aperture radar, Image processing, Raster graphics, Image resolution, Image quality, Radar, Distortion, Image compression

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Proceedings Article | 19 November 2003 Paper

Automated wide-angle SAR stereo height extraction in rugged terrain using shift-scaling correlation

David Yocky, Charles Jakowatz

Proceedings Volume 5203, (2003) https://doi.org/10.1117/12.502706

KEYWORDS: Synthetic aperture radar, Error analysis, Image processing, Image resolution, Image acquisition, Image registration, Fourier transforms, Reflectivity, Sun, Global Positioning System

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Proceedings Article | 8 November 2002 Paper

Novel automatic target recognition approach for multispectral data

Jose Salazar, Mark Koch, David Yocky

Proceedings Volume 4816, (2002) https://doi.org/10.1117/12.453772

KEYWORDS: Sensors, Detection and tracking algorithms, Target recognition, Automatic target recognition, Target detection, Optical filters, Image processing, Contamination, Calibration, Quantization

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Proceedings Article | 24 August 2000 Paper

Two-target height effects on interferometric synthetic aperture radar coherence

David Yocky, Charles Jakowatz

Proceedings Volume 4053, (2000) https://doi.org/10.1117/12.396320

KEYWORDS: Interferometric synthetic aperture radar, Synthetic aperture radar, Coherence (optics), Antennas, Signal processing, Device simulation, Radar, Reflectivity, Signal to noise ratio, Image resolution

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SPIE Journal Paper | 1 July 1996

Artifacts in wavelet image merging

David Yocky

OE, Vol. 35, Issue 07, (July 1996) https://doi.org/10.1117/12.10.1117/1.600765

KEYWORDS: Wavelets, Image sensors, Multispectral imaging, Sensors, Image resolution, Image fusion, Wavelet transforms, Image enhancement, Modulation, RGB color model

Proceedings Article | 1 July 1990 Paper

New method to determine the lower limits in patient exposure: stacked computed radiography image detectors

Hans Roehrig, Theron Ovitt, George Seeley, David Yocky, William Dallas

Proceedings Volume 1231, (1990) https://doi.org/10.1117/12.18829

KEYWORDS: Chromium, Sensors, X-rays, Signal to noise ratio, X-ray imaging, Medical imaging, Imaging systems, Image quality, Chest, Radiography

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Proceedings Article | 1 July 1990 Paper

Physical and psychophysical analysis of laser readout conditions for imaging plates in computed radiography

Brigid Gerety, Hans Roehrig, George Seeley, Tinglan Ji, David Yocky, Bryan Westerman, Theron Ovitt

Proceedings Volume 1232, (1990) https://doi.org/10.1117/12.18839

KEYWORDS: Signal to noise ratio, Image processing, Image quality, Medical imaging, Spatial resolution, X-rays, Radiography, X-ray imaging, Imaging systems, Interference (communication)

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Showing 5 of 14 publications

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