Mr. Glenn Woodell Profile

Glenn Woodell

Engineering Technician at NASA Langley Research Ctr

SPIE Involvement:

Author

Publications (26)

Proceedings Article | 22 May 2015 Paper

Anomalous cases of astronaut helmet detection

Chester Dolph, Andrew Moore, Matthew Schubert, Glenn Woodell

Proceedings Volume 9469, 946906 (2015) https://doi.org/10.1117/12.2176743

KEYWORDS: Fiber reinforced polymers, Cameras, Machine vision, Comets, Video, Solids, Aerospace engineering, Space operations, Distortion, Sensors

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An astronaut’s helmet is an invariant, rigid image element that is well suited for identification and tracking using current machine vision technology. Future space exploration will benefit from the development of astronaut detection software for search and rescue missions based on EVA helmet identification. However, helmets are solid white, except for metal brackets to attach accessories such as supplementary lights. We compared the performance of a widely used machine vision pipeline on a standard-issue NASA helmet with and without affixed experimental feature-rich patterns. Performance on the patterned helmet was far more robust. We found that four different feature-rich patterns are sufficient to identify a helmet and determine orientation as it is rotated about the yaw, pitch, and roll axes. During helmet rotation the field of view changes to frames containing parts of two or more feature-rich patterns. We took reference images in these locations to fill in detection gaps. These multiple feature-rich patterns references added substantial benefit to detection, however, they generated the majority of the anomalous cases. In these few instances, our algorithm keys in on one feature-rich pattern of the multiple feature-rich pattern reference and makes an incorrect prediction of the location of the other feature-rich patterns. We describe and make recommendations on ways to mitigate anomalous cases in which detection of one or more feature-rich patterns fails. While the number of cases is only a small percentage of the tested helmet orientations, they illustrate important design considerations for future spacesuits. In addition to our four successful feature-rich patterns, we present unsuccessful patterns and discuss the cause of their poor performance from a machine vision perspective. Future helmets designed with these considerations will enable automated astronaut detection and thereby enhance mission operations and extraterrestrial search and rescue.

Proceedings Article | 20 April 2015 Paper

Machine vision for airport runway identification

Matthew Schubert, Andrew Moore, Chester Dolph, Glenn Woodell

Proceedings Volume 9477, 94770G (2015) https://doi.org/10.1117/12.2177320

KEYWORDS: Video, Machine vision, Sensors, Databases, Image sensors, Cameras, Short wave infrared radiation, Visibility, Infrared radiation, Snow cover

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Proceedings Article | 15 April 2010 Paper

The spatial vision tree: a generic pattern recognition engine: scientific foundations, design principles, and preliminary tree design

Zia-ur Rahman, Daniel Jobson, Glenn Woodell

Proceedings Volume 7701, 77010K (2010) https://doi.org/10.1117/12.851869

KEYWORDS: Pattern recognition, Visualization, Denoising, Image enhancement, Information theory, Visibility, Image processing, Sensors, Information visualization, Convolution

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SPIE Journal Paper | 1 September 2009

Adaptive two-scale edge detection for visual pattern processing

Zia-Ur Rahman, Daniel Jobson, Glenn Woodell

OE, Vol. 48, Issue 09, 097006, (September 2009) https://doi.org/10.1117/12.10.1117/1.3231534

KEYWORDS: Visualization, Image enhancement, Edge detection, Image processing, Signal to noise ratio, Information visualization, Image fusion, Optical engineering, Spatial resolution, Pattern recognition

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Proceedings Article | 2 April 2008 Paper

Adaptive methods of two-scale edge detection in post-enhancement visual pattern processing

Zia-ur Rahman, Daniel Jobson, Glenn Woodell

Proceedings Volume 6978, 69780N (2008) https://doi.org/10.1117/12.778053

KEYWORDS: Visualization, Image enhancement, Current controlled current source, Edge detection, Image processing, Information visualization, Signal to noise ratio, Image fusion, Spatial resolution, Pattern recognition

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Proceedings Article | 25 March 2008 Paper

Scene context dependency of pattern constancy of time series imagery

Glenn Woodell, Daniel Jobson, Zia-ur Rahman

Proceedings Volume 6978, 69780L (2008) https://doi.org/10.1117/12.778676

KEYWORDS: Image processing, Sun, Light sources and illumination, Pattern recognition, Sensors, Edge detection, Image enhancement, Visualization, Safety, Nitrogen

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Proceedings Article | 19 May 2006 Paper

Realtime enhancement, registration, and fusion for a multisensor enhanced vision system

Glenn Hines, Zia-ur Rahman, Daniel Jobson, Glenn Woodell

Proceedings Volume 6226, 622609 (2006) https://doi.org/10.1117/12.665853

KEYWORDS: Cameras, Image enhancement, Long wavelength infrared, Image processing, Digital signal processing, Short wave infrared radiation, Image fusion, Video, Image registration, Enhanced vision

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Proceedings Article | 12 May 2006 Paper

Automated, on-board terrain analysis for precision landings

Zia-ur Rahman, Daniel Jobson, Glenn Woodell, Glenn Hines

Proceedings Volume 6246, 62460J (2006) https://doi.org/10.1117/12.664605

KEYWORDS: Image segmentation, Image processing, Image enhancement, Signal to noise ratio, Edge detection, Mars, Visualization, Imaging systems, Light sources and illumination, Space operations

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Proceedings Article | 12 May 2006 Paper

A comparison of visual statistics for the image enhancement of FORESITE aerial images with those of major image classes

Daniel Jobson, Zia-ur Rahman, Glenn Woodell, Glenn Hines

Proceedings Volume 6246, 624601 (2006) https://doi.org/10.1117/12.664591

KEYWORDS: Visualization, Visibility, Image enhancement, Mars, Image processing, Visibility through fog, Servomechanisms, Optical tracking, Air contamination, Image quality

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Proceedings Article | 12 May 2006 Paper

Advanced image processing of aerial imagery

Glenn Woodell, Daniel Jobson, Zia-ur Rahman, Glenn Hines

Proceedings Volume 6246, 62460E (2006) https://doi.org/10.1117/12.666767

KEYWORDS: Image enhancement, Visibility, Airborne remote sensing, Air contamination, Image processing, Visibility through fog, Visualization, Cameras, Clouds, Enhanced vision

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Proceedings Article | 15 September 2005 Paper

Image enhancement, image quality, and noise

Zia-ur Rahman, Daniel Jobson, Glenn Woodell, Glenn Hines

Proceedings Volume 5907, 59070N (2005) https://doi.org/10.1117/12.619460

KEYWORDS: Signal to noise ratio, Image enhancement, Image processing, Image quality, Visualization, Denoising, Interference (communication), Digital image processing, Digital imaging, Solids

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Proceedings Article | 25 May 2005 Paper

Real-time enhanced vision system

Glenn Hines, Zia-ur Rahman, Daniel Jobson, Glenn Woodell, Steven Harrah

Proceedings Volume 5802, (2005) https://doi.org/10.1117/12.603656

KEYWORDS: Digital signal processing, Cameras, Image processing, Signal processing, Short wave infrared radiation, Visibility, Image enhancement, Sensors, Long wavelength infrared, Video

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Proceedings Article | 20 May 2005 Paper

Enhancement of imagery in poor visibility conditions

Glenn Woodell, Daniel Jobson, Zia-ur Rahman, Glenn Hines

Proceedings Volume 5778, (2005) https://doi.org/10.1117/12.601965

KEYWORDS: Image processing, Image enhancement, Visibility, Visibility through fog, Video, Fiber optic gyroscopes, Air contamination, Safety, Homeland security, Light sources and illumination

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Proceedings Article | 15 September 2004 Paper

Enhanced images for checked and carry-on baggage and cargo screening

Glenn Woodell, Zia-ur Rahman, Daniel Jobson, Glenn Hines

Proceedings Volume 5403, (2004) https://doi.org/10.1117/12.530669

KEYWORDS: X-ray imaging, X-rays, Image processing, Image enhancement, Information security, Safety, Imaging systems, X-ray technology, Radiography, Homeland security

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Proceedings Article | 15 July 2004 Paper

Impact of multi-scale retinex computation on performance of segmentation algorithms

Zia-ur Rahman, Daniel Jobson, Glenn Woodell, Glenn Hines

Proceedings Volume 5438, (2004) https://doi.org/10.1117/12.543094

KEYWORDS: Image segmentation, Image processing, Signal to noise ratio, Image processing algorithms and systems, Image enhancement, Image classification, Visualization, Imaging systems, Chromium, Image compression

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Proceedings Article | 15 July 2004 Paper

Automatic assessment and reduction of noise using edge pattern analysis in non-linear image enhancement

Daniel Jobson, Zia-ur Rahman, Glenn Woodell, Glenn Hines

Proceedings Volume 5438, (2004) https://doi.org/10.1117/12.539786

KEYWORDS: Image enhancement, Visualization, Edge detection, Signal to noise ratio, Image processing, Convolution, Spatial resolution, Interference (communication), Information visualization, Contrast sensitivity

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Proceedings Article | 15 July 2004 Paper

DSP implementation of the retinex image enhancement algorithm

Glenn Hines, Zia-ur Rahman, Daniel Jobson, Glenn Woodell

Proceedings Volume 5438, (2004) https://doi.org/10.1117/12.544500

KEYWORDS: Digital signal processing, Image processing, Video, Image enhancement, Field programmable gate arrays, Signal processing, Cameras, Video processing, Detection and tracking algorithms, Data processing

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SPIE Journal Paper | 1 January 2004

Retinex processing for automatic image enhancement

Zia-ur Rahman, Daniel Jobson, Glenn Woodell

JEI, Vol. 13, Issue 01, (January 2004) https://doi.org/10.1117/12.10.1117/1.1636183

KEYWORDS: Image processing, Visualization, Image enhancement, Information visualization, Image compression, Image visualization, Light sources and illumination, Digital imaging, Distortion, Reflectivity

Proceedings Article | 8 August 2003 Paper

Multi-image registration for an enhanced vision system

Glenn Hines, Zia-ur Rahman, Daniel Jobson, Glenn Woodell

Proceedings Volume 5108, (2003) https://doi.org/10.1117/12.496917

KEYWORDS: Long wavelength infrared, Image sensors, Image registration, Short wave infrared radiation, Sensors, Cameras, Image fusion, Image processing, Image enhancement, Video

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Proceedings Article | 8 August 2003 Paper

Feature visibility limits in the nonlinear enhancement of turbid images

Daniel Jobson, Zia-ur Rahman, Glenn Woodell

Proceedings Volume 5108, (2003) https://doi.org/10.1117/12.488842

KEYWORDS: Visualization, Visibility, Visibility through fog, Image processing, Servomechanisms, Image enhancement, Fiber optic gyroscopes, Signal to noise ratio, Interference (communication), Control systems

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Proceedings Article | 30 July 2002 Paper

Multisensor fusion and enhancement using the Retinex image enhancement algorithm

Zia-ur Rahman, Daniel Jobson, Glenn Woodell, Glenn Hines

Proceedings Volume 4736, (2002) https://doi.org/10.1117/12.477590

KEYWORDS: Image enhancement, Short wave infrared radiation, Long wavelength infrared, Infrared imaging, Infrared radiation, Sensors, Visibility, Image processing, Image fusion, RGB color model

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Proceedings Article | 30 July 2002 Paper

Statistics of visual representation

Daniel Jobson, Zia-ur Rahman, Glenn Woodell

Proceedings Volume 4736, (2002) https://doi.org/10.1117/12.477589

KEYWORDS: Visualization, Image processing, Image visualization, Digital imaging, Image enhancement, Optimization (mathematics), Image compression, Algorithm development, Image quality, Quality measurement

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Proceedings Article | 30 May 2002 Paper

Retinex processing for automatic image enhancement

Zia-ur Rahman, Daniel Jobson, Glenn Woodell

Proceedings Volume 4662, (2002) https://doi.org/10.1117/12.469537

KEYWORDS: Visualization, Image enhancement, Image processing, Information visualization, Image quality, Image visualization, Digital image processing, Human vision and color perception, Light sources and illumination, Algorithm development

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Proceedings Article | 28 August 2001 Paper

Spatial aspect of color and scientific implications of Retinex image processing

Daniel Jobson, Zia-ur Rahman, Glenn Woodell

Proceedings Volume 4388, (2001) https://doi.org/10.1117/12.438249

KEYWORDS: Visualization, Image processing, Image enhancement, Information visualization, Image visualization, Sensors, Signal to noise ratio, Color vision, Signal processing, Distortion

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Proceedings Article | 14 November 1996 Paper

Multiscale retinex for color rendition and dynamic range compression

Zia-ur Rahman, Daniel Jobson, Glenn Woodell

Proceedings Volume 2847, (1996) https://doi.org/10.1117/12.258224

KEYWORDS: Image compression, Human vision and color perception, Visualization, Image processing, Cameras, Light sources and illumination, Analog electronics, Image enhancement, Digital cameras, Photography

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Proceedings Article | 1 December 1991 Paper

Characterization of the Bridgman crystal growth process by radiographic imaging

Archibald Fripp, W. Debnam, Glenn Woodell, Robert Berry, Richard Simchick, S. Sorokach, Patrick Barber

Proceedings Volume 1557, (1991) https://doi.org/10.1117/12.49602

KEYWORDS: Interfaces, Crystals, Germanium, Supercooling, Astronomical imaging, Image processing, Radiography, Solids, Lithium, Stochastic processes

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Showing 5 of 26 publications

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