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Author: steven brown

Displaying records 21 to 30 of 155 records.
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21. A Hyperspectral Image Projector for Hyperspectral Imagers
Published: 9/3/2007
Authors: Joseph Paul Rice, Steven W Brown, Jorge Enrique Neira, Robert R. Bousquet
Abstract: We have developed and demonstrated a Hyperspectral Image Projector (HIP) intended for system-level validation testing of hyperspectral imagers, including the instrument and any associated spectral unmixing algorithms. HIP, based on the same digital ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841091

22. Correction of Stray Light In Spectroradiometers and Imaging Instruments
Published: 7/4/2007
Authors: Yuqin Zong, Steven W Brown, Keith R Lykke, Yoshihiro Ohno
Abstract: Measurement errors from stray light, spectral or spatial, are inevitable and are often the dominant source of error in spectroradiometers and imaging radiometers/photometers. We have developed a simple matrix method for correcting spatial stray light ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841072

23. Comparison of absolute spectral irradiance responsivity measurement techniques using wavelength-tunable lasers
Published: 6/20/2007
Authors: V Ahtee, Steven W Brown, Thomas C Larason, Keith R Lykke, E and Noorma Ikonen
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=101543

24. Development of Surgical Lighting for Enhanced Color Contrast
Published: 5/14/2007
Authors: Maritoni Abatayo Litorja, Steven W Brown, Maria E Nadal, David W Allen, Alexander Gorbach
Abstract: The National Institute of Standards and Technology and the National Institutes of Health have started a collaborative study on the development of lighting that will provide enhanced, specific to various tissues, contrast with respect to its surroundi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841075

25. Hyperspectral Image Projector for Advanced Sensor Characterization
Published: 12/4/2006
Authors: Steven W Brown, Joseph Paul Rice, Jorge Enrique Neira, Bettye C Johnson
Abstract: In this work, we describe radiometric platforms able to produce realistic spectral distributions and spatial scenes for the development of application-specific metrics to quantify the performance of sensors and systems. Using these platforms, sensor ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841043

26. Development of Hyperspectral Image Projectors
Published: 11/1/2006
Authors: Joseph Paul Rice, Steven W Brown, Jorge Enrique Neira
Abstract: We present design concepts for calibrated hyperspectral image projectors (HIP) and related sources intended for system-level testing of instruments ranging from complex hyperspectral or multispectral imagers to simple filter radiometers. HIP, based o ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841162

27. Spectrally Tunable Sources for Advanced Radiometric Applications
Series: Journal of Research (NIST JRES)
Published: 10/1/2006
Authors: Steven W Brown, Joseph Paul Rice, J D Jackson, Jorge Enrique Neira, Bettye C Johnson
Abstract: A common radiometric platform for the development of application-specific metrics to quantify the performance of sensors and systems is described. Using this platform, systems may be quantified in terms of the accuracy of measurements of standardize ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841002

28. Facility for Spectral Irradiance and Radiance Responsivity Calibrations Using Uniform Sources (SIRCUS)
Published: 7/7/2006
Authors: Steven W Brown, George P Eppeldauer, Keith R Lykke
Abstract: Detectors have historically been calibrated for spectral power responsivity at the National Institute of Standards and Technology (NIST) using a lamp-monochromator system to tune the wavelength of the excitation source. Silicon detectors can be cali ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841000

29. Hyperspectral Image Projectors for Radiometric Applications
Published: 3/23/2006
Authors: Joseph Paul Rice, Steven W Brown, Bettye C Johnson, Jorge Enrique Neira
Abstract: We describe a new type of Calibrated Hyperspectral Image Projector (CHIP) intended for radiometric testing of instruments ranging from complex hyperspectral or multispectral imagers to simple filter radiometers. The CHIP, based on the same digital mi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840986

30. Simple Spectral Stray Light Correction Method for Array Spectroradiometers
Published: 2/20/2006
Authors: Yuqin Zong, Steven W Brown, Bettye C Johnson, Keith R Lykke, Yoshihiro Ohno
Abstract: In many applications, the measurement accuracy of spectroradiometers, particularly instruments with a single dispersive element, is limited by the presence of stray radiation within the instrument. A simple, practical method has been developed to co ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840968



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