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Synthesis of Multispectral Bands from Hyperspectral Data: Validation Based on Images Acquired by AVIRIS, Hyperion, ALI, and ETM+Multispectral data requirements for Earth science applications are not always studied rigorously studied before a new remote sensing system is designed. A study of the spatial resolution, spectral bandpasses, and radiometric sensitivity requirements of real-world applications would focus the design onto providing maximum benefits to the end-user community. To support systematic studies of multispectral data requirements, the Applications Research Toolbox (ART) has been developed at NASA's Stennis Space Center. The ART software allows users to create and assess simulated datasets while varying a wide range of system parameters. The simulations are based on data acquired by existing multispectral and hyperspectral instruments. The produced datasets can be further evaluated for specific end-user applications. Spectral synthesis of multispectral images from hyperspectral data is a key part of the ART software. In this process, hyperspectral image cubes are transformed into multispectral imagery without changes in spatial sampling and resolution. The transformation algorithm takes into account spectral responses of both the synthesized, broad, multispectral bands and the utilized, narrow, hyperspectral bands. To validate the spectral synthesis algorithm, simulated multispectral images are compared with images collected near-coincidentally by the Landsat 7 ETM+ and the EO-1 ALI instruments. Hyperspectral images acquired with the airborne AVIRIS instrument and with the Hyperion instrument onboard the EO-1 satellite were used as input data to the presented simulations.
Document ID
20040013504
Acquisition Source
Stennis Space Center
Document Type
Conference Paper
Authors
Blonksi, Slawomir
(Lockheed Martin Space Operations Bay Saint Louis, MS, United States)
Gasser, Gerald
(Lockheed Martin Space Operations Bay Saint Louis, MS, United States)
Russell, Jeffrey
(Lockheed Martin Space Operations Bay Saint Louis, MS, United States)
Ryan, Robert
(Lockheed Martin Space Operations Bay Saint Louis, MS, United States)
Terrie, Greg
(Lockheed Martin Space Operations Bay Saint Louis, MS, United States)
Zanoni, Vicki
(NASA Stennis Space Center Stennis Space Center, MS, United States)
Date Acquired
August 21, 2013
Publication Date
November 20, 2001
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
SE-2001-11-00065-SSC
Meeting Information
Meeting: 2002 AVIRIS Earth Science and Applications Workshop
Location: Pasadena, CA
Country: United States
Start Date: March 5, 2002
End Date: March 8, 2002
Funding Number(s)
CONTRACT_GRANT: NAS13-650
Distribution Limits
Public
Copyright
Other

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