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Radiometric characterization of ikonos multispectral imagery
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Holekamp, Kara Pagnutti, Mary Schiller, Stephen Ryan, Robert E. Thome Sr., Kurtis Kelly, Michelle Zanoni, Vicki |
| Copyright Year | 2002 |
| Description | A radiometric characterization of Space Imaging's IKONOS 4-m multispectral imagery has been performed by a NASA funded team from the John C. Stennis Space Center (SSC), the University of Arizona Remote Sensing Group (UARSG), and South Dakota State University (SDSU). Both intrinsic radiometry and the effects of Space Imaging processing on radiometry were investigated. Relative radiometry was examined with uniform Antarctic and Saharan sites. Absolute radiometric calibration was performed using reflectance-based vicarious calibration methods on several uniform sites imaged by IKONOS, coincident with ground-based surface and atmospheric measurements. Ground-based data and the IKONOS spectral response function served as input to radiative transfer codes to generate a Top-of-Atmosphere radiance estimate. Calibration coefficients derived from each vicarious calibration were combined to generate an IKONOS radiometric gain coefficient for each multispectral band assuming a linear response over the full dynamic range of the instrument. These calibration coefficients were made available to Space Imaging, which subsequently adopted them by updating its initial set of calibration coefficients. IKONOS imagery procured through the NASA Scientific Data Purchase program is processed with or without a Modulation Transfer Function Compensation kernel. The radiometric effects of this kernel on various scene types was also investigated. All imagery characterized was procured through the NASA Scientific Data Purchase program. |
| File Size | 2990324 |
| Page Count | 49 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20040008894 |
| Archival Resource Key | ark:/13960/t3sv2jb45 |
| Language | English |
| Publisher Date | 2002-08-12 |
| Access Restriction | Open |
| Subject Keyword | Earth Resources And Remote Sensing Satellite Imagery Characterization Radiometers Multispectral Band Scanners Image Processing Modulation Transfer Function Ground Truth Remote Sensing Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
