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Progressive band selection
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Chang, Chein-I Fisher, Kevin |
| Copyright Year | 2009 |
| Description | Progressive band selection (PBS) reduces spectral redundancy without significant loss of information, thereby reducing hyperspectral image data volume and processing time. Used onboard a spacecraft, it can also reduce image downlink time. PBS prioritizes an image's spectral bands according to priority scores that measure their significance to a specific application. Then it uses one of three methods to select an appropriate number of the most useful bands. Key challenges for PBS include selecting an appropriate criterion to generate band priority scores, and determining how many bands should be retained in the reduced image. The image's Virtual Dimensionality (VD), once computed, is a reasonable estimate of the latter. We describe the major design details of PBS and test PBS in a land classification experiment. |
| File Size | 3817611 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20090032049 |
| Archival Resource Key | ark:/13960/t90917x6n |
| Language | English |
| Publisher Date | 2009-08-02 |
| Access Restriction | Open |
| Subject Keyword | Downlinking Priorities Classifications Losses Image Processing Spectral Bands Spectra Criteria Data Reduction Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
