System for interactive visualization and analysis of imaging spectrometry datasets over a wide-area network
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United States of America Patent
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Apr 8, 2003
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N/A
app pub date -
Oct 30, 1998
filing date -
Oct 31, 1997
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Expired
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Abstract
The present invention relates to a method of viewing and processing hyper-spectral image data compressed using a VQ algorithm. According to the invention the data is compressed using a codebook of codevectors including binary spectral vectors, which allows processing of the compressed data and viewing of data within a datacube without expanding the compressed data into the complete datacube. In order to view an image derived from a datacube, for each pixel within the image a location within the datacube is selected, an index value from the index map at that location is retrieved, and a spectral value from a spectral vector within the codebook is retrieved for said pixel, the spectral vector identified by the retrieved index. A single spectral vector is easily viewed by displaying a spectral vector from the codebook.
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