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Author Abousleman, G.P.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1995
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Image coding ♦ Hyperspectral imaging ♦ Discrete cosine transforms ♦ Hyperspectral sensors ♦ Quantization ♦ Encoding ♦ Algorithm design and analysis ♦ Radiometry ♦ High-resolution imaging ♦ Spectroscopy
Abstract A system is presented for compression of hyperspectral imagery which utilizes trellis coded quantization (TCQ). Specifically, DPCM is used to spectrally decorrelate the hyperspectral data, while a 2-D discrete cosine transform (DCT) coding scheme is used for spatial decorrelation. Entropy-constrained codebooks are designed using a modified version of the generalized Lloyd algorithm. This coder achieves compression ratios of greater than 70:1 with average PSNR of the coded hyperspectral sequence exceeding 40.0 dB.
Description Author affiliation: Hughes Space & Communo., Los Angeles, CA, USA (Abousleman, G.P.)
ISBN 0818670126
ISSN 10680314
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1995-03-28
Publisher Place USA
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 482.48 kB
Page Count 10
Starting Page 322
Ending Page 331


Source: IEEE Xplore Digital Library