Some practical aspects of lossless and nearly-lossless compression of AVHRR imagery
- Author
- Miller, Chris X.
- Published
- Apr 1, 1994.
- Physical Description
- 1 electronic document
- Additional Creators
- Christensen, Than Lee, Moorti, Raj, and Hogan, David B.
Online Version
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- Restrictions on Access
- Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access - Summary
- Compression of Advanced Very high Resolution Radiometers (AVHRR) imagery operating in a lossless or nearly-lossless mode is evaluated. Several practical issues are analyzed including: variability of compression over time and among channels, rate-smoothing buffer size, multi-spectral preprocessing of data, day/night handling, and impact on key operational data applications. This analysis is based on a DPCM algorithm employing the Universal Noiseless Coder, which is a candidate for inclusion in many future remote sensing systems. It is shown that compression rates of about 2:1 (daytime) can be achieved with modest buffer sizes (less than or equal to 2.5 Mbytes) and a relatively simple multi-spectral preprocessing step.
- Other Subject(s)
- Collection
- NASA Technical Reports Server (NTRS) Collection.
- Note
- Document ID: 19940023761.
Accession ID: 94N28264.
NASA. Goddard Space Flight Center, The 1994 Space and Earth Science Data Compression Workshop; p 135-142. - Terms of Use and Reproduction
- No Copyright.
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