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Proceedings Paper

Application Of Data Compression Techniques To Spacecraft Imaging Systems
Author(s): Christopher Allen
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Paper Abstract

Spacecraft imaging systems produce amounts of data which can easily exceed the down-link channel capacity. This paper demonstrates data compression methods which reduce significantly the communication requirements with minimum loss of information in the received imagery. Differential PCM data compression takes advantage of the lower entropy of the scene-invariant brightness difference signal. Entropy coding of the compressor output provides maximum signal-to-noise ratio per channel bit. Two-bit-per-sample imagery is shown to be equivalent to 6-bit PCM. Reconstruction error and subjective evaluation of actual images are used to measure compression performance.

Paper Details

Date Published: 16 April 1973
PDF: 8 pages
Proc. SPIE 0032, Developments in Electronic Imaging Techniques II, (16 April 1973); doi: 10.1117/12.953609
Show Author Affiliations
Christopher Allen, The Boeing Company (United States)

Published in SPIE Proceedings Vol. 0032:
Developments in Electronic Imaging Techniques II
Ralph Zirkind; Sol Nudelman; Alvin Schnitzler, Editor(s)

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