| Issue |
A&A
Volume 386, Number 3, May II 2002
|
|
|---|---|---|
| Page(s) | 1143 - 1152 | |
| Section | Numerical methods and codes | |
| DOI | https://doi.org/10.1051/0004-6361:20020225 | |
| Published online | 15 May 2002 | |
Lossy compression of scientific spacecraft data using wavelets. Application to the CASSINI spacecraft data compression
1
Space Research Department of Paris Observatory (DESPA), Meudon, France
2
CREATIS, Research Unit associated to CNRS (# 5515) and affiliated to INSERM, Lyon, France
3
LIGIM, Computer Graphics, Image and Modelling Laboratory, Université Claude Bernard, Lyon, France
Corresponding author: H. Benoit-Cattin, hugues@creatis.insa-lyon.fr
Received:
28
July
2000
Accepted:
20
December
2001
This paper presents a lossy coding scheme designed to be board on the Cassini spacecraft which has been launched in 1997 to study Saturn planet. To deal with specific time-frequency data and numerous constraints, our coding algorithm is based on wavelet decomposition associated to an adaptive bit allocation procedure. The performances of our approach are validated by an adapted scientific evaluation.
Key words: techniques: image processing
© ESO, 2002
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