Experiments with wavelets for compression of SAR data
- Environmental Research Inst. of Michigan, Ann Arbor, MI (United States)
Synthetic aperture radar (SAR) is an active coherent all-weather imaging system that operates in the microwave region of the spectrum. This imagery has many possible uses, such as in surveillance, oceanography, glaciology, and agriculture. Wavelet transform coding is shown to be an effective method for compression of both detected and complex synthetic aperture radar (SAR) imagery. Three different orthogonal wavelet transform filters are examined for use in SAR data compression; the performances of the filters are correlated with mathematical properties such as regularity and number of vanishing moments. Excellent quality reconstructions are obtained at data rates as low as 0.25 bpp for detected data and as low as 0.5 bits per element (or 2 bpp) for complex data.
- OSTI ID:
- 7226447
- Journal Information:
- IEEE Transactions on Geoscience and Remote Sensing (Institute of Electrical and Electronics Engineers); (United States), Vol. 32:1; ISSN 0196-2892
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
58 GEOSCIENCES
SYNTHETIC-APERTURE RADAR
DATA PROCESSING
ALGORITHMS
DIGITAL FILTERS
IMAGE PROCESSING
PERFORMANCE
SIMULATION
USES
MATHEMATICAL LOGIC
MEASURING INSTRUMENTS
PROCESSING
RADAR
RANGE FINDERS
540210* - Environment
Terrestrial- Basic Studies- (1990-)
540310 - Environment
Aquatic- Basic Studies- (1990-)
580000 - Geosciences