Final report study of synthetic aperture radar data compression and encoding: part II: SAR image speckle suppression and data compression algorithms
M. Langemann, W. Huisman · 1985
This Part II of the Final Report discusses algorithms for reducing the typical SAR noise (speckle) in SAR-images and the ensuing compression of these images. The speckle suppression is achieved by means of an adaptive local-variant two-dimensional filter in the time-domain, operating on blocks of 5 x 5 pixels; the compression is achieved by means of a transform coding algorithm. Attention focusses on the monospectral treatment of SAR-imagery; some attention is given to the multi-spectral case.