A new image fusion algorithm based on the In this work, multispectral SPOT-XS and ERS data are fused subband decomposition of the source images using 2-D using 1-D lattice filters based subband decomposition [6][7]. separable lattice filters is presented. The method is used for Lattice filters are used in digital filter implementations because the fusion of multispectral and SAR data. The source they have a number of interesting and important properties images are decomposed into subband images using including modularity, low sensitivity to parameter quantization separable lattice filters, these images are combined in the effects and a simple stability test. Two channel QMF subband domain using a predefined rule, then the fused (quadrature mirror filter) bank with lattice structure has perfect image is obtained by the inverse lattice filter. reconstruction property, while it guarantees good stop band attenuation for each of the analysis filters. Due to the use of
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