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The Orthogonal Subspace Projection (OSP) algorithm is substantially a kind of matched filter that requires the evaluation of a prototype for each class to be detected. The kernel OSP (KOSP) has recently demonstrated improved results for target detection in hyperspectral images. The use of the kernel method makes the method non-linear, helps to combat the(More)
Multitemporal analysis of very high resolution images has gained an ever increasing attention due to the availability of several satellite platforms with different spectral and geometrical resolutions and revisit times. The last generation of multispectral sensors (e.g., Quickbird, Ikonos, SPOT-5) can acquire a panchromatic (Pan) image characterized by a(More)
In this chapter, different approaches to image fusion for pan-sharpening of multispec-tral images are presented and critically compared. Particular emphasis is devoted to the advantages resulting from defining pan-sharpening as an optimisation problem. Implementation issues are also considered and extensive results in terms of quality of the fused products,(More)
Distributed source coding makes it possible to develop compression algorithms with a low−complexity encoder, while most of the signal modeling is moved to the decoder. This structure is an excellent match to the remote sensing scenario, in which the on−board processing units have limited computational capabilities. Moreover, remote sensing images do not(More)
1. ABSTRACT The last generation of multispectral sensors (e.g., Quickbird, Ikonos, SPOT-5) can acquire a panchromatic image characterized by a very high geometrical resolution and a set of multispectral images that have lower spatial resolution. In order to merge the properties of these two kinds of data, i.e. to achieve a set of MS images with an enhanced(More)
Technological advances in imaging spectrometry have recently motivated the developments of remote sensing instruments having extremely high spectral resolution. The increment in spectral resolution, however, must be accompanied by an equivalent increment in radiometric resolution (i.e., number of radiance levels that can be discriminated in the presence of(More)