NDLI: Astronomical multiband image fusion and restoration using pyramidal analysis and Markovian segmentation

Content Provider	IEEE Xplore Digital Library
Author	Flitti, F. Collet, C. Slezak, E.
Copyright Year	2005
Description	Author affiliation: LSIIT-UMR CNRS, Univ. Strasbourg I, France (Flitti, F.; Collet, C.)
Abstract	This paper deals with noised astronomical multiband image fusion and restoration. The wavelet domain is well adapted for such tasks. In fact, intensity fluctuations corresponding to the noise are most important at the finest resolution and related details coefficients decrease quickly as the scale increases. Real structures in the image will therefore lead to larger detail coefficients values. This information can be suitably combined to detect and fuse real structures in all bands. In this work, we present a new fusion-restoration scheme for astronomical multispectral data, operating in four steps. At first, a pyramidal algorithm with one wavelet analyzes all spectral bands leading to a pyramid of details coefficients for each one. Secondly, the detail information for all wavelengths are combined in a unique multiband-multiresolution pyramidal to feed a hierarchical Markovian classifier based on a quadtree topology, providing a multiscale two classes segmentation map masking at each scale small enough coefficients. At third, the selected coefficients are merged leading to a unique pyramidal structure of detail coefficients. Finally, this resulting structure is used with an iterative reconstruction procedure to recover the denoised fused image. The Markovian quadtree models spatial, interscale and inter-band correlation together allowing a real whole cube information fusion.
File Size	4085560
File Format	PDF
ISBN	0780392868
DOI	10.1109/ICIF.2005.1592049
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-07-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image fusion Image restoration Image analysis Image segmentation Wavelet domain Fluctuations Fuses Wavelet analysis Spectral analysis Algorithm design and analysis pyramidal algorithm with one wavelet Multispectral image fusion restoration Markov quadtree
Content Type	Text
Resource Type	Article

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