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Abstract:
With the wide application of hyperspectral images in various fields, the theory of sparse representation of signals has been getting more attention from researchers. This paper presents a classified redundant dictionary-learning algorithm of hyperspectral image based on geologic feature. Experimental results showed that hyperspectral image signals could be expressed with the greatest fidelity. The algorithm constructs redundant dictionary library through a sparse decomposed image according to the geologic feature based on clustering, which more accurately represents the spectral signal in sparse reconstruction. To apply the classification dictionary library to super-resolution restoration of hyperspectral image, sparse decomposed hyperspectral image is needed to obtain high and low resolutions of a redundant dictionary. Then, low resolution and dictionary of hyperspectral image restoration could be obtained. The algorithm could effectively improve image resolution to ensure the quality of image restoration. © 2017 IEEE.
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Year: 2017
Page: 435-440
Language: English
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WoS CC Cited Count: 0
SCOPUS Cited Count: 1
ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 5
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