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Article: Global Spatial and Local Spectral Similarity-Based Manifold Learning Group Sparse Representation for Hyperspectral Imagery Classification

TitleGlobal Spatial and Local Spectral Similarity-Based Manifold Learning Group Sparse Representation for Hyperspectral Imagery Classification
Authors
Keywordsgroup sparse representation (GSR)
nonlocal self-similarity (NLSS)
hyperspectral image
Classification
Issue Date2020
Citation
IEEE Transactions on Geoscience and Remote Sensing, 2020, v. 58, n. 5, p. 3043-3056 How to Cite?
AbstractSpectral-spatial framework has been widely applied for hyperspectral image classification task. Some well-established models, such as group sparse representation (GSR), have gained a certain advance but still mainly focus on the usage of local spatial similarity and neglect the nonlocal spatial information. Recently, nonlocal self-similarity (NLSS) has been exploited to support the spatial coherence tasks. However, current NLSS-based methods are biased toward the direct use of nonlocal spatial information as a whole, while the underlying spectral information is not well exploited. In this article, we proposed a novel method to exploit local spectral similarity through nonlocal spatial similarity, with the integration of local spatial consistency in a single framework. Specifically, the proposed approach first exploits the NLSS by searching the nonoverlapped similar patches in defined scopes. Then, spectral similarity is determined locally within the found patches. After that, the found similar data and the original data are fused in a designed pattern. Finally, the GSR-based classifier (GSRC) is applied to process the fused data characterized by the manifold learning algorithm. The experimental results based on three real hyperspectral data sets demonstrate the efficiency of the proposed method, with improvements over the other related nonlocal or local similarity-based methods.
Persistent Identifierhttp://hdl.handle.net/10722/298351
ISSN
2020 Impact Factor: 5.6
2020 SCImago Journal Rankings: 2.141
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorYu, Haoyang-
dc.contributor.authorGao, Lianru-
dc.contributor.authorLiao, Wenzhi-
dc.contributor.authorZhang, Bing-
dc.contributor.authorZhuang, Lina-
dc.contributor.authorSong, Meiping-
dc.contributor.authorChanussot, Jocelyn-
dc.date.accessioned2021-04-08T03:08:13Z-
dc.date.available2021-04-08T03:08:13Z-
dc.date.issued2020-
dc.identifier.citationIEEE Transactions on Geoscience and Remote Sensing, 2020, v. 58, n. 5, p. 3043-3056-
dc.identifier.issn0196-2892-
dc.identifier.urihttp://hdl.handle.net/10722/298351-
dc.description.abstractSpectral-spatial framework has been widely applied for hyperspectral image classification task. Some well-established models, such as group sparse representation (GSR), have gained a certain advance but still mainly focus on the usage of local spatial similarity and neglect the nonlocal spatial information. Recently, nonlocal self-similarity (NLSS) has been exploited to support the spatial coherence tasks. However, current NLSS-based methods are biased toward the direct use of nonlocal spatial information as a whole, while the underlying spectral information is not well exploited. In this article, we proposed a novel method to exploit local spectral similarity through nonlocal spatial similarity, with the integration of local spatial consistency in a single framework. Specifically, the proposed approach first exploits the NLSS by searching the nonoverlapped similar patches in defined scopes. Then, spectral similarity is determined locally within the found patches. After that, the found similar data and the original data are fused in a designed pattern. Finally, the GSR-based classifier (GSRC) is applied to process the fused data characterized by the manifold learning algorithm. The experimental results based on three real hyperspectral data sets demonstrate the efficiency of the proposed method, with improvements over the other related nonlocal or local similarity-based methods.-
dc.languageeng-
dc.relation.ispartofIEEE Transactions on Geoscience and Remote Sensing-
dc.subjectgroup sparse representation (GSR)-
dc.subjectnonlocal self-similarity (NLSS)-
dc.subjecthyperspectral image-
dc.subjectClassification-
dc.titleGlobal Spatial and Local Spectral Similarity-Based Manifold Learning Group Sparse Representation for Hyperspectral Imagery Classification-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1109/TGRS.2019.2947032-
dc.identifier.scopuseid_2-s2.0-85084150052-
dc.identifier.volume58-
dc.identifier.issue5-
dc.identifier.spage3043-
dc.identifier.epage3056-
dc.identifier.eissn1558-0644-
dc.identifier.isiWOS:000529868700005-
dc.identifier.issnl0196-2892-

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