Central Attention Network for Hyperspectral Imagery Classification

Author(s)Liu, Huan
Author(s)Li, Wei
Author(s)Xia, Xiang-Gen
Author(s)Zhang, Mengmeng
Author(s)Gao, Chen-Zhong
Author(s)Tao, Ran
Date Accessioned2022-04-13T13:47:31Z
Date Available2022-04-13T13:47:31Z
Publication Date2022-03-10
DescriptionCopyright 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. This article was originally published in IEEE Transactions on Neural Networks and Learning Systems. The version of record is available at: https://doi.org/10.1109/TNNLS.2022.3155114en_US
AbstractIn this article, the intrinsic properties of hyperspectral imagery (HSI) are analyzed, and two principles for spectral-spatial feature extraction of HSI are built, including the foundation of pixel-level HSI classification and the definition of spatial information. Based on the two principles, scaled dot-product central attention (SDPCA) tailored for HSI is designed to extract spectral-spatial information from a central pixel (i.e., a query pixel to be classified) and pixels that are similar to the central pixel on an HSI patch. Then, employed with the HSI-tailored SDPCA module, a central attention network (CAN) is proposed by combining HSI-tailored dense connections of the features of the hidden layers and the spectral information of the query pixel. MiniCAN as a simplified version of CAN is also investigated. Superior classification performance of CAN and miniCAN on three datasets of different scenarios demonstrates their effectiveness and benefits compared with state-of-the-art methods.en_US
SponsorThis work was supported in part by the Beijing Natural Science Foundation under Grant JQ20021 and in part by the National Natural Science Foundation of China under Grant 61922013 and Grant U1833203.en_US
CitationH. Liu, W. Li, X. -G. Xia, M. Zhang, C. -Z. Gao and R. Tao, "Central Attention Network for Hyperspectral Imagery Classification," in IEEE Transactions on Neural Networks and Learning Systems, doi: 10.1109/TNNLS.2022.3155114.en_US
PublisherIEEE Transactions on Neural Networks and Learning Systemsen_US
KeywordsCentral attentionen_US
Keywordshyperspectral imagery (HSI)en_US
Keywordsspectral-spatial feature extractionen_US
TitleCentral Attention Network for Hyperspectral Imagery Classificationen_US
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