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Hyperspectral Image Classification via Discriminant Gabor Ensemble Filter
Huang, Ke Kun1; Ren, Chuan Xian2,3; Liu, Hui1; Lai, Zhao Rong4; Yu, Yu Feng5; Dai, Dao Qing2
2021-02-05
Source PublicationIEEE Transactions on Cybernetics
ABS Journal Level3
ISSN2168-2267
Volume52Issue:8Pages:8352-8365
Abstract

For a broad range of applications, hyperspectral image (HSI) classification is a hot topic in remote sensing, and convolutional neural network (CNN)-based methods are drawing increasing attention. However, to train millions of parameters in CNN requires a large number of labeled training samples, which are difficult to collect. A conventional Gabor filter can effectively extract spatial information with different scales and orientations without training, but it may be missing some important discriminative information. In this article, we propose the Gabor ensemble filter (GEF), a new convolutional filter to extract deep features for HSI with fewer trainable parameters. GEF filters each input channel by some fixed Gabor filters and learnable filters simultaneously, then reduces the dimensions by some learnable 1x 1 filters to generate the output channels. The fixed Gabor filters can extract common features with different scales and orientations, while the learnable filters can learn some complementary features that Gabor filters cannot extract. Based on GEF, we design a network architecture for HSI classification, which extracts deep features and can learn from limited training samples. In order to simultaneously learn more discriminative features and an end-to-end system, we propose to introduce the local discriminant structure for cross-entropy loss by combining the triplet hard loss. Results of experiments on three HSI datasets show that the proposed method has significantly higher classification accuracy than other state-of-the-art methods. Moreover, the proposed method is speedy for both training and testing.

KeywordConvolutional Neural Network (Cnn) Discriminant Learning Gabor Filter Hyperspectral Image (Hsi) Classification
DOI10.1109/TCYB.2021.3051141
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaAutomation & Control Systems ; Computer Science
WOS SubjectAutomation & Control Systems ; Computer Science, Artificial Intelligence ; Computer Science, Cybernetics
WOS IDWOS:000732311300001
PublisherInstitute of Electrical and Electronics Engineers Inc.
Scopus ID2-s2.0-85100843457
Fulltext Access
Citation statistics
Document TypeJournal article
CollectionDEPARTMENT OF COMPUTER AND INFORMATION SCIENCE
Faculty of Science and Technology
Corresponding AuthorDai, Dao Qing
Affiliation1.School of Mathematics, Jiaying University, Meizhou 514015, China.
2.Sun Yat-sen University, School of Mathematics, Guangzhou, 510275, China
3.Sun Yat-sen University, Key Laboratory of Machine Intelligence and Advanced Computing, Ministry of Education, Guangzhou, 510275, China
4.Jinan University, College of Information Science and Technology, Department of Mathematics, Guangzhou, 510632, China
5.University of Macau, Department of Computer and Information Science, Macau, Macao
Recommended Citation
GB/T 7714
Huang, Ke Kun,Ren, Chuan Xian,Liu, Hui,et al. Hyperspectral Image Classification via Discriminant Gabor Ensemble Filter[J]. IEEE Transactions on Cybernetics, 2021, 52(8), 8352-8365.
APA Huang, Ke Kun., Ren, Chuan Xian., Liu, Hui., Lai, Zhao Rong., Yu, Yu Feng., & Dai, Dao Qing (2021). Hyperspectral Image Classification via Discriminant Gabor Ensemble Filter. IEEE Transactions on Cybernetics, 52(8), 8352-8365.
MLA Huang, Ke Kun,et al."Hyperspectral Image Classification via Discriminant Gabor Ensemble Filter".IEEE Transactions on Cybernetics 52.8(2021):8352-8365.
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