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Multiscale cross-fusion network for hyperspectral image classification.

Authors :
Pan, Haizhu
Zhu, Yuexia
Ge, Haimiao
Liu, Moqi
Shi, Cuiping
Source :
Egyptian Journal of Remote Sensing & Space Sciences; Dec2023, Vol. 26 Issue 3, p839-850, 12p
Publication Year :
2023

Abstract

Recently, hyperspectral image (HSI) classification methods based on deep-learning have attracted widespread attention. Convolutional neural networks, as a crucial deep-learning technique, have exhibited outstanding performance in HSI classification. However, there are still some challenges, such as limited labeled samples, and feature extraction of complex land cover objects. To address these challenges, in this paper, we propose a multiscale cross-fusion network for HSI classification. It consists of three components: a spectral signatures extraction network, a spatial features extraction network and a classification network, which are utilized to extract spectral signatures, extract spatial contextual information and generate classification results, respectively. Specifically, the cross-branch multiscale convolutional block and the channel global contextual attention are integrated to extract spectral signatures, and the cross-hierarchy multiscale convolutional blocks and the spatial global contextual attention are combined to extract spatial features. Furthermore, special fusion strategies are proposed in these blocks to promote the interaction between features and achieve better feature connectivity. A series of experiments are conducted on three public HCI datasets, and the results show that the overall accuracy of the proposed network is 0.57%, 0.61%, and 0.3% higher than that of the state-of-the-art method on the PU, SV, and HH datasets, respectively. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
11109823
Volume :
26
Issue :
3
Database :
Supplemental Index
Journal :
Egyptian Journal of Remote Sensing & Space Sciences
Publication Type :
Academic Journal
Accession number :
173342290
Full Text :
https://doi.org/10.1016/j.ejrs.2023.09.002