Nonlocal graph theory based transductive learning for hyperspectral image classification

Huang, Baoxiang; Ge, Linyao; Chen, Ge; Radenkovic, Milena; Wang, Xiaopeng; Duan, Jinming; Pan, Zhenkuan

Abstract

Hyperspectral Image classification plays an important role in the maintenance of remote image analysis, which has been attracting a lot of research interest. Although various approaches, including unsupervised and supervised methods, have been proposed, obtaining a satisfactory classification result is still a challenge. In this paper, an efficient transductive learning method using variational nonlocal graph theory for hyperspectral image classification is proposed. First, the nonlocal vector neighborhood similarity is employed to build sparse graph representation. Then the variational segmentation framework is extended to label space, and the vectorization nonlocal energy function is constructed. Next, a fast comprehensive alternating minimization iteration algorithm is designed to implement labels transductive learning. At the same time, the labeled sample constraints are doubled ensured with simplex projection. Finally, experiments on six widely used hyperspectral image datasets are implemented, compared with other state-of-the-art classification methods, the classification results demonstrate that the proposed method has higher classification performance. Benefiting from graph theory and transductive idea, the proposed classification method can propagate labels and overcome the very high dimensionality and limited labeling problem to some extent.

Citation

Huang, B., Ge, L., Chen, G., Radenkovic, M., Wang, X., Duan, J., & Pan, Z. (2021). Nonlocal graph theory based transductive learning for hyperspectral image classification. Pattern Recognition, 116, Article 107967. https://doi.org/10.1016/j.patcog.2021.107967

• Journal Article Type: Article
• Acceptance Date: Mar 27, 2021
• Online Publication Date: Apr 2, 2021
• Publication Date: 2021-08
• Deposit Date: Jan 28, 2025
• Publicly Available Date: Jan 28, 2025
• Journal: Pattern Recognition
• Print ISSN: 0031-3203
• Electronic ISSN: 0031-3203
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 116
• Article Number: 107967
• DOI: https://doi.org/10.1016/j.patcog.2021.107967
• Keywords: Transductive learning, Nonlocal graph, Label propagation, Variational method, Alternating direction method of multipliers, Hyperspectral image classification
• Public URL: https://nottingham-repository.worktribe.com/output/44686280
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S0031320321001540?via%3Dihub
• Additional Information: This article is maintained by: Elsevier; Article Title: Nonlocal graph theory based transductive learning for hyperspectral image classification; Journal Title: Pattern Recognition; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.patcog.2021.107967; Content Type: article; Copyright: © 2021 Elsevier Ltd. All rights reserved.