Journal
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
Volume 19, Issue -, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LGRS.2021.3126594
Keywords
Adaptation models; Training; Compaction; Hyperspectral imaging; Transfer learning; Task analysis; Mathematical models; Adversarial training; domain adaptation (DA); hyperspectral image (HSI) classification; transfer learning
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Funding
- Science Foundation of Liaoning Province (Surface Project) [LJKZ0065]
- National Nature Science Foundation of China [61971082]
- Fundamental Research Funds for the Central Universities [3132017124]
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The study introduces a novel unsupervised domain adaptation approach with content-wise alignment to decrease the distribution gap between different domains, achieving more effective performance for hyperspectral image classification.
Unsupervised domain adaptation (UDA) attempts to boost the performance on an unlabeled target domain by transferring knowledge from a labeled source domain. The previous models consider domain-level discrepancy while neglecting content-level distinction. To further decrease the distribution gap between different domains, this letter proposes a novel UDA approach with content-wise alignment for hyperspectral image classification (HSIC). We accomplish feature alignment with content-wise discrepancy reduction through an adversarial framework for the first time. Expressly, the core of the proposed content-wise scheme is integrated with a class-level and style-perceive-level regularized alignment to strengthen the representation of invariant feature. The experimental analysis demonstrates that the proposed model achieves more effective performance than other domain adaptation methods for hyperspectral image (HSI).
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