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Transformer-Driven Active Transfer Learning for Cross-Hyperspectral Image Classification

delete2025-01-01
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OA
AI
M
Muhammad Ahmad
F
F. Mauro
R
Rana Aamir Raza
M
Manuel Mazzara
D
Distefano, Salvatore
A
Adil Khan
S
Silvia Liberata Ullo
DOI:10.1109/JSTARS.2025.3594108delete
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摘要

摘要

En 中文
高光谱图像(HSI)分类由于高光谱维度、显著的领域偏移以及标注数据有限性而面临固有挑战。为解决这些问题,我们提出了一种基于空间-光谱Transformer(SST)骨干网络的新型主动迁移学习(ATL)框架。该框架将多阶段迁移学习与不确定性-多样性驱动的主动学习机制相结合,该机制通过策略性地选择信息量高且多样化的样本进行标注,从而显著降低标注成本并缓解样本冗余。引入动态层冻结策略以增强迁移能力和计算效率,使模型层能够根据领域偏移特性进行选择性适应。此外,我们融入了自校准注意力机制,该机制在适应过程中动态优化空间和光谱权重,并受不确定性感知反馈的指导。多样性促进采样策略确保所选样本具有广泛的谱段覆盖,防止模型过度拟合特定类别。在基准跨域HSI数据集上的广泛实验表明,所提出的SST–ATL框架相较于传统方法实现了更优的分类性能。
Keyword:
Hyperspectral image (HSI) classification
active learning (AL)
hybrid query function
transfer learning
spatial-spectral transformer (SST)

期刊

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 封面图
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
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5.3
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1.7K
被引数:
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