Laser Journal, Volume. 46, Issue 3, 98(2025)
A lifelong learning method for hyperspectral image classification using multi-level knowledge distillation
To address the catastrophic forgetting problem in lifelong learning, this paper proposes a lifelong learning method for hyperspectral image classification using multi-level knowledge distillation. Initially, a feature extractor based on multi-modal alignment is designed to fully leverage the spatial-spectral information and label text information of hyperspectral images. Additionally, a multi-level knowledge distillation strategy is devised to effectively preserve the multi-modal knowledge from previous phases. The proposed method was experimented on two public hyperspectral datasets. Compared to current state-of-the-art methods, the proposed method showed an average accuracy improvement of 15%-18% on the Pavia University dataset and 1%-8% on the Botswana dataset.
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JIANG Zihui, LI Zhaokui, WANG Ke. A lifelong learning method for hyperspectral image classification using multi-level knowledge distillation[J]. Laser Journal, 2025, 46(3): 98
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Received: Oct. 24, 2024
Accepted: Jun. 12, 2025
Published Online: Jun. 12, 2025
The Author Email: LI Zhaokui (lzk@sau.edu.cn)