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Dictionary cache transformer for hyperspectral image classification
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DOI：10.1007/s10489-023-04934-5.png)
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摘要
En 中文
The spectral anomalies, limited training samples, and noisy training labels pose significant challenges to accurately classifying hyperspectral images (HSIs). To address these issues, we propose a novel dictionary cache transformer (DiCT) for HSIs classification, leveraging a combination of a group self-attention mechanism and a dictionary cache module. Specifically, the group self-attention mechanism binds the features local to the pixel into a group, thus alleviating the interference caused by pixel spectral anomalies. Furthermore, we capture representative structural information from different samples using their discriminative features to construct the dictionary cache module. The dictionary cache module enhances features by fusing sample features and the most similar element in the dictionary cache, thus improving the model's resilience to noisy training labels. Experiments on five HSIs datasets demonstrate the proposed DiCT's superiority in classification performance and robustness to noisy training labels.
Keyword:
Vision transformer
Dictionary cache
Hyperspectral image classification
Noisy training labels
Feature enhancement
期刊
IF:
3.5
论文数:
7.6K
被引数:
1.7W
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