HSIMAE: A Unified Masked Autoencoder with large-scale pretraining for Hyperspectral Image Classification
✨ Highlights
Large-Scale and Diverse Dataset for HSI Pretraining
A large and diverse HSI dataset named HSIHybrid was curated for large-scale HSI pre-training. It consisted of 15 HSI datasets from different hyperspectral sensors. After splitting into image patches, a total of 4 million HSI patches with a spatial size of 9×9 were obtained.
New MAE Architecture for HSI domain
A modified MAE named HSIMAE that utilized separate spatial-spectral encoders followed by fusion blocks to learn spatial correlation and spectral correlation of HSI data was proposed.
Dual-branch finetuning to leverage unlabeled data of target dataset
A dual-branch fine-tuning framework was introduced to leverage the unlabeled data of the downstream HSI dataset and suppressed overfitting on small training samples.
🧑💻 Contact
Wang Yue
E-mail: [email protected]
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