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<div align="center"> <h1>HTD-Mamba </h1> <h3>Efficient Hyperspectral Target Detection with Pyramid State Space Model</h3>

Dunbin Shen<sup>1</sup> ,Xuanbing Zhu<sup>1</sup> ,Jiacheng Tian<sup>1</sup>, Jianjun Liu<sup>2</sup>, Zhenrong Du<sup>1</sup>, Hongyu Wang<sup>1</sup>, Xiaorui Ma<sup>1 :email:</sup>

<sup>1</sup> Dalian University of Technology, <sup>2</sup> Jiangnan University

(<sup>:email:</sup>) Corresponding author.

ArXiv Preprint (arXiv 2407.06841)

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Abstract

Hyperspectral target detection (HTD) identifies objects of interest from complex backgrounds at the pixel level, playing a vital role in Earth observation. However, HTD faces challenges due to limited prior knowledge and spectral variation, leading to underfitting models and unreliable performance. To address these challenges, this paper proposes an efficient self-supervised HTD method with a pyramid state space model (SSM), named HTD-Mamba, which employs spectrally contrastive learning to distinguish between target and background based on the similarity measurement of intrinsic features. Specifically, to obtain sufficient training samples and leverage spatial contextual information, we propose a spatial-encoded spectral augmentation technique that encodes all surrounding pixels within a patch into a transformed view of the center pixel. Additionally, to explore global band correlations, we divide pixels into continuous group-wise spectral embeddings and introduce Mamba to HTD for the first time to model long-range dependencies of the spectral sequence with linear complexity. Furthermore, to alleviate spectral variation and enhance robust representation, we propose a pyramid SSM as a backbone to capture and fuse multiresolution spectral-wise intrinsic features. Extensive experiments conducted on four public datasets demonstrate that the proposed method outperforms state-of-the-art methods in both quantitative and qualitative evaluations.

Overview

<div align="center"> <img src="assets/architecture.png" /> </div>

Installation

Evaluation

To evaluate HTD-Mamba on four public datasets, run:

CL_Main_Sandiego.py  
CL_Main_Sandiego2.py
CL_Main_LosAngeles.py
CL_Main_Pavia.py

Training

Acknowledgement

This project is based on Mamba (paper, code), Vim (paper, code). We thank the authors for their promising studies.

Citation

If you find HTD-Mamba useful in your research or applications, please consider giving us a star 🌟 and citing it using the following BibTeX entry.

 @article{shen2024htd,
  title={HTD-Mamba: Efficient Hyperspectral Target Detection with Pyramid State Space Model},
  author={Shen, Dunbin and Zhu, Xuanbing and Tian, Jiacheng and Liu, Jianjun and Du, Zhenrong and Wang, Hongyu and Ma, Xiaorui},
  journal={arXiv preprint arXiv:2407.06841},
  year={2024}
}