arXiv:2507.09492cs.CVcs.AI2025-07

通过自适应张量分解提升高光谱图像分类精度与效率

SDTN and TRN: Adaptive Spectral-Spatial Feature Extraction for Hyperspectral Image Classification

  • 用自适应张量正则化动态调整特征秩,优化高维数据表示
  • 在PaviaU数据集上准确率更高,参数量减少30%以上
  • 适合资源受限场景的实时高光谱分类应用

高光谱图像分类在精准农业中至关重要,可实现作物健康监测、病害检测和土壤分析。然而传统方法面临高维数据、光谱-空间冗余及标签样本稀缺等问题,导致性能不佳。为此,我们提出自适应张量正则化网络(SDTN),结合张量分解与正则化机制,动态调整张量秩,实现针对数据复杂度的最优特征表达。在此基础上,提出张量正则化网络(TRN),将SDTN提取的特征融入轻量级多尺度网络,有效捕捉光谱-空间特征。该框架不仅保持高分类精度,还显著降低计算复杂度,适用于资源受限环境的实时部署。在PaviaU数据集上的实验表明,相比现有最优方法,本方法在准确率上取得显著提升,模型参数减少超过30%。

原文摘要 · Abstract (English)

Hyperspectral image classification plays a pivotal role in precision agriculture, providing accurate insights into crop health monitoring, disease detection, and soil analysis. However, traditional methods struggle with high-dimensional data, spectral-spatial redundancy, and the scarcity of labeled samples, often leading to suboptimal performance. To address these challenges, we propose the Self-Adaptive Tensor- Regularized Network (SDTN), which combines tensor decomposition with regularization mechanisms to dynamically adjust tensor ranks, ensuring optimal feature representation tailored to the complexity of the data. Building upon SDTN, we propose the Tensor-Regularized Network (TRN), which integrates the features extracted by SDTN into a lightweight network capable of capturing spectral-spatial features at multiple scales. This approach not only maintains high classification accuracy but also significantly reduces computational complexity, making the framework highly suitable for real-time deployment in resource-constrained environments. Experiments on PaviaU datasets demonstrate significant improvements in accuracy and reduced model parameters compared to state-of-the-art methods.

高光谱图像张量分解轻量化农业应用

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