用于高光谱图像分类的光谱空间波和频率交互变压器
Tahir Arshad1, Bo Peng1, Ali Rahman2
1School of Computing and Artificial Intelligence, Southwest Jiaotong University, Chengdu, China.
Scientific reports
|July 27, 2025
概括
这项研究引入了一种用于高光谱图像分类的新型变压器模型,有效地整合频率和相位信息,以获得卓越的光谱空间特征提取和更高的准确性.
科学领域:
- 遥感 遥感 遥感 遥感
- 计算机视觉 计算机视觉
- 机器学习 机器学习
背景情况:
- 准确的高光谱图像 (HSI) 分类需要高效的光谱空间特征提取.
- 现有的方法往往忽略了区分频域组件,因为它们运行在原始输入上.
- 卷积神经网络 (CNN) 和变压器分别在局部和全球依赖方面表现出色,但缺乏明确的频率分析.
研究的目的:
- 开发一种新的光谱空间波和频率交互变压器,用于HSI分类.
- 将频率感知和相位感知令牌表示集成到一个统一的变压器框架中.
- 通过结合明确的频域分解来克服现有架构的局限性.
主要方法:
- 利用CNN的骨干进行初始的光谱空间特征提取.
- 开发了一种频域变压器编码器,配备了互补的光谱空间频率和波浪发生器.
- 采用光谱空间交互模块和局部全球调制器来进行特征融合和改进.
主要成果:
- 拟议的模型在五个基准HSI数据集上实现了最先进的分类性能.
- 证明了高的整体准确率:98.49%,98.60%,99.07%,98.29%和97.97%.
- 始终优于现有的HSI分类方法.
结论:
- 频率和相位信息的整合显著提高了光谱空间特征表示.
- 拟议的光谱空间波和频率交互变压器为HSI分类提供了一个强大的新方法.
- 该模型的有效性通过其在多个数据集中的卓越性能来验证.
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