Multi-temporal hyperspectral image change detection method based on multi-scale feature fusion
CN118570646BActive Publication Date: 2026-10-27LIAONING NORMAL UNIVERSITY
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Patent Information
- Application Number
- CN202410774330.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2044-06-17
AI Technical Summary
Technical Problem
然而,在采样过程中存在着丢失细节信息的情况、很难对复杂的光谱特征进行准确捕捉和对局部特征的提取不尽如人意等问题,如何解决高光谱影像大数据所带来的标注样本问题,如何有针对性的构建有效的网络模型提高变化检测的效率和精度等作为一项具有挑战性的工作还有待进一步研究
Benefits of technology
[0007]本发明采用一种双分支网络结构,用于提取不同时相的特征;同时为了能对复杂光谱特征进行准确捕捉,对特征进行多尺度考虑,使用基于通道注意力机制的动态卷积模块实现对不同波段特征的自适应调整,使网络更加灵活地关注于重要的波段,提高对高光谱数据中复杂光谱特征的感知和捕捉能力;多尺度特征融合模块在深层特征上运行,通过多尺度特征提取和融合来增强模型对局部信息的感知能力。通过在三个真实世界的高光谱影像变化检测数据集上进行实验,结果显示,与当前先进的变化检测方法相比,本发明所提出的网络在有效性和性能上均表现出显著的优越性。因此,本发明具有特征提取质量好、检测精度高、所需训练样本少的特点。
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Abstract
The application discloses a multi-temporal hyperspectral image change detection method based on multi-scale feature fusion, adopts a double-branch network structure, and is used for extracting features of different time phases. Meanwhile, in order to accurately capture complex spectral features, the dynamic convolution module is used for considering the features in multiple scales, the channel attention mechanism is introduced, the adaptive adjustment of different band features is realized, and the perception and capture ability of the model for complex spectral features in hyperspectral data is improved. The multi-scale feature fusion module runs on deep features, through multi-scale feature extraction and fusion, the perception ability of the model for local information is enhanced. Through experiments on three real-world hyperspectral image change detection data sets, the results show that, compared with current advanced change detection methods, the application has significant superiority in effectiveness and performance.
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