本项目基于ImageNet数据集预训练的VGG16和ResNet34网络模型，微调以提取遥感图像特征。我们尝试了多种特征聚合方法，通过使用PCA降维技术和扩展查询技术来优化特征存储、向量计算和特征检索效果。此外，我们还采用局部敏感哈希算法（LSH）实现了大规模遥感图像检索。该算法在UCMD数据集上进行了性能验证。
☆27Mar 31, 2023Updated 3 years ago
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