基于深度学习特征融合的遥感图像场景分类应用
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国家自然科学基金(61774137);山西省基础研究计划(202103021224195,202103021224212,202103021223189,20210302123019);山西省留学回国人员科研项目(2020-104,2021-108)


Remote sensing image scene classification based on deep learning feature fusion
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    摘要:

    针对传统手工特征方法无法有效提取整体图像深层信息的问题,本文提出一种基于深度学习特征融合的场景分类新方法.利用灰度共生矩阵(GLCM)和局部二值模式(LBP)提取具有相关空间特性的纹理特征和局部纹理特征的浅层信息;通过基于AlexNet迁移学习网络提取图像的深层信息,在去除最后一层全连接层的同时加入一层256维的全连接层作为特征输出;将两种特征进行自适应融合,最终输入到网格搜索算法优化的支持向量机(GS-SVM)中对遥感图像进行场景分类识别.在公开数据集UC Merced的21类目标数据和RSSCN7的7类目标数据的实验结果表明,5次实验的平均准确率分别达94.77%和93.79%.该方法可有效提升遥感图像场景的分类精度.

    Abstract:

    In view that traditional manual feature extraction method cannot effectively extract the overall deep image information, a new method of scene classification based on deep learning feature fusion is proposed for remote sensing images.First, the Grey Level Co-occurrence Matrix (GLCM) and Local Binary Patterns (LBP) are used to extract the shallow information of texture features with relevant spatial characteristics and local texture features as well;second, the deep information of images is extracted by the AlexNet migration learning network, and a 256-dimensional fully connected layer is added as feature output while the last fully connected layer is removed;and the two features are adaptively integrated, then the remote sensing images are classified and identified by the Grid Search optimized Support Vector Machine (GS-SVM).The experimental results on 21 types of target data of the public dataset UC Merced and 7 types of target data of RSSCN7 produced average accuracy rates of 94.77% and 93.79%, respectively, showing that the proposed method can effectively improve the classification accuracy of remote sensing image scenes.

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王李祺,张成,侯宇超,谭秀辉,程蓉,高翔,白艳萍.基于深度学习特征融合的遥感图像场景分类应用[J].南京信息工程大学学报(自然科学版),2023,15(3):346-356
WANG Liqi, ZHANG Cheng, HOU Yuchao, TAN Xiuhui, CHENG Rong, GAO Xiang, BAI Yanping. Remote sensing image scene classification based on deep learning feature fusion[J]. Journal of Nanjing University of Information Science & Technology, 2023,15(3):346-356

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  • 收稿日期:2022-03-22
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  • 在线发布日期: 2023-06-28
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