航空兵器2024,Vol.31Issue(3) :94-100.DOI:10.12132/ISSN.1673-5048.2023.0221

基于场景上下文感知的光学遥感图像分类方法

Optical Remote Sensing Image Classification Method Based on Scene Context Perception

郭欣怡 张科 郭正玉 苏雨
航空兵器2024,Vol.31Issue(3) :94-100.DOI:10.12132/ISSN.1673-5048.2023.0221

基于场景上下文感知的光学遥感图像分类方法

Optical Remote Sensing Image Classification Method Based on Scene Context Perception

郭欣怡 1张科 1郭正玉 2苏雨1
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作者信息

  • 1. 西北工业大学,西安 710072
  • 2. 中国空空导弹研究院,河南洛阳 471009
  • 折叠

摘要

光学遥感图像分类是对地观测领域的关键技术之一.近年来,研究人员提出利用深度神经网络对光学遥感图像进行分类,针对部分网络模型存在特征提取不充分的问题,本文提出了一种基于场景上下文感知和注意力增强的ScEfficientNet遥感图像分类方法.该方法设计了场景上下文信息感知模块(SCDM)建模目标及其周围邻域的空间关系,利用场景上下文特征增强原始特征表示,引入卷积块注意力模块(CBAM),根据通道和空间的重要性对特征图进行加权,并结合深度可分离卷积结构提取目标判别性信息,提出了 ScMBConv卷积结构.在上述工作的基础上,利用基于场景上下文感知与注意力增强的ScEfficientNet网络模型进行遥感图像分类识别.实验结果表明,ScEfficientNet在AID数据集上实现了 96.8%的分类准确率,较EfficientNet提升了 3.3%,参数量为5.55 M,整体性能优于VGGNet19、GoogLeNet和ViT-B等图像分类算法,验证了 ScEfficientNet网络模型的有效性.

Abstract

Optical remote sensing image classification is one of the key technologies in the field of Earth observa-tion.In recent years,researchers have proposed optical remote sensing image classification using deep neural net-works.Aiming at the problem of inadequate feature extraction in some network models,this paper proposes a remote sensing image classification method based on scene context perception and attention enhancement,called ScEfficient-Net.This method designs a scene context-driven module(SCDM)to model the spatial relationship between the target and its surrounding neighborhood,enhancing the original feature representation with scene context features.It intro-duces a convolutional block attention module(CBAM)to weight the feature maps based on the importance of channels and spatial locations,and combines it with a depth-wise separable convolution structure to extract discriminative infor-mation of the targets,referred to as ScMBConv.Based on the above works,the ScEfficientNet model,which incorpo-rates scene context perception and attention enhancement,is used for remote sensing image classification.Experimental results show that ScEfficientNet achieves an accuracy of 96.8%in AID dataset,which is a 3.3%improvement over the original network,with a parameter count of 5.55 M.The overall performance is superior to other image classification algorithms such as VGGNet19,GoogLeNet and ViT-B,confirming the effectiveness of the ScEfficientNet model.

关键词

图像分类/光学遥感图像/卷积神经网络/EfficientNet

Key words

image classification/optical remote sensing image/convolutional neural network/EfficientNet

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基金项目

国家自然科学基金项目(62106200)

航空科学基金项目(20220001053002)

出版年

2024
航空兵器
中国空空导弹研究院

航空兵器

CSTPCDCSCD北大核心
影响因子:0.453
ISSN:1673-5048
参考文献量3
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