基于统一注意力融合网络的耕地变化检测  

Detection of Farmland Change Based on Unified Attention Fusion Network

作　　者：李滔 王海瑞[1] 朱贵富[2] LI Tao;WANG Hairui;ZHU Guifu(Faculty of Information Engineering and Automation,Kunming University of Science and Technology,Kunming 650500,China;Information Construction Management Center,Kunming University of Science and Technology,Kunming 650500,China)

机构地区：[1]昆明理工大学信息工程与自动化学院,昆明650500 [2]昆明理工大学信息化建设管理中心,昆明650500

出　　处：《计算机科学》2023年第S02期993-998,共6页Computer Science

基　　金：国家自然科学基金(61863016,61263023)。

摘　　要：为了快速摸清农村乱占耕地建房底数,实现对侵占耕地房屋的检测,提出了一种统一注意力融合网络(Unified Attention Fusion Network)用于农村占用耕地建房识别。为了解决不同时相遥感影像特征相互影响的问题,首先使用孪生网络代替VGG16网络进行特征提取。其次,为了在增大网络感受野并获取更多多尺度信息的前提下减小网络模型大小,在编码阶段最底层使用了简易金字塔池化(Simple Pyramid Pooling Module,SPPM);在解码阶段,为了提高分割精度,突出有用特征,提高边缘分割精度,使用统一注意力融合模块(Unified Attention Fusion Module,UAFM)替换原始的上采样部分进行解码,获取变化检测结果。网络在占用耕地建房数据集上进行了训练和测试。实验结果表明,统一注意力融合网络在测试集上准确率(Accuracy)达到98.82%、精确率(Precision)达到89.69%、召回率(Recall)达到82.14%、F1分数(F1 Score)达到85.74%,能够快速识别不同尺度的疑似占用耕地的违建房屋,为农村乱占耕地建房整治工作提供一种技术检测方法。In order to quickly find out the number of houses built on arable land illegally occupied and realize the detection of houses built on encroached farmland,a unified attention fusion network is proposed to identify houses built on encroached farmland.In order to solve the problem of mutual influence of remote sensing image features in different phases,the network firstly uses siamese network instead of VGG16 network for feature extraction.Secondly,in order to reduce the size of network model on the premise of increasing the receptive field of network and obtaining more multi-scale information,simple pyramid pooling module is used at the bottom layer of coding stage.In order to improve the segmentation accuracy,highlight the useful features and use the unified attention fusion module to replace the original upsampling part for decoding to obtain the change detection results.The network is trained and tested on the data set of building houses on encroached farmland.Experimental results show that the unified attention fusion network has an accuracy rate of 98.82%,precision of 89.69%,recall rate of 82.14%,and F1 score of 85.74%on the test set.It can quickly identify illegal houses suspected of occupying farmland at different scales,and provide a technical detection method for the construction of houses in rural areas.

关 键 词：遥感影像 变化检测 建筑物检测 统一注意力融合网络 简易金字塔池化 

分 类 号：P237[天文地球—摄影测量与遥感]