结合波段选择与改进 Shufflenetv2 的土地利用变化检测  

Land Use Change Detection Based on the Combination of Band Recombination and Improved Shufflenetv2

作　　者：朱旭阳 韦春桃[2] 何蔚 张冬冬 ZHU Xuyang;WEI Chuntao;HE Wei;ZHANG Dongdong(Architectural Engineering Institute,Jinhua Polytechnic,Jinhua 321000,China;School of Civil Engineering,Chongqing Jiaotong University,Chongqing 400074,China)

机构地区：[1]金华职业技术学院建筑工程学院,浙江金华321000 [2]重庆交通大学土木工程学院,重庆400074

出　　处：《测绘地理信息》2023年第6期88-93,共6页Journal of Geomatics

基　　金：重庆市基础科学与前沿技术研究专项重点项目(cstc2015jcyjBX0023);桂林市科学技术研究开发项目(20190601)。

摘　　要：为了使轻量级深度分类模型准确检测遥感图像中的土地利用变化区域,提出结合波段选择与改进Shufflenetv2的土地利用变化检测技术。首先通过基于波段选择的图像增强方法,针对性选择遥感图像的RGB波段组成突出图像中的地物特征;然后引入自适应卷积核尺度注意力机制对轻量级深度分类模型Shufflenetv2进行改进,自适应选取最佳尺度卷积核,提高模型特征提取能力,同时使用空洞卷积替换注意力机制模块中的普通卷积在获得相同感受野的条件下减少模型参数量;最后训练模型并应用于土地利用变化检测。将本文方法在Euro SAT数据集中进行实验。结果表明,基于波段选择的图像增强方法能够有效提高深度学习模型的检测精度。改进模型SK_Shufflenetv2在保持模型轻量化的同时具有良好的检测性能。In order to make the lightweight depth classifica⁃tion model accurately detect the land use change area in re⁃mote sensing image,a new land use change detection technol⁃ogy combining band recombination with Shufflenetv2 is pro⁃posed.Firstly,through the image enhancement method based on band reconstruction,the RGB bands of remote sensing im⁃ages are reconstructed to form the features of ground objects in the image.Then,selective kernel attention mechanism is introduced to improve Shufflenetv2,which adaptively selects the best scale convolution kernel to improve the feature extrac⁃tion ability of the model.At the same time,dilated convolu⁃tion is used to replace ordinary convolution in the attention mechanism module to reduce the number of model parameters under the condition that the same perceptual field is obtained.Finally,the model is trained and applied to land use change detection.The proposed method is tested in Euro SAT datas⁃et.The results show that the image enhancement method based on band reconstruction can effectively improve the de⁃tection accuracy of the deep learning model.SK_Shufflenetv2 model has good detection performance while keeping the mod⁃el lightweight.

关 键 词：波段选择 Shufflenetv2 土地利用变化检测 自适应卷积核尺度注意力机制 空洞卷积 

分 类 号：P237[天文地球—摄影测量与遥感]