基于多尺度扩张卷积神经网络的城中村遥感识别
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

国家重点研发计划项目(2018YFE0122700)、国家自然科学基金项目(42001367、42171113)和资源与环境信息系统国家重点实验室开放基金项目


Identification of Urban Villages from Remote Sensing Image Based on Multi-scale Dilated Convolutional Neural Network
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    城中村是我国快速城市化进程中的一个特殊产物,通常存在人口密集、建筑私自改造等问题。开展城中村的识别和监测对城乡统筹规划以及精细化治理等具有重要意义。基于深度学习提出了一种新的城中村遥感识别模型,该模型包括一个多尺度扩张卷积模块和一个非局部特征提取模块,前者能够聚合多层级空间特征以适应城中村形状、尺度的变异性;后者用于提取全局语义特征以提高城中村的类间可分性。选取北京市二环与六环之间的区域作为研究区,实验结果表明本文模型取得了较好的识别效果,总体精度可达94.27%,Kappa系数为0.8839,且效果优于传统模型。本文研究表明,基于多尺度扩张卷积神经网络进行城中村遥感识别是可行且有效的,可为城乡统筹规划提供精确的城中村空间分布数据。

    Abstract:

    Urban villages (UVs) belong to a special product of China’s rapid urbanization process, which have similar properties to the informal settlements abroad. Specifically, UVs in China usually have a high population density due to the reconstruction of buildings, making it a big challenge in China’s urban and rural sustainable development. Especially under the background of “promoting the newtype urbanization” issued by the government, timely and accurate identification of UVs is of great significance to both urbanrural planning and urban fine management. Researchers usually obtain the spatial information of UVs by field research in traditional studies, which is both laboursome and tedious. Remote sensing, on the other hand, has the merits of synoptic view, dynamic and fast screening of the earth surface, which has been recently applied in the recognition of UVs. Meanwhile, deep learning has shed new light on UVs’identification due to its capability in learning high-level abstract image features, however, it has been rarely documented in the mapping of UVs. Therefore, the objective was to propose a deep learning model for UVs’recognition from very high resolution (VHR) remote sensing images. In specific, the proposed model was a multi-scale dilated convolutional neural network (MD-CNN), which included a series of multi-scale dilated convolutions and a non-local feature extraction module. The former can aggregate multi-level spatial features to adapt to the variability of UVs’shapes and scales, while the latter extracted global semantic features to improve the inter-class divisibility. The experimental results in Beijing City showed that the proposed model achieved good performance with an overall accuracy of 94.27% and a Kappa coefficient of 0.8839, which was better than that of several previous deep learning models such as VGG, ResNet and DenseNet. The research result demonstrated that by using the deep learning model, it was feasible and effective to accurately identify UVs from VHR remote sensing images, which could provide useful geo-spatial distribution of UVs for urban-rural planning.

    参考文献
    相似文献
    引证文献
引用本文

冯权泷,陈泊安,牛博文,任燕,王莹,刘建涛.基于多尺度扩张卷积神经网络的城中村遥感识别[J].农业机械学报,2021,52(11):181-189,218. FENG Quanlong, CHEN Boan, NIU Bowen, REN Yan, WANG Ying, LIU Jiantao. Identification of Urban Villages from Remote Sensing Image Based on Multi-scale Dilated Convolutional Neural Network[J]. Transactions of the Chinese Society for Agricultural Machinery,2021,52(11):181-189,218.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2020-11-19
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2021-11-10
  • 出版日期: