Land cover classification from remote sensing images based on multi-scale fully convolutional network

Rui Li, Shunyi Zheng, Chenxi Duan*, Libo Wang, Ce Zhang

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

96 Citations (Scopus)

Abstract

Although the Convolutional Neural Network (CNN) has shown great potential for land cover classification, the frequently used single-scale convolution kernel limits the scope of information extraction. Therefore, we propose a Multi-Scale Fully Convolutional Network (MSFCN) with a multi-scale convolutional kernel as well as a Channel Attention Block (CAB) and a Global Pooling Module (GPM) in this paper to exploit discriminative representations from two-dimensional (2D) satellite images. Meanwhile, to explore the ability of the proposed MSFCN for spatio-temporal images, we expand our MSFCN to three-dimension using three-dimensional (3D) CNN, capable of harnessing each land cover category’s time series interaction from the reshaped spatio-temporal remote sensing images. To verify the effectiveness of the proposed MSFCN, we conduct experiments on two spatial datasets and two spatio-temporal datasets. The proposed MSFCN achieves 60.366% on the WHDLD dataset and 75.127% on the GID dataset in terms of mIoU index while the figures for two spatio-temporal datasets are 87.753% and 77.156%. Extensive comparative experiments and ablation studies demonstrate the effectiveness of the proposed MSFCN. Code will be available at https://github.com/lironui/MSFCN.

Original languageEnglish
Pages (from-to)278-294
Number of pages17
JournalGeo-Spatial Information Science
Volume25
Issue number2
Early online date7 Jan 2022
DOIs
Publication statusPublished - 1 Jul 2022

Bibliographical note

Funding Information:
This work is supported by the National Natural Science Foundation of China [grant number 41671452].

Publisher Copyright:
© 2022 Wuhan University. Published by Informa UK Limited, trading as Taylor & Francis Group.

Keywords

  • land cover classification
  • Multi-Scale Fully Convolutional Network
  • Spatio-temporal remote sensing images

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