Reliable Contrastive Learning for Semi-supervised Change Detection in Remote Sensing Images

Jia-Xin Wang, Teng Li*, Si-Bao Chen*, Jin Tang, Bin Luo, Richard Charles Wilson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

With the development of deep learning in remote sensing image change detection, the dependence of change detection models on labeled data has become an important problem. To make better use of the comparatively resource-saving unlabeled data, the change detection method based on semi-supervised learning is worth further study. This paper proposes a reliable contrastive learning method for semi-supervised remote sensing image change detection. First, according to the task characteristics of change detection, we design the contrastive loss based on the changed areas to enhance the model’s feature extraction ability for changed objects. Then, to improve the quality of pseudo labels in semi-supervised learning, we use the uncertainty of unlabeled data to select reliable pseudo labels for model training. Combining these methods, semi-supervised change detection models can make full use of unlabeled data. Extensive experiments on three widely used change detection datasets demonstrate the effectiveness of the proposed method. The results show that our semi-supervised approach has better performance than related methods. The code is available at https://github.com/VCISwang/RC-Change-Detection.
Original languageEnglish
Article number4416413
Number of pages13
JournalIEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
Volume60
DOIs
Publication statusPublished - 7 Dec 2022

Bibliographical note

This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details

Cite this