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SSLChange: A Self-supervised Change Detection Framework Based on Domain Adaptation
  • +2
  • Yitao Zhao,
  • Turgay Celik,
  • Nanqing Liu,
  • Feng Gao,
  • Heng-Chao Li
Yitao Zhao

Corresponding Author:[email protected]

Author Profile
Turgay Celik
Nanqing Liu
Feng Gao
Heng-Chao Li

Abstract

In conventional remote sensing change detection (RS CD) procedures, extensive manual labeling for bi-temporal images is first required to maintain the performance of subsequent fully supervised training. However, pixel-level labeling for CD tasks is very complex and time-consuming. In this paper, we explore a novel self-supervised contrastive framework applicable to the RS CD task, which promotes the model to accurately capture spatial, structural, and semantic information through domain adapter and hierarchical contrastive head. The proposed SSLChange framework accomplishes self-learning only by taking a single-temporal sample and can be flexibly transferred to mainstream CD baselines. With self-supervised contrastive learning, feature representation pre-training can be performed directly based on the original data even without labeling. After a certain amount of labels are subsequently obtained, the pre-trained features will be aligned with the labels for fully supervised finetuning. Without introducing any additional data or labels, the performance of downstream baselines will experience a significant enhancement. Experimental results on 2 entire datasets and 6 diluted datasets show that our proposed SSLChange improves the performance and stability of CD baseline in data-limited situations. The code of SSLChange will be released at https: //github.com/MarsZhaoYT/SSLChange
28 May 2024Submitted to TechRxiv
04 Jun 2024Published in TechRxiv