Change detection is widely applied in remote sensing image analysis. Existing methods require training models separately for each dataset, which leads to poor domain generalization. Moreover, these methods rely heavily on large amounts of high-quality pair-labelled data for training, which is expensive and impractical. In this paper, we propose a multimodal contrastive learning (ChangeCLIP) based on visual-language pre-training for change detection domain generalization. Additionally, we propose a dynamic context optimization for prompt learning. Meanwhile, to address the data dependency issue of existing methods, we introduce a single-temporal and controllable AI-generated training strategy (SAIN). This allows us to train the model using a large number of single-temporal images without image pairs in the real world, achieving excellent generalization. Extensive experiments on series of real change detection datasets validate the superiority and strong generalization of ChangeCLIP, outperforming state-of-the-art change detection methods. Code will be available.

本文提出了基于可视化-语言预训练的多模态对比学习（ChangeCLIP）用于变化检测领域的广义化。同时，还提出了动态语境优化的提示学习方法。此外，为了解决现有方法中的数据依赖性问题，引入了基于单时序和可控的AI生成训练策略（SAIN）。通过在真实世界的大量单时序图像上训练模型而无需图像对，ChangeCLIP实现了出色的广义化能力。大量实验验证了ChangeCLIP在一系列真实变化检测数据集上的优越性和强大的广义化能力，胜过了现有的最先进变化检测方法。代码将会提供。

领域通用的单时序监督遥感变化检测