arXiv:2410.09539cs.CV2024-10被引 1

提出新模型提升遥感图像变化检测精度,减少伪变化干扰。

Bi-temporal Gaussian Feature Dependency Guided Change Detection in Remote Sensing Images

  • 引入双时相高斯特征依赖机制,建模域差异与特征依赖关系。
  • 在四个数据集上F1分数提升最高达8.58%,显著降低伪变化。
  • 适合遥感图像分析、变化检测任务的研究者与工程师使用。

变化检测(CD)旨在识别同一区域不同时间拍摄图像间的差异。现有方法仍难以解决多时相图像中因域信息差异导致的伪变化,以及网络上采样过程中细节特征丢失和污染带来的细节误差。为此,本文提出双时相高斯分布特征依赖网络(BGFD)。首先引入高斯噪声域扰动(GNDD)模块,通过图像统计特征近似分布,采样噪声扰动网络以学习冗余域信息,从更根本层面缓解域差异问题。其次,在特征依赖促进(FDF)模块中,设计新型互信息差损失($L_{MI}$)与更精细的注意力机制,增强网络对关键域信息的捕捉能力。此外,设计新颖的细节特征补偿(DFC)模块,从增强局部特征和优化全局特征两方面补偿上采样过程中的细节损失与污染。BGFD有效减少了伪变化,提升了细节检测能力,在四个公开数据集(DSIFN-CD、SYSU-CD、LEVIR-CD、S2Looking)上分别取得+8.58%、+1.28%、+0.31%、+3.76%的F1-Score提升,达到当前最优性能。

原文摘要 · Abstract (English)

Change Detection (CD) enables the identification of alterations between images of the same area captured at different times. However, existing CD methods still struggle to address pseudo changes resulting from domain information differences in multi-temporal images and instances of detail errors caused by the loss and contamination of detail features during the upsampling process in the network. To address this, we propose a bi-temporal Gaussian distribution feature-dependent network (BGFD). Specifically, we first introduce the Gaussian noise domain disturbance (GNDD) module, which approximates distribution using image statistical features to characterize domain information, samples noise to perturb the network for learning redundant domain information, addressing domain information differences from a more fundamental perspective. Additionally, within the feature dependency facilitation (FDF) module, we integrate a novel mutual information difference loss ($L_{MI}$) and more sophisticated attention mechanisms to enhance the capabilities of the network, ensuring the acquisition of essential domain information. Subsequently, we have designed a novel detail feature compensation (DFC) module, which compensates for detail feature loss and contamination introduced during the upsampling process from the perspectives of enhancing local features and refining global features. The BGFD has effectively reduced pseudo changes and enhanced the detection capability of detail information. It has also achieved state-of-the-art performance on four publicly available datasets - DSIFN-CD, SYSU-CD, LEVIR-CD, and S2Looking, surpassing baseline models by +8.58%, +1.28%, +0.31%, and +3.76% respectively, in terms of the F1-Score metric.

变化检测遥感图像特征补偿高斯分布

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