Graph Aggregation Prototype Learning for Semantic Change Detection in Remote Sensing

• URL: http://arxiv.org/abs/2507.10938v1
• Date: Tue, 15 Jul 2025 03:03:29 GMT
• Title: Graph Aggregation Prototype Learning for Semantic Change Detection in Remote Sensing
• Authors: Zhengyi Xu, Haoran Wu, Wen Jiang, Jie Geng,
• Abstract summary: We propose graph aggregation prototype learning for semantic change detection in remote sensing.<n>Our method achieves state-of-the-art performance, with significant improvements in accuracy and robustness for SCD task.
• Score: 11.262559117458304
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Semantic change detection (SCD) extends the binary change detection task to provide not only the change locations but also the detailed "from-to" categories in multi-temporal remote sensing data. Such detailed semantic insights into changes offer considerable advantages for a wide array of applications. However, since SCD involves the simultaneous optimization of multiple tasks, the model is prone to negative transfer due to task-specific learning difficulties and conflicting gradient flows. To address this issue, we propose Graph Aggregation Prototype Learning for Semantic Change Detection in remote sensing(GAPL-SCD). In this framework, a multi-task joint optimization method is designed to optimize the primary task of semantic segmentation and change detection, along with the auxiliary task of graph aggregation prototype learning. Adaptive weight allocation and gradient rotation methods are used to alleviate the conflict between training tasks and improve multi-task learning capabilities. Specifically, the graph aggregation prototype learning module constructs an interaction graph using high-level features. Prototypes serve as class proxies, enabling category-level domain alignment across time points and reducing interference from irrelevant changes. Additionally, the proposed self-query multi-level feature interaction and bi-temporal feature fusion modules further enhance multi-scale feature representation, improving performance in complex scenes. Experimental results on the SECOND and Landsat-SCD datasets demonstrate that our method achieves state-of-the-art performance, with significant improvements in accuracy and robustness for SCD task.

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