On the Adversarial Robustness of Remote Sensing Semantic Change Detection

• URL: http://arxiv.org/abs/2608.15267v1
• Date: Sat, 15 Aug 2026 15:02:42 GMT
• Title: On the Adversarial Robustness of Remote Sensing Semantic Change Detection
• Abstract summary: Semantic change detection (SCD) is a bitemporal dense-prediction task that jointly identifies changed regions and their semantic states before and after change.<n>We present a task-specific evaluation framework that separates output-side attack objectives from input-side temporal perturbation access.<n>Experiments show that final semantic-change predictions can be severely corrupted even when binary change localization remains comparatively stable.
• Score: 19.4097466391406
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Semantic change detection (SCD) is a bitemporal dense-prediction task that jointly identifies changed regions and their semantic states before and after change. Unlike single-image segmentation or binary change detection, SCD couples two temporal inputs with timestamp-wise semantic prediction, change localization, and final semantic-change decoding, creating adversarial dependencies that are not captured by conventional robustness protocols. We present a task-specific evaluation framework that separates output-side attack objectives from input-side temporal perturbation access, enabling systematic analysis of component vulnerability and cross-temporal propagation. Experiments on four datasets and six representative CNN-, Transformer-, and state-space-based models evaluate component-level and temporal objectives, single- and dual-timestamp perturbations, multiple attack methods, and cross-architecture transferability. The results show that final semantic-change predictions can be severely corrupted even when binary change localization remains comparatively stable, and that perturbations or attack objectives associated with one timestamp can propagate to the prediction of the other. These behaviors occur across different architecture families, while direct cross-model transfer remains considerably weaker than white-box attacks. The study demonstrates that adversarial robustness in SCD depends on the complete bitemporal prediction pathway rather than on an individual branch or backbone family, and provides a structured protocol for evaluating robustness in coupled bitemporal image analysis. Code is available at https://github.com/EricYu97/AdvSCD.

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