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<p>The increasing frequency of extreme rainfall events has triggered a significant rise in landslides, making accurate and timely detection essential for effective disaster management. However, the scarcity of annotated landslide data in target regions severely limits the performance of deep learning-based mapping models, especially in emergency scenarios. To address this challenge, this study proposes an innovative Style-Pix2Pix GAN framework capable of autonomously synthesizing high-fidelity landslide data from limited real samples. The framework employs a dual-network architecture: StyleGAN2 generates realistic landslide masks by capturing the morphological patterns and spatial structures of real landslides, while Pix2Pix GAN reconstructs the corresponding optical images by learning a conditional mapping between masks and images. Experiments on the Shaoguan Landslide Dataset demonstrate the effectiveness of the proposed framework. The synthetic data exhibit geometric complexity and spectral characteristics that closely resemble those of real landslides. The integration of synthetic data and real samples can enhance the training of semantic segmentation models for landslide mapping. Models trained on this combined dataset exhibit superior performance in landslide identification compared to those trained using only real data.</p>

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A style-Pix2Pix GAN framework for data augmentation in landslide semantic segmentation

  • 期刊论文

  • 发表日期：

    2025年9月17日

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  • Tianhe Ren,
  • Wenping Gong,
  • Federico Agliardi,
  • Liang Gao,
  • Xuyang Xiang

摘要

The increasing frequency of extreme rainfall events has triggered a significant rise in landslides, making accurate and timely detection essential for effective disaster management. However, the scarcity of annotated landslide data in target regions severely limits the performance of deep learning-based mapping models, especially in emergency scenarios. To address this challenge, this study proposes an innovative Style-Pix2Pix GAN framework capable of autonomously synthesizing high-fidelity landslide data from limited real samples. The framework employs a dual-network architecture: StyleGAN2 generates realistic landslide masks by capturing the morphological patterns and spatial structures of real landslides, while Pix2Pix GAN reconstructs the corresponding optical images by learning a conditional mapping between masks and images. Experiments on the Shaoguan Landslide Dataset demonstrate the effectiveness of the proposed framework. The synthetic data exhibit geometric complexity and spectral characteristics that closely resemble those of real landslides. The integration of synthetic data and real samples can enhance the training of semantic segmentation models for landslide mapping. Models trained on this combined dataset exhibit superior performance in landslide identification compared to those trained using only real data.