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图学学报 ›› 2026, Vol. 47 ›› Issue (2): 296-310.DOI: 10.11996/JG.j.2095-302X.2026020296

• 图像处理与计算机视觉 • 上一篇    下一篇

面向积水干扰的变电设备渗漏油精准分割方法

赵振兵1,2,3(), 张靖梁1, 唐辰康1, 毕雨轩1, 李浩鹏1,2   

  1. 1 华北电力大学电子与通信工程系河北 保定 071003
    2 华北电力大学河北省电力物联网技术重点实验室河北 保定 071003
    3 华北电力大学复杂能源系统智能计算教育部工程研究中心河北 保定 071003
  • 收稿日期:2025-07-31 接受日期:2025-10-10 出版日期:2026-04-30 发布日期:2026-05-20
  • 通讯作者:赵振兵,E-mail:zhaozhenbing@ncepu.edu.cn
  • 基金资助:
    国家自然科学基金(62571189);国家自然科学基金(62373151);国家自然科学基金(62371188);国家自然科学基金(62303184);中央高校基本科研业务费专项资金(2023JC006)

Precise-oil leakage segmentation for substation equipment under water-accumulation interference

ZHAO Zhenbing1,2,3(), ZHANG Jingliang1, TANG Chenkang1, BI Yuxuan1, LI Haopeng1,2   

  1. 1 Department of Electronic and Communication Engineering, North China Electric Power University, Baoding Hebei 071003, China
    2 Hebei Key Laboratory of Power Internet of Things Technology, North China Electric Power University, Baoding Hebei 071003, China
    3 Engineering Research Center of Intelligent Computing for Complex Energy Systems, Ministry of Education, North China Electric Power University, Baoding Hebei 071003, China
  • Received:2025-07-31 Accepted:2025-10-10 Published:2026-04-30 Online:2026-05-20
  • Contact: ZHAO Zhenbing,E-mail:zhaozhenbing@ncepu.edu.cn
  • Supported by:
    National Natural Science Foundation of China(62571189);National Natural Science Foundation of China(62373151);National Natural Science Foundation of China(62371188);National Natural Science Foundation of China(62303184);Fundamental Research Funds for the Central Universities(2023JC006)

摘要:

变电设备渗漏油的准确分割对于保障电力系统安全运行至关重要。然而,渗漏油与积水的高度视觉相似性、自身形态的不规则性以及此类干扰场景下训练数据的匮乏,对现有分割方法构成了严峻挑战。针对上述问题,提出了一种从数据增强到网络模型优化的综合解决方案。首先,设计了一种新颖的基于扩散模型的时间步自适应调谐方法(EvoTune),通过动态调整U-Net在图像生成过程中的特征贡献,有效扩充了数据集中积水干扰场景的样本数量与多样性。其次,在数据增强的基础上,提出了一种高性能的渗漏油分割网络HyDR-Net。该网络通过判别式边界抗扰模块(DBAIM),增强渗漏油与积水等易混淆背景的特征判别能力,并有效抑制背景噪声;以及多尺度注意力校准模块(MAAM),对渗漏油特征进行多尺度上下文感知和精细化的边界校准,以适应渗漏油不规则的形态。实验结果表明,EvoTune在SSIM,PSNR和NIQE指标上分别达到0.918 8,26.790 2 dB和5.713 3,显著提升了训练数据的质量和积水区域的生成真实感;而HyDR-Net在F1和PA指标上分别达到80.46%和92.15%,在各项关键评价指标上均大幅超越了现有主流分割方法,尤其在复杂积水干扰场景下展现出卓越的分割精度与鲁棒性。为解决特定视觉干扰下的数据稀缺问题提供了有效途径,并为变电设备渗漏油的智能、精准检测提供了强有力的技术支撑。

关键词: 渗漏油分割, 变电设备, 数据增强, 扩散模型, 积水干扰

Abstract:

Accurate segmentation of oil leakage from substation equipment is crucial for ensuring the safe operation of power systems. However, existing segmentation methods face significant challenges due to the high visual similarity between oil leakage and water accumulation, the irregular morphology of oil spills, and the scarcity of training data for such interference scenarios. To address these issues, a comprehensive solution from data augmentation to network-model optimization was proposed. First, a novel diffusion model-based timestep-adaptive tuning method (Evolutionary Tuning, EvoTune) was designed to dynamically adjust the feature contributions of U-Net during image generation, effectively expanding the quantity and diversity of water interference scenarios in the dataset. Second, based on the data augmentation, a high-performance oil leakage segmentation network HyDR-Net (Hydro Discriminative Refining Network) was proposed. The network incorporated a Discriminative Boundary Anti-Interference Module (DBAIM) to enhance feature discrimination between oil leakage and confusing backgrounds such as water accumulation while effectively suppressing background noise, and a Multi-Scale Attentive Alignment Module (MAAM) for multi-scale context-aware processing and fine-grained boundary calibration of oil leakage features to accommodate the irregular morphology of oil spills. Experimental results showed that EvoTune achieved SSIM, PSNR, and NIQE scores of 0.918 8, 26.790 2 dB, and 5.713 3, respectively, significantly improving training-data quality and the realism of generated water-accumulation regions, while HyDR-Net achieved F1 and PA scores of 80.46% and 92.15%, respectively, substantially outperforming existing mainstream segmentation methods across all key evaluation metrics, and particularly exhibiting superior segmentation accuracy and robustness under complex water-interference scenarios. The research provided an effective approach for addressing data scarcity under specific visual-interference conditions and offered robust technical support for intelligent and precise detection of oil leakage in substation equipment.

Key words: oil-leakage segmentation, substation equipment, data augmentation, diffusion models, water-accumulation interference

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