Journal of Computer Applications ›› 2025, Vol. 45 ›› Issue (7): 2361-2368.DOI: 10.11772/j.issn.1001-9081.2024070959

• Multimedia computing and computer simulation • Previous Articles     Next Articles

Robustness optimization method of visual model for intelligent inspection

Zhenzhou WANG1, Fangfang GUO1, Jingfang SU1(), He SU2, Jianchao WANG1   

  1. 1.School of Information Science and Engineering,Hebei University of Science and Technology,Shijiazhuang Hebei 050018,China
    2.School of Electrical Engineering,Hebei University of Technology,Tianjin 300130,China
  • Received:2024-07-09 Revised:2024-09-29 Accepted:2024-10-09 Online:2025-07-10 Published:2025-07-10
  • Contact: Jingfang SU
  • About author:WANG Zhenzhou, born in 1978, Ph. D., professor. His research interests include image processing, pattern recognition.
    GUO Fangfang, born in 2000, M. S. candidate. Her research interests include computer vision, image processing.
    SU Jingfang, born in 1980, Ph. D., lecturer. Her research interests include computer vision, robotics.
    SU He, born in 1993, Ph. D. candidate. His research interests include analysis and control of power system, reliability theory and application of electrical equipment.
    WANG Jianchao, born in 1990, Ph. D., lecturer. His research interests include deep learning, artificial intelligence, intelligent information processing.
  • Supported by:
    Science and Technology Research Project of Colleges and Universities in Hebei Province(QN2023185)

面向智能巡检的视觉模型鲁棒性优化方法

王震洲1, 郭方方1, 宿景芳1(), 苏鹤2, 王建超1   

  1. 1.河北科技大学 信息科学与工程学院,石家庄 050018
    2.河北工业大学 电气工程学院,天津 300130
  • 通讯作者: 宿景芳
  • 作者简介:王震洲(1978—),男,河北石家庄人,教授,博士,主要研究方向:图像处理、模式识别
    郭方方(2000—),女,河南安阳人,硕士研究生,主要研究方向:计算机视觉、图像处理
    宿景芳(1980—),女,河北石家庄人,讲师,博士,主要研究方向:计算机视觉、机器人 sujingfang1980@hebust.edu.cn
    苏鹤(1993—),男,河北衡水人,博士研究生,主要研究方向:电力系统分析与控制、电工装备可靠性理论及应用
    王建超(1990—),男,河北石家庄人,讲师,博士,主要研究方向:深度学习、人工智能、智能信息处理。
  • 基金资助:
    河北省高等学校科学技术研究项目(QN2023185)

Abstract:

The vision task of intelligent inspection of transmission lines is crucial to safety and stability of the power system. Although deep learning networks perform well on uniformly distributed training and test datasets, deviations in data distribution often degrade model performance in real-world applications. To solve this problem, a Training Method based on Contrastive Learning (TMCL) was proposed, aiming to enhance robustness of the model. Firstly, a benchmark test set, TLD-C (Transmission Line Dataset-Corruption), specially designed for transmission line scenario was constructed to evaluate the model’s robustness facing image corruption. Secondly, the model’s ability to distinguish different categories of features was improved by constructing positive and negative sample pairs that are sensitive to category features. Thirdly, a joint optimization strategy combining contrastive loss and cross-entropy loss was used to impose additional constraints on the feature extraction process, so as to optimize representation of the feature vectors. Finally, a Non-local Feature Denoising network (NFD) was introduced to extract features closely related to categories. Experimental results show that compared to the original method, the improved training method achieves an average precision improved by 3.40 percentage points on Transmission Line Dataset (TLD), and a relative Corruption Precision (rCP) increased by 4.69 percentage points on TLD-C dataset.

Key words: intelligent inspection, deep learning, robustness, contrastive learning, training method

摘要:

输电线路的智能巡检视觉任务对电力系统的安全稳定至关重要。尽管深度学习网络在分布一致的训练和测试数据集上表现良好,但实际应用中数据分布的偏差常常会降低模型性能。为了解决这一问题,提出一种基于对比学习的训练方法(TMCL),旨在增强模型鲁棒性。首先,构建专为输电线路场景设计的基准测试集TLD-C (Transmission Line Dataset-Corruption)用于评估模型在面对图像损坏时的鲁棒性;其次,通过构建对类别特征敏感的正负样本对,提升模型对不同类别特征的区分能力;然后,使用结合对比损失和交叉熵损失的联合优化策略对特征提取过程施加额外约束,以优化特征向量的表征;最后,引入非局部特征去噪网络(NFD)用于提取与类别密切相关的特征。实验结果表明,模型改进后的训练方法在输电线路数据集(TLD)上的平均精度比原始方法高出3.40个百分点,在TLD-C数据集上的相对损坏精度(rCP)比原始方法高出4.69个百分点。

关键词: 智能巡检, 深度学习, 鲁棒性, 对比学习, 训练方法

CLC Number: