基于二维主成分分析算法的混凝土裂缝检测研究
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中铁十四局集团房桥有限公司

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国家重点研发计划(2018AA0103004)、天津市科技计划重大专项(20YFZCGX00550)资助项目和中铁十四局集团有限公司A类课题(913700001630559891202305)资助项目


Research on Crack Detection of Concrete Based on Two-dimensional Principal Component Analysis Algorithm
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China Railway 14th Bureau Group Fangqiao Co., Ltd

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    摘要:

    针对盾构管片混凝土的裂缝检测任务,提出一种基于L1范数和F范数的二维主成分分析算法。考虑到实际工程中,解决异常值的干扰问题更为重要,因此采用L1范数度量来削弱特征提取算法对异常值的敏感性。同时,采用F范数的度量来降低算法的重构误差,以增强重构性进而帮助更好的裂缝标记。最后,对混凝土裂缝图像进行测试,结果表明:所提算法对盾构管片的混凝土裂缝检测具有较好的识别和标记效果,识别率最高可达90.42%。此外,通过对不同实验条件的混凝土裂缝进行检测,结果表明所提算法具有较强的抗噪能力。最后,将该算法应用在人脸识别领域,实验结果表明所提算法仍具有较强鲁棒性与实际应用性。总之,采用二维主成分分析相关算法的策略对混凝土裂缝检测具有良好的适用性,未来仍可持续探索新的相关改进算法。

    Abstract:

    A two-dimensional principal component analysis algorithm based on the L1-norm and the F-norm is proposed for the detection of concrete cracks in shield tunnel segments. In light of the fact that the resolution of the issue of outliers is of greater consequence in the context of practical engineering, the L1-norm metric is employed to attenuate the sensitivity of feature extraction algorithms to outliers. Concurrently, the F-norm metric is employed to diminish the reconstruction error of the algorithm, augment its reconfigurability, and facilitate more accurate crack labelling. Subsequently, the efficacy of the proposed algorithm was evaluated through tests on concrete crack images. The results demonstrated that the algorithm exhibited commendable recognition and labeling capabilities, achieving a recognition rate of up to 90.42%. Furthermore, an analysis of concrete crack detection under varied experimental conditions was conducted, with the results indicating the efficacy of the proposed algorithm in mitigating noise. Finally, the algorithm is applied in the field of face recognition, and the experimental results show that the proposed algorithm still has strong robustness and practical applicability. In summary, this evidence substantiates the assertion that the strategy of employing two-dimensional principal component analysis-related algorithms is a promising avenue for concrete crack detection. Moreover, it paves the way for future research endeavors aimed at further refining and enhancing these algorithms.

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  • 收稿日期:2024-09-23
  • 最后修改日期:2025-02-20
  • 录用日期:2025-02-21
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