测绘通报 ›› 2025, Vol. 0 ›› Issue (10): 50-56.doi: 10.13474/j.cnki.11-2246.2025.1009

• 学术研究 • 上一篇    

融合多源图像数据的闸墩表面裂缝定量识别方法

喻峰1, 汪进超2,3, 覃拓1, 谭滔宇1, 魏晓翔1, 刘厚成2   

  1. 1. 中国长江电力股份有限公司, 湖北 宜昌 443002;
    2. 中国科学院武汉岩土力学研究所, 湖北 武汉 430071;
    3. 岩土力学与工程安全全国重点实验室, 湖北 武汉 430071
  • 收稿日期:2025-02-25 发布日期:2025-10-31
  • 通讯作者: 汪进超。E-mail:jcwang@whrsm.ac.cn
  • 作者简介:喻峰(1993-),男,高级工程师,主要从事大坝安全维护管理工作。E-mail:yu_feng@ctg.com.cn
  • 基金资助:
    中国长江电力股份有限公司科研项目(Z222302029);湖北省重点研发计划(2023BAB099)

Quantitative identification method for surface cracks of gate piers by integrating multi-source image data

YU Feng1, WANG Jinchao2,3, QIN Tuo1, TAN Taoyu1, WEI Xiaoxiang1, LIU Houcheng2   

  1. 1. China Yangtze Power Co., Ltd., Yichang 443002, China;
    2. Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China;
    3. State Key Laboratory of Geomechanics and Geotechnical Engineering Safety, Wuhan 430071, China
  • Received:2025-02-25 Published:2025-10-31

摘要: 在闸墩等大型结构物的安全运维中,其表面的裂缝信息对整体结构的健康评估具有重要意义。针对闸墩等大型结构物安全维护中飞行空间狭小且无法设置靶标的闸墩表面裂缝快速精准测量难题,本文提出了融合多源图像数据的闸墩表面裂缝定量识别方法,以提高闸墩表面裂缝基于图像测量方法的准确性和可靠性。首先,在传统可见光与热红外图像的基础上,融合距离矩阵的图像数据,形成基于特征局部区域与互信息相结合的图像配准方法,以实现包含多重纹理信息的融合图像获取;然后,在构建能够有效区分裂缝区域和非裂缝区域的表面裂缝识别方法的基础上,叠加距离矩阵图像信息,实现裂缝表面融合图像的像素点空间位置定量化;最后,结合识别裂缝区域的形态信息,形成闸墩表面裂缝的特征参数识别方法,并结合案例分析,验证本文方法的准确性和可靠性。试验结果表明,本文为闸墩巡检与健康诊断提供了一种融合多源图像数据的闸墩表面裂缝定量识别新方法,能够为闸墩结构的健康诊断提供数据支撑,具有广阔的应用前景。

关键词: 闸墩健康, 多源数据, 图像融合, 像素空间化, 裂缝测量

Abstract: In the safe operation and maintenance of large structures such as gate piers, the information on surface cracks is of great significance for the overall health assessment of the structure.In response to the problem of rapid and accurate measurement of surface cracks on large structures such as piers that cannot be targeted for safety maintenance, this paper proposes a quantitative identification method for surface cracks of gate piers by integrating multi-source image data to improve the accuracy and reliability of image-based measurement methods.Firstly, based on traditional visible light and thermal infrared images, the image data of the distance matrix is fused to form an image registration method that combines local feature regions with mutual information to achieve fused image acquisition containing multiple texture information.Subsequently, based on the construction of a surface crack recognition method that can effectively distinguish between crack areas and non crack areas, the distance matrix image information is overlaid to achieve the quantification of pixel spatial positions in the fused image of crack surfaces; Finally, by combining the morphological information of the identified crack area, a feature parameter measurement method for the surface cracks of the pier was formed.The accuracy and reliability of this method were verified through case analysis.The results show that this paper provides a new method for measuring the surface cracks of the pier based on multi-source image fusion, which can provide data support for the health diagnosis of the pier structure and has broad application prospects.

Key words: sluice pier health, multi-source data, image fusion, pixel spatialization, crack measurement

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