| 基于数字图像技术的结构裂缝参数分析 |
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| 引用本文： | 朱耀耀,徐金明,鲁辰达.基于数字图像技术的结构裂缝参数分析[J].混凝土,2008(7). |
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| 作者姓名： | 朱耀耀 徐金明 鲁辰达 |
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| 作者单位： | 1. 上海大学,土木工程系,上海,200072
2. 同济大学,建筑工程系,上海,200092 |
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| 摘 要： | 基于数字图象处理技术,提取并分析了含结构裂缝照片中与裂缝分布有关的数字特征参数.首先考虑拍摄环境条件(如光线强度等),通过对灰度图像设定适当阈值来区分图像中的裂缝与图像背景,获得了相应二值图像;然后结合形态学膨胀与腐蚀技术,消除二值图像中的噪点,使用边缘检测技术提取裂缝的边缘图像;进而得到裂缝的面积、长度、平均宽度、宽度最大值、宽度最小值以及记盒维数等数字特征参数.这一方法为已有建筑物结构裂缝的确认与分析提供了一条新的途径.
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| 关 键 词： | 图像处理 裂缝 分形维数 多元线性回归 |
Analysis of parameters for structural cracks using digital image technique |
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| ZHU Yao-yao,XU Jin-ming,LU Chen-da.Analysis of parameters for structural cracks using digital image technique[J].Concrete,2008(7). |
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| Authors: | ZHU Yao-yao XU Jin-ming LU Chen-da |
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| Affiliation: | ZHU Yao-yao 1,XU Jin-ming 1,LU Chen-da 2(1.Department of Civil Engineering,Shanghai University,Shanghai 200072,China,2.Department of Building Engineering,Tongji University,Shanghai 200092,China) |
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| Abstract: | Based on the technique of digital image processing,the crack digital parameters were obtained from the images with structural cracks.First,considering the requirements(such as light intensity) in taking images,an appropriate threshold was determined to distinguish between cracks and the background in a gray-scale image.Then,an edge-detection method and morphological techniques of dilation and erosion.were used respectively to eliminate noise in the corresponding binary images and to obtain crack boundaries.... |
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| Keywords: | image processing crack fractal dimension multiple linear regression |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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