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基于图像连通域的桥梁裂缝提取方法

, PP. 90-93

Keywords: 桥梁工程,桥梁无损检测,桥梁裂缝提取,连通域度量

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Abstract:

裂缝是水泥混凝土桥梁的一种常见病害形式,基于图像的桥梁裂缝病害检测是实现桥梁数字化无损检测的一项新技术。为此,提出了一种基于图像连通域的桥梁裂缝提取方法,以实现从桥梁图像上准确识别裂缝,并提取其特征参数。针对水泥混凝土桥梁图像采集时,施工接缝、光照、污损、抖动等因素造成的干扰,主要分3个步骤实现裂缝目标的提取(1)对所采集的经过去模糊处理的桥梁图像进行特征分析;(2)根据像素灰度对比提取疑似裂缝信息;(3)利用连通域度量去除虚假裂缝,保留真实裂缝信息。通过对大量的桥梁图片进行测试,结果表明,该方法能实现桥梁真实裂缝特征的提取,具有较强的鲁棒性和实用性。

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