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基于模型匹配的结构光视觉焊接接头定位 被引量:1

Welded joint localization based on model matching with structured-light vision sensing
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摘要 提出一种基于模型的焊缝特征位置提取与识别方法.通过定义简单的参数化焊接接头模型,使用部分豪斯多夫距离(PHD)作为相似性度量准则,利用迭代匹配的方法使得焊接接头模型快速地逼近实际焊接接头的位姿.为了保证方法的可靠性与实时性,利用统计分析的方法设置相关的匹配参数,并通过将位姿参数空间定义在结构光平面而实现了参数空间的降维.实验结果表明,该方法在满足实时性的条件下保证了最后结果的精确性,满足实际应用的要求. A model-based matching method is proposed for welded joint localization and recognition.Simple parameterized joint models are defined,which approach the actual joint pose fast in a iterative style by using the partial Hausdorff distance(PHD) as the similarity measurement.Statistical analysis is employed to determine the matching parameters adaptively,and the dimension of parameter space is decreased by performing the estimation on the structured light plane,which make a robust and real-time performance.Expe...
出处 《华中科技大学学报(自然科学版)》 EI CAS CSCD 北大核心 2008年第S1期76-79,共4页 Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金 江苏省科技成果转化项目(BA2007058)
关键词 计算机视觉 迭代匹配 接头 模型匹配 部分豪斯多夫距离 结构光 computer vision iterative matching joints(structural components) model matching partial Hausdorff distance structuredlight
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