基于超声波断层图像的三维重构方法  

A 3D reconstruction method based on ultrasonic tomography

作　　者：马世博[1,2] 刘宏伟 迟永波 王奕博 张昭 MA Shi-bo;LIU Hong-wei;CHI Yong-bo;WANG Yi-bo;ZHANG Zhao(School of Materials Science and Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China;Key Laboratory for Material Near Net Forming of Hebei Province,Hebei University of Science and Technology,Shijiazhuang 050018,China;Shanghai Xinfumei Gearbox Technical Service Co.Ltd.,Shanghai 201100,China;Hebei Beijing-Tianjin-Hebei Region Remanufacturing Industrial Technology Research Co.Ltd.,Cangzhou 062455,China)

机构地区：[1]河北科技大学材料科学与工程学院,石家庄050018 [2]河北科技大学河北省材料近净成形重点实验室,石家庄050018 [3]上海新孚美变速箱技术服务有限公司,上海201100 [4]河北京津冀再制造产业技术研究有限公司,河北沧州062455

出　　处：《沈阳工业大学学报》2023年第1期71-77,共7页Journal of Shenyang University of Technology

基　　金：国家重点研发计划项目(2019YFC1904404)。

摘　　要：为降低检测成本,减少辐射危害,提出了基于超声波断层图像进行典型零件的三维重构方法.设计了相共振结合拉东反变换计算方法的零件断层扫描试验,基于Matlab平台构建了轮廓提取算法、图像堆叠算法以及三维模型重构算法.结合图像处理算法与三维模型重构算法实现了二维超声断层图像的三维重构,重构的零件外形尺寸与内部形位误差约为1 mm.结果表明,本文提出的超声波断层图像三维重构方法可靠、准确,可用于典型金属零件轮廓及内部缺陷的无损检测与三维重构.In order to reduce detection cost and decrease radiation hazards,a three-dimensional reconstruction method based on ultrasonic tomographic image for typical parts was proposed.The component fracture scanning experiment based on phase resonance and Radon inverse transform calculation method was designed,and the contour extraction algorithm,the image stacking algorithm and the 3D model reconstruction algorithm were constructed on Matlab platform.The 3D reconstruction of 2D ultrasonic fault image was realized by combining image processing algorithm with 3D model reconstruction algorithm,and the error between the external dimension of reconstructed part and that of the internal shape and position was about 1 mm.The results show that the as-proposed 3D reconstruction method of ultrasonic tomographic image is reliable and accurate,and it can be used for non-destructive testing and 3D reconstruction of the contour and internal defects of typical metal parts.

关 键 词：无损检测 工业计算机断层扫描技术 超声计算机断层扫描技术 二维图像处理 三维重构 自适应中值滤波 轮廓提取 移动立方体算法 

分 类 号：TG115.28[金属学及工艺—物理冶金]