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Method for processing radiographic image data for detection of a weld defect

机译：处理用于检测焊接缺陷的放射线图像数据的方法

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A radiographic test for a welded portion of a pipe provides an image of the welded portion including a weld defect image. It is introduced into a computer, noises are removed, a region of inspection is sampled, and the welding line portion is extracted (2, 3). The defect image is emphasized. An extraction process implements an automatic judgement of the defects. Based on statistic values pixels at the end of the welding line and the peripheral portion of defect emphasized image are modified to be consistent with the result of detection by the inspector. The knowledge of an inspector about irrelevant indications is formed as a database. Feature values of defects are compared with the database, for removing irrelevant indications. Feature values of images formed as one knowledge base (A, B, C), and the knowledge of an inspector formed into another knowledge base (D, E) are formed into certain rules, the image of a welded object is collated with these rules and the type of defect is inferred. IMAGE
机译：对管道的焊接部分的射线照相测试提供了包括焊接缺陷图像的焊接部分的图像。将其引入计算机，消除噪音，对检查区域进行采样，并提取焊接线部分（2、3）。缺陷图像被强调。提取过程将对缺陷进行自动判断。基于统计值，将焊接线末端的像素和缺陷强调图像的外围部分修改为与检查员的检测结果一致。检查员关于无关指示的知识被形成为数据库。将缺陷的特征值与数据库进行比较，以删除不相关的指示。形成为一个知识库（A，B，C）的图像的特征值，以及形成为另一个知识库（D，E）的检查员的知识，形成某些规则，将焊接对象的图像与这些规则进行比较并推断出缺陷的类型。 <图像>

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