Fast Flaw Contour Recognition Algorithm in Online Plate Ultrasonic Testing

摘要：

Flaw contour recognition is very important to heavy Plate Ultrasonic Testing (PUT) which is used to classify the plates used for ships, pressure vessels and nuclear power plants. The state-of-the-art contour recognition algorithm is too slow or inexact to be used in field. A Fast Flaw Contour Recognition (FFCR) algorithm is developed which is a hybrid of Convex Hull (CH) and Edge Detection (ED). This paper focuses on how to combine CH and ED to describe planar concave flaw contour and to recongize the flaw local outline quickly and exactly.

关键词： Contour Recognition Convez Hull Edge Detection Ultrasonic Testing

作者: Dayong Guo Bowei Zhang Kailiang Que Bin Chen Guang He

作者单位: Dept.of Mechanical Engineering,Tsinghua University,No.1 Qinghuayuan,Haidian District,100084,Beijing,China

会议类型: 国际会议

会议名称: 2009 The 18th IEEE International Symposium on Applications of Ferroelectrics(2009年国际铁电学暨IEEE国际铁电应用联合会议)

会议地点: 西安

会议语种:英文

页码: 33-36

在线出版日期: 2009-08-23（万方平台首次上网日期，不代表论文的发表时间）