A New Industrial CT Algorithm on Directly Reconstructing he Characteristics of the Objects

摘要：

In the industrial X-Ray CT detection system, owing to the restrictions of dispersion, the traditional CT methods result in higher noise and lower resolution of the reconstructed image, and cannot be used to detect tiny flaws. Relying on the internal structure of the detected object, and using the trait of wavelet functions before and after RADON transform, the authors put forward a new algorithm which utilities the pre-filtering of the projected data to directly reconstruct the character part of the detected objects. The practical results show that the algorithm can distinguish smaller flaws in the inner of the object, less sacrifice the resolution of the backgruoud image, and effectively improve the resolution of detection.

关键词： industrial CT characteristic reconstruction RADON transform wavelet transform

作者: Liming Wang Ying-liang Zhao Yan Han

作者单位: National Key Laboratory For Electronic Measurement Technology, North University of China, Taiyuan 030051, China

会议类型: 国际会议

会议名称: 第七届国际测试技术研讨会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-05（万方平台首次上网日期，不代表论文的发表时间）