A De-Convolution Technique used for NDT in X-ray & CT

摘要：

A De-Convolution Technique for the detection and enhancement of image edge-profiles to the sub-pixel accuracy without any trade-off loss has been found. Enhancement within a zoomed space is carried out empirically via sub-pixel transfers and under the spatial bandwidth control of a global Line-Spread-Function that no ambiguity is introduced. Phantom calibrations and field NDT examples in X-ray and CT were used to demonstrate its merits i.e. in both the improved spatial resolution in image and the improved accuracy to the sub-pixel level in measurements. Clearer diagnosis in image and accurate measurements have been achieved by using this methodology, which may lead to the finding of a definitive method used in Quantitative Radiology in NDT. Its key application is in the accurate quantitative assessment or monitoring of fracture(s) or minute defect(s) under any mechanical stress or strain.

关键词： X-ray CT Image Enhancement Deconvolution Technique NDT

作者: Kui M. CHUI Shyr L. CHUI Andrew WRIDE David B. STANFIELD

作者单位: Image Enhancement Technology Ltd, Uxbridge, Middlesex, UK.2 Radiology Department, Worcester Acute Ho Radiology Department, Worcester Acute Hospital NHS Trust, Redditch, UK.

会议类型: 国际会议

会议名称: 第十七届世界无损检测会议(17th World Conference on Nondestructive Testing)

会议地点: 上海

会议语种:英文

页码: 320-329

在线出版日期: 2008-10-25（万方平台首次上网日期，不代表论文的发表时间）