Intensity Correction and Dynamic Range Expansion for Digital X-Ray Radiograph Images
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Begun in 1973, the Review of Progress in Quantitative Nondestructive Evaluation (QNDE) is the premier international NDE meeting designed to provide an interface between research and early engineering through the presentation of current ideas and results focused on facilitating a rapid transfer to engineering development.
This site provides free, public access to papers presented at the annual QNDE conference between 1983 and 1999, and abstracts for papers presented at the conference since 2001.
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Abstract
Quantitative and qualitative analysis of NDE radiograph film is often accomplished using image processing tools. A prerequisite for such analysis is transformation of the data contained in the physical x-ray film into discrete numerical data suitable for image processing. Such transformation, called image acquisition or digitization, will introduce noise and spurious information (artifacts) into the original data. While certain qualitative data enhancement processes are tolerant of these data anomalies, significant errors may preclude quantitative analysis such as flaw sizing or flaw detection.