Development of detectability criteria to quantify defects visibility in simulated radiographic images of industrial structures

项目摘要：传统上，通过胶片曝光产生的射线照相图像由训练有素的专家考虑，以在所提供的工业部件的投影中寻找可能的缺陷。关于检查过程的总体模拟，专家对缺陷存在的或多或少的主观判定标准也必须被建模以提供有意义的模拟结果。这项工作的目的是进一步发展现有的可见性标准，并在必要时，寻找一个新的标准，以提高在工业应用中，特别是在核电工业领域的射线检测程序的模拟。

Project Summary: Traditionally, the radiographic images created by exposure of film are considered by trained experts searching for a possible defect in the provided projection of the industrial part. Concerning a total simulation of the inspection procedure, the expert's more or less subjective decision criterion on the presence of a defect has also to be modelled to provide meaningful simulation results. The aim of this work is to further develop existing visibility criteria and, if necessary, to search for a new criterion to improve the simulation of radiographic inspection procedures in industrial applications, especially in the field of the nuclear power industry.