Tomographic Reconstruction of Axially Symmetric Objects from a Single Dynamic Radiograph

Content Provider	Semantic Scholar
Copyright Year	1984
Abstract	I' is possible to reconstruct the cross section of a three-dimensional, axially symmetric object from a single radiograph, as depicted in Fig. 1. This method of analysis has been applied to many problems in many different fields in the past, including several recent applications to static and dynamic testing at Los Alam~s . ' -~ In industrial radiography, where many objects have nearly circular symmetry, such an approach offers significant benefits as an image analysis tool. These benefits include improved delineation of material boundaries, enhanced display of deviations from axial symmetry (defects, for example), and estimation of the radial dependence of the attenuation coefficients of the materials. It is often possible to observe in the reconstruction subtle features of the object that are unobservable in the original radiograph. The improvements brought about by the tomographic method are due to the effective removal of overlying material from the radiograph, which allows the reconstruction to be displayed with an increase in contrast.
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Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article