Research Group Computed Tomography

In recent years the methodologies of metrology and dimensional measurement were expanded by introducing the novel technology of industrial 3D X-ray computed tomography (3DCT). 3DCT is an established method for visualization and for non-destructive-testing (NDT) of industrial components and has recently gained importance in the area of dimensional measurement for industrial components. 3DCT provides full geometric information of a specimen including inner or hidden structures. A single scan non-destructively characterizes a specimen and detects material defects and geometrical irregularities of the manufacturing process. Furthermore, the typical limitations of tactile and optical coordinate measurement technology can be avoided (e.g., problems with deformable surfaces, reflecting glass probes).

Since its foundation in 2005 software development has been of great importance for of the research group computed tomography of the Upper Austria University of Applied Sciences - Wels Campus. The major aim in CT software development was and still is to develop non standard and highly innovative aglorithms for novel application areas of our project partners. In this context four applications were developed: SimCT is a fast GPU based simulator of a 3DCT device. Analyse_This! allows the evaluation of laser shots in a carbon matrix. nfinity facilitates data fusion of dual energy CT datasets as well as statistical analysis. Finally a comprehensive, plattform independent framework, integrating all former developments was designed to be the basis for all further implementations of the research group computed tomography: iAnalyse.

Using visualization, 3DCT datasets may be displayed in unique and undreamed-of way for transporting information. E.g., transferfunctions allow to stress details of a specimen while keeping the hull semitransparent inorder to visualize specific details in the context of the compete dataset. Application areas of this domain can be found in: Analysis of inner and outer structure (e.g., teeth, bones, etc.), finite element analysis using surface models generated by 3DCT data (e.g., design and insertion of implants), 3D rapid prototyping (e.g., model design, desing of implants, pre operative planning).