3D analysis of CT data by Morpho
Loes Brabant, Jelle Vlassenbroeck, Veerle Cnudde, Yoni De Witte, Luc Van Hoorebeke, Patric Jacobs · Ghent University Academic Bibliography (Ghent University) · 2010
At the Centre for X-ray Tomography of the Ghent University (Belgium) (www.ugct.ugent.be),a lot of progress is being made in hardware development for high-resolution X-ray CT scanners, as well as in the field of software for data reconstruction and 3D analysis.We present the latest developments in the in-house developed package Morpho+, a flexible 3D analysis software program which provides several structural 3D parameters of a scanned sample.Morpho+ is able to calculate several geometrical parameters for both a complete sample as for specific components of a sample, such as grains or pores.These parameters include the surface, diameter of the maximum inscribed sphere, diameter of the minimum circumscribed sphere, equivalent diameter, orientation and a measure for the sphericity (shape parameter).In addition, total sample porosity (or volume fraction) and partial porosity (radial and longitudinal) can be determined.To measure the connectivity of the sample, a skeletonization algorithm and calculation of parameters such as the Euler Number and the size of bottlenecks of a network are included in the program.Morpho+ produces a quantitative output, but it is also possible to visualize the different steps of the analysis, enabling easy interpretation of the results.For example different elements in a 3D volume can be colour-labelled based on their size.Furthermore, the surfaces of the analysed components can be saved as an STL-file for easy visualisation or further analysis.