Fast Radon transforms for high-precision EBSD orientation determination using PyEBSDIndex
David J. Rowenhorst,
Patrick G. Callahan,
Håkon W. Ånes
Abstract:The automated indexing and orientation determination of backscattered Kikuchi patterns is an essential step in electron backscattered diffraction (EBSD) analysis. Here a new Radon-transform-based algorithm is developed within the software package PyEBSDIndex, which features a number of key improvements over what has been traditionally available. The Radon convolutions use derivatives of Gaussian kernels that more closely match EBSD band profiles, which is combined with sub-pixel localization of the peaks in th… Show more
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