公开(公告)号：EP2847620A2

公开(公告)日：2015-03-18

申请号：EP13727527.7

申请日：2013-05-07

申请人： Werth Messtechnik GmbH ,  Friedrich-Alexander-Universität Erlangen-Nürnberg

发明人： KACHELRIESS, Marc ,  BAER, Matthias ,  SCHMIDT, Ingomar ,  HAMMER, Michael ,  CHRISTOPH, Ralf ,  SCHUBERT, Tristan ,  RAUH, Wolfgang

IPC分类号： G01T1/29 ,  G06T11/00

CPC分类号： G01T1/2985 ,  G06T11/005 ,  G06T2211/416

摘要： The invention relates to a computer tomography method for dimensionally determining features of a measurement object, through which a radiation is passed in several rotational positions, wherein measurement deviations due to the scattered radiation or other physical effects are corrected. In order to avoid or correct measurement deviations in particular due to scattered radiation or due to other physical effects such as beam hardening, afterglow effects, or the like, it is proposed, for example, that the radiographs are corrected by means of synthetic radiographs, calculated from a geometry that is determined in advance or know or from a model of the geometry, wherein the geometry or the model of the geometry at least roughly corresponds to the measurement object.

摘要翻译： 本发明涉及一种用于测量对象，通过它辐射在若干旋转位置传递的维确定性采矿特征的计算机断层摄影方法，worin测量偏差由于散射辐射或其他物理效应进行校正。 为了避免或特别是由于散射的辐射或正确的测量偏差是由于其他物理效应：如射束硬化，余辉效应，或类似物，它被提出，例如，DASS模具射线照片通过合成X光片的方式校正， 从几何计算没有被预先确定的开采或知道或从几何形状的模型中，worin的几何形状或几何形状的模型中的至少大致对应于所述检测对象。