Carl Zeiss Industrielle Messtechnik Gmbh

Martin Krenkel

Marco Erler

Wolfgang Kimmig

Daniel Weiss

Stratis Tzoumas

A method for correcting nonlinearities of image data of at least one radiograph and a computed tomography device are provided. The method includes obtaining image data of the at least one radiograph by irradiating an object with polychromatic invasive radiation and by detecting attenuated radiation that has passed through the object, utilizing a plurality of correction functions for correction purposes, said correction functions each being determined by the parameter value of at least one correction parameter, and applying an ascertainment method to ascertain the parameter value or the parameter values of the correction function used for correction purposes, said ascertainment method being determined by the parameter value of an ascertainment parameter or the parameter value sets of a plurality of ascertainment parameters.

Method for correcting nonlinearities of image data of at least one radiograph, and computed tomography device

An x-ray examination arrangement includes an x-ray radiation source arranged at a source position, at least two x-ray detectors having active detector areas and being arranged such that the active detector areas capture different solid angle ranges with respect to x-ray radiation produced by the x-ray radiation source and emanating from the source position, and a control device configured to calculate a projection onto a virtual detector plane based on radiographs respectively captured by the at least two x-ray detectors and spatial poses of the at least two x-ray detectors relative to the source position, and provide a combined radiograph for the virtual detector plane based on the projection. In addition, a method for operating the x-ray examination arrangement and a computed tomography device are provided.

X-ray examination arrangement and method for operating an x-ray examination arrangement

A variable stop apparatus for arrangement between an X-ray source and an object to be measured in a CT-scanner and a CT-scanner including the variable stop apparatus are provided. The variable stop apparatus includes a stop carrier that is pivotable about a pivot axis. The stop carrier has at least two stops. The at least two stops are in each case configured to be brought into a predetermined angular position by pivoting the stop carrier. The at least two stops are arranged at different longitudinal positions with respect to a longitudinal direction that is defined by the pivot axis.

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Aalen, Germany

Martin Krenkel