Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Tobias Schoen

Randolf Hanke

Theobald Fuchs

Mahmoud Amr

Martin Vossiek

Andreas Maier

Gisela Anton

Daniel Stromer

Wolfgang Holub

Michel Thilo

Jan Schuer

A method for operating an X-ray system having the steps of 'manually setting the first and a second position for the manipulator on a trajectory by means of a virtual input unit', 'recording or simulating recording from the first and second positions' and &#x201c;representing the two X-ray recordings&#x201d;.

Method for operating an x-ray system

The invention refers to a system for analyzing a document. Each of two measurement arrangements includes two components being a radiation source and a radiation detector, respectively. The two measurement arrangements provide measurement data and differ from each other with regard to a measurement principle, a kind of radiation source, a kind of radiation detector, a kind of relative movement between the document and a component, a kind of relative arrangement of the two components to each other, a kind of emitted radiation, a kind of received radiation or a kind of processing information about radiation emitted by the respective radiation source and/or about radiation received by the respective radiation detector. An evaluator provides data based on the measurement data. The invention also refers to a corresponding method.

System for analyzing a document and corresponding method

A method for calibrating an X-ray system having a radiation source and a radiation detector has the steps of establishing a kinematic model for at least one position, setting starting values, calibrating and solving a system of equations by means of minimizing. The system of equations is set up by the respective established kinematic model of the X-ray system, wherein the system of equations has respective sets of kinematic parameters for each position, and parameters to be calibrated which are usually equal over all the positions. In the step of setting the starting values, the parameters to be calibrated are set and, based on these, in the step of calibrating, at least one recording is taken by means of calibration bodies so that a comparison of the measuring results to respective references results in an error measure. This error measure is minimized when solving the system of equations.

Method and apparatus for calibrating an X-ray system

A multi-dimensional representation of an object is obtained in that first and second pictures of the object illuminated using an X-ray source are created using a sensor that is located, in relation to the X-ray source, behind the object in a preferential direction defined by the relative positions of the object and of the sensor. A distance in the preferential direction between the X-ray source and the object is different in the first picture than in the second picture. The multi-dimensional representation of the object is obtained by combining the first and second pictures.

Apparatus and method for non-rotational computer tomography

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Nuremberg, Germany

Tobias Schoen