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

Charité – Universitätsmedizin Berlin

Naviswiss Ag

Sicat Gmbh & Co. Kg

Charité - Universitätsmedizin

Erwin Keeve

Eckart Uhlmann

Bruno Knobel

Joachim Hey

Charles Findeisen

Marc Käseberg

Nils Hanssen

Fabian Stopp

Frank Bartl

Christoph Hämmerle

Lutz Ritter

Karl-Heinz Widmer

Felix Fehlhaber

Sebastian Engel

Christoph Haemmerle

Gerhard ZÜNDORF

Marc LIÉVIN

A method, device, and computer program product for capturing projection images of an object are provided. An x-ray beam source is moved by a control unit on a path into a plurality of positions, in which an x-ray beam is transmitted. An x-ray beam detector is moved by the control unit into a plurality of positions, in which the x-ray beam, penetrating the object, is detected. The x-ray beam source and/or the x-ray beam detector are moved on a calculated path around the object, at a constant distance between the x-ray beam source and the x-ray beam detector or the object. The path is described by an nth degree polynomial and determined by the control unit through an optimization of a path along the central x-ray beam. The polynomial is selected such that a safety clearance with respect to the object is maintained and a distance between the x-ray beam detector and the object is minimized.

Method, device, and computer program product for capturing projection images with optimized movement path

The present invention relates to an X-ray system and method for generating 3D image data. The X-ray system comprises a radiation detector, a movable X-ray tube assembly and a control unit, wherein in a working state of the system the radiation detector is detachably positioned in a spatially fixed manner and the X-ray tube assembly can be moved into relative positions relative to the radiation detector. Projection images recorded in the relative positions can be processed together with the coordinates of the relative positions using an iterative reconstruction technique or other image processing methods so as to obtain 3D X-ray images. The X-ray tube assembly is attached to a motor-driven movable stand arm and can be displaced using a control unit. The stand base of the movable stand can be positioned in a spatially fixed manner, so that it has a defined fixed position relative to the radiation detector.

X-ray system and method for generating 3D image data

In order to develop known tracking systems, in particular in the medical field, the invention proposes a device for the contactless determination and measurement of a spatial position and/or spatial orientation of bodies using a tracking system, by means of which the bodies are located and brought into relation with one another, the tracking system, or at least components or modules thereof, being mobile.

System and method for the contactless determination and measurement of a spatial position and/or a spatial orientation of bodies, method for the calibration and testing, in particular, medical tools as well as patterns or structures on, in particular, medical tools

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Potsdam, Germany

Erwin Keeve