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AssigneeGE Sensing & Inspection Technologies GmbH
InventorsAlexander Suppes, Pavel Pokutnev, Eberhard Neuser, Nils Rothe
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A method and system for determining geometric imaging properties of a flat panel detector in an x-ray inspection system are described herein. The method can include arranging a calibration phantom between an x-ray source and the flat panel detector, the calibration phantom including at least one discrete geometric object. Additionally, the method can include recording at least one x-ray image of the calibration phantom with the flat panel detector. At least one discrete geometric shape is generated in the x-ray image by imaging the at least one discrete geometric object of the calibration phantom. Further, the method can include determining a location-dependent distortion error of the flat panel detector from the at least one x-ray image on the basis of at least one characteristic of the at least one discrete geometric shape. All characteristics of the at least one discrete geometric shape used for determining the location-dependent distortion error are independent of the dimensions of the calibration phantom.
A method for determining geometric imaging properties of a flat panel detector in an x-ray inspection system, the method comprising:
An X-ray inspection system comprising an x-ray source, a flat panel detector, a calibration phantom comprising at least one discrete geometric object, and an electronic data processing device, wherein the x-ray inspection system is adapted to record at least one x-ray image of the calibration phantom placed between the x-ray source and the flat panel detector, at least one discrete geometric shape is generated in the x-ray image by imaging the at least one discrete geometric object of the calibration phantom, the data processing device is adapted to determine a location-dependent distortion error of the flat panel detector from the at least one x-ray image on the basis of at least one characteristic of the discrete geometric shape, all of the at least one characteristics of the at least one discrete geometric shape used for determining the location-dependent distortion error are independent of the dimensions of the calibration phantom or of exactly knowing the dimensions of the calibration phantom.
A calibration phantom for determining geometric imaging properties of a flat panel detector in an x-ray inspection system, comprising a cylindrical tube and a row of uniform geometric objects arranged in the cylindrical tube, wherein the row of uniform geometric objects are not connected with each other and/or are arranged to contact each other.
Dependencies are inferred from the claim text.