Method for recording an x-ray image, x-ray detector and x-ray system
OwnerOliver Baruth, Philipp Bernhardtinventors
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OwnerOliver Baruth, Philipp Bernhardtinventors
Estimating the term…
To obtain a high-quality X-ray image from X-ray detectors with defective pixels, an X-ray image of an object is recorded by an active pixel matrix of an X-ray detector from at least two partial X-ray images, in which a first partial image is recorded from picture elements in a first position and at least one second partial image is recorded from picture elements in a second position of the pixel matrix, wherein the pixel matrix has at least one defective pixel at a defect site and the positions are selected such that the active pixel matrix is situated in the same plane in all positions, each displacement of the active pixel matrix from one into another position is an integer multiple of a pixel length, and at least one non-defective pixel is positioned in at least one other position at the respective defect sites of all positions.
A method for recording an X-ray image of an object by means of an active pixel matrix of an X-ray detector from at least two partial X-ray images, the method comprising:
An X-ray detector having an active pixel matrix with at least one defective pixel and having an apparatus for displacing the active pixel matrix, which X-ray detector is designed to displace the active pixel matrix in the plane thereof by a predetermined displacement by means of the displacement apparatus.
An X-ray system comprising an active pixel matrix with at least one defective pixel and having an apparatus for displacing the active pixel matrix, which X-ray detector is designed to displace the active pixel matrix in the plane thereof by a predetermined displacement by means of the displacement apparatus and an X-ray source for applying X-ray radiation, a control unit for actuating the recording of partial X-ray images and for actuating a displacement of the active pixel matrix, and an image processing unit for superposing and processing the partial X-ray images to form an X-ray image, wherein the X-ray system is operable to
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