Abstract: In order to improve the image quality of X-ray detectors, a method for determining the temperature of a digital X-ray detector with a scintillator and a pixel matrix of photodiodes is provided at least one point of the X-ray detector. According to the method a reverse voltage is applied to at least a first photodiode, the reverse current of the at least first photodiode is measured, and the temperature of the X-ray detector at the first photodiode is determined from the reverse current.

Abstract: The invention relates to a method for presentation of medical images by a reproduction facility of a diagnostic device with suppression of the noise with the following steps: one-off calibration of the signal-dependent noise; separation of the signal and noise components in the image; adaptation of the two components according to set parameters; and composition of the signals.

Abstract: For the comparatively simple and precise correction of an X-ray image (RB) recorded by a digital X-ray detector (3) with comparatively little calibration, at least one gain image (G0,G1,G2) is selected from a plurality of stored gain images (G) for linking to the X-ray image (R) based on at least one parameter (Pi) characterizing the recording conditions of the X-ray image (RB), whereby the gain images (G) are stored such that they differ at least in respect of one parameter (Pi) used for the selection and whereby the selection of the at least one gain image (G0,G1,G2) is made based on the distance (d) between the parameter configuration (g0,g1,g2) of the gain image (G0,G1,G2) and the parameter configuration (p) of the X-ray image (RB) in a parameter space (35) set by the parameters (Pi).

Abstract: For the comparatively simple and precise correction of an X-ray image (RB) recorded by a digital X-ray detector (3) with comparatively little calibration, at least one gain image (G0,G1,G2) is selected from a plurality of stored gain images (G) for linking to the X-ray image (R) based on at least one parameter (Pi) characterizing the recording conditions of the X-ray image (RB), whereby the gain images (G) are stored such that they differ at least in respect of one parameter (Pi) used for the selection and whereby the selection of the at least one gain image (G0,G1,G2) is made based on the distance (d) between the parameter configuration (g0,g1,g2) of the gain image (G0,G1,G2) and the parameter configuration (p) of the X-ray image (RB) in a parameter space (35) set by the parameters (Pi).

Abstract: In an X-ray diagnostic installation and correction method wherein comet artifacts in the unprocessed image can be corrected, a geometrical analysis of the comet artifacts is implemented, an estimated reference value is determined from the original signal using the analysis result, an estimated detail signal is determined from the original signal using the analysis result, and the comet artifacts are corrected on the basis of the estimated reference value and the estimated detail signal.

Abstract: In an X-ray diagnostic installation and correction method wherein comet artifacts in the unprocessed image can be corrected, a geometrical analysis of the comet artifacts is implemented, an estimated reference value is determined from the original signal using the analysis result, an estimated detail signal is determined from the original signal using the analysis result, and the comet artifacts are corrected on the basis of the estimated reference value and the estimated detail signal.