摘要:
A method and apparatus for determining an x-ray image data record of a target location subjected to a movement using an x-ray device. A number of basic images of the target location are recorded using a basic exposure time in each case and the x-ray image data record corresponding to an x-ray image with a longer exposure time is determined by combining basic images registered with one another. At least one quality value assigned hereto and relating to the movement in the target location during the recording is determined for each basic image and the contribution of a basic image to the x-ray image data record is determined as a function of the quality value.
摘要:
A method and apparatus for determining an x-ray image data record of a target location subjected to a movement using an x-ray device. A number of basic images of the target location are recorded using a basic exposure time in each case and the x-ray image data record corresponding to an x-ray image with a longer exposure time is determined by combining basic images registered with one another. At least one quality value assigned hereto and relating to the movement in the target location during the recording is determined for each basic image and the contribution of a basic image to the x-ray image data record is determined as a function of the quality value.
摘要:
To improve the quality of x-ray images, IN a method to process an x-ray image, a mathematical correction of the x-ray image is implemented, wherein the correction at least partially removes from the x-ray image the locally dependent blurring caused by a projection direction-dependent, effective optical focus size of an x-ray tube used to acquire the x-ray image.
摘要:
To improve the quality of x-ray images, IN a method to process an x-ray image, a mathematical correction of the x-ray image is implemented, wherein the correction at least partially removes from the x-ray image the locally dependent blurring caused by a projection direction-dependent, effective optical focus size of an x-ray tube used to acquire the x-ray image.
摘要:
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.
摘要:
A method is provided for operating a medical imaging X-ray device. The method records an earlier individual image of a series of images of a patient using a recording facility. The location of a medical component is identified, and the medical component is localized in the earlier individual image using a computing facility. A subregion of the earlier individual image is specified, determined by the position of the medical component localized in the earlier individual image and with the localized medical component represented. A later individual image is recorded and the medical component is localized in the later individual image. The later individual image is displayed, the later individual image averaged exclusively region-specifically in the region of the medical component with the subregion of the earlier individual image. Method acts are repeated with the displayed individual image as the earlier individual image to enhance visibility of the medical component.
摘要:
A method is provided for operating a medical imaging X-ray device. The method records an earlier individual image of a series of images of a patient using a recording facility. The location of a medical component is identified, and the medical component is localized in the earlier individual image using a computing facility. A subregion of the earlier individual image is specified, determined by the position of the medical component localized in the earlier individual image and with the localized medical component represented. A later individual image is recorded and the medical component is localized in the later individual image. The later individual image is displayed, the later individual image averaged exclusively region-specifically in the region of the medical component with the subregion of the earlier individual image. Method acts are repeated with the displayed individual image as the earlier individual image to enhance visibility of the medical component.