Methods and systems for digital mammography imaging
AssigneeGE Precision Healthcare LLC
InventorsPablo Milioni De Carvalho, Barbara Grosjean Leh, Jorge Corsino Espino, Vincent Jonas Bismuth
Life of this patent
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Abstract
Various methods and systems are provided for reducing blur in a diagnostic image. In one example, a method includes reducing blur in a diagnostic image by applying a deconvolution filter to the diagnostic image, the deconvolution filter generated from a point spread function (PSF) estimation of blur at each pixel of the diagnostic image, the PSF estimation generated based on a motion vector field between the diagnostic image and a pre-shot image acquired prior to the diagnostic image.
Claims16
A method, comprising:
- reducing blur in a diagnostic image by applying a deconvolution filter to the diagnostic image, the deconvolution filter generated from a point spread function (PSF) estimation of blur at each pixel of the diagnostic image, the PSF estimation generated based on a motion vector field between the diagnostic image and a pre-shot image acquired prior to the diagnostic image.
A method, comprising:
- acquiring, with an x-ray imaging system, a pre-shot image of a patient and a diagnostic image of the patient;
- generating a motion vector field by registering the diagnostic image to the pre-shot image;
- applying a deconvolution filter to the diagnostic image to generate a reduced-blur diagnostic image, the deconvolution filter generated based on the motion field vector;
- and
- outputting the reduced-blur diagnostic image for display on a display device.
An imaging system, comprising:
- an x-ray source in communication with a detector;
- a display device;
- and
- a computing device connected in communication with the display device and the detector, the computing device including a processor and non-transitory memory storing instructions executable by the processor to:
- acquire, with the x-ray source and detector, a pre-shot image of a patient at a first x-ray dose and for a first exposure duration;
- acquire, with the x-ray source and detector, a diagnostic image of the patient at a second, higher x-ray dose and for a second, longer exposure duration;
- correct blur in the diagnostic image based on the pre-shot image to generate a reduced-blur diagnostic image;
- and
- output the reduced-blur diagnostic image for display on the display.
Dependencies are inferred from the claim text.