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US 10,588,591 B2Granted
X-ray imaging apparatus and method of composing x-ray imaging images
AssigneeShimadzu Corporation
InventorsSatoshi Sano, Taro Shirai, Takahiro Doki, Akira Horiba, Naoki Morimoto
Life of this patent
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Abstract
The X-ray imaging apparatus is equipped with an image processing unit for performing a position adjustment of a first dark field image and a second dark field image based on a positional difference amount between a first absorption image of an object and a second absorption image of the object.
Claims10
An X-ray imaging apparatus comprising:
- an X-ray source;
- a detector configured to detect an X-ray irradiated from the X-ray source;
- a plurality of gratings arranged between the X-ray source and the detector, the plurality of gratings including a first grating to which the X-ray is irradiated from the X-ray source and a second grating to which the X-ray that has passed through the first grating is irradiated;
- and
- an image processing unit configured to generate a first image including an absorption image and a second image including an image other than the absorption image captured in the same arrangement as the first image from an intensity distribution of the X-ray detected by the detector,
- wherein the image processing unit is configured to perform a position adjustment of the second image in the first relative position and the second image in the second relative position based on a positional difference amount of an object between the first image in the first relative position and the first image in the second relative position among images captured by arranging the plurality of gratings and the object in the first relative position and the second relative position in two mutually different axial directions.
3 more elements
A method of composing an X-ray imaging image, comprising:
- a step of capturing a first image including an absorption image and a second image including an image other than the absorption image with a plurality of gratings and an object arranged in a first relative position and a second relative position in two mutually different axial directions;
- a step of acquiring a movement amount from the first image in the first relative position to the first image in the second relative position;
- and
- a step of performing a position adjustment of the second image based on the movement amount of the first image.
1 more element
Dependencies are inferred from the claim text.