X-ray imaging system and device display method
AssigneeShimadzu Corporation
InventorsShota Oshikawa, Naoya Furuhashi
Life of this patent
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Abstract
The X-ray imaging system generates a three-dimensional model of a device based on a first X-ray image and a second X-ray image. The X-ray imaging system determines an inaccurate portion of the shape in the three-dimensional model (81) by identifying a parallel portion extending along a direction parallel to the epipolar line, from the device having a linear structure. The X-ray imaging system displays the three-dimensional model and a display based on the determination result of the inaccurate portion of the shape in the three-dimensional model.
Claims7
An X-ray imaging system comprising:
- an imaging unit equipped with an X-ray irradiation unit and an X-ray detection unit, the X-ray irradiation unit being configured to irradiate a subject in which a device having a linear structure is placed inside a body of the subject, the X-ray detection unit being configured to detect X-rays transmitted through the subject, the imaging unit being configured to perform X-ray imaging on the subject at each of a first imaging angle and a second imaging angle, which are two mutually different imaging angles;
- a three-dimensional model generation unit configured to generate a three-dimensional model of the device placed inside the body of the subject, based on a first X-ray image generated by X-ray imaging at the first imaging angle and a second X-ray image generated by X-ray imaging at the second imaging angle;
- a determination unit configured to determine an inaccurate portion of a shape in the three-dimensional model of the device generated with the three-dimensional model generation unit by identifying a parallel portion extending along a direction parallel to an epipolar line from the device having the linear structure, the epipolar line representing an X-ray irradiation axis at an imaging angle for generating the other X-ray image in one of the first X-ray image and the second X-ray image;
- and
- a display unit configured to display the three-dimensional model of the device generated by the three-dimensional model generation unit and a display based on a determination result of the inaccurate portion of the shape in the three-dimensional model by the determination unit.
A device display method comprising:
- a step of performing X-ray imaging at each of a first imaging angle and a second imaging angle, which are two mutually different imaging angles, by detecting X-rays transmitted through a subject in which a device having a linear structure is placed inside a body of the subject;
- a step of generating a three-dimensional model of the device placed inside the body of the subject, based on a first X-ray image generated by X-ray imaging at the first imaging angle and a second X-ray image generated by X-ray imaging at the second imaging angle;
- a step of determining an inaccurate portion of a shape in the generated three-dimensional model of the device by identifying a parallel portion extending along a direction parallel to an epipolar line from the device having the linear structure, the epipolar line representing an X-ray irradiation axis at an imaging angle for generating the other X-ray image in one of the first X-ray image and the second X-ray image;
- and
- a step of displaying the generated three-dimensional model of the device and a display based on a determination result of the inaccurate portion of the shape in the three-dimensional model.
Dependencies are inferred from the claim text.