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US 2019/0290234 A1Published application
Image processing apparatus, radiography system, image processing method, and image processing program
AssigneeFUJIFILM Corporation
InventorTakao KUWABARA
Life of this patent
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Abstract
A radiography system includes a radiography apparatus including two radiation detectors and a console that corrects scattered ray components of a first radiographic image generated by the radiography apparatus, using first correction data, corrects scattered ray components of a second radiographic image, using second correction data different from first correction data, and performs an energy subtraction process, using the corrected first and second radiographic images.
Claims20
An image processing apparatus comprising:
- an acquisition unit that acquires, from a radiography apparatus, a first radiographic image generated by a first radiation detector irradiated with radiation with a first energy level, and a second radiographic image generated by a second radiation detector irradiated with radiation with a second energy level different from the first energy level, the radiography apparatus including the first and second radiation detectors in which a plurality of pixels are arranged and that are arranged along a direction in which the radiation is emitted, each of the plurality of pixels includes a conversion element that generates a larger amount of charge as it is irradiated with a larger amount of radiation;
- a correction unit that corrects scattered ray components caused by scattered rays of the radiation included in the first radiographic image, using first correction data for correcting scattered rays which is associated with the first radiation detector, and corrects scattered ray components caused by scattered rays of the radiation included in the second radiographic image, using second correction data for correcting scattered rays which is associated with the second radiation detector and is different from the first correction data;
- and
- an energy subtraction processing unit that performs an energy subtraction process using the first and second radiographic images corrected by the correction unit.
1 more element
An image processing apparatus comprising:
- an acquisition unit that acquires, from a radiography apparatus, a first radiographic image generated by a single radiation detector irradiated with radiation with a first energy level, and a second radiographic image generated by the radiation detector irradiated with radiation with a second energy level different from the first energy level, the radiography apparatus including the single radiation detector in which a plurality of pixels are arranged, each of the plurality of pixels includes a conversion element that generates a larger amount of charge as it is irradiated with a larger amount of radiation;
- a correction unit that corrects scattered ray components caused by scattered rays of the radiation included in the first radiographic image, using first correction data for correcting scattered rays which is associated with the first energy level, and corrects scattered ray components caused by scattered rays of the radiation included in the second radiographic image, using second correction data for correcting scattered rays which is associated with the second energy level and is different from the first correction data;
- and
- an energy subtraction processing unit that performs an energy subtraction process using the first and second radiographic images corrected by the correction unit.
1 more element
An image processing method comprising:
- acquiring, from a radiography apparatus, a first radiographic image generated by a first radiation detector irradiated with radiation with a first energy level, and a second radiographic image generated by a second radiation detector irradiated with radiation with a second energy level different from the first energy level, the radiography apparatus including the first and second radiation detectors in which a plurality of pixels are arranged and that are arranged along a direction in which the radiation is emitted, each of the plurality of pixels includes a conversion element that generates a larger amount of charge as it is irradiated with a larger amount of radiation;
- correcting scattered ray components caused by scattered rays of the radiation included in the first radiographic image, using first correction data for correcting scattered rays which is associated with the first radiation detector, and correcting scattered ray components caused by scattered rays of the radiation included in the second radiographic image, using second correction data for correcting scattered rays which is associated with the second radiation detector and is different from the first correction data;
- and
- performing an energy subtraction process using the corrected first and second radiographic images.
1 more element
An image processing method comprising:
- acquiring, from a radiography apparatus, a first radiographic image generated by a single radiation detector irradiated with radiation with a first energy level, and a second radiographic image generated by the radiation detector irradiated with radiation with a second energy level different from the first energy level, the radiography apparatus including the single radiation detector in which a plurality of pixels are arranged, each of the plurality of pixels includes a conversion element that generates a larger amount of charge as it is irradiated with a larger amount of radiation;
- correcting scattered ray components caused by scattered rays of the radiation included in the first radiographic image, using first correction data for correcting scattered rays which is associated with the first energy level, and correcting scattered ray components caused by scattered rays of the radiation included in the second radiographic image, using second correction data for correcting scattered rays which is associated with the second energy level and is different from the first correction data;
- and
- performing an energy subtraction process using the corrected first and second radiographic images.
1 more element
A non-transitory storage medium storing a program that causes a computer to perform an image processing, the image processing comprising:
- acquiring, from a radiography apparatus, a first radiographic image generated by a first radiation detector irradiated with radiation with a first energy level, and a second radiographic image generated by a second radiation detector irradiated with radiation with a second energy level different from the first energy level, the radiography apparatus including the first and second radiation detectors in which a plurality of pixels are arranged and that are arranged along a direction in which the radiation is emitted, each of the plurality of pixels includes a conversion element that generates a larger amount of charge as it is irradiated with a larger amount of radiation;
- correcting scattered ray components caused by scattered rays of the radiation included in the first radiographic image, using first correction data for correcting scattered rays which is associated with the first radiation detector, and correcting scattered ray components caused by scattered rays of the radiation included in the second radiographic image, using second correction data for correcting scattered rays which is associated with the second radiation detector and is different from the first correction data;
- and
- performing an energy subtraction process using the corrected first and second radiographic images.
1 more element
A non-transitory storage medium storing a program that causes a computer to perform an image processing, the image processing comprising:
- acquiring, from a radiography apparatus, a first radiographic image generated by a single radiation detector irradiated with radiation with a first energy level, and a second radiographic image generated by the radiation detector irradiated with radiation with a second energy level different from the first energy level, the radiography apparatus including the single radiation detector in which a plurality of pixels are arranged, each of the plurality of pixels includes a conversion element that generates a larger amount of charge as it is irradiated with a larger amount of radiation;
- correcting scattered ray components caused by scattered rays of the radiation included in the first radiographic image, using first correction data for correcting scattered rays which is associated with the first energy level, and correcting scattered ray components caused by scattered rays of the radiation included in the second radiographic image, using second correction data for correcting scattered rays which is associated with the second energy level and is different from the first correction data;
- and
- performing an energy subtraction process using the corrected first and second radiographic images.
1 more element
Dependencies are inferred from the claim text.