Radiation imaging system, control apparatus, control method of radiation imaging system, and storage medium
AssigneeCanon Kabushiki Kaisha
InventorTomohiro Kawanishi
Life of this patent
Estimating the term…
Abstract
A radiation imaging system operable to generate a plurality of radiation images based on different radiation energies, comprises: a communication unit configured to obtain at set communication intervals a temperature of a radiation tube by communication with a radiation generating unit; and a control unit configured to control, based on comparison of the temperature obtained at the communication intervals and a change rate of the temperature and respectively set threshold ranges, an operation for maintaining a driving state of the radiation tube or execution of image processing for obtaining a substance amount of a substance that forms an object using the plurality of radiation images.
Claims20
A radiation imaging system operable to generate a plurality of radiation images based on different radiation energies, the system comprising:
- at least one processor;
- and
- at least one memory storing a program including instructions executed by the at least one processor,
- wherein the at least one processor and the at least one memory being operatively coupled to function as:
- a communication unit configured to obtain at set communication intervals a temperature of a radiation tube by communication with a radiation generating unit;
- and
- a control unit configured to control, based on comparison of the temperature obtained at the communication intervals and a change rate of the temperature and respectively set threshold ranges, an operation for maintaining a driving state of the radiation tube or execution of image processing for obtaining a substance amount of a substance that forms an object using the plurality of radiation images.
A radiation imaging system operable to perform image processing based on a plurality of radiation images based on different radiation energies, the system comprising:
- at least one processor;
- and
- at least one memory storing a program including instructions executed by the at least one processor,
- wherein the at least one processor and the at least one memory being operatively coupled to function as:
- an image obtaining unit configured to obtain a pixel value of a calibration image generated by calibration of the radiation imaging system;
- and
- a control unit configured to, based on comparison of a difference between the pixel value of the calibration image and a pixel value of a reference image and a threshold range set for determining whether a temperature state of a radiation tube is stable, controls continuation of calibration execution or execution of image processing for obtaining an amount of a substance that forms an object using a plurality of radiation images.
A radiation imaging system operable to generate a plurality of radiation images based on different radiation energies, the system comprising:
- at least one processor;
- and
- at least one memory storing a program including instructions executed by the at least one processor,
- wherein the at least one processor and the at least one memory being operatively coupled to function as:
- a status obtaining unit configured to obtain current operation information of the radiation imaging system;
- a storage unit configured to store past operation information of the radiation imaging system;
- and
- a control unit configured to, in a statistical distribution that indicates operation information variability obtained by performing statistical processing on the past operation information, determines whether the current operation information is included in a statistical distribution threshold range in which a temperature state of a radiation tube is stabilized, and in a case where the current operation information is included in threshold range, uses the plurality of radiation images to execute image processing for obtaining an amount of a substance forming an object.
A control apparatus comprising:
- at least one processor;
- and
- at least one memory storing a program including instructions executed by the processor,
- wherein the at least one processor and the at least one memory being operatively coupled to function as:
- a communication unit configured to obtain a temperature of a radiation tube by communication with a radiation generating unit;
- and
- a control unit configured to control, based on comparison of the temperature and a predetermined range, to a state in which imaging related to a plurality of radiation images based on different radiation energies is possible.
A control apparatus operable to control a radiation imaging system that performs image processing based on a plurality of radiation images based on different radiation energies, the control apparatus comprising:
- at least one processor;
- and
- at least one memory storing a program including instructions executed by the processor,
- wherein the at least one processor and the at least one memory being operatively coupled to function as:
- an image obtaining unit configured to obtain a pixel value of a calibration image generated by calibration of the radiation imaging system;
- and
- a control unit configured to, based on comparison of a difference between the pixel value of the calibration image and the pixel value of a reference image and a threshold range set for determining whether a temperature state of a radiation tube is stable, controls continuation of calibration execution or execution of image processing for obtaining an amount of a substance that forms an object using a plurality of radiation images.
A control apparatus operable to control a radiation imaging system for generating a plurality of radiation images based on different radiation energies, the system comprising:
- at least one processor;
- and
- at least one memory storing a program including instructions executed by the processor,
- wherein the at least one processor and the at least one memory being operatively coupled to function as:
- a status obtaining unit configured to obtain current operation information of the radiation imaging system;
- a storage unit configured to store past operation information of the radiation imaging system;
- and
- a control unit configured to, in a statistical distribution that indicates operation information variability obtained by performing statistical processing on the past operation information, determines whether the current operation information is included in a statistical distribution threshold range in which a temperature state of a radiation tube is stabilized, and in a case where the current operation information is included in threshold range, uses the plurality of radiation images to execute image processing for obtaining an amount of a substance forming an object.
A control method comprising:
- obtaining a temperature of a radiation tube by communication with a radiation generating unit;
- and
- controlling, based on a comparison of the temperature and a predetermined range, to a state in which imaging related to a plurality of radiation images based on different radiation energies is possible.
A method for controlling a radiation imaging system for performing image processing based on a plurality of radiation images based on different radiation energies, the method comprising:
- obtaining a pixel value of a calibration image generated by calibration of the radiation imaging system;
- and
- based on comparison of a difference between the pixel value of the calibration image and the pixel value of a reference image and a threshold range set for determining whether a temperature state of a radiation tube is stable, controls continuation of calibration execution or execution of image processing for obtaining an amount of substance that forms an object using a plurality of radiation images.
A method for controlling a radiation imaging system operable to generate a plurality of radiation images based on different radiation energies, the method comprising:
- obtaining current operation information of the radiation imaging system;
- storing, in a storage unit, past operation information of the radiation imaging system;
- and
- in a statistical distribution that indicates operation information variability obtained by performing statistical processing on the past operation information, determining whether the current operation information is included in a statistical distribution threshold range in which a temperature state of a radiation tube is stabilized, and in a case where the current operation information is included in threshold range, using the plurality of radiation images to execute image processing for obtaining an amount of a substance forming an object.
A non-transitory computer readable storage medium storing a program for causing a computer to function as each unit comprising:
- a communication unit configured to obtain a temperature of a radiation tube by communicating with a radiation generating unit;
- and
- a control unit configured to control , based on a comparison of the temperature and a predetermined range , to a state in which imaging related to a plurality of radiation images based on different radiation energies is possible.
Dependencies are inferred from the claim text.