X-ray imaging apparatus and measurement method
AssigneeCanon Kabushiki Kaisha
InventorKeiji Tsuchiya
Life of this patent
Estimating the term…
Abstract
An X-ray imaging apparatus which obtains an X-ray image, the apparatus includes: an imaging unit including a plurality of detecting elements adapted to convert X-rays generated by an X-ray generating apparatus which outputs or stops X-rays in accordance with an operation instruction into an image signal; and an obtaining unit adapted to obtain an operation start timing of the X-ray generating apparatus based on an image signal output from the imaging unit and obtain a difference between a timing of an operation instruction to the X-ray generating apparatus and the operation start timing.
Claims19
An apparatus connectable to an X-ray detector adapted to acquire an X-ray image by a plurality of detecting elements which acquire electrical signals if X-rays are irradiated thereon from an X-ray generator, comprising:
- a first obtaining unit adapted to obtain output timing of a control signal for changing a generating status of the X-rays in the X-ray generator based on a signal from the X-ray generator;
- a second obtaining unit adapted to obtain change timing of the generating status of the X-rays in response to the control signal based on output from the X-ray detector on which the X-rays are irradiated that are generated by the X-ray generator in response to the control signal;
- and
- a third obtaining unit adapted to obtain a delay time of operation associated with the X-ray generator based on the output timing of the control signal and the change timing.
An information processing method for processing information from an X-ray detector adapted to acquire an X-ray image by a plurality of detecting elements which acquire electrical signals if X-rays are irradiated thereon from an X-ray generator, comprising the steps of:
- obtaining output timing of a control signal for changing a generating status of the X-rays in the X-ray generator based on a signal from the X-ray generator;
- obtaining change timing of the generating status of the X-rays in response to the control signal based on output from the X-ray detector on which the X-rays are irradiated that are generated by the X-ray generator in response to the control signal;
- and
- obtaining a delay time of operation associated with the X-ray generator based on the output timing of the control signal and the change timing.
A control apparatus for an X-ray detector adapted to acquire an X-ray image by a plurality of detecting elements which acquire electrical signals if X-rays are irradiated thereon from an X-ray generator, comprising:
- an obtaining unit adapted to obtain a delay time of operation associated with the X-ray generator, said delay time corresponding to a difference between output timing of a control signal for changing a generating status of the X-rays in the X-ray generator and change timing of the generating status of the X-rays in response to the control signal;
- and
- a control unit adapted to control driving timing of the X-ray detector based on the delay time.
A control method for an X-ray detector adapted to acquire an X-ray image by a plurality of detecting elements which acquire electrical signals if X-rays are irradiated thereon from an X-ray generator, comprising the steps of:
- obtaining a delay time of operation associated with the X-ray generator, said delay time corresponding to a difference between output timing of a control signal for changing a generating status of the X-rays in the X-ray generator and change timing of the generating status of the X-rays in response to the control signal;
- and
- controlling driving timing of the X-ray detector based on the delay time.
Dependencies are inferred from the claim text.