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US 11,599,990 B2Granted
Deterioration determination method and deterioration determination device for industrial x-ray imaging apparatus
AssigneeShimadzu Corporation
InventorsBunta Matsuhana, Goro Kambe
Life of this patent
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Abstract
A deterioration determination method in a deterioration determination device configured to determine deterioration of an X-ray detector of an industrial X-ray imaging apparatus, the deterioration determination method including: an acquisition step of acquiring a captured image generated by the X-ray detector; a statistical processing step of generating statistical processing information of the captured image; and a determination step of determining whether or not the X-ray detector has been deteriorated, based on the statistical processing information.
Claims14
A deterioration determination method in a deterioration determination device configured to determine deterioration of an X-ray detector of an industrial X-ray imaging apparatus, the deterioration determination method comprising:
- an acquisition step of acquiring a captured image generated by the X-ray detector;
- a statistical processing step of generating statistical processing information of the captured image;
- and
- a determination step of determining whether or not the X-ray detector has been deteriorated, based on the statistical processing information,
- wherein the industrial X-ray imaging apparatus includes an X-ray source, and a stage which is disposed between the X-ray source and the X-ray detector and on which an imaging object is placed;
- wherein the captured image includes at least one of a first captured image generated by the X-ray detector in a state where the X-ray source is turned off, and a second captured image generated by the X-ray detector in a state where the X-ray source is turned on and the imaging object is not placed on the stage;
- wherein the statistical processing information is a first ratio indicating a ratio of an average value of luminance of the first captured image in a state where the X-ray detector is exposed to an average value of luminance of the first captured image when the X-ray detector is in an initial state;
- and
- wherein, in the determination step, it is determined that the X-ray detector has been deteriorated when the first ratio is equal to or smaller than a second threshold value.
6 more elements
A deterioration determination method in a deterioration determination device configured to determine deterioration of an X-ray detector of an industrial X-ray imaging apparatus, the deterioration determination method comprising:
- an acquisition step of acquiring a captured image generated by the X-ray detector;
- a statistical processing step of generating statistical processing information of the captured image;
- and
- a determination step of determining whether or not the X-ray detector has been deteriorated, based on the statistical processing information,
- wherein the industrial X-ray imaging apparatus includes an X-ray source, and a stage which is disposed between the X-ray source and the X-ray detector and on which an imaging object is placed;
- wherein the captured image includes at least one of a first captured image generated by the X-ray detector in a state where the X-ray source is turned off, and a second captured image generated by the X-ray detector in a state where the X-ray source is turned on and the imaging object is not placed on the stage;
- wherein the statistical processing information is a standard deviation of luminance of the first captured image;
- and
- wherein, in the determination step, it is determined that the X-ray detector has been deteriorated when the standard deviation is equal to or larger than a fourth threshold value.
6 more elements
A deterioration determination method in a deterioration determination device configured to determine deterioration of an X-ray detector of an industrial X-ray imaging apparatus, the deterioration determination method comprising:
- an acquisition step of acquiring a captured image generated by the X-ray detector;
- a statistical processing step of generating statistical processing information of the captured image;
- and
- a determination step of determining whether or not the X-ray detector has been deteriorated, based on the statistical processing information,
- wherein the industrial X-ray imaging apparatus includes an X-ray source, and a stage which is disposed between the X-ray source and the X-ray detector and on which an imaging object is placed;
- wherein the captured image includes at least one of a first captured image generated by the X-ray detector in a state where the X-ray source is turned off, and a second captured image generated by the X-ray detector in a state where the X-ray source is turned on and the imaging object is not placed on the stage;
- wherein the statistical processing information is a standard deviation of luminance of the second captured image;
- and
- wherein, in the determination step, it is determined that the X-ray detector has been deteriorated when the standard deviation is equal to or larger than a fifth threshold value.
6 more elements
A deterioration determination method in a deterioration determination device configured to determine deterioration of an X-ray detector of an industrial X-ray imaging apparatus, the deterioration determination method comprising:
- an acquisition step of acquiring a captured image generated by the X-ray detector;
- a statistical processing step of generating statistical processing information of the captured image;
- and
- a determination step of determining whether or not the X-ray detector has been deteriorated, based on the statistical processing information,
- wherein the industrial X-ray imaging apparatus includes an X-ray source, and a stage which is disposed between the X-ray source and the X-ray detector and on which an imaging object is placed;
- wherein the captured image includes at least one of a first captured image generated by the X-ray detector in a state where the X-ray source is turned off, and a second captured image generated by the X-ray detector in a state where the X-ray source is turned on and the imaging object is not placed on the stage;
- wherein the statistical processing information is a second ratio indicating a ratio of a standard deviation of luminance of the first captured image to an average value of the luminance of the first captured image;
- and
- wherein, in the determination step, it is determined that the X-ray detector has been deteriorated when the second ratio is equal to or larger than a sixth threshold value.
6 more elements
A deterioration determination method in a deterioration determination device configured to determine deterioration of an X-ray detector of an industrial X-ray imaging apparatus, the deterioration determination method comprising:
- an acquisition step of acquiring a captured image generated by the X-ray detector;
- a statistical processing step of generating statistical processing information of the captured image;
- and
- a determination step of determining whether or not the X-ray detector has been deteriorated, based on the statistical processing information,
- wherein, in the statistical processing step, statistical processing information of a part of the captured image is generated;
- wherein the captured image includes a plurality of regions arranged in a first direction of the captured image;
- wherein the X-ray detector includes an image sensor corresponding to each of the plurality of regions;
- and
- wherein the part of the image corresponds to a part of a region in a second direction orthogonal to the first direction in each of the plurality of regions.
6 more elements
A deterioration determination device configured to determine deterioration of an X-ray detector of an industrial X-ray imaging apparatus, the deterioration determination device comprising:
- an acquisition section configured to acquire a captured image generated by the X-ray detector;
- a statistical processing section configured to generate statistical processing information of the captured image;
- and
- a determination section configured to determine whether or not the X-ray detector has been deteriorated, based on the statistical processing information,
- wherein the industrial X-ray imaging apparatus includes an X-ray source, and a stage which is disposed between the X-ray source and the X-ray detector and on which an imaging object is placed;
- wherein the captured image includes at least one of a first captured image generated by the X-ray detector in a state where the X-ray source is turned off, and a second captured image generated by the X-ray detector in a state where the X-ray source is turned on and the imaging object is not placed on the stage;
- wherein the statistical processing information is a first ratio indicating a ratio of an average value of luminance of the first captured image in a state where the X-ray detector is exposed to an average value of luminance of the first captured image when the X-ray detector is in an initial state;
- and
- wherein, in the determination step, it is determined that the X-ray detector has been deteriorated when the first ratio is equal to or smaller than a second threshold value.
6 more elements
A deterioration determination device configured to determine deterioration of an X-ray detector of an industrial X-ray imaging apparatus, the deterioration determination device comprising:
- an acquisition section configured to acquire a captured image generated by the X-ray detector;
- a statistical processing section configured to generate statistical processing information of the captured image;
- and
- a determination section configured to determine whether or not the X-ray detector has been deteriorated, based on the statistical processing information,
- wherein the industrial X-ray imaging apparatus includes an X-ray source, and a stage which is disposed between the X-ray source and the X-ray detector and on which an imaging object is placed;
- wherein the captured image includes at least one of a first captured image generated by the X-ray detector in a state where the X-ray source is turned off, and a second captured image generated by the X-ray detector in a state where the X-ray source is turned on and the imaging object is not placed on the stage;
- wherein the statistical processing information is a standard deviation of luminance of the first captured image;
- and
- wherein, in the determination step, it is determined that the X-ray detector has been deteriorated when the standard deviation is equal to or larger than a fourth threshold value.
6 more elements
A deterioration determination device configured to determine deterioration of an X-ray detector of an industrial X-ray imaging apparatus, the deterioration determination device comprising:
- an acquisition section configured to acquire a captured image generated by the X-ray detector;
- a statistical processing section configured to generate statistical processing information of the captured image;
- and
- a determination section configured to determine whether or not the X-ray detector has been deteriorated, based on the statistical processing information
- wherein the industrial X-ray imaging apparatus includes an X-ray source, and a stage which is disposed between the X-ray source and the X-ray detector and on which an imaging object is placed;
- wherein the captured image includes at least one of a first captured image generated by the X-ray detector in a state where the X-ray source is turned off, and a second captured image generated by the X-ray detector in a state where the X-ray source is turned on and the imaging object is not placed on the stage;
- wherein the statistical processing information is a standard deviation of luminance of the second captured image;
- and
- wherein, in the determination step, it is determined that the X-ray detector has been deteriorated when the standard deviation is equal to or larger than a fifth threshold value.
6 more elements
A deterioration determination device configured to determine deterioration of an X-ray detector of an industrial X-ray imaging apparatus, the deterioration determination device comprising:
- an acquisition section configured to acquire a captured image generated by the X-ray detector;
- a statistical processing section configured to generate statistical processing information of the captured image;
- and
- a determination section configured to determine whether or not the X-ray detector has been deteriorated, based on the statistical processing information,
- wherein the industrial X-ray imaging apparatus includes an X-ray source, and a stage which is disposed between the X-ray source and the X-ray detector and on which an imaging object is placed;
- wherein the captured image includes at least one of a first captured image generated by the X-ray detector in a state where the X-ray source is turned off, and a second captured image generated by the X-ray detector in a state where the X-ray source is turned on and the imaging object is not placed on the stage;
- wherein the statistical processing information is a second ratio indicating a ratio of a standard deviation of luminance of the first captured image to an average value of the luminance of the first captured image;
- and
- wherein, in the determination step, it is determined that the X-ray detector has been deteriorated when the second ratio is equal to or larger than a sixth threshold value.
6 more elements
A deterioration determination device configured to determine deterioration of an X-ray detector of an industrial X-ray imaging apparatus, the deterioration determination device comprising:
- an acquisition section configured to acquire a captured image generated by the X-ray detector;
- a statistical processing section configured to generate statistical processing information of the captured image;
- and
- a determination section configured to determine whether or not the X-ray detector has been deteriorated, based on the statistical processing information,
- wherein, in the statistical processing step, statistical processing information of a part of the captured image is generated;
- wherein the captured image includes a plurality of regions arranged in a first direction of the captured image;
- wherein the X-ray detector includes an image sensor corresponding to each of the plurality of regions;
- and
- wherein the part of the image corresponds to a part of a region in a second direction orthogonal to the first direction in each of the plurality of regions.
6 more elements
Dependencies are inferred from the claim text.