Abstract: A radiography system includes a radiation generation device including a radiation source unit that emits radiation, a projector that projects an image in an emission direction of the radiation, and at least one processor. The processor acquires distance information indicating a distance from the radiation source unit to a projection surface on which the image is projected, acquires a subject image which is a radiation image captured in the past for a subject of the radiation image, derives, based on the distance information, a visualization range of the subject visualized in the radiation image, which is captured for the subject and is based on the radiation emitted from the radiation source unit, trims the subject image based on the visualization range, and causes the projector to project the trimmed subject image.

Abstract: A radiation generation device includes a radiation source unit that emits radiation, and at least one processor. The processor acquires distance information indicating a distance to a radiation detection device connected in a communicable manner, and derives, based on the distance information, an irradiation condition of the radiation in a case of capturing a radiation image based on the radiation emitted from the radiation source unit by using the radiation detection device.

Abstract: A CPU acquires a radiographic image obtained by imaging an imaging region where a patient is present, with a radioscopy apparatus using radiation emitted from a radiation source and applied to an irradiation field adjusted by a collimator. The CPU specifies a structure image that is included in the radiographic image and represents a structure of a specific shape having transmittance of radiation lower than the patient, based on the specific shape. The CPU executes image processing corresponding to the structure image on a patient image region imaged by a radioscopy apparatus in a case where an irradiation field excluding a position of the structure is set as the irradiation field, in a region in the radiographic image.

Abstract: There is provided a radiation detector including: a radiation detection unit that generates and outputs a radiation image from an electric charge generated in response to emitted radiation; and a communication unit that operates as a master to perform wireless communication with a slave and that is prevented from being directly connected to a global network, in a case of transmitting the radiation image generated by the radiation detection unit.

Abstract: A body thickness conversion unit converts a body thickness from a distance image imaged by a distance measurement camera to acquire the body thickness. A setting unit sets a gradation transformation function for use in gradation transformation processing to a radiographic image corresponding to the body thickness. A radiographic image acquisition unit acquires the radiographic image output from a radiation detector in radioscopy. A gradation transformation processing unit starts the gradation transformation processing with the gradation transformation function set by the setting unit.

Abstract: A radiation detector includes a memory controller and a sleep control unit. The sleep control unit supplies a power supply power to a main control unit and cuts off supply of the power supply power to at least a part other than the main control unit in a first power consumption reduction mode. In addition, the sleep control unit cuts off supply of the power supply power to at least a part of the main control unit and at least a part other than the main control unit in a second power consumption reduction mode. In addition, the memory controller prevents a volatile memory from being deactivated during the second power consumption reduction mode.

Abstract: A radiation detector can perform wireless communication and includes a CPU that is provided in a housing accommodating a radiation detection unit. The CPU receives an instruction to change a connection destination of the wireless communication which is input by operating an operation button that is provided in the housing to input the instruction to change the connection destination and specifies a connection destination corresponding to the change instruction from a plurality of preset connection destinations in a case in which the change instruction is received. The CPU determines whether or not a connection to the plurality of connection destinations by the wireless communication is possible. The CPU performs control to display information indicating that the connection is not possible on a display unit provided in the housing in a case in which it is determined that the connection to the specified connection destination by the wireless communication is not possible.

Abstract: A CPU specifies whether or not a structure of a specific shape having transmittance of radiation lower than a patient is present in an imaging region of a radioscopy apparatus that captures a radiographic image with the radiation emitted from a radiation source, based on the specific shape. The CPU performs control for setting an imaging region excluding the structure as the imaging region before irradiation of the radiation is performed from the radiation source in a case where the structure is present.

Abstract: A body thickness conversion unit converts a body thickness from a distance image imaged by a distance measurement camera to acquire the body thickness. A strength setting unit sets strength of noise reduction processing to a radiographic image to be stronger as the body thickness is thicker. A radiographic image acquisition unit acquires the radiographic image output from a radiation detector in radioscopy. A noise reduction processing unit executes the noise reduction processing on the radiographic image with the strength set by the strength setting unit.

Abstract: A body thickness conversion unit converts a body thickness from a distance image imaged by a distance measurement camera to acquire the body thickness. A setting unit sets a gradation transformation function for use in gradation transformation processing to a radiographic image corresponding to the body thickness. A radiographic image acquisition unit acquires the radiographic image output from a radiation detector in radioscopy. A gradation transformation processing unit starts the gradation transformation processing with the gradation transformation function set by the setting unit.

Abstract: A CPU acquires a radiographic image obtained by imaging an imaging region where a patient is present, with a radioscopy apparatus using radiation emitted from a radiation source and applied to an irradiation field adjusted by a collimator. The CPU specifies a structure image that is included in the radiographic image and represents a structure of a specific shape having transmittance of radiation lower than the patient, based on the specific shape. The CPU executes image processing corresponding to the structure image on a patient image region imaged by a radioscopy apparatus in a case where an irradiation field excluding a position of the structure is set as the irradiation field, in a region in the radiographic image.

Abstract: A console includes a CPU as at least one processor. The CPU acquires a radiographic image obtained by imaging an imaging region where a patient is present, with a radioscopy apparatus. The CPU specifies a structure image that is included in the radiographic image and represents a structure of a specific shape having transmittance of radiation lower than the patient, based on the specific shape. The CPU executes image processing corresponding to the structure image to the radiographic image.

Abstract: In the radiography system, a camera image of the usage environment in which the electronic cassette is used is captured. An in-image cassette region of the electronic cassette is detected from the camera image. The cassette ID of the electronic cassette is acquired from the in-image cassette region. The acquired cassette ID is collated with the cassette ID of the use cassette set in the console to check whether the use cassette is present.

Abstract: A composite image generation unit of a CPU of a console combines a camera image obtained by capturing an image of a subject located in an irradiation field using a camera and a positioning index image indicating a set position of the subject, which has been set in advance with respect to an in-image cassette position that is the position of the electronic cassette in the camera image, to generate a composite image. In a case in which the in-image cassette position is changed with the movement of the electronic cassette, the composite image generation unit changes a display position of the positioning index image with the change in the in-image cassette position.

Abstract: A position detection unit is disposed at an exposure position that is included in a camera image and a field of view of a camera and outputs a position signal indicating the position of a part of a peripheral portion of an electronic cassette. The calculation unit calculates an in-image cassette position which is the position of the electronic cassette in the camera image, on the basis of the position, direction, and size of the position detection unit in the camera image and the position signal. A composite image generation unit generates a composite image of the camera image and a cassette frame indicating the in-image cassette position. A display controller displays the composite image on a touch panel.

Abstract: A composite image generation unit of a CPU of a console combines a camera image obtained by capturing an image of a subject located in an irradiation field using a camera and a positioning index image indicating a set position of the subject, which has been set in advance with respect to an in-image cassette position that is the position of the electronic cassette in the camera image, to generate a composite image. In a case in which the in-image cassette position is changed with the movement of the electronic cassette, the composite image generation unit changes a display position of the positioning index image with the change in the in-image cassette position.

Abstract: In the radiography system, a camera image of the usage environment in which the electronic cassette is used is captured. An in-image cassette region of the electronic cassette is detected from the camera image. The cassette ID of the electronic cassette is acquired from the in-image cassette region. The acquired cassette ID is collated with the cassette ID of the use cassette set in the console to check whether the use cassette is present.

Abstract: A composite image generation unit of a CPU of a console combines a camera image obtained by capturing an image of a subject located in an irradiation field using a camera and a positioning index image indicating a set position of the subject, which has been set in advance with respect to an in-image cassette position that is the position of the electronic cassette in the camera image, to generate a composite image. In a case in which the in-image cassette position is changed with the movement of the electronic cassette, the composite image generation unit changes a display position of the positioning index image with the change in the in-image cassette position.

Abstract: In the radiography system, a camera provided in an X-ray source captures a camera image indicating a usage environment in which an electronic cassette is used. The electronic cassette is inserted into the field of view of the camera. An in-image cassette region of the electronic cassette is detected from the camera image. A cassette ID of the electronic cassette is acquired from the in-image cassette region. The acquired cassette ID is collated with registration information set in a console and a use cassette setting process is performed on the basis of the collation result.

Abstract: In the radiography system, a camera image of the usage environment in which the electronic cassette is used is captured. An in-image cassette region of the electronic cassette is detected from the camera image. The cassette ID of the electronic cassette is acquired from the in-image cassette region. The acquired cassette ID is collated with the cassette ID of the use cassette set in the console to check whether the use cassette is present.