Fujifilm Corporation

Tetsuya Tsuji

Haruyasu Nakatsugawa

Takashi Tajima

Kentaro Noma

Jun Enomoto

Hiroaki Yasuda

Takeshi Kuwabara

Yasufumi Oda

Takeshi Koishi

Ryo Imamura

Kiyomi Tamagawa

Takeshi Ohkubo

Ryou Imamura

Kohei Gemma

Kohei Ota

Yoshihisa Hirano

A setting device includes at least one processor configured to acquire imaging part information indicating an imaging part of a subject captured by a radiation emitting device, acquire body thickness information, and derive target values of a tube voltage and a mAs value for emitting the radiation such that a dose of the radiation transmitted through the imaging part is the same as a dose at a reference body thickness, based on the acquired body thickness information and the acquired imaging part information. The at least one processor is also configured to derive a set value of a tube current for obtaining the target mAs value and a set value of an irradiation time of the radiation based on at least one of an upper limit value of the irradiation time, a tube current corresponding to a focus size, or a maximum output value of a tube.

Setting device, setting method, and setting program

Disclosed is a technique capable of enhancing usability of a radiographic image capturing apparatus, system, control method of the radiographic image capturing apparatus and a non-transitory computer readable recording medium recorded with a control program, for a user. A radiographic image capturing apparatus includes: an I/F unit and an imaging control unit that function as a communication unit that selectively performs communication with any one of a portable information terminal and a console which are plural control apparatuses that have different image processing capacities with respect to a radiographic image and respectively perform a control relating to capturing of the radiographic image; and an imaging control unit that functions as a selection unit that selects any one of plural imaging modes predetermined with respect to the capturing of the radiographic image according to the image processing capacity of the control apparatus that performs communication with the communication unit.

Radiographic image capturing apparatus, radiographic image capturing system, control method of radiographic image capturing apparatus, and control program of radiographic image capturing apparatus

An image processing apparatus includes: an acquisition unit that acquires a radiographic image generated by a radiation detector irradiated with radiation from a radiography apparatus including the radiation detector in which plural pixels, each of which includes a conversion element that generates a larger amount of charge as it is irradiated with a larger amount of radiation, are arranged; and a correction unit that corrects scattered ray components caused by scattered rays of the radiation included in the radiographic image, using correction data for correcting scattered rays which is associated with each of plural regions in the radiographic image.

Image processing apparatus, radiography system, image processing method, and image processing program

A radiography system includes a radiography apparatus including two radiation detectors and a console that corrects a ratio of pixel values in a region, which corresponds to a soft tissue of a subject and is a corresponding region of radiographic images generated by the two radiation detectors irradiated with radiations having different energy levels, on the basis of correction data corresponding to a body thickness, and derives the bone density of the subject on the basis of a difference between a ratio of pixel values in a region corresponding to a bone tissue of the subject and the corrected ratio of the pixel values.

Radiography system, radiography method, radiography program, and derivation apparatus

An FPD detects an X-ray image of an object. The FPD includes a plurality of pixels arranged in its image capturing field. Each pixel receives X-rays emitted from an X-ray source, and outputs a pixel value in accordance with an X-ray dose applied thereto. A pixel determiner determines a minimum-value pixel out of the pixels based on the pixel values of the pixels. The minimum-value pixel is a pixel whose pixel value is the lowest. The pixel determiner sets the minimum-value pixel as an exposure control pixel. A comparator compares a first integrated value, which is an integrated value of the pixel values of the minimum-value pixel, with a predetermined first threshold value. The comparator performs X-ray emission control such that, when the first integrated value has reached the first threshold value, the X-ray source stops emitting the X-rays.

Radiation imaging apparatus and control method thereof, and radiation imaging system

A correction image creation device includes: an acquisition unit that acquires at least one original image, which is a basis when creating a correction image used in offset correction with respect to an image that has been obtained by imaging; a determination unit that determines whether or not noise from the exterior is superimposed on the original image; and a cancellation unit that cancels creation of the correction image in a case in which it has been determined by the determination unit that noise from the exterior is superimposed on the original image.

Correction image creation device, radiographic imaging device, imaging device, computer readable medium and correction image creation method

In a radiographic imaging apparatus, a radiation image of an object is detected by use of one of first and second electronic cassettes, to input the radiation image to the console device. The first electronic cassette is changed over between a normal transmission mode and a relay transmission mode. In the normal transmission mode, the radiation image is transmitted through a path from the first electronic cassette to the console device, and in the relay transmission mode, the radiation image is transmitted from the first electronic cassette to the second electronic cassette wirelessly and then from the second electronic cassette to the console device. Transmission of a radiation image can be performed reliably without unwanted interruption, because an indirect path of the relay transmission mode can be used even upon occurrence of a technical problem of inefficiency in the normal transmission mode.

Radiographic imaging apparatus and electronic cassette

A radiation image capturing system capable of improving image quality of a radiation image is provided. A position of a joint of a grid is determined in consideration of displacement of an angle of incidence of radiation on a grid unit and a radiation detector group, and a joint image caused by the joint of the grid is prevented from being included in a search range of a position of a boundary in the radiation image captured by the radiation detector. The joint of the grid is provided in a position away &#xb1;(y1+2&#xd7;y2)&#xd7;tan&#x3b2; or more from a position of a step of the radiation detector.

Radiation image capturing system

In the radiographic imaging device, a portion of a second effective imaging region at a first side or a second side of a sensor unit of a second radiation detection panel, and a portion of a first effective imaging region at a third side or a fourth side of the sensor unit of a first radiation detection panel, are overlapped in a radiation irradiating direction. A portion of a second effective imaging region at the third side or the fourth side of the sensor unit of the second radiation detection panel, and a portion of a third effective imaging region at the third side or the fourth side of the sensor unit of the third radiation detection panel, are overlapped in the radiation irradiating direction. The second radiation detection panel is disposed at a side opposite the radiation irradiating section side of the first radiation detection panel and the third radiation detection panel.

Radiographic imaging device

An X-ray imaging system is provided with an FPD and an image processing apparatus. The image processing apparatus is provided with a CPU, a coefficient table, an interpolator and a residual image remover. The CPU acquires an image taken with the FPD. A plurality of coefficients each corresponding to a parameter that changes an attenuation curve are previously stored in the coefficient table. The attenuation curve represents time-varying attenuation of a residual image of the previous image. In a case where the coefficient corresponding to a parameter of the present exposure is not contained in the coefficient table, an appropriate coefficient is calculated by interpolation based on the coefficients contained in the coefficient table. The residual image remover calculates the residual image based on the stored coefficient or the calculated coefficient and a time lapse between the previous and subsequent exposures, and removes the residual image from the present image.

Image processing apparatus and image processing method for removing residual image

On control charge information, which is obtained from an on-controlled detection element, is acquired with respect to each of the detection elements of a radiation detector, and off control charge information, which corresponds to the on-controlled detection element, is acquired with respect to each of predetermined detection element intervals. Element interpolated off control charge information representing the off control charge information having not been acquired is formed by performing an interpolating operation in accordance with the off control charge information having been acquired with respect to each of the predetermined detection element intervals. The on control charge information is corrected with the corresponding off control charge information or the corresponding element interpolated off control charge information.

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Kanagawa, Japan

Tetsuya Tsuji