Abstract: A radiographic imaging apparatus according to the present invention includes an orientation measurement unit configured to measure information about an orientation of the radiographic imaging apparatus, wherein the orientation measurement unit performs correction of an output value of the orientation measurement unit based on an operation of radiographic imaging.

Abstract: A lead member includes a lead conductor having a first main surface and a second main surface opposite to the first main surface. The lead member includes a resin portion that covers the first main surface, the second main surface, and two side surfaces that are between both ends of the lead conductor, while exposing the both ends of the lead conductor in a first direction. The lead conductor includes a metal substrate and a surface treatment layer formed on at least a portion of a surface of the metal substrate, the surface treatment layer including chromium, oxygen, and fluorine. A moisture content of a portion of the surface treatment layer exposed from the resin portion, as measured by coulometric Karl Fischer titration at a vaporization temperature of 220° C., is 5.0 ?g/cm2 or less.

Abstract: An imaging control apparatus obtains a plurality of images at different radiation energies, the images having been obtained as a result of irradiating a subject with radiation whose energy changes during one shot, and detecting, a plurality of times, the radiation that has passed through the subject during the one shot; generates an energy subtraction image by performing energy subtraction processing using a plurality of images; and generates a difference image using a plurality of generated energy subtraction images.

Abstract: A radiographic apparatus includes a radiation detector configured to perform radiographic imaging, an orientation measurement unit configured to perform measurement of orientation of the radiation detector, a signal output unit configured to output a trigger signal between reception of a stop signal indicating that a visiting cart carrying the radiation detector is at rest or stops and reception of a completion signal indicating completion of positioning of the radiation detector taken out of the visiting cart and a radiation generation apparatus for the radiographic imaging, the visiting cart being configured to carry the radiation generation apparatus and the radiation detector, and a control unit configured to control the orientation measurement unit to reduce a sampling period of the measurement based on reception of the trigger signal.

Abstract: A setting unit configured to set a reference orientation for calculating the orientation of a radiation detector and a reference orientation for calculating the orientation of the radiation generator sets the reference orientations of the radiation detector and the radiation generator in response to determining that a mobile radiography unit equipped with the radiation generator stands still, with the radiation detector housed, to determine whether the radiation generator and the radiation detector are arranged according to the imaging procedure.

Abstract: An image processing apparatus comprises an acquisition unit for acquiring low-energy information and high-energy information from a plurality of images that are obtained by emitting radiation toward an object, a calculation unit for calculating an effective atomic number and a surface density from the low-energy information and the high-energy information, and a generation unit for generating an image that includes color information based on the effective atomic number and the surface density.

Abstract: A radiation imaging apparatus comprises a generating unit configured to generate a material characteristic image with respect to a plurality of materials included in a radiation image that has been captured using different radiation energies; and a reconstructing unit configured to set different radiation energies for the respective plurality of materials, and to generate a reconstructed image based on monochromatic radiation images of the respective materials, the monochromatic radiation images being based on the different radiation energies.

Abstract: A radiation imaging apparatus, comprising a sensor array in which a plurality of sensor units are arranged and a driving unit for driving the sensor array, wherein each sensor unit includes u detection element for detecting radiation and a sampling unit configured to be able to sample a signal from the detection element, the sampling unit is connected to a signal line configured to propagate a signal from the detection element, the driving unit uses the sampling unit to perform a first sampling driving operation and a second sampling driving operation to sample the signal propagating through the signal line, and the driving unit starts the second sampling driving operation before the completion of the first sampling driving operation and completes the second sampling driving operation after the completion of the first sampling driving operation.

Abstract: An image processing apparatus that processes a radiation image generates a decomposition image representing a planar distribution related to a material, using a plurality of radiation images of an object containing a target object that correspond to different radiation energies, and obtains a target object image related to the target object using a band limitation image corresponding to a frequency band related to a size of the target object, the band limitation image being obtained by performing frequency decomposition on the decomposition image.

Abstract: A radiation imager comprising pixels each including a converter to generate a signal, a sampling circuit and a processor is provided. The sampling circuit samples the signal with first sensitivity and with second sensitivity higher than the first sensitivity. If a first signal value obtained by sampling the signal with the first sensitivity is smaller than a first threshold, the processor generates a pixel value based on a second signal value obtained by sampling the signal with the second sensitivity, if the first signal value exceeds a second threshold larger than the first threshold value, the processor generates a pixel value based on the first signal value, and if the first signal value is not less than the first threshold and not more than the second threshold, the processor generates a pixel value based on the first and second signal values.

Abstract: An imaging control apparatus obtains a plurality of images at different radiation energies, the images having been obtained as a result of irradiating a subject with radiation whose energy changes during one shot, and detecting, a plurality of times, the radiation that has passed through the subject during the one shot; generates an energy subtraction image by performing energy subtraction processing using a plurality of images; and generates a difference image using a plurality of generated energy subtraction images.

Abstract: An image processing apparatus comprises a filtering unit for performing recursive filtering on a first signal component and a second signal component that are obtained by emitting radiation at a plurality of levels of energy toward an object, and a generation unit for generating a moving image based on the first signal component and the second signal component on which the recursive filtering is performed. A filter coefficient of the recursive filtering performed on the first signal component and a filter coefficient of the recursive filtering performed on the second signal component differ from each other.

Abstract: An imaging control apparatus obtains a plurality of images at different radiation energies, the images having been obtained as a result of irradiating a subject with radiation whose energy changes during one shot, and detecting, a plurality of times, the radiation that has passed through the subject during the one shot; generates an energy subtraction image by performing energy subtraction processing using a plurality of images; and generates a difference image using a plurality of generated energy subtraction images.

Abstract: A radiation imaging apparatus is provided. The apparatus includes an imaging unit including pixels and a control unit. Each of the pixels includes a conversion unit and a sample/hold circuit. The control unit causes the imaging unit to perform first imaging and second imaging after the first imaging to generate one energy subtraction image, and controls a timing of causing the sample/hold circuit in the first imaging to sample a first image signal obtained by the first imaging and a timing of causing the sample/hold circuit in the second imaging to sample a second image signal obtained by the second imaging in accordance with radiation irradiation conditions set in advance so as to reduce a difference between an amount of noise contained in the first image signal and an amount of noise contained in the second image signal.

Abstract: A radiation imaging apparatus includes an imaging unit having a pixel array of pixels, and a signal processing unit for processing a signal from the imaging unit. Each pixel includes a conversion element for converting radiation into electrical signal and a reset unit for resetting the conversion element, the signal processing unit generates radiation image based on first image corresponding to electrical signal converted by the conversion unit of each pixel in a first period, and second image corresponding to electrical signal converted by the conversion element of each pixel in a second period which starts after start of the first period and ends before end of the first period, and in each pixel, the conversion element is not reset by the reset unit in the first period.

Abstract: An image processing apparatus generates a plurality of attenuation rate images using a plurality of radiation images corresponding to a plurality of different radiation energies obtained by irradiating an object with radiation, corrects the radiation images or the attenuation rate images so as to reduce an error of an attenuation rate caused depending on at least one of a dose of the radiation, a thickness of the object, and energy of the radiation, and generates a material characteristic image by energy subtraction processing using the plurality of attenuation rate images after the correction.

Abstract: An image processing apparatus comprises a planar distribution obtaining configured to, using a plurality of radiation images captured using different radiation energies as input images, obtain an output image representing a planar distribution for a substance contained in the input image, based on a likelihood and a prior probability using one of a pixel value of a pixel of interest or a pixel value of a peripheral pixel as an input, the planar distribution obtaining unit decides the output image such that a probability that an output is a value of the planar distribution when an input is the input image is maximized.

Abstract: An image processing apparatus that generates a material characteristic image with use of a plurality of radiation images that have been captured with different radiation energies, comprises a combining unit that combines radiation images based on two or more radiation images that are included among the plurality of radiation images, and combines radiation spectrums based on two or more radiation spectrums of the two or more radiation images, and a generating unit that generates a material characteristic image with use of two pairs of a radiation image and a radiation spectrum obtained from the plurality of radiation images. The generating unit uses, for at least one of the two pairs, a pair of the radiation image and the radiation spectrum combined by the combining unit.

Abstract: A radiation imaging apparatus is provided. The apparatus comprises a detection unit configured to generate an image signal according to radiation emitted by a radiation source, an image processing unit, and a control unit. The control unit performs first imaging and second imaging performed after the first imaging using radiations of different energies, the image processing unit generates an energy subtraction image using a first image signal generated by the detection unit in the first imaging and a second image signal generated by the detection unit in the second imaging, and the second imaging is performed under a radiation irradiation condition according to a noise amount included in the first image signal.

Abstract: Radiation imaging apparatus includes pixel array having pixels, readout circuit for reading signals from the pixel array, and detector for detecting, based on radiation emitted from radiation source or information provided from the radiation source, start of radiation irradiation by the radiation source, and controller for determining timing of each of operations of sample and hold in each of the pixels each time the start of radiation irradiation is detected by the detector. The timing of at least one operation of the operations is timing in radiation irradiation period, and each of the pixels includes convertor for converting radiation into electrical signal, and sample and hold circuit for sample-holding the signal from the conversion element over plural times in accordance with the timing of each of the operations determined by the controller.