Abstract: An image processing apparatus includes an image obtaining unit configured to obtain a first radiographic image and a second radiographic image, the first radiographic image being obtained by irradiating a subject with radiation of a first energy, the second radiographic image being obtained after the first radiographic image by irradiating the subject with radiation of a second energy different from the first energy, an estimation unit configured to estimate information about an afterimage of the first radiographic image in the second radiographic image based on information about a soft tissue region of the subject in the first radiographic image and the second radiographic image, and a correction unit configured to correct the second radiographic image using the information about the afterimage.

Abstract: In a vehicle including a generator and a drive motor for traveling that operates with generated electric power of the generator, setting a control mode of a carrier frequency used for PWM control for adjusting the electric power of the generator to either of a basic mode or a diffusion mode; acquiring a noise recognition degree suggestion amount suggesting a vehicle situation correlated with a level of a recognition degree of a vehicle user with respect to noise generated by an operation of the generator; executing the diffusion mode in a case where the recognition degree is estimated to be high based on the noise recognition degree suggestion amount; and executing the basic mode in a case where the recognition degree is estimated to be low.

Abstract: A method for enhancement innate immunity is provided. In one aspect, the present disclosure relates to a method for enhancing an innate immune response of a subject or a cell, the subject or the cell being a subject or a cell having an innate immune response that a gene to be subjected to splicing participates in, and this method includes administering a compound that affects alternative splicing to a subject or a cell, or bringing a compound that affects alternative splicing into contact with the subject or the cell.

Abstract: An electrical steel sheet includes a main surface and an end surface. The electrical steel sheet includes a base material part and an end surface nitrided layer that is provided on the end surface in a manner adjacent to the base material part and that contains nitrogen. The end surface nitrided layer has a surface hardness of 430 HV or more and 1250 HV or less. The end surface contains nitrogen in an amount higher than a nitrogen concentration at the main surface.

Abstract: An image processing apparatus includes a planar distribution obtaining unit configured, using a plurality of radiation images captured using different radiation energies as input images, to obtain, by a sequential approximation solution by an iterative calculation, 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 that is maximized.

Abstract: In a vehicle including a generator and a drive motor for traveling that operates with generated electric power of the generator, setting a control mode of a carrier frequency used for PWM control for adjusting the electric power of the generator to either of a basic mode or a diffusion mode; acquiring a noise recognition degree suggestion amount suggesting a vehicle situation correlated with a level of a recognition degree of a vehicle user with respect to noise generated by an operation of the generator; executing the diffusion mode in a case where the recognition degree is estimated to be high based on the noise recognition degree suggestion amount; and executing the basic mode in a case where the recognition degree is estimated to be low.

Abstract: An imaging control apparatus obtains a plurality of images at different radiation energies by irradiating, with radiation having different radiation energies, a subject in which at least one of a contrast agent, a guide wire, and a stent is inserted, generates an energy subtraction image by performing energy subtraction processing using the plurality of images, and generates a difference image between a mask image that is based on a plurality of energy subtraction images generated in a past and a live image that is based on a current energy subtraction image.

Abstract: An image processing apparatus generates a material characteristic image based on a plurality of radiation images corresponding to a plurality of radiation energies, and estimates at least one of the plurality of radiation energies at a second timing using a plurality of material characteristic images including a material characteristic image generated based on a plurality of radiation images acquired at a first timing and a material characteristic image generated based on a plurality of radiation images acquired at the second timing later than the first timing.

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 includes a pixel array having a plurality of pixels configured to detect radiation, and a controller configured to obtain a radiation generation condition related to a radiation generating apparatus during fluoroscopic imaging, and determine, during the fluoroscopic imaging, timings of a plurality of sampling and holding operations in each of the plurality of pixels in accordance with the radiation generation condition. The timing of at least one sampling and holding operation is a timing in an irradiation period of radiation, and each of the plurality of pixels includes a conversion element configured to convert radiation into an electrical signal, and a sample and hold circuit configured to sample and hold signals from the conversion element multiple times in accordance with the timings, determined by the controller, of the plurality of sampling and holding operations.

Abstract: An image processing apparatus obtains at least three radiation images obtained based on radiation emitted onto an object, and corresponding to at least three types of energy, and separates a predetermined substance having a known attenuation coefficient in the object and a remaining substance other than the predetermined substance in the object, based on the at least three radiation images and calculating an effective atomic number of the remaining substance.

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 includes: an image obtaining unit configured to obtain image data corresponding to incident radiation; and an image processing unit configured to perform first bone density measurement based on image data obtained by the image obtaining unit with a first exposure field and perform second bone density measurement based on image data obtained by the image obtaining unit with a second exposure field narrower than the first exposure field.

Abstract: A medical image processing apparatus comprising: a setting unit configured to set a plurality of candidate regions on a medical image as candidates of a region of interest to be set on the medical image; an analysis unit configured to execute quantitative analysis concerning a composition of an object for each of the plurality of candidate regions; and an output unit configured to output a plurality of analysis results and the plurality of candidate regions in association with each other.

Abstract: A radiation imaging apparatus comprises an image generating unit configured to generate a material characteristic image by using a plurality of radiation images of different radiation energy levels; an evaluation information calculation unit configured to calculate evaluation information which indicates a correlation between a plurality of material characteristic images; and a scattered ray amount estimation unit configured to estimate, based on the evaluation information, an amount of scattered rays included in the plurality of radiation images.

Abstract: An X-ray image processing apparatus comprising: a first obtaining unit configured to obtain a first X-ray image including an object; a second obtaining unit configured to obtain a first measured value associated with an X-ray condition of the first X-ray image, a second X-ray image that does not include the object, and a second measured value associated with an X-ray condition of the second X-ray image; a gain correction unit configured to correct the first X-ray image based on the first measured value, the second X-ray image, and the second measured value; and an image generation unit configured to generate an evaluation image for evaluating a state of the object based on a corrected image that is the first X-ray image corrected by the gain correction unit.

Abstract: An X-ray diagnosis apparatus controls to display information based on an error in an index value evaluating a state of a bone of an object based on at least one of a captured image of the object and an imaging condition which correspond to X-rays with two different types of energies.

Abstract: A radiation imaging system comprises: an image obtaining unit including a radiation detecting unit in which pixels configured to output signals according to a dose of irradiated radiation are arranged in a two-dimensional area, and configured to obtain a radiation image based on the signals; a correction unit configured to correct the radiation image using an input/output characteristic of a pixel, which represents a relationship between the dose of radiation on the pixel and the signal output from the pixel and is obtained using gain data based on a plurality of gain images obtained under different doses; and an updating unit configured to update the gain data using an updating coefficient obtained based on the gain data and a gain image newly obtained by the image obtaining unit.

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: 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.