Abstract: An object of the present disclosure is to provide a golf ball having good shot feeling and excellent durability and not having lowered resilience even if a hard cover material is used. The present disclosure provides a golf ball comprising a spherical core, and a cover disposed outside the spherical core and composed of one or more layers, wherein at least one cover layer contains (A) a base resin, and (B) at least one member selected from the group consisting of a polyrotaxane, a polyethylene oxide, a polypropylene oxide, a polycaprolactone and a liquid polymer, and Sa×Spc?100 wherein Sa (?m) is an arithmetic mean roughness of a surface of a cut plane of the cover, and Spc (mm?1) is an arithmetic mean curvature of a summit of the surface of the cut plane of the cover.

Abstract: An image generation unit generates a contrast-reduced image in which contrast in a region other than a soft part is reduced in a radiographic image indicating a subject including the soft part and a bone part. A body thickness derivation unit derives the body thickness of the subject based on the contrast-reduced image.

Abstract: An imaging condition acquisition unit acquires an imaging condition in a case in which a subject is imaged in a state in which an object is interposed between the subject and a radiation detector. A body thickness derivation unit derives a body thickness distribution of the subject based on the radiation image and the imaging condition. A characteristic acquisition unit acquires a radiation characteristic of the object in accordance with the body thickness distribution. A ray distribution unit derives a primary ray distribution and a scattered ray distribution of the radiation detected by the radiation detector by using the imaging condition, the body thickness distribution, and the radiation characteristic.

Abstract: At least one standard image representing a standard object having different thicknesses, the at least one standard image being obtained by imaging the standard object by radiation in a state in which an object is interposed between the standard object and a radiation detector is acquired, a relationship between the thickness of the standard object and a radiation attenuation coefficient of the standard object, which corresponds to an energy characteristic of the radiation, the relationship reflecting an influence of beam hardening by the standard object and the object, is derived, a primary ray component corresponding to the thickness of the standard object included in the standard image is derived based on the relationship between the thickness of the standard object and the radiation attenuation coefficient of the standard object, a scattered ray component corresponding to the thickness of the standard object included in the standard image is derived based on a difference between the standard image and the

Abstract: A processor acquires a first radiation image and a second radiation image, which are acquired by imaging a subject with radiation having different energy distributions, derives a body thickness of the subject based on at least one of the first radiation image or the second radiation image, specifies a soft region of the subject in the first radiation image and the second radiation image, derives a first attenuation coefficient and a second attenuation coefficient, which correspond to the body thickness in the soft region, for each of the first radiation image and the second radiation image, and derives an attenuation ratio, which is a ratio according to the body thickness between the first attenuation coefficient and the second attenuation coefficient, as an indicator representing a quality of the radiation.

Abstract: A subject information acquisition unit calculates a bone mineral density in the bone region and a muscle mass in the soft region for each pixel on the basis of a radiographic image. A statistical value calculation unit calculates a statistical value related to the subject on the basis of the bone mineral density and the muscle mass. An evaluation value calculation unit calculates the fracture risk evaluation value for evaluating the fracture risk of the subject on the basis of the statistical value.

Abstract: A processor acquires at least one radiographic image of a subject including a plurality of compositions and acquires a composition ratio of the subject. The processor sets an attenuation coefficient of radiation used in a case in which the radiographic image is acquired for each pixel of the radiographic image according to the composition ratio. The processor performs image processing on the radiographic image using the set attenuation coefficient.

Abstract: A processor acquires two radiation images having a contrast based on a first characteristic related to a first imaging apparatus, derives a body thickness distribution of a subject based on at least one of the two radiation images, removes a scattered ray component from the two radiation images based on the first characteristic, derives a first bone part image and a first soft part image representing a bone tissue and a soft tissue of the subject, respectively, from the two radiation images, converts the first bone part image and the first soft part image into a second bone part image and a second soft part image having a contrast based on a second characteristic related to a second imaging apparatus, based on the first characteristic, the second characteristic, and the body thickness distribution, and derives a processed radiation image having the contrast based on the second characteristic by adding the second bone part image and the second soft part image.

Abstract: An image acquisition unit acquires two radiographic images based on radiations which are transmitted through a subject containing a plurality of compositions and have energy distributions different from each other. A body thickness derivation unit derives, as a first body thickness and a second body thickness, body thicknesses of the subject for pixels of the two radiographic images. A composition ratio derivation unit derives composition ratios of the subject for the pixels of the radiographic images based on the first body thickness and the second body thickness.

Abstract: By subjecting a neural network to machine learning using teacher data consisting of learning data and correct answer data, a trained neural network that outputs at least one of a composition of a target subject or a body thickness of the target subject in a case in which at least one target radiation image of the target subject is input is constructed. The learning data includes a standard image acquired by irradiating a standard object of which a thickness and a material are known with radiation in a state in which an object is interposed between the standard object and a radiation detector, an energy characteristic of the radiation, a thickness and a material of the object, and an imaging condition in a case in which the standard image is acquired.

Abstract: A solid-state imaging device includes a pixel having a photoelectric conversion element which generates a charge in response to incident light, a first transfer gate which transfers the charge from the photoelectric conversion element to a charge holding section, and a second transfer gate which transfers the charge from the charge holding section to a floating diffusion. The first transfer gate includes a trench gate structure having at least two trench gate sections embedded in a depth direction of a semiconductor substrate, and the charge holding section includes a semiconductor region positioned between adjacent trench gate sections.

Abstract: A processor acquires a positioning image acquired by imaging a subject by a radiography apparatus, specifies a standard position in the positioning image and a reference position in a target structure included in the subject in the positioning image, and derives a relative movement amount of the top plate, the radiation source, and the radiation detector based on a deviation amount of the reference position from the standard position.

Abstract: At least one standard image representing a standard object having different thicknesses, the at least one standard image being obtained by imaging the standard object by radiation in a state in which an object is interposed between the standard object and a radiation detector is acquired, a relationship between the thickness of the standard object and a radiation attenuation coefficient of the standard object, which corresponds to an energy characteristic of the radiation, the relationship reflecting an influence of beam hardening by the standard object and the object, is derived, a primary ray component corresponding to the thickness of the standard object included in the standard image is derived based on the relationship between the thickness of the standard object and the radiation attenuation coefficient of the standard object, a scattered ray component corresponding to the thickness of the standard object included in the standard image is derived based on a difference between the standard image and the

Abstract: An imaging condition acquisition unit acquires an imaging condition in a case in which a subject is imaged in a state in which an object is interposed between the subject and a radiation detector. A body thickness derivation unit derives a body thickness distribution of the subject based on the radiation image and the imaging condition. A characteristic acquisition unit acquires a radiation characteristic of the object in accordance with the body thickness distribution. A ray distribution unit derives a primary ray distribution and a scattered ray distribution of the radiation detected by the radiation detector by using the imaging condition, the body thickness distribution, and the radiation characteristic.

Abstract: A motor organ disease prediction device includes at least one processor, in which the processor derives a bone mineral density of a target bone among bones included in a subject including a bone part and a soft part, a muscle mass around the target bone, shape information representing a shape of the target bone, and shape information representing a shape of a bone adjacent to the target bone from a first radiation image and a second radiation image acquired by imaging the subject by radiation having different energy distributions. The processor derives a probability of occurrence of a motor organ disease relating to the target bone from the bone mineral density of the target bone, the muscle mass around the target bone, the shape information of the target bone, and the shape information of the bone adjacent to the target bone.

Abstract: An image acquisition unit acquires two radiographic images based on radiation which has different energy distributions and has been transmitted through a subject including a soft part and a bone part.

Abstract: An image acquisition unit acquires two radiographic images based on radiation which has different energy distributions and has been transmitted through a subject including a soft part and a bone part. A subtraction unit performs weighting subtraction using a predetermined initial weighting coefficient between corresponding pixels of the two radiographic images to derive a soft part image obtained by extracting the soft part of the subject and a bone part image obtained by extracting the bone part of the subject. A weighting coefficient derivation unit derives a new weighting coefficient on the basis of a pixel value of the bone part included in the bone part image. The subtraction unit performs the weighting subtraction on the two radiographic images using the new weighting coefficient to derive a new soft part image and a new bone part image.

Abstract: A solid-state imaging device includes a pixel having a photoelectric conversion element which generates a charge in response to incident light, a first transfer gate which transfers the charge from the photoelectric conversion element to a charge holding section, and a second transfer gate which transfers the charge from the charge holding section to a floating diffusion. The first transfer gate includes a trench gate structure having at least two trench gate sections embedded in a depth direction of a semiconductor substrate, and the charge holding section includes a semiconductor region positioned between adjacent trench gate sections.

Abstract: In order to assist the interpretation of a radiation image in which an abnormality appears, the invention provides a diagnostic auxiliary image generation apparatus, a diagnostic auxiliary image generation method, and a non-transitory computer readable recording medium recorded with a diagnostic auxiliary image generation program for generating a diagnostic auxiliary image. In a case where a past radiation image is present, a temporal difference image generation unit generates and sets a temporal difference image as a diagnostic auxiliary image only in a case where the projected images of a diagnostic target radiation image and the past radiation image match each other. In a case where a past radiation image is not present or the projected images of a diagnostic target radiation image and a past radiation image do not match each other, a bone-suppressed image generation unit generates and sets a bone-suppressed image as a diagnostic auxiliary image.

Abstract: A processor acquires at least one radiographic image of a subject including a plurality of compositions and acquires a composition ratio of the subject. The processor sets an attenuation coefficient of radiation used in a case in which the radiographic image is acquired for each pixel of the radiographic image according to the composition ratio. The processor performs image processing on the radiographic image using the set attenuation coefficient.