Canon Kabushiki Kaisha

Haruki Iwai

Katsuro Takenaka

Takeshi Noda

Daisuke Sato

Akiya Nakayama

Sota Torii

Hideaki Miyamoto

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.

Radiation imaging apparatus, radiation imaging method, and non-transitory computer-readable storage medium

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.

X-ray image processing apparatus, x-ray diagnosis apparatus, method, and storage medium

An image processing apparatus for determining a radiation field of radiation from a radiation image comprises: a prediction unit that predicts, based on prior information, a degree that each position of the radiation image becomes a predetermined portion of the radiation field and generating a prediction result representing a distribution of the predicted degrees; an analysis unit that analyzes the radiation image to determines the degree that each position of the radiation image becomes the predetermined portion of the radiation field and generating an analysis result representing the distribution of the predicted degrees; and a recognition unit that decides the predetermined portion of the radiation field based on a combining result obtained by combining the prediction result and the analysis result.

Image processing apparatus, image processing method, and computer-readable storage medium for determining a radiation field of radiation from a radiation image

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Tochigi, Japan

Haruki Iwai