Canon Kabushiki Kaisha

Hiroyuki Omi

Hitoshi Inoue

Hideaki Miyamoto

Yohei Minatoya

A medical-image processing apparatus according to the present invention includes an obtaining unit configured to obtain a medical image obtained by capturing an image of an examinee and a generation unit configured to input the medical image to a learning model selected based on an operation mode of a sensor at the image capturing to generate a medical image of a higher resolution than a resolution of the medical image.

Medical-image processing apparatus, medical-image processing method, and program for the same

A control apparatus that controls, using automatic exposure control of controlling a radiation generation apparatus by comparing a radiation dose from the radiation generation apparatus with a target dose, radiation imaging using radiation from the radiation generation apparatus, comprises a processing unit that executes image processing on a radiation image obtained by the radiation imaging; and a setting unit that sets, as the target dose used in the automatic exposure control, a dose which is changed in accordance with an image processing parameter for executing the image processing.

Radiation imaging system, control apparatus, and control method

An image processing apparatus for processing a moving image obtained by irradiating an object with radiation, includes: an obtaining unit configured to obtain an amount of change between frames in the moving image; an estimating unit configured to estimate, based on the amount of change, a scattered ray component of the radiation scattered by the object in a frame of the moving image; and a scattered ray reducing unit configured to generate an image by subtracting the scattered ray component from the frame of the moving image.

Image processing apparatus, radiation imaging apparatus, image processing method, and storage medium

Provided is a radiation imaging apparatus including: a radiation detector configured to generate a first radiographic image and a second radiographic image based on a radiation; a scattered radiation reduction unit configured to reduce a scattered radiation component from the first radiographic image and the second radiographic image; a position alignment unit configured to perform position alignment on the first radiographic image and the second radiographic image, using the first radiographic image and the second radiographic image from which the scattered radiation component has been reduced; and a combining unit configured to combine the first radiographic image and the second radiographic image that have been subjected to the position alignment.

Radiation imaging apparatus, radiation imaging system, radiation imaging method, and computer-readable medium therefor

An image processing apparatus includes an image acquisition unit adapted to acquire a radiation image capturing an object, a function acquisition unit adapted to acquire a point spread function from the radiation image, and a determination unit adapted to determine, based on a state of the point spread function, presence/absence of a movement of the object in the radiation image.

Image processing apparatus, control method thereof, and computer-readable storage medium

An image forming apparatus includes a conversion acquisition unit configured to acquire a gradation conversion characteristic based on an X-ray image captured by an X-ray sensor, a storage unit configured to store a pixel value range in which a signal-to-noise ratio is higher than a threshold value according to a characteristic of the X-ray sensor, a determination unit configured to determine whether a pixel value range in which gradation is widened according to the gradation conversion characteristic is included in the stored pixel value range, and a correction unit configured to correct the gradation conversion characteristic depending on a result of determination by the determination unit.

Image processing apparatus for processing x-ray image, radiation imaging system, image processing method, and storage medium

An X-ray image processing apparatus for performing image processing for frames successively obtained by an X-ray sensor acquires a first analysis value and a second analysis value by analyzing each of the successively obtained frames, and calculates, as a first statistic and a second statistic, statistics in a time direction of the first analysis values and the second analysis values of the successively obtained frames. Based on the calculated first and second statistics, the X-ray image processing apparatus determines whether to correct the first analysis value. If it is determined to correct the first analysis value, the X-ray image processing apparatus corrects the first analysis value based on the first statistic.

X-ray image processing apparatus and method, and X-ray imaging apparatus

An image processing apparatus includes a frequency component generation unit, a coefficient acquisition unit, a detection unit, a gain adjustment unit, and a processed image generation unit. The frequency component generation unit is configured to generate a plurality of frequency component images based on an original image. The coefficient acquisition unit is configured to acquire a gain coefficient for gain correction. The detection unit is configured to detect edge information based on the gain coefficient. The gain adjustment unit is configured to adjust a gain of at least one of the plurality of frequency component images based on the gain coefficient and the edge information. The processed image generation unit is configured to generate a processed image based on at least one of the plurality of frequency component images with the gain adjusted by the gain adjustment unit.

Image processing apparatus and image processing method to generate images based on adjusted gain coefficients

An image processing apparatus includes a processing unit configured to generate a processed image by processing a plurality of band limit signals based on a parameter for adjusting the band limit signal, and a control unit configured to control the parameter so that an amplitude response of the processed image with respect to an original image is to be a predetermined value or more.

Image processing apparatus configured to change a parameter determined based on user input so that an amplitude response of a processed image with respect to an original image is to be zero or more and related image processing method

An information processing apparatus includes a determination unit configured to determine whether or not a region having at least one pixel of an image includes a predetermined number of anomalous pixels, and a creation unit configured to create information indicating the determination result for the region.

Information processing apparatus, information processing system, information processing method, and recording medium for storing program

An information processing apparatus that causes display of anomalous pixels of images includes acquisition means for acquiring positions of anomalous pixels in a captured image using a plurality of acquisition schemes for acquiring anomalous pixels; and display control means for causing a display unit to display an image showing the positions of anomalous pixels obtained by the acquisition means so that the relative position between the anomalous pixels in the captured image is maintained and that the display format for each of the positions of anomalous pixels is changed in accordance with the acquisition schemes.

Information processing apparatus for displaying an anomalous pixel

An imaging apparatus includes: a plurality of photoelectric converters each adapted to perform photoelectric conversion in response to receiving light, and output an electrical signal; a holding unit adapted to hold, for each of the plurality of photoelectric converters, a correction value for correcting photoelectric conversion characteristics of the photoelectric converter; and a correction unit adapted to correct each of the electrical signals output by the plurality of photoelectric converters, using the corresponding correction values, wherein the correction unit corrects each of the electrical signals based on the correction values, which have been increased or decreased in accordance with a prescribed pixel arrangement pattern, and the imaging apparatus comprises a determination unit adapted to evaluate correction results that are based on the correction values increased or decreased in accordance with the prescribed pattern, and determine a presence of a correction error in the correction values held in the holding unit.

Imaging apparatus, control method thereof, and program

An image processing apparatus includes an image acquisition unit configured to acquire an image captured according to a predetermined image capturing method, an anomalous pixel acquisition unit configured to acquire an anomalous pixel occurring according to an image capturing method different from the predetermined image capturing method, and a display control unit configured to cause the acquired anomalous pixel to be displayed together with the captured image.

Image processing apparatus for acquiring an image using a specific image capturing method and acquiring an anomalous pixel using a different image capturing method

An information processing apparatus of the present invention includes an acquisition unit configured to acquire a predetermined image and an image after correction which corrected an anomalous pixel of the predetermined image, and a display control unit configured to display an image expanding a partial region of the predetermined image including the anomalous pixel and a pixel used for correcting the anomalous pixel, and the image after correction.

Information processing method and information processing apparatus for displaying anomalous pixel, and radiographic system

An X-ray image processing apparatus includes a calculating unit adapted to calculate the noise amount of a sensor on the basis of a difference value of a plurality of dark images acquired at different timings by the sensor when no X-rays are irradiated, a changing unit adapted to change a predetermined parameter for processing an X-ray image acquired by the sensor when X-rays are irradiated, in order to prevent the noise amount from being superposed on the X-ray image, and an image processing unit adapted to perform image processing on the X-ray image on the basis of the changed parameter.

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Kamakura, Japan

Hiroyuki Omi