Canon Kabushiki Kaisha

The University of Tokyo

Canon Medical Systems Corporation

Ryo Ishikawa

Kiyohide Satoh

Takaaki Endo

Kazuhiro Miyasa

Toru Tanaka

Takuya Ishida

Hiroyuki Yamamoto

Yoshio Iizuka

Akihiro Katayama

Gakuto Aoyama

Katsushi Ikeuchi

Bo Zheng

Kenji Morita

Shinji Uchiyama

Hiroyuki Shinbata

Yukio Sakagawa

Tatsuya Kimoto

Yasufumi Takama

Itaru Otomaru

Keita Nakagomi

Yoshitaka Minami

Hiroshi Moriya

Takeshi Ohishi

Hiroshi Yoshibayashi

Yonggi Sun

Jun Takamatsu

Satoh Kiyohide

An information processing apparatus comprising: an extraction unit configured to extract a predetermined region of an anatomical part from an examination image of a subject; a first feature amount acquisition unit configured to acquire a first feature amount of the predetermined region related to a movement of the anatomical part; a second feature amount acquisition unit configured to acquire a second feature amount of the predetermined region related to the movement; a division unit configured to divide the predetermined region; and an integration unit configured to integrate the first feature amount and the second feature amount based on a result of division by the division unit.

Information processing apparatus, information processing method, and non-transitory storage medium for processing image features of anatomical parts from examination images of a subject

An image processing apparatus according to the present invention calculates, even in a case where a region of a part as an observation target included in an image capturing range is different between a plurality of medical images in different time phases, a degree of slippage of the region of the part as the observation target with high accuracy.

Image processing apparatus, image processing method, and storage medium

An image processing apparatus acquires a first pixel size and a second pixel size that are pixel sizes in a predetermined axis direction of a first image and a second image captured at different points in time, respectively, determines whether the first pixel size and second pixel size differ from each other, and decides, if the first pixel size differs from the second pixel size, a size in a predetermined axis direction of a comparison area based on a larger one of the first pixel size and the second pixel size. The comparison area includes a plurality of gray levels, and is compared to a gray level of a position of interest in one of the first and second image, and the comparison area existing in the other of the first and second image, different from the one image.

An image processing apparatus includes search area calculation means for calculating a search area size on the basis of a pixel size of at least one image among a first image and a second image, position obtaining means for obtaining a position of interest on the first image and a correspondence position on the second image corresponding to the position of interest, search area setting means for setting a search area made up of the search area size in a surrounding of the correspondence position on the second image, and difference means for deciding a difference value corresponding to the position of interest on a basis of a density value of the position of interest on the first image and density values of a plurality of positions in the search area on the second image.

Image processing apparatus, image processing method, and program

An apparatus that can obtain a subtraction image efficiently is provided. An image processing apparatus obtains a target image constituted by a set of voxels arranged in a discretized manner; sets a search area in the target image; and obtains, in a partial area included in the search area, on the basis of at least one of a voxel value included in the partial area and an interpolated value obtained by interpolation of a voxel of the target image, at least one of a maximum and a minimum of a voxel value and an interpolated value within the search area.

Image processing apparatus, image processing method, image processing system, and storage medium

An apparatus acquires a first converted image by converting resolution of a first image of a subject into first resolution, acquires a second converted image by converting resolution of a second image into the first resolution, acquires first deformation information for executing image registration between the first converted image and the second converted image with the first resolution, and generates a subtraction image with the first resolution based on the first deformation information, the subtraction image showing a difference between the first converted image and the second converted image, or generates a second subtraction image based on second deformation information obtained in such a manner that resolution of the first deformation information is converted into the resolution of the first image, the second subtraction image showing a difference between the first image and the second image.

An information processing apparatus includes an image acquisition unit, a correspondence relation acquisition unit, an image transformation unit, a change calculation unit, and a statistics amount calculation unit. The image acquisition unit acquires a first image and a second image. The correspondence relation acquisition unit acquires a spatial correspondence relation between the first and the second images. The image transformation unit acquires a transformed image by transforming the second image to substantially coincide with the first image based on the spatial correspondence relation. The change calculation unit calculates a volume or area change between the transformed image and the second image based on the spatial correspondence relation. The statistics amount calculation unit calculates a statistics amount for pixel values of the transformed image based on the volume or area change.

Information processing apparatus and information processing method

An image processing apparatus configured to acquire first registration information being registration information between a first image of interest, which is the first frame image in the frame image pair, and the first reference image; to acquire second registration information being registration information between a second image of interest, which is the second frame image in the frame image pair, and the second reference image; to acquire reference registration information being registration information between the first reference image and the second reference image; and to acquire third registration information being registration information between the first image of interest and the second image of interest, based on the first registration information, the second registration information and the reference registration information.

Image processing apparatus, image processing method and non-transitory computer-readable medium

An image processing apparatus comprises a corresponding point obtaining unit configured to obtain corresponding points that are feature points of an object associated between a first image and a second image; a first deformation obtaining unit configured to obtain first deformation that is based on the corresponding points; a second deformation obtaining unit configured to obtain second deformation that is performed between the first image and the second image, and in which a degree of coincidence of corresponding points is lower than the first deformation; and a combining unit configured to combine the first deformation and the second deformation, regarding positions in at least one image of the first Image and the second image, based on distances between the corresponding points and the positions.

Image processing apparatus, control method of image processing apparatus, and storage medium

An information processing apparatus includes a first selection unit that selects a second image to be compared with a first image from a plurality of candidate images, a setting unit, an overlap range calculation unit, an evaluation value calculation unit, and a second selection unit. The setting unit sets a plurality of combinations including two or more candidate images from among the plurality of candidate images. The overlap range calculation unit calculates an overlap range between the first image and each of the plurality of combinations. The evaluation value calculation unit calculates an evaluation value of each of the plurality of combinations based on the calculated overlap range. The second selection unit selects at least one combination from the plurality of combinations based on the evaluation value. The first selection unit selects the two or more candidate images included in the selected combination as the second image.

Information processing apparatus, information processing method, and information processing system

An information processing apparatus includes acquisition units, calculation units, and a matching unit. The acquisition units acquire a position of a first reference point as a reference point, and a position of a first surface point as a point, on a surface of a target object in a first body posture. The acquisition units acquire a position of a second reference point as the reference point, and a position of a second surface point, on the surface of the target object in a second body posture. A distance between the first reference point position and the first surface point position is calculated as a first distance. A distance between the second reference point position and the second surface point position is calculated as a second distance. The matching unit matches the first and second surface points based on a relationship between the first and second distances.

Information processing apparatus, method, and program for matching target object position between the prone and supine positions obtained by MRI and ultrasound

An image processing apparatus in which identification of a corresponding target point between images is easily performed, and physically appropriate registration can be performed by using the identification is provided. The image processing apparatus obtains coordinate transformation for respectively transforming a first image and a second image obtained by imaging an object to a first transformed image and a second transformed image, obtains correspondence information that serves as information of a corresponding point included in each of the first transformed image and the second transformed image, respectively transforms the correspondence information to positions in the first image and the second image, and obtains deformation transformation for performing registration of the first image and the second image on the basis of information of the corresponding points in the first image and the second image.

Image processing apparatus, image processing method, image processing system, and program

An ultrasonic imaging support apparatus for supporting imaging performed by an ultrasonic probe that acquires an ultrasonic image of a subject includes a specification unit configured to specify a position inside the subject in a three dimensional image, an identification unit configured to identify a position on a body surface of the subject based on the specified position, and a display control unit configured to display a position where the ultrasonic image acquired by the ultrasonic probe is captured and the identified position on a display unit.

Information processing apparatus, ultrasonic imaging apparatus, and information processing method

A photoacoustic apparatus is used which includes: a receiving element receiving acoustic wave from an object; a processor generating image data inside of the object; a changer changing irradiation positions of light on the object; and a wide-area image acquirer of the object, wherein the processor generates, for the irradiation positions, a local-area image of the object corresponding to the irradiation position, and based on a comparison between a plurality of local-area images obtained for the irradiation positions and a comparison between the plurality of local-area images and the wide-area image, integrates the plurality of local-area images.

Photoacoustic apparatus and image processing method

An information processing apparatus includes a first acquisition unit configured to acquire a plurality of positions, in a three-dimensional image of a subject, obtained based on a sternum of the subject, a second acquisition unit configured to acquire a plurality of positions, in the subject, obtained based on the sternum of the subject, and a calculation unit configured to calculate a correspondence relationship in position between the subject and the three-dimensional image based on the plurality of positions acquired by the first acquisition unit and the plurality of positions acquired by the second acquisition unit.

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Kawasaki, Japan

Ryo Ishikawa