Canon Kabushiki Kaisha

The University of Tokyo

Canon Medical Systems Corporation

Kiyohide Satoh

Takaaki Endo

Shinji Uchiyama

Ryo Ishikawa

Kazuhiro Miyasa

Yoshio Iizuka

Daisuke Kotake

Kazuki Takemoto

Mahoro Anabuki

Masami Kawagishi

Gakuto Aoyama

Masahiro Suzuki

Akihiro Katayama

Yoshihiko Iwase

Toshihiro Kobayashi

Kenji Morita

Hiroshi Imamura

Takeshi Kubo

Hiroyuki Yamamoto

Kazuhiko Kobayashi

Toru Maeda

Yasufumi Takama

Toshikazu Ohshima

Koji Fujimoto

Yasufumi Asao

Akira Yoshino

Koichiro Wanda

Hiroki Yonezawa

Daisuke Kibe

Toru Kikuchi

Takuya Ishida

Shinichi Aratani

Itaru Otomaru

Toru Tanaka

Rika Takemoto

Yuta Nakano

Koji Sakai

Ryo Sakamoto

Masahiro Yakami

Naoki Matsuki

Daisuke Eto

Tsuneo Yoshikawa

Takayuki Ueno

Tomoyasu Nakatsuru

Koichi Ishizu

Yasuyoshi Yokokohji

Eiji Suzuki

Katsushi Ikeuchi

Keita Nakagomi

Hidehiko Morinaga

Fukashi Yamazaki

Yohei Hashizume

Sonoko Maeda

Yoshitaka Minami

Maiko Sato

Toshihiro Nakazawa

Bo Zheng

Yukari Nakashoji

Rika Tanaka

Neesha Subramaniam

Yonggi Sun

Hiroshi Yoshibayashi

An image processing apparatus comprises: a model obtaining unit configured to obtain a learned model that has learned, based on a position of a predetermined feature point, a contour of a target in an image obtained by capturing the target; an image obtaining unit configured to obtain an input image; a position obtaining unit configured to obtain a position of an input point input on the input image by a user; a normalization unit configured to obtain a normalized image generated by coordinate-transforming the input image such that the position of the input point matches the position of the predetermined feature point in the learned model; and an estimation unit configured to estimate the contour of the target in the input image using the normalized image and the learned model.

Image processing apparatus, medical image capturing apparatus, image processing method, and storage medium

An image processing apparatus that generates a three-dimensional image as a subtraction image from a first medical image and a second medical image which are three-dimensional images obtained by imaging a subject, the image processing apparatus includes an acquisition unit configured to acquire the first medical image and the second medical image, a determination unit configured to determine a resolution of the subtraction image, and, a subtraction image generation unit configured to generate the subtraction image having the resolution determined by the determination unit, wherein the determination unit determines a resolution of at least one axial direction among three axial directions configuring the resolution of the subtraction image, based on a resolution of the first medical image and a predetermined first resolution.

Image processing apparatus for generating a highly visible three-dimensional image from two medical images

An information processing apparatus is configured to acquire case information containing first information that is information on a feature of a case of a patient and that is obtained as a result of a diagnosis of the patient and determine, based on the first information that is the information contained in the case information, whether the case information is used as training data for machine training.

Information processing apparatus, information processing system, information processing method, and non-transitory computer-readable storage medium for computer-aided diagnosis

An information processing apparatus according includes an acquisition unit configured to acquire an image, an extraction unit configured to extract part of regions included in the image as a target region, a determination unit configured to determine a variation in density value of a pixel included in the target region such that an absolute value of the variation in density value of the pixel included in the target region is larger than an absolute value of a variation in density value of a pixel included in a region other than the target region, a generation unit configured to generate a training image in which a density value of the pixel included in the target region is changed based on the variation determined by the determination unit, and a training unit configured to train a identifier using the training image.

Information processing apparatus, information processing method, and storage medium

Diagnosis is inferred by using at least one of a plurality of inferencers configured to infer diagnosis from a medical image and by using a medical image as an input into the at least one of the plurality of inferencers, and the inferred diagnosis is represented.

Diagnosis assistance apparatus, and information processing method

From a plurality of medical images in time phases, a target site is extracted from at least one medical image, a reference point is set on each of a target-site side, and a periphery side of the target site which are on across from each other over an outline of the extracted target site, and movement information for the reference points is calculated.

Medical image processing apparatus and method

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.

Image processing apparatus, image processing method, and storage medium

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 image processing apparatus includes an acquisition unit configured to acquire a first medical image and a second medical image that are three-dimensional images obtained by imaging a subject, a determination unit configured to determine a first resolution based on a resolution of the first medical image and determine a second resolution based on a predetermined resolution, a first generation unit configured to generate a first subtraction image having the first resolution by performing a first subtraction process between the first and second medical images, and generate a second subtraction image having the second resolution by performing a second subtraction process between the first and second medical images, and a second generation unit configured to generate a projection image using the second subtraction image.

An information processing apparatus includes an image obtaining unit configured to obtain a first inspection image having first supplemental information and a second inspection image having second supplemental information, a difference image obtaining unit configured to obtain a difference image generated using the first and second inspection images, a difference information obtaining unit configured to obtain difference information on a difference between the first supplemental information and the second supplemental information, and an association unit configured to associate the difference information with the difference image.

Information processing apparatus and method for controlling the same to generate a difference image from first and second inspection images

Medical image processing apparatus, and method

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.

Image processing apparatus, image processing method, image processing system, and storage 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 image processing apparatus configured to calculate deformation between a first image and a second image includes a calculation order determination unit that determines calculation order of a plurality of partial regions into which the second image is divided, a calculation unit that calculates the deformation between the first image and the second image for each of the plurality of partial regions in the determined calculation order of the plurality of partial regions, a deformed image generation unit that generates a deformed image by deforming the first image based on the calculated deformation of the plurality of partial regions, and a display control unit that causes a display unit to display the generated deformed image.

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Kawasaki, Japan

Kiyohide Satoh