Patents by Inventor Yoshihiko Iwase

Yoshihiko Iwase has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8615115
    Abstract: An output device that outputs a schematic view showing a position of a diseased part of a human body, comprises: a read-out unit adapted to read out a plurality of schematic views output from a storage unit adapted to store the schematic views, and a control unit adapted to output the plurality of schematic views read out by the read-out unit to an output unit, wherein the read-out unit selects a schematic view to be read out based on an output format that has been set by a user.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: December 24, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshihiko Iwase
  • Patent number: 8560341
    Abstract: A medical image processing apparatus includes a unit configured to analyze a target medical image a unit configured to register information representing an aptitude of each doctor with respect to interpretation of a specific lesion and a modality used by each doctor, and a unit configured to, when the analysis result includes information associated with a lesion, decide an assigned doctor based on information representing the aptitude of each doctor with respect to interpretation of the specific lesion, and, when the analysis result includes no information associated with a lesion, decide an assigned doctor based on the modality.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: October 15, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshihiko Iwase, Hiroshi Imamura
  • Patent number: 8556424
    Abstract: An image processing apparatus has an acquisition unit which acquires a second tomogram related to a first tomogram of an eye to be examined based on position information of an eye fundus of the eye to be examined according to a predetermined rule; and a display control unit which displays the first tomogram and the second tomogram on a display unit.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: October 15, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshihiko Iwase, Akihiro Katayama
  • Publication number: 20130265543
    Abstract: An image processing apparatus acquires a tomographic image of an eye to be examined. The image processing apparatus quantifies a distortion in a region determined from the tomographic image. The region includes a photoreceptor layer or a retinal pigment epithelium.
    Type: Application
    Filed: February 20, 2013
    Publication date: October 10, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yoshihiko Iwase, Makoto Sato, Akihito Uji, Nagahisa Yoshimura
  • Publication number: 20130258350
    Abstract: An optical coherence tomographic imaging apparatus including a planar image obtaining unit configured to obtain a planar image of a subject based on a return beam from the subject irradiated by the irradiation unit that irradiates the subject with light of a first wavelength band, a tomographic image obtaining unit configured to obtain a tomographic image of the subject based on a beam in which a return beam from the subject irradiated with the laser beam emitted while sweeping a second wavelength range which is longer than the first wavelength band and a reference beam corresponding to the laser beam are combined, and a correction unit configured to correct an optical path length difference generated due to a difference between the first wavelength band and the second wavelength band.
    Type: Application
    Filed: March 27, 2013
    Publication date: October 3, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tomoyuki Makihira, Yoshihiko Iwase, Kazuhide Miyata, Makoto Sato, Kazuro Yamada, Ritsuya Tomita, Daisuke Kibe, Hiroyuki Shinbata
  • Publication number: 20130258282
    Abstract: An ophthalmologic apparatus includes an obtaining unit configured to obtain an anterior segment image of a subject's eye, a tomographic image obtaining unit configured to obtain a tomographic image of an anterior segment of the subject's eye, a calculation unit configured to calculate a thickness of a cornea based on the tomographic image, and a display control unit configured to cause a display unit to display the anterior segment image, a closed curve on the anterior segment image, and a smallest thickness of the cornea among thicknesses of the cornea in a portion where the closed curve lies.
    Type: Application
    Filed: March 26, 2013
    Publication date: October 3, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Atsushi Goto, Kazuhide Miyata, Makoto Sato, Tomoyuki Makihira, Yoshihiko Iwase, Kazuro Yamada, Ritsuya Tomita, Yohei Minatoya, Daisuke Kibe, Hiroyuki Shinbata
  • Publication number: 20130258284
    Abstract: An ophthalmologic apparatus includes an irradiation optical system configured to guide light emitted from a light source to the subject's eye, a control unit configured to sweep a wavelength of light emitted from the light source, an imaging optical system configured to guide to an imaging unit a return beam from the subject's eye of light swept by the control unit, a tomographic image acquisition unit configured to acquire a tomographic image of the subject's eye based on an output from the imaging unit, a fundus image acquisition unit configured to acquire a fundus image of the subject's eye, and a display control unit configured to display the fundus image on a first area in a display unit and display the tomographic image on a second display area which is positioned above or below the first area and is wider in a horizontal direction as compared to the first area.
    Type: Application
    Filed: March 27, 2013
    Publication date: October 3, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tomoyuki Makihira, Kazuhide Miyata, Makoto Sato, Yoshihiko Iwase, Kazuro Yamada, Ritsuya Tomita, Daisuke Kibe, Hiroyuki Shinbata
  • Publication number: 20130258349
    Abstract: An optical coherence tomography imaging apparatus that acquires a tomographic image from interference light between a reference beam and a measuring beam obtained via an object includes a control unit configured to control a difference in optical path length between the reference beam and the measuring beam by a control method according to an imaging target region, and a signal processing unit configured to generate image data of the object based on an electrical signal obtained by detecting the interference light with the difference in optical path length controlled by the control method.
    Type: Application
    Filed: March 26, 2013
    Publication date: October 3, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tomoyuki Makihira, Kazuhide Miyata, Makoto Sato, Yoshihiko Iwase, Kazuro Yamada, Ritsuya Tomita, Yohei Minatoya, Daisuke Kibe, Hiroyuki Shinbata
  • Publication number: 20130258286
    Abstract: An optical coherence tomography imaging apparatus that captures a tomographic image of a subject's eye using interference light based on light from a wavelength-swept light source includes a region acquisition unit configured to acquire an imaging target region, a display control unit configured to display information about the acquired imaging target region, and an imaging unit configured to capture a tomographic image by scanning the imaging target region in the subject's eye using light from the wavelength-swept light source.
    Type: Application
    Filed: March 13, 2013
    Publication date: October 3, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yoshihiko Iwase, Kazuhide Miyata, Makoto Sato, Tomoyuki Makihira, Kazuro Yamada, Ritsuya Tomita, Yohei Minatoya, Daisuke Kibe, Hiroyuki Shinbata
  • Publication number: 20130258283
    Abstract: An ophthalmologic apparatus includes an ophthalmologic apparatus configured to acquire unique information of a subject's eye, an acquisition unit configured to acquire a value indicating brightness of surroundings of the ophthalmologic apparatus, and a recording unit configured to record in a storing unit a value indicating brightness acquired by the acquisition unit, associated with a tomographic image.
    Type: Application
    Filed: March 27, 2013
    Publication date: October 3, 2013
    Inventors: Atsushi Goto, Kazuhide Miyata, Makoto Sato, Tomoyuki Makihira, Yoshihiko Iwase, Kazuro Yamada, Ritsuya Tomita, Daisuke Kibe, Hiroyuki Shinbata
  • Publication number: 20130258285
    Abstract: An image processing apparatus includes an obtaining unit configured to obtain a tomographic image including an optic disc portion and a macula portion of a fundus of a subject's eye, an analysis unit configured to analyze the optic disc portion and the macula portion of the fundus in the tomographic image, and a display control unit configured to display side-by-side, on a display unit, a display pattern indicating a result of analyzing the optic disc portion, and a display pattern indicating a result of analyzing the macula portion.
    Type: Application
    Filed: March 27, 2013
    Publication date: October 3, 2013
    Inventors: Yoshihiko Iwase, Tomoyuki Makihira, Kazuhide Miyata, Makoto Sato, Kazuro Yamada, Ritsuya Tomita, Daisuke Kibe, Hiroyuki Shinbata
  • Publication number: 20130216115
    Abstract: An image processing apparatus includes a calculation unit configured to calculate information indicating similarity among a plurality of tomographic images, and a generation unit configured to generate a tomographic image from the plurality of tomographic images based on the calculated information indicating similarity.
    Type: Application
    Filed: May 30, 2012
    Publication date: August 22, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yoshihiko Iwase, Akihiro Katayama
  • Patent number: 8442286
    Abstract: There is provided a technique for adaptively acquiring, from a tomogram of an eye region, diagnosis information data of the eye region which is used for the diagnosis of a plurality of kinds of diseases, without increasing load on a user. A layer acquisition unit (331) acquires a predetermined layer area from the tomogram of the eye region. A changing unit (332) changes an algorithm for the acquisition of diagnosis information data as information used for the diagnosis of the eye region from the tomogram based on the information data extracted from the layer area. A quantifying unit (336) acquires diagnosis information data from the tomogram based on the changed algorithm.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: May 14, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Imamura, Yoshihiko Iwase, Kiyohide Satoh, Akihiro Katayama
  • Patent number: 8370174
    Abstract: A medical image processing apparatus includes a unit configured to analyze a target medical image a unit configured to register information representing an aptitude of each doctor with respect to interpretation of a specific lesion and a modality used by each doctor, and a unit configured to, when the analysis result includes information associated with a lesion, decide an assigned doctor based on information representing the aptitude of each doctor with respect to interpretation of the specific lesion, and, when the analysis result includes no information associated with a lesion, decide an assigned doctor based on the modality.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: February 5, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshihiko Iwase, Hiroshi Imamura
  • Publication number: 20120288175
    Abstract: In a tomographic image photographing apparatus, a deformation of a volume image is corrected accurately even if an object to be inspected moves when the volume image is acquired. An image processing apparatus acquires a tomographic image of the object to be inspected from combined light beams of return light beams, which is obtained by irradiating the object to be inspected with a plurality of measuring light beams, and corresponding reference light beams. In the image processing apparatus, a photographing unit obtains a tomographic image of a fundus with the plurality of measuring light beams, and a detection unit detects a retina layer from the tomographic image. Based on the detected retina layer, a fundus shape is estimated. Based on the estimated fundus shape, a positional deviation between tomographic images is corrected.
    Type: Application
    Filed: April 27, 2012
    Publication date: November 15, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yoshihiko Iwase, Akihiro Katayama, Daisuke Furukawa, Takeshi Kitamura
  • Publication number: 20120133950
    Abstract: Provided is a tomographic imaging method, which acquires tomographic images of an object to be inspected, based on combined beams respectively acquired by combining reference beams and return beams acquired by irradiating the object to be inspected with a plurality of measuring beams. The tomographic imaging method includes a first step of acquiring the respective combined beams by reflecting information regarding the plurality of measuring beams which is stored in advance and irradiating the object to be inspected with the plurality of measuring beams, and a second step of generating the tomographic images based on the respective combined beams.
    Type: Application
    Filed: November 2, 2011
    Publication date: May 31, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Nobuhito Suehira, Yoshihiko Iwase
  • Patent number: 8144238
    Abstract: In position and orientation measurement based on natural features, erroneous detection of the natural features is prevented when an observation target object is occluded by another object, and registration stability is improved. To this end, an occluding object that can occlude the observation target object is defined, and an occluding region where the occluding object occludes the observation target object is detected in an input captured image. Image features of the observation target object are detected in a region of the captured image other than the detected occluding region. Therefore, the position or orientation of an image pickup apparatus that captured the captured image, or the position or orientation of the observation target object in the captured image are calculated.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: March 27, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Daisuke Kotake, Toshihiro Nakazawa, Masahiro Suzuki, Rika Takemoto, Kiyohide Satoh, Yoshihiko Iwase
  • Publication number: 20120070049
    Abstract: An image processing apparatus, which analyzes retina layers of an eye to be examined, comprising, means for extracting a feature amount, which represents an anatomical feature in the eye to be examined, from a projection image obtained from a tomogram of the retina layers and a fundus image of the eye to be examined, means for determining a type of the anatomical feature based on the feature amount, means for deciding layers to be detected from the retina layers according to the determined type of the anatomical feature, and detecting structures of the decided layers in the tomogram, and means for modifying the structure of the layer included in a region having the anatomical feature of the structures of the layers detected by the layer structure detection means.
    Type: Application
    Filed: May 13, 2010
    Publication date: March 22, 2012
    Applicant: Canon Kabushiki Kaisha
    Inventors: Yoshihiko Iwase, Hiroshi Imamura, Daisuke Furukawa
  • Publication number: 20120070059
    Abstract: An image processing apparatus comprising, boundary extraction means for detecting boundaries of retina layers from a tomogram of an eye to be examined, exudate extraction means for extracting an exudate region from a fundus image of the eye to be examined, registration means for performing registration between the tomogram and the fundus image, and calculating a spatial correspondence between the tomogram and the fundus image, specifying means for specifying a region where an exudate exists in the tomogram using the boundaries of the retina layers, the exudate region, and the spatial correspondence, likelihood calculation means for calculating likelihoods of existence of the exudate in association with the specified region, and tomogram exudate extraction means for extracting an exudate region in the tomogram from the specified region using the likelihoods.
    Type: Application
    Filed: May 13, 2010
    Publication date: March 22, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Daisuke Furukawa, Hiroshi Imamura, Yoshihiko Iwase
  • Publication number: 20120057127
    Abstract: An image processing apparatus has an acquisition unit which acquires a second tomogram related to a first tomogram of an eye to be examined based on position information of an eye fundus of the eye to be examined according to a predetermined rule; and a display control unit which displays the first tomogram and the second tomogram on a display unit.
    Type: Application
    Filed: June 21, 2010
    Publication date: March 8, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yoshihiko Iwase, Akihiro Katayama