Patents by Inventor Riuma Takahashi

Riuma Takahashi 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: 11887288
    Abstract: An image processing apparatus includes display control means for displaying, on display means, a blend image obtained by performing blend processing at a variable transmissivity in accordance with an instruction of an operator using an optical coherence tomography (OCT) image and an OCT angiography (OCTA) image of mutually corresponding regions in a subject that are acquired by an OCT, setting means for setting a region of interest in the displayed blend image, and execution means for executing processing on the set region of interest in at least one image of the OCT image and the OCTA image.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: January 30, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Manabu Yamazoe, Yoshihiko Iwase, Riuma Takahashi, Hiroki Uchida, Ritsuya Tomita
  • Patent number: 11842470
    Abstract: An image processing apparatus includes display control means for displaying, on display means, a blend image obtained by performing blend processing at a variable transmissivity in accordance with an instruction of an operator using an optical coherence tomography (OCT) image and an OCT angiography (OCTA) image of mutually corresponding regions in a subject that are acquired by an OCT, setting means for setting a region of interest in the displayed blend image, and execution means for executing processing on the set region of interest in at least one image of the OCT image and the OCTA image.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: December 12, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Manabu Yamazoe, Yoshihiko Iwase, Riuma Takahashi, Hiroki Uchida, Ritsuya Tomita
  • Publication number: 20220110521
    Abstract: An apparatus includes an obtaining unit configured to obtain, using an optical coherence tomography, an analysis map for a disk and an analysis map for a macular area, which are analysis results of three-dimensional data obtained by capturing an image of a region of a fundus of a subject's eye that includes the disk and the macular area, and a control unit configured to cause a display unit to display side by side a two-dimensional image of the region including the disk and the macular area, the analysis map for the optic disk, and the analysis map for the macular area.
    Type: Application
    Filed: September 30, 2021
    Publication date: April 14, 2022
    Inventors: Yoshihiko Iwase, Osamu Sagano, Hiroki Uchida, Juun Horie, Riuma Takahashi
  • Publication number: 20220005584
    Abstract: An information processing apparatus includes a storage unit configured to store information individually set for each of a plurality of different types of imaging as transmission settings for a plurality of pieces of imaging data obtained by the plurality of different types of imaging, and a transmission unit configured to transmit imaging data on a test subject based on the stored information, the imaging data being obtained by any one of the plurality of different types of imaging.
    Type: Application
    Filed: September 21, 2021
    Publication date: January 6, 2022
    Inventors: Riuma Takahashi, Ritsuya Tomita
  • Publication number: 20210398259
    Abstract: An image processing apparatus includes display control means for displaying, on display means, a blend image obtained by performing blend processing at a variable transmissivity in accordance with an instruction of an operator using an optical coherence tomography (OCT) image and an OCT angiography (OCTA) image of mutually corresponding regions in a subject that are acquired by an OCT, setting means for setting a region of interest in the displayed blend image, and execution means for executing processing on the set region of interest in at least one image of the OCT image and the OCTA image.
    Type: Application
    Filed: September 7, 2021
    Publication date: December 23, 2021
    Inventors: Manabu Yamazoe, Yoshihiko Iwase, Riuma Takahashi, Hiroki Uchida, Ritsuya Tomita
  • Patent number: 10888220
    Abstract: Provided is an information processing apparatus including: a first acquisition unit configured to acquire a plurality of pieces of tomographic data based on measurement light controlled to scan the same position of a fundus; a second acquisition unit configured to acquire a correction coefficient by performing an arithmetic operation on a first approximate parameter obtained by transforming, in a first dimension, a parameter of the tomographic data to be used for calculating a motion contrast, and a second approximate parameter obtained by transforming the parameter in a second dimension smaller than the first dimension; a correction unit configured to correct a parameter of at least one piece of tomographic data through use of the correction coefficient; and a generation unit configured to generate a motion contrast image through use of the at least one piece of tomographic data corrected by the correction unit.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: January 12, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Riuma Takahashi, Hiroshi Imamura, Hiroki Uchida, Marek Rozanski, Tomasz Dziubak, Tomasz Bajraszewski
  • Publication number: 20190274538
    Abstract: An image processing device is provided and includes an acquiring unit configured to acquire combined images associated with examination dates, each of combined images being obtained by using motion contrast images of a portion of an eye portion, and a display control unit configured to cause a display unit to display the combined images in time series and to cause the display unit to display a plurality of pieces of information regarding the examination dates in time series, the plurality of pieces of information being obtained by using the combined images.
    Type: Application
    Filed: February 28, 2019
    Publication date: September 12, 2019
    Inventors: Hiroshi Imamura, Hiroki Uchida, Riuma Takahashi
  • Patent number: 10289907
    Abstract: Provided is an image processing apparatus, including: an acquisition unit configured to acquire information on a layer boundary in tomographic structure of a current subject to be inspected; a determination unit configured to determine a depth range relating to a current en-face image of the subject to be inspected based on information indicating a depth range relating to a past en-face image of the subject to be inspected and the information on the layer boundary; and a generation unit configured to generate the current en-face image through use of data within the depth range relating to the current en-face image among pieces of three-dimensional data acquired for the current subject to be inspected.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: May 14, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Riuma Takahashi
  • Publication number: 20180263485
    Abstract: Provided is an information processing apparatus including: a first acquisition unit configured to acquire a plurality of pieces of tomographic data based on measurement light controlled to scan the same position of a fundus; a second acquisition unit configured to acquire a correction coefficient by performing an arithmetic operation on a first approximate parameter obtained by transforming, in a first dimension, a parameter of the tomographic data to be used for calculating a motion contrast, and a second approximate parameter obtained by transforming the parameter in a second dimension smaller than the first dimension; a correction unit configured to correct a parameter of at least one piece of tomographic data through use of the correction coefficient; and a generation unit configured to generate a motion contrast image through use of the at least one piece of tomographic data corrected by the correction unit.
    Type: Application
    Filed: March 13, 2018
    Publication date: September 20, 2018
    Inventors: Riuma Takahashi, Hiroshi Imamura, Hiroki Uchida, Marek Rozanski, Tomasz Dziubak, Tomasz Bajraszewski
  • Publication number: 20180012058
    Abstract: Provided is an image processing apparatus, including: an acquisition unit configured to acquire information on a layer boundary in tomographic structure of a current subject to be inspected; a determination unit configured to determine a depth range relating to a current en-face image of the subject to be inspected based on information indicating a depth range relating to a past en-face image of the subject to be inspected and the information on the layer boundary; and a generation unit configured to generate the current en-face image through use of data within the depth range relating to the current en-face image among pieces of three-dimensional data acquired for the current subject to be inspected.
    Type: Application
    Filed: June 26, 2017
    Publication date: January 11, 2018
    Inventor: Riuma Takahashi