Patents by Inventor Akihito Uji

Akihito Uji 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: 11452443
    Abstract: The disclosure herein provides methods, systems, and devices for improving optical coherence tomography machine outputs through multiple enface optical coherence tomography angiography averaging techniques. The embodiments disclosed herein can be utilized in ophthalmology for employing optical coherence tomography (OCT) for in vivo visualization of blood vessels and the flow of blood in an eye of a patient, which is also known generally as optical coherence tomography angiography (OCTA).
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: September 27, 2022
    Assignee: Doheny Eye Institute
    Inventors: SriniVas R. Sadda, Akihito Uji
  • Publication number: 20210204808
    Abstract: The disclosure herein provides methods, systems, and devices for improving optical coherence tomography machine outputs through multiple enface optical coherence tomography angiography averaging techniques. The embodiments disclosed herein can be utilized in ophthalmology for employing optical coherence tomography (OCT) for in vivo visualization of blood vessels and the flow of blood in an eye of a patient, which is also known generally as optical coherence tomography angiography (OCTA).
    Type: Application
    Filed: January 11, 2021
    Publication date: July 8, 2021
    Inventors: SriniVas R. Sadda, Akihito Uji
  • Patent number: 10950204
    Abstract: A diagnosis support apparatus detects a finding and a position, on a diagnosis image as a diagnosis target medical image, which corresponds to the finding from the image, and searches a database storing a plurality of medical images linked to findings and diagnosis names by using the detected finding. The diagnosis support apparatus simultaneously performs or switches between the first display operation of causing a display unit to display the diagnosis image, together with the detected finding and a position on the display which corresponds to the finding and the second display operation of causing the display unit to display the found medical image, together with a diagnosis name associated with the medical image.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: March 16, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masami Kawagishi, Hiroyuki Sekiguchi, Akihito Uji
  • Patent number: 10918274
    Abstract: The disclosure herein provides methods, systems, and devices for improving optical coherence tomography machine outputs through multiple enface optical coherence tomography angiography averaging techniques. The embodiments disclosed herein can be utilized in ophthalmology for employing optical coherence tomography (OCT) for in vivo visualization of blood vessels and the flow of blood in an eye of a patient, which is also known generally as optical coherence tomography angiography (OCTA).
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: February 16, 2021
    Assignee: Doheny Eye Institute
    Inventors: SriniVas R. Sadda, Akihito Uji
  • Publication number: 20200253470
    Abstract: Provided is an optical tomographic imaging apparatus including: a determination unit for determining whether or not an optical member for changing a field angle has been inserted between a scanning unit and an object to be inspected to change a field angle of an acquiring area of a tomographic image; and a switching unit for switching a value of at least one parameter among a control parameter of a control portion for the optical tomographic imaging apparatus, a signal processing parameter of a calculation processing portion, an image processing parameter, and an analysis processing parameter, based on a determination result from the determination unit. Accordingly, a preferred tomographic image of the object is acquired by switching values of various parameters to suitable values even when the optical member for changing a field angle is inserted to change the field angle of the acquiring area of the tomographic image.
    Type: Application
    Filed: April 30, 2020
    Publication date: August 13, 2020
    Inventors: Akihito Uji, Nagahisa Yoshimura, Tomoyuki Makihira, Hirofumi Yoshida
  • Publication number: 20200077887
    Abstract: The disclosure herein provides methods, systems, and devices for improving optical coherence tomography machine outputs through multiple enface optical coherence tomography angiography averaging techniques. The embodiments disclosed herein can be utilized in ophthalmology for employing optical coherence tomography (OCT) for in vivo visualization of blood vessels and the flow of blood in an eye of a patient, which is also known generally as optical coherence tomography angiography (OCTA).
    Type: Application
    Filed: September 18, 2019
    Publication date: March 12, 2020
    Inventors: SriniVas R. Sadda, Akihito Uji
  • Patent number: 10456031
    Abstract: The disclosure herein provides methods, systems, and devices for improving optical coherence tomography machine outputs through multiple enface optical coherence tomography angiography averaging techniques. The embodiments disclosed herein can be utilized in ophthalmology for employing optical coherence tomography (OCT) for in vivo visualization of blood vessels and the flow of blood in an eye of a patient, which is also known generally as optical coherence tomography angiography (OCTA).
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: October 29, 2019
    Assignee: Doheny Eye Institute
    Inventors: SriniVas R. Sadda, Akihito Uji
  • Patent number: 10349826
    Abstract: An image processing apparatus includes a detecting unit configured to execute structural analysis on a tomographic image acquired by an acquiring unit and detect an abnormal portion of the eye; and a display control unit configured to cause a displaying unit to display a finding of the abnormal portion detected by the detecting unit, as a sentence or a word in a manner superimposed on the tomographic image.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: July 16, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihito Uji, Hiroyuki Sekiguchi, Yoshihiko Iwase
  • Patent number: 10251548
    Abstract: The position of the fovea is estimated with high accuracy in a manner such that the thicknesses of a first region including at least a partial region of a region from the internal limiting membrane to the boundary between the external plexiform layer and the external granular layer and a second region including at least a partial region of a region from the boundary to the photoreceptor cell inner segment/outer segment junction are compared with each other, and the position of the fovea is estimated.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: April 9, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Sekiguchi, Akihito Uji, Daisuke Kawase
  • Publication number: 20190000313
    Abstract: The disclosure herein provides methods, systems, and devices for improving optical coherence tomography machine outputs through multiple enface optical coherence tomography angiography averaging techniques. The embodiments disclosed herein can be utilized in ophthalmology for employing optical coherence tomography (OCT) for in vivo visualization of blood vessels and the flow of blood in an eye of a patient, which is also known generally as optical coherence tomography angiography (OCTA).
    Type: Application
    Filed: May 29, 2018
    Publication date: January 3, 2019
    Inventors: SriniVas R. Sadda, Akihito Uji
  • Patent number: 10165942
    Abstract: Focus adjustment is enabled with respect to an object to be inspected even when an optical member for changing a field angle is inserted in order to change the field angle of an acquiring area of a tomographic image, and a clear tomographic image with a focus on the object to be inspected is acquired. In an optical tomographic imaging apparatus, an optical system includes a focus lens configured to focus a measuring light on the object to be inspected. The optical tomographic imaging apparatus includes a unit configured to compensate, when an optical member for changing a field angle is inserted between a scanning unit and the object to be inspected in order to change the field angle of an acquiring area of a tomographic image, a change in a focus position of the focus lens in association with the inserting.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: January 1, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihito Uji, Nagahisa Yoshimura, Hirofumi Yoshida, Tomoyuki Makihira
  • Publication number: 20180353066
    Abstract: An image processing apparatus includes an acquisition unit configured to acquire a tomographic image containing an aqueous humor outflow pathway region that includes at least one of a Schlemm's canal and a collector channel in an anterior ocular segment of a subject's eye, and a generation unit configured to generate an image with the aqueous humor outflow pathway region emphasized or extracted therein based on a luminance value in the tomographic image.
    Type: Application
    Filed: November 25, 2016
    Publication date: December 13, 2018
    Inventors: Akihito Uji, Hiroshi Imamura, Tomoyuki Makihira, Nagahisa Yoshimura
  • Publication number: 20180353063
    Abstract: Provided is an optical tomographic imaging apparatus including: a determination unit for determining whether or not an optical member for changing a field angle has been inserted between a scanning unit and an object to be inspected to change a field angle of an acquiring area of a tomographic image; and a switching unit for switching a value of at least one parameter among a control parameter of a control portion for the optical tomographic imaging apparatus, a signal processing parameter of a calculation processing portion, an image processing parameter, and an analysis processing parameter, based on a determination result from the determination unit. Accordingly, a preferred tomographic image of the object is acquired by switching values of various parameters to suitable values even when the optical member for changing a field angle is inserted to change the field angle of the acquiring area of the tomographic image.
    Type: Application
    Filed: January 7, 2016
    Publication date: December 13, 2018
    Inventors: Akihito Uji, Nagahisa Yoshimura, Tomoyuki Makihira, Hirofumi Yoshida
  • Patent number: 10102621
    Abstract: A high-resolution image suited to the purpose of a doctor or the like is acquired. The present invention relates to an image processing apparatus including an acquisition unit configured to acquire a tomogram of a subject eye; a first extraction unit configured to extract part of the tomogram acquired by the acquisition unit; an estimating unit configured to estimate a high-frequency component based on a result of extraction by the extraction unit; and a combining unit configured to combine the high-frequency component with the tomogram acquired by the acquisition unit.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: October 16, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshihiko Iwase, Makoto Sato, Akihito Uji
  • Patent number: 10098541
    Abstract: An image processing apparatus includes a determination unit configured to determine, as a partial region of a multi-channel fundus image including an optic disk area and a macular area of a subject's eye, one of a region of the multi-channel fundus image which includes the macular area and a region of the multi-channel fundus image which includes the optic disk area, and a generation unit configured to generate an image in which a difference in color of the partial region is enhanced, by applying to the partial region image processing based on a decorrelation stretching method.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: October 16, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihito Uji, Nagahisa Yoshimura, Hiroshi Imamura, Makoto Sato
  • Patent number: 10010249
    Abstract: The disclosure herein provides methods, systems, and devices for improving optical coherence tomography machine outputs through multiple enface optical coherence tomography angiography averaging techniques. The embodiments disclosed herein can be utilized in ophthalmology for employing optical coherence tomography (OCT) for in vivo visualization of blood vessels and the flow of blood in an eye of a patient, which is also known generally as optical coherence tomography angiography (OCTA).
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: July 3, 2018
    Assignee: Doheny Eye Institute
    Inventors: SriniVas R. Sadda, Akihito Uji
  • Publication number: 20180049635
    Abstract: An image processing apparatus includes a detecting unit configured to execute structural analysis on a tomographic image acquired by an acquiring unit and detect an abnormal portion of the eye; and a display control unit configured to cause a displaying unit to display a finding of the abnormal portion detected by the detecting unit, as a sentence or a word in a manner superimposed on the tomographic image.
    Type: Application
    Filed: October 27, 2017
    Publication date: February 22, 2018
    Inventors: Akihito Uji, Hiroyuki Sekiguchi, Yoshihiko Iwase
  • Patent number: 9826896
    Abstract: An image processing apparatus includes a detecting unit configured to execute structural analysis on a tomographic image acquired by an acquiring unit and detect an abnormal portion of the eye; and a display control unit configured to cause a displaying unit to display a finding of the abnormal portion detected by the detecting unit, as a sentence or a word in a manner superimposed on the tomographic image.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: November 28, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihito Uji, Hiroyuki Sekiguchi, Yoshihiko Iwase
  • Publication number: 20170332898
    Abstract: Focus adjustment is enabled with respect to an object to be inspected even when an optical member for changing a field angle is inserted in order to change the field angle of an acquiring area of a tomographic image, and a clear tomographic image with a focus on the object to be inspected is acquired. In an optical tomographic imaging apparatus, an optical system includes a focus lens configured to focus a measuring light on the object to be inspected. The optical tomographic imaging apparatus includes a unit configured to compensate, when an optical member for changing a field angle is inserted between a scanning unit and the object to be inspected in order to change the field angle of an acquiring area of a tomographic image, a change in a focus position of the focus lens in association with the inserting.
    Type: Application
    Filed: January 7, 2016
    Publication date: November 23, 2017
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Akihito Uji, Nagahisa Yoshimura, Hirofumi Yoshida, Tomoyuki Makihira
  • Patent number: 9820650
    Abstract: An image processing apparatus obtains a moving image of an eye area, identifies a region of blood cells in the obtained moving image, and determines the number of determined regions of blood cells.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: November 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihito Uji, Shigeta Arichika, Hiroshi Imamura