Patents by Inventor Michiyuki Saito

Michiyuki Saito 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).

  • FUNDUS IMAGE PROCESSING DEVICE AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM STORING COMPUTER-READABLE INSTRUCTIONS
    Publication number: 20220284577
    Abstract: A processor of a fundus image processing device acquires a fundus image 50 photographed by a fundus image photographing device. The processor acquires blood vessel images 60A and 60B that indicate at least one of an arteriole and a venule in the fundus image 50 by inputting the fundus image 50 into a mathematical model trained by a machine learning algorithm. The processor acquires a blood vessel area that is an area of at least one of the arteriole and the venule in the whole of the blood vessel images 60A and 60B.
    Type: Application
    Filed: May 27, 2022
    Publication date: September 8, 2022
    Applicants: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, NIDEK CO., LTD.
    Inventors: Michiyuki SAITO, Kousuke NODA, Kanae FUKUTSU, Susumu ISHIDA, Ryosuke SHIBA, Yoshiki KUMAGAI
  • Fundus image processing apparatus, fundus image processing method, and recording medium
    Patent number: 9098743
    Abstract: A fundus image processing apparatus that processes a fundus image of an examinee's eye, the fundus image processing apparatus includes: a processor; and a memory storing computer readable instructions, when executed by the processor, causing the fundus image processing apparatus to: identify the optic disc included in the fundus image; identify a blood vessel included in the fundus image; calculate an upper diameter ratio which is a diameter ratio of those of the identified blood vessels that are positioned in a region above a height of the optic disc; calculate a lower diameter ratio which is a diameter ratio of those of the identified blood vessels that are positioned in a region under the height of the optic disc; and calculate an arteriovenous diameter ratio in the fundus of the examinee's eye based on the upper diameter ratio and the lower diameter ratio.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: August 4, 2015
    Assignees: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, NIDEK CO., LTD.
    Inventors: Susumu Ishida, Kousuke Noda, Michiyuki Saito, Masahiko Kobayashi, Yasuhiro Hoshikawa
  • FUNDUS IMAGE PROCESSING APPARATUS, FUNDUS IMAGE PROCESSING METHOD, AND RECORDING MEDIUM
    Publication number: 20140294235
    Abstract: A fundus image processing apparatus that processes a fundus image of an examinee's eye, the fundus image processing apparatus includes: a processor; and a memory storing computer readable instructions, when executed by the processor, causing the fundus image processing apparatus to: identify the optic disc included in the fundus image; identify a blood vessel included in the fundus image; calculate an upper diameter ratio which is a diameter ratio of those of the identified blood vessels that are positioned in a region above a height of the optic disc; calculate a lower diameter ratio which is a diameter ratio of those of the identified blood vessels that are positioned in a region under the height of the optic disc; and calculate an arteriovenous diameter ratio in the fundus of the examinee's eye based on the upper diameter ratio and the lower diameter ratio.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 2, 2014
    Applicants: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, NIDEK CO., LTD.
    Inventors: Susumu Ishida, Kousuke Noda, Michiyuki Saito, Masahiko Kobayashi, Yasuhiro Hoshikawa