Patents by Inventor Hiroto Mizohana

Hiroto Mizohana 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).

  • Publication number: 20230390936
    Abstract: A control method for controlling an apparatus including a movable portion by a visual servo includes obtaining a goal image corresponding to a goal positional relationship between the movable portion and a target object, extracting goal feature points whose information has a degree of freedom of ? from the goal image by image processing, obtaining a current image corresponding to a current positional relationship between the movable portion and the target object, extracting candidate feature points from the current image by image processing, extracting current feature points associated with the goal feature points from the candidate feature points by performing matching processing between the candidate feature points and the goal feature points, and generating, by using matching information based on matching between the current feature points and the goal feature points in the matching processing, a control signal for moving the movable portion at a degree of freedom of n.
    Type: Application
    Filed: June 2, 2023
    Publication date: December 7, 2023
    Inventors: Hiroto Mizohana, Ryoji Tsukamoto
  • Patent number: 11741632
    Abstract: A system includes an information processing device. The information processing device is configured to acquire an image group from each of a plurality of cameras. The image group includes a plurality of images of an object that moves relative to each of the plurality of cameras. The plurality of images are captured by a corresponding camera at predetermined intervals and having different image capture times. The information processing device is configured to calculate an amount of movement of the object relative to each of the plurality of cameras, based on the image group acquired from each of the plurality of cameras. The information processing device is configured to detect a lag between image capture timings of the plurality of cameras, by using the amount of movement of the object relative to each of the plurality of cameras.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: August 29, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroto Mizohana, Keita Dan, Kenkichi Yamamoto, Kei Watanabe
  • Patent number: 11443410
    Abstract: An image processing method includes a matching cost calculating process of calculating matching costs in a unit of sub-pixels having higher resolution than first and second images by using an image of a reference area contained in the first image in which a target object is imaged and images of a plurality of comparison areas contained in the second image in which the target object is imaged, and a synthesized cost calculating process of calculating synthesized costs related to the reference area based on comparison results of values related to the plurality of matching costs calculated in the matching cost calculating process.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: September 13, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hiroto Mizohana, Keita Dan
  • Publication number: 20220028117
    Abstract: A system includes an information processing device. The information processing device is configured to acquire an image group from each of a plurality of cameras. The image group includes a plurality of images of an object that moves relative to each of the plurality of cameras. The plurality of images are captured by a corresponding camera at predetermined intervals and having different image capture times. The information processing device is configured to calculate an amount of movement of the object relative to each of the plurality of cameras, based on the image group acquired from each of the plurality of cameras. The information processing device is configured to detect a lag between image capture timings of the plurality of cameras, by using the amount of movement of the object relative to each of the plurality of cameras.
    Type: Application
    Filed: July 15, 2021
    Publication date: January 27, 2022
    Inventors: Hiroto Mizohana, Keita Dan, Kenkichi Yamamoto, Kei Watanabe
  • Publication number: 20210400252
    Abstract: An imaging system includes a plurality of cameras, and a controller, wherein the controller detects synchronous deviation of image capturing timing of the plurality of cameras by using images respectively captured by the plurality of cameras.
    Type: Application
    Filed: June 16, 2021
    Publication date: December 23, 2021
    Inventors: Keita Dan, Hiroto Mizohana, Kenkichi Yamamoto, Kei Watanabe
  • Publication number: 20210110513
    Abstract: An image processing method includes a matching cost calculating process of calculating matching costs in a unit of sub-pixels having higher resolution than first and second images by using an image of a reference area contained in the first image in which a target object is imaged and images of a plurality of comparison areas contained in the second image in which the target object is imaged, and a synthesized cost calculating process of calculating synthesized costs related to the reference area based on comparison results of values related to the plurality of matching costs calculated in the matching cost calculating process.
    Type: Application
    Filed: October 2, 2020
    Publication date: April 15, 2021
    Inventors: Hiroto Mizohana, Keita Dan