Patents by Inventor Ryo Ishikawa

Ryo Ishikawa 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: 10417777
    Abstract: An image processing apparatus obtains a first image and a second image obtained by imaging an object under different conditions, obtains a region of interest in the first image, obtains a first deformation displacement field between the first image and the second image, approximates the first deformation displacement field in the region of interest using an approximation transformation model of a degree of freedom lower than that of the first deformation displacement field, thereby generating an approximated displacement field, generates, concerning the region of interest, corresponding information between the first image and an image obtained by displacing the first image based on the approximated displacement field, and obtains a second deformation displacement field between the first image and the second image using the corresponding information.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: September 17, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuhiro Miyasa, Ryo Ishikawa
  • Publication number: 20190278026
    Abstract: A fiber coupling device (100) includes the following components: a wedge plate (102) for receiving light and refracting the light in a predetermined direction, a condenser lens (104) for collecting the light refracted by the wedge plate (102); and an optical fiber (107) having an incident surface for receiving the light collected by the condenser lens (104). The wedge plate (102) is held rotatable around the optical axis (200) of the light incident on the wedge plate (102). The light refracted by the wedge plate (102) and collected by the condenser lens (104) is incident on a different point on the incident surface depending on the rotation angle of the wedge plate (102).
    Type: Application
    Filed: May 30, 2019
    Publication date: September 12, 2019
    Inventors: MASATOSHI NISHIO, HITOSHI NISHIMURA, JINGBO WANG, MAKOTO RYUDO, DOUKEI NAGAYASU, HIDEAKI YAMAGUCHI, YOSHIAKI TAKENAKA, KIYOTAKA EIZUMI, RYO ISHIKAWA, YASUSHI MUKAI
  • Publication number: 20190271588
    Abstract: A laser device includes the following components: a laser resonator for emitting a laser beam; a condenser lens (21) for collecting the laser beam emitted from the laser resonator; an optical fiber (7) for transmitting the laser beam collected by the condenser lens (21); at least one light sensor (5) opposing a light receiving surface of the condenser lens (21) and outside the optical path of the laser beam, the at least one light sensor (5) detecting the amount of return light from the condenser lens (21); and a controller for determining the presence of an abnormality when the value of the amount detected by any of the at least one light sensor (5) is greater than the predetermined maximum threshold.
    Type: Application
    Filed: May 21, 2019
    Publication date: September 5, 2019
    Inventors: JINGBO WANG, DOUKEI NAGAYASU, YOSHIAKI TAKENAKA, HITOSHI NISHIMURA, MAKOTO RYUDO, KIYOTAKA EIZUMI, HIDEAKI YAMAGUCHI, RYO ISHIKAWA, MASATOSHI NISHIO, TAKASI KAKUTANI, YASUSHI MUKAI, MITSURU MUKAI, HIROYUKI HAYASHIKAWA
  • Publication number: 20190262938
    Abstract: Laser processing device (1) includes: laser-beam switching apparatus (70) that switches between a first optical path and a second optical path as an optical path along which a laser beam is to travel, the first optical path including first fiber (11), the second optical path including second fiber (21) that has a core diameter that is larger than a core diameter of first fiber (11); and processing head (80) that illuminates a same processed point on workpiece (900) with a laser beam that has passed through the first optical path or the second optical path. When illumination with laser beam that has passed through the first optical path is performed for a predetermined period of time, laser-beam switching apparatus (70) switches from the first optical path to the second optical path.
    Type: Application
    Filed: May 10, 2019
    Publication date: August 29, 2019
    Inventors: DOUKEI NAGAYASU, HITOSHI NISHIMURA, JINGBO WANG, MAKOTO RYUDO, MASATOSHI NISHIO, HIDEAKI YAMAGUCHI, YOSHIAKI TAKENAKA, KIYOTAKA EIZUMI, RYO ISHIKAWA
  • Publication number: 20190251691
    Abstract: An information processing apparatus includes an image acquisition unit, a correspondence relation acquisition unit, an image transformation unit, a change calculation unit, and a statistics amount calculation unit. The image acquisition unit acquires a first image and a second image. The correspondence relation acquisition unit acquires a spatial correspondence relation between the first and the second images. The image transformation unit acquires a transformed image by transforming the second image to substantially coincide with the first image based on the spatial correspondence relation. The change calculation unit calculates a volume or area change between the transformed image and the second image based on the spatial correspondence relation. The statistics amount calculation unit calculates a statistics amount for pixel values of the transformed image based on the volume or area change.
    Type: Application
    Filed: February 12, 2019
    Publication date: August 15, 2019
    Inventor: Ryo Ishikawa
  • Publication number: 20190251690
    Abstract: An information processing apparatus includes a first selection unit that selects a second image to be compared with a first image from a plurality of candidate images, a setting unit, an overlap range calculation unit, an evaluation value calculation unit, and a second selection unit. The setting unit sets a plurality of combinations including two or more candidate images from among the plurality of candidate images. The overlap range calculation unit calculates an overlap range between the first image and each of the plurality of combinations. The evaluation value calculation unit calculates an evaluation value of each of the plurality of combinations based on the calculated overlap range. The second selection unit selects at least one combination from the plurality of combinations based on the evaluation value. The first selection unit selects the two or more candidate images included in the selected combination as the second image.
    Type: Application
    Filed: January 28, 2019
    Publication date: August 15, 2019
    Inventors: Gakuto Aoyama, Ryo Ishikawa
  • Publication number: 20190252794
    Abstract: A wireless communication apparatus includes a transmitting antenna; and a receiving antenna that receives a wireless signal transmitted from the transmitting antenna. Each of the transmitting antenna and the receiving antenna includes a plurality of circular loop antennas arranged concentrically in an identical plane, each of the plurality of circular loop antennas having a loop perimeter approximately equal to an integer multiple of one wavelength determined from a frequency in a wireless communication; and a plurality of feeding sections individually connected with the plurality of circular loop antennas. A central axis of the plurality of circular loop antennas of the transmitting antenna and a central axis of the plurality of circular loop antennas of the receiving antenna are arranged approximately on a straight line. Thus, a wireless signal is transmitted between the circular loop antennas having a loop perimeter of a transmitting side and a receiving side.
    Type: Application
    Filed: April 24, 2017
    Publication date: August 15, 2019
    Applicant: THE UNIVERSITY OF ELECTRO-COMMUNICATIONS
    Inventors: Akira SAITO, Kazuhiko HONJO, Ryo ISHIKAWA, Hiroto OTSUKA
  • Publication number: 20190197723
    Abstract: An image processing apparatus includes search area calculation means for calculating a search area size on the basis of a pixel size of at least one image among a first image and a second image, position obtaining means for obtaining a position of interest on the first image and a correspondence position on the second image corresponding to the position of interest, search area setting means for setting a search area made up of the search area size in a surrounding of the correspondence position on the second image, and difference means for deciding a difference value corresponding to the position of interest on a basis of a density value of the position of interest on the first image and density values of a plurality of positions in the search area on the second image.
    Type: Application
    Filed: February 28, 2019
    Publication date: June 27, 2019
    Inventors: Toru Tanaka, Kiyohide Satoh, Ryo Ishikawa
  • Publication number: 20190191711
    Abstract: A composition for controlling plant diseases comprising Paecilomyces fumosoroseus, and one or more nematicidal active ingredients selected from specific groups has an excellent controlling effect on plant diseases.
    Type: Application
    Filed: February 27, 2019
    Publication date: June 27, 2019
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Ryo ISHIKAWA, Shinji ISAYAMA
  • Publication number: 20190197687
    Abstract: An apparatus acquires a first converted image by converting resolution of a first image of a subject into first resolution, acquires a second converted image by converting resolution of a second image into the first resolution, acquires first deformation information for executing image registration between the first converted image and the second converted image with the first resolution, and generates a subtraction image with the first resolution based on the first deformation information, the subtraction image showing a difference between the first converted image and the second converted image, or generates a second subtraction image based on second deformation information obtained in such a manner that resolution of the first deformation information is converted into the resolution of the first image, the second subtraction image showing a difference between the first image and the second image.
    Type: Application
    Filed: December 19, 2018
    Publication date: June 27, 2019
    Inventors: Yoshitaka Minami, Ryo Ishikawa, Toru Tanaka, Kiyohide Satoh, Keita Nakagomi
  • Patent number: 10325367
    Abstract: An information processing apparatus includes a processor and a memory containing instructions that cause the processor to perform operations. The operations include obtaining a group of candidates of corresponding points which are pairs of feature points in a first space and feature points in a second space, calculating a plurality of displacement fields under a plurality of different regularization conditions based on the candidate group, calculating a feature point group which has been subjected to a plurality of displacements by displacing the feature points in the first space by the plurality of displacement fields, and calculating matching degrees of the corresponding points included in the candidate group in accordance with the feature point group which has been subjected to the plurality of displacements.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: June 18, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Ryo Ishikawa, Kiyohide Satoh
  • Patent number: 10268918
    Abstract: An image processing apparatus includes: an obtaining unit configured to obtain corresponding points group information for associating a position in an image captured in a first deformation state with a position in an image captured in a second deformation state; a calculation unit configured to calculate deformation from the image captured in the first deformation state to the image captured in the second deformation state based on the corresponding points group information; a display control unit configured to display, on a display unit, deformation progress information of an image based on the deformation calculated by the calculation unit; and a correction unit configured to correct the corresponding points group information. The calculation unit calculates the deformation based on the corresponding points group information corrected by the correction unit.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: April 23, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Itaru Otomaru, Kazuhiro Miyasa, Ryo Ishikawa
  • Publication number: 20190064451
    Abstract: A fiber spatial coupling device includes a detachable process fiber, an optical system, and a main body. The process fiber guides laser light. The optical system collects the laser light into the process fiber. The main body holds the optical system, and has a supply port for supplying gas to a space between the process fiber and the optical system.
    Type: Application
    Filed: February 27, 2017
    Publication date: February 28, 2019
    Inventors: YOSHIAKI TAKENAKA, HITOSHI NISHIMURA, MAKOTO RYUDO, JINGBO WANG, MASATOSHI NISHIO, KIYOTAKA EIZUMI, HIDEAKI YAMAGUCHI, RYO ISHIKAWA, DOUKEI NAGAYASU
  • Publication number: 20190035094
    Abstract: An image processing apparatus in which identification of a corresponding target point between images is easily performed, and physically appropriate registration can be performed by using the identification is provided. The image processing apparatus obtains coordinate transformation for respectively transforming a first image and a second image obtained by imaging an object to a first transformed image and a second transformed image, obtains correspondence information that serves as information of a corresponding point included in each of the first transformed image and the second transformed image, respectively transforms the correspondence information to positions in the first image and the second image, and obtains deformation transformation for performing registration of the first image and the second image on the basis of information of the corresponding points in the first image and the second image.
    Type: Application
    Filed: December 28, 2016
    Publication date: January 31, 2019
    Inventors: Ryo Ishikawa, Takaaki Endo, Kazuhiro Miyasa, Kenji Morita
  • Publication number: 20190030641
    Abstract: A fiber coupling device includes a housing and a window provided in the housing. The fiber coupling device is configured to collectively guide plural laser beams to at least a first fiber, the plurality of laser beams each being emitted from a corresponding one of plural external laser light sources and entering through a laser beam inlet. The housing is configured such that the laser beams enter the housing from the laser beam inlet. The window is provided inside the housing and faces the laser beam inlet. The fiber coupling device is not required to detach when an optical axis is adjusted.
    Type: Application
    Filed: March 7, 2017
    Publication date: January 31, 2019
    Inventors: DOUKEI NAGAYASU, HITOSHI NISHIMURA, MAKOTO RYUDO, JINGBO WANG, YOSHIAKI TAKENAKA, KIYOTAKA EIZUMI, HIDEAKI YAMAGUCHI, RYO ISHIKAWA, MASATOSHI NISHIO
  • Publication number: 20190012067
    Abstract: The image displaying apparatus includes: an image acquiring unit configured to acquire an object image to be displayed; a determining unit configured to determine whether the object image to be displayed is a predetermined display type, a reference value of which is allocated to a particular pixel value; a setting unit configured to set the WL and the WW when the object image to be displayed is displayed and fix the WL to a predetermined value when the determining unit determines that the object image to be displayed is a predetermined display type; and an image converting unit configured to convert the object image to be displayed so that the object image to be displayed is displayed at the WL fixed to the predetermined value or the set WL and with the set WW.
    Type: Application
    Filed: July 9, 2018
    Publication date: January 10, 2019
    Inventors: Masahiro Yakami, Yutaka Emoto, Thai Akasaka, Gakuya Soeda, Kiyohide Satoh, Ryo Ishikawa
  • Patent number: 10102622
    Abstract: A processing apparatus obtains a contour of a region of interest of a target object and a reference point on the contour from an image of the target object, calculates a distance and an azimuth at an arbitrary position on the contour from the reference point, and generates normalization transformation information for transforming a shape of the region of interest of the target object to a predetermined reference shape based on the distance and the azimuth.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: October 16, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryo Ishikawa, Takaaki Endo, Kiyohide Satoh
  • Publication number: 20180268547
    Abstract: An image processing apparatus comprises a corresponding point obtaining unit configured to obtain corresponding points that are feature points of an object associated between a first image and a second image; a first deformation obtaining unit configured to obtain first deformation that is based on the corresponding points; a second deformation obtaining unit configured to obtain second deformation that is performed between the first image and the second image, and in which a degree of coincidence of corresponding points is lower than the first deformation; and a combining unit configured to combine the first deformation and the second deformation, regarding positions in at least one image of the first Image and the second image, based on distances between the corresponding points and the positions.
    Type: Application
    Filed: March 7, 2018
    Publication date: September 20, 2018
    Inventors: Kazuhiro Miyasa, Kiyohide Satoh, Ryo Ishikawa
  • Patent number: 10068056
    Abstract: This invention provides a mechanism for making a doctor surely follow correct procedures in which the doctor confirms diagnosis information obtained by computer processing after he or she has completed interpretation. A medical diagnosis support apparatus executes diagnosis processing for acquiring medical diagnosis information from an image to be interpreted by computer processing. The medical diagnosis support apparatus accepts interpretation information as an interpretation result of the image to be interpreted, which information is input by, for example, a doctor. The medical diagnosis support apparatus calculates a degree of matching between the diagnosis information and interpretation information, and permits to present the diagnosis information acquired by the diagnosis processing when the calculated degree of matching exceeds a predetermined threshold.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: September 4, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kazuhiro Miyasa, Yoshio Iizuka, Akihiro Katayama, Ryo Ishikawa
  • Publication number: 20180204349
    Abstract: An apparatus includes a first acquisition unit acquiring first multiple image data sets, a second acquisition unit acquiring first composited image data using first two or more image data sets of the first multiple image data sets, a third acquisition unit acquiring second composited volume data, using second two or more image data sets of the first multiple image data sets, the second two or more image data sets different from the first two or more image data sets, a fourth acquisition unit acquiring information relating to positional displacement between the first the second composited volume data, using the first the second composited image data, and a fifth acquisition unit acquiring information relating to positional displacement of the first multiple of image data sets, using information relating to the positional displacement between the first the second composited image data.
    Type: Application
    Filed: July 4, 2016
    Publication date: July 19, 2018
    Applicant: Canon Kabushiki Kaisha
    Inventor: Ryo Ishikawa