Patents by Inventor Tsuyoshi Sakamoto

Tsuyoshi Sakamoto 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: 20190212717
    Abstract: An information processing apparatus for generating a toolpath of a three-dimensional fabrication apparatus includes circuitry to slice three-dimensional data of a three-dimensional object into a plurality of parallel planes to generate a first image slice and a second image slice, extract a first contour in the first image slice and a second contour in the second image slice, the first contour dividing the first image slice into an area inside the three-dimensional object and an area outside the three-dimensional object, the second contour dividing the second image slice into the area inside the three-dimensional object and the area outside the three-dimensional object, and correct a third contour of a third image slice disposed between the first image slice and the second image slice based on the first contour of the first image slice and the second contour of the second image slice.
    Type: Application
    Filed: September 21, 2018
    Publication date: July 11, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Megumi ISOBE, Hideki TANAKA, Tsuyoshi SAKAMOTO, Kohji ARAGAKI, Shintaro TOSEN
  • Patent number: 10226199
    Abstract: An information processing apparatus includes an acquisition unit, a specification unit, a determination unit, a generation unit, and a display control unit. The acquisition unit acquires a three-dimensional image containing at least a tubular structure. The specification unit specifies a first point inside the tubular structure and specifies a lesion outside the tubular structure in the three-dimensional image. The determination unit determines whether a blood vessel is present in a region between the first point and the lesion based on signal values of voxels of the three-dimensional image in the region between the first point and the lesion. The generation unit generates a two-dimensional image of the tubular structure viewed from the first point based on the three-dimensional image. The display control unit displays information indicating a region of the lesion on the two-dimensional image to be distinguishable in determining whether a blood vessel is present in the region.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: March 12, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Noriaki Miyake, Tsuyoshi Sakamoto
  • Patent number: 10176576
    Abstract: A medical image processing apparatus includes a core line identifying unit that identifies a core line of a predetermined region of a tubular structure from medical three-dimensional image data, a center position identifying unit that identifies a center position of the tubular structure from a plurality of points forming the core line identified by the core line identifying unit, an obtaining unit that obtains positions where straight lines intersecting at the center position and the tubular structure in the medical three-dimensional image data are in contact with each other, and a calculating unit that calculates a length of the tubular structure based on the positions obtained by the obtaining unit.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: January 8, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tsuyoshi Sakamoto
  • Publication number: 20180338737
    Abstract: A medical imaging apparatus includes a cardiac lumen region identifying unit, a myocardium identifying unit, and a generating unit. The cardiac lumen region identifying unit is configured to identify a cardiac lumen region from a medical image including a heart region. The myocardium identifying unit is configured to identify a face of a myocardium region obtained by extending a face of the cardiac lumen region, identified by the cardiac lumen region identifying unit, by a certain distance toward a myocardium side. The generating unit is configured to generate a color-coded image in which the face of the myocardium region, identified by the myocardium identifying unit, is colored in colors according to signal values of the medical image corresponding to positions on the face of the myocardium region.
    Type: Application
    Filed: August 7, 2018
    Publication date: November 29, 2018
    Inventor: Tsuyoshi Sakamoto
  • Publication number: 20180268931
    Abstract: The present disclosure provides a medical image processing apparatus capable of readily creating, from a medical image, an electronic document that displays a three-dimensional body organ model. The medical image processing apparatus performs control to acquire patient information from DICOM additional information of medical image data designated when the creation of the electronic document has been instructed, and to create the electronic document of the three-dimensional body organ model corresponding to the medical image data, the electronic document containing the acquire patient information. To which patient the three-dimensional body organ model belongs can be identified on the electronic document.
    Type: Application
    Filed: April 27, 2018
    Publication date: September 20, 2018
    Inventors: Yusuke Imasugi, Tsuyoshi Sakamoto, Noriaki Miyake
  • Patent number: 10070837
    Abstract: A medical imaging apparatus includes a cardiac lumen region identifying unit, a myocardium identifying unit, and a generating unit. The cardiac lumen region identifying unit is configured to identify a cardiac lumen region from a medical image including a heart region. The myocardium identifying unit is configured to identify a face of a myocardium region obtained by extending a face of the cardiac lumen region, identified by the cardiac lumen region identifying unit, by a certain distance toward a myocardium side. The generating unit is configured to generate a color-coded image in which the face of the myocardium region, identified by the myocardium identifying unit, is colored in colors according to signal values of the medical image corresponding to positions on the face of the myocardium region.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: September 11, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tsuyoshi Sakamoto
  • Publication number: 20180247709
    Abstract: A plurality of analysis functions each corresponding to an organ are managed, and organ information is stored in such a manner as to correlate with a corresponding type of analysis function. The organ information indicates which of a plurality of regions included in the organ is to be subjected to thinning. Specification of one of the analysis functions is received from a user, and medical image data is acquired. A plurality of regions of an organ included in the acquired medical image data are identified. The identified plurality of regions of the organ, a region to be subjected to thinning is determined on the basis of the stored organ information and the received type of the analysis function. Thinning is performed on the determined region of the organ. An image of the thinned region is displayed together with an image of a region not subjected to thinning.
    Type: Application
    Filed: April 25, 2018
    Publication date: August 30, 2018
    Inventors: Tsuyoshi Sakamoto, Yusuke Imasugi
  • Publication number: 20180248199
    Abstract: A method for manufacturing metal nanoparticles includes adding at least one metal salt to an ionic liquid to form metal ions in the ionic liquid, and heating the ionic liquid to which the metal salt has been added to thermally reduce the metal ions.
    Type: Application
    Filed: August 26, 2016
    Publication date: August 30, 2018
    Applicant: OSAKA UNIVERSITY
    Inventors: Tetsuya TSUDA, Susumu KUWABATA, Tsuyoshi SAKAMOTO
  • Publication number: 20180218500
    Abstract: A medical image processing apparatus includes a core line identifying unit that identifies a core line of a predetermined region of a tubular structure from medical three-dimensional image data, a center position identifying unit that identifies a center position of the tubular structure from a plurality of points forming the core line identified by the core line identifying unit, an obtaining unit that obtains positions where straight lines intersecting at the center position and the tubular structure in the medical three-dimensional image data are in contact with each other, and a calculating unit that calculates a length of the tubular structure based on the positions obtained by the obtaining unit.
    Type: Application
    Filed: March 28, 2018
    Publication date: August 2, 2018
    Inventor: Tsuyoshi Sakamoto
  • Patent number: 10002423
    Abstract: A medical image processing apparatus acquires a plurality of medical images obtained by imaging an identical region of an object under different radiographing conditions, acquires a correlation between a signal value and a radiographing condition at a pixel at a same position in the plurality of medical images, acquires a virtual radiographing condition that is different from the radiographing conditions of the plurality of medical images, generates an image for a diagnosis by acquiring a signal value of each pixel based on the correlation and the virtual radiographing condition, and acquires a window width value and a window level value for displaying one medical image of an identical cross section of the object.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: June 19, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tsuyoshi Sakamoto
  • Patent number: 9965854
    Abstract: A medical image processing apparatus includes a core line identifying unit that identifies a core line of a predetermined region of a tubular structure from medical three-dimensional image data, a center position identifying unit that identifies a center position of the tubular structure from a plurality of points forming the core line identified by the core line identifying unit, an obtaining unit that obtains positions where straight lines intersecting at the center position and the tubular structure in the medical three-dimensional image data are in contact with each other, and a calculating unit that calculates a length of the tubular structure based on the positions obtained by the obtaining unit.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: May 8, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tsuyoshi Sakamoto
  • Publication number: 20170172383
    Abstract: An information processing apparatus includes an acquisition unit, a specification unit, a determination unit, a generation unit, and a display control unit. The acquisition unit acquires a three-dimensional image containing at least a tubular structure. The specification unit specifies a first point inside the tubular structure and specifies a lesion outside the tubular structure in the three-dimensional image. The determination unit determines whether a blood vessel is present in a region between the first point and the lesion based on signal values of voxels of the three-dimensional image in the region between the first point and the lesion. The generation unit generates a two-dimensional image of the tubular structure viewed from the first point based on the three-dimensional image. The display control unit displays information indicating a region of the lesion on the two-dimensional image to be distinguishable in determining whether a blood vessel is present in the region.
    Type: Application
    Filed: December 16, 2016
    Publication date: June 22, 2017
    Inventors: Noriaki Miyake, Tsuyoshi Sakamoto
  • Publication number: 20170124705
    Abstract: Medical image data is identified, and a lung field region and an emphysema region in each of a plurality of tomographic images are extracted. A mechanism is provided, which is capable of calculating the ratio of the emphysema region to the lung field region, and displaying an image of the medical image data and a value representing the calculated ratio in association with each other.
    Type: Application
    Filed: October 27, 2016
    Publication date: May 4, 2017
    Inventors: Tsuyoshi Sakamoto, Yusuke Imasugi
  • Publication number: 20170072642
    Abstract: An information processing apparatus includes at least one processor configured to determine, for each of polygons that express a 3D shape, a color to be used when the polygon is projected, based on a position of the polygon with respect to a slice plane along a projecting direction in which the polygons are projected, and generate slice data that expresses a sectional shape of the 3D shape along the slice plane based on determined colors.
    Type: Application
    Filed: September 9, 2016
    Publication date: March 16, 2017
    Applicant: Ricoh Company, Ltd.
    Inventors: Tsuyoshi SAKAMOTO, Kohji ARAGAKI
  • Publication number: 20170069085
    Abstract: A medical image processing apparatus acquires a plurality of medical images obtained by imaging an identical region of an object under different radiographing conditions, acquires a correlation between a signal value and a radiographing condition at a pixel at a same position in the plurality of medical images, acquires a virtual radiographing condition that is different from the radiographing conditions of the plurality of medical images, generates an image for a diagnosis by acquiring a signal value of each pixel based on the correlation and the virtual radiographing condition, and acquires a window width value and a window level value for displaying one medical image of an identical cross section of the object.
    Type: Application
    Filed: August 31, 2016
    Publication date: March 9, 2017
    Inventor: Tsuyoshi Sakamoto
  • Patent number: 9500862
    Abstract: Provided is a display information generation apparatus that displays information in a manner so that it becomes possible to immediately and intuitively recognize the information, which is for guiding a mobile body. A navigation apparatus provided with a display that moves together with a vehicle is provided with a display data generation unit that acquires position information indicating the position of the vehicle, acquires, on the basis of the acquired position information, distance information indicating the distance from the position of the vehicle of facilities positioned along the road along which the vehicle is moving, and, on the basis of the acquired position information and distance information, displays an icon indicating the facilities at both sides of the road at the display arranged in order of the order of appearance accompanying the motion of the vehicle.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: November 22, 2016
    Assignee: PIONEER CORPORATION
    Inventors: Tomoya Oishi, Tsuyoshi Sakamoto, Katsunori Arakawa, Seiichi Hasebe, Shota Satou, Ryuichiro Matsumoto, Mineki Miyasaka, Jun Oosugi
  • Publication number: 20160292818
    Abstract: A medical image display apparatus includes a display unit that displays at least partial paths of a plurality of paths of a tubular structure identified from a medical image, the at least partial paths including a first path and a second path that are displayed separately from each other, and a display magnification determining unit that determines at least one of a display magnification and a display position of at least one of the displayed first and second path based on whether the first path and the second path has a common part to each other, wherein the display unit displays the first path and the second path and displays one of the first path and the second path at a determined display magnification.
    Type: Application
    Filed: March 30, 2016
    Publication date: October 6, 2016
    Inventor: Tsuyoshi Sakamoto
  • Publication number: 20160260214
    Abstract: A medical image processing apparatus includes a core line identifying unit that identifies a core line of a predetermined region of a tubular structure from medical three-dimensional image data, a center position identifying unit that identifies a center position of the tubular structure from a plurality of points forming the core line identified by the core line identifying unit, an obtaining unit that obtains positions where straight lines intersecting at the center position and the tubular structure in the medical three-dimensional image data are in contact with each other, and a calculating unit that calculates a length of the tubular structure based on the positions obtained by the obtaining unit.
    Type: Application
    Filed: March 1, 2016
    Publication date: September 8, 2016
    Inventor: Tsuyoshi Sakamoto
  • Publication number: 20160104278
    Abstract: A medical imaging apparatus includes a cardiac lumen region identifying unit, a myocardium identifying unit, and a generating unit. The cardiac lumen region identifying unit is configured to identify a cardiac lumen region from a medical image including a heart region. The myocardium identifying unit is configured to identify a face of a myocardium region obtained by extending a face of the cardiac lumen region, identified by the cardiac lumen region identifying unit, by a certain distance toward a myocardium side. The generating unit is configured to generate a color-coded image in which the face of the myocardium region, identified by the myocardium identifying unit, is colored in colors according to signal values of the medical image corresponding to positions on the face of the myocardium region.
    Type: Application
    Filed: October 7, 2015
    Publication date: April 14, 2016
    Inventor: Tsuyoshi Sakamoto
  • Publication number: 20150293354
    Abstract: Provided is a display information generation apparatus that displays information in a manner so that it becomes possible to immediately and intuitively recognize the information, which is for guiding a mobile body. A navigation apparatus provided with a display that moves together with a vehicle is provided with a display data generation unit that acquires position information indicating the position of the vehicle, acquires, on the basis of the acquired position information, distance information indicating the distance from the position of the vehicle of facilities positioned along the road along which the vehicle is moving, and, on the basis of the acquired position information and distance information, displays an icon indicating the facilities at both sides of the road at the display arranged in order of the order of appearance accompanying the motion of the vehicle.
    Type: Application
    Filed: March 13, 2012
    Publication date: October 15, 2015
    Applicant: PIONEER CORPORATION
    Inventors: Tomoya OISHI, Tsuyoshi SAKAMOTO, Katsunori ARAKAWA, Seiichi HASEBE, Shota SATOU, Ryuichiro MATSUMOTO, Mineki MIYASAKA, Jun OOSUGI