Patents by Inventor Osamu Tsujii

Osamu Tsujii 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: 11069060
    Abstract: The present invention provides an image display method that enables intuitive identification of a portion where a mammary gland region and a microcalcified region overlap each other in a radiographic captured image of a breast. The radiographic image data display method according to an aspect of the present invention includes detecting microcalcified regions and a mammary gland region in the radiographic image data, and displaying the microcalcified regions and the mammary gland region on a single screen.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: July 20, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoshi Kamei, Osamu Tsujii, Tetsuo Shimada
  • Patent number: 10888291
    Abstract: A breast imaging device for rotating a radiation detection unit configured to detect radiation irradiated from a radiation generation unit configured to generate the radiation with the radiation detection unit and the radiation generation unit facing each other includes a ray sum image generation unit configured to generate a ray sum image based on an addition value of at least one pixel value in a visual line direction from volume data reconstructed from a projection image output from the radiation detection unit, a maximum intensity projection image generation unit configured to generate a maximum intensity projection image based on the maximum pixel value in the visual line direction from the volume data, and a synthesizing unit configured to synthesize the ray sum image and the maximum intensity projection image.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: January 12, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tetsuo Shimada, Osamu Tsujii
  • Publication number: 20200380670
    Abstract: The present invention provides an image display method that enables intuitive identification of a portion where a mammary gland region and a microcalcified region overlap each other in a radiographic captured image of a breast. The radiographic image data display method according to an aspect of the present invention includes detecting microcalcified regions and a mammary gland region in the radiographic image data, and displaying the microcalcified regions and the mammary gland region on a single screen.
    Type: Application
    Filed: March 23, 2018
    Publication date: December 3, 2020
    Inventors: Satoshi Kamei, Osamu Tsujii, Tetsuo Shimada
  • Publication number: 20200311989
    Abstract: Provided is an image processing apparatus including: a first generating unit configured to generate a three-dimensional image with use of an image signal obtained by imaging an imaging target object with a radiation; a second generating unit configured to set a projection reference line in the three-dimensional image, and perform projection processing of projecting pixel values of the three-dimensional image to the projection reference line for each projection angle of a plurality of projection angles about the projection reference line, to thereby generate a plurality of pieces of projection data at the plurality of projection angles; and a third generating unit configured to two-dimensionally arrange the plurality of pieces of projection data based on the plurality of projection angles, to thereby generate a two-dimensional image.
    Type: Application
    Filed: June 16, 2020
    Publication date: October 1, 2020
    Inventors: Osamu Tsujii, Tetsuo Shimada
  • Patent number: 10531849
    Abstract: There is provided a radiographic imaging apparatus capable of facilitating a comparative radiological interpretation of symmetric portions or a temporal comparative radiological interpretation of a same imaging target. The radiographic imaging apparatus includes an image control unit configured to cause a display unit configured to display a plurality of divided screens to display a first radiographic image of a first imaging target on a first divided screen of the plurality of divided screens. The image control unit causes a radiographic image of the first imaging target that is captured at a different time from the first radiographic image or a radiographic image of a second imaging target that is a symmetric imaging target of the first imaging target to be displayed on a second divided screen of the plurality of divided screens as a second radiographic image.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: January 14, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuo Shimada, Osamu Tsujii, Akira Yoshino, Hidehiko Morinaga
  • Patent number: 10383587
    Abstract: A radiation CT apparatus includes a rotation unit configured to rotate about a rotation axis, a radiation generation unit and a radiation detector which are fixed on either side of the rotation axis in the rotation unit, and a gantry cover containing the radiation generation unit and the radiation detector and including a breast insert portion configured to insert a breast of an object. An opening portion that can be opened and closed is placed on the gantry cover of the radiation CT apparatus. The radiation generation unit and the radiation detector are stopped to form a space that allows a user to access the breast insert portion from the opening portion.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: August 20, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Osamu Tsujii, Tetsuo Shimada, Sakiko Yamaguchi, Takahiro Noguchi, Hitomi Ogasawara, Chifuyu Inagaki
  • Publication number: 20190083051
    Abstract: A breast imaging device for rotating a radiation detection unit configured to detect radiation irradiated from a radiation generation unit configured to generate the radiation with the radiation detection unit and the radiation generation unit facing each other includes a ray sum image generation unit configured to generate a ray sum image based on an addition value of at least one pixel value in a visual line direction from volume data reconstructed from a projection image output from the radiation detection unit, a maximum intensity projection image generation unit configured to generate a maximum intensity projection image based on the maximum pixel value in the visual line direction from the volume data, and a synthesizing unit configured to synthesize the ray sum image and the maximum intensity projection image.
    Type: Application
    Filed: August 30, 2018
    Publication date: March 21, 2019
    Inventors: Tetsuo Shimada, Osamu Tsujii
  • Patent number: 10231683
    Abstract: A breast imaging apparatus includes a gantry which includes a radiation generation unit configured to generate radiation and a radiation detection unit configured to detect radiation generated by the radiation generation unit, the radiation generation unit and the radiation detection unit being capable of rotating facing each other, wherein the gantry is provided with a front cover configured to protect a subject from the radiation generation unit and the radiation detection unit which rotate during CT imaging, and the front cover has an opening in which the breast of the subject is inserted, and a breast holding portion configured to hold the breast of the subject inserted in the opening.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: March 19, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuo Shimada, Osamu Tsujii, Hiroshi Komatsu, Sakiko Yamaguchi, Nobuhiro Takeuchi, Takahiro Noguchi, Hitomi Ogasawara, Chifuyu Inagaki, Yoshinori Hirano
  • Patent number: 10092264
    Abstract: An image processing apparatus obtains a three-dimensional radiation image of a right region of substantially symmetrical regions, obtains a three-dimensional radiation image of a left region of the substantially symmetrical regions, performs alignment between the three-dimensional radiation image of the right region and the three-dimensional radiation image of the left region based on a feature position of the regions, and substantially symmetrically arranges and displays the three-dimensional radiation image of the right region and the three-dimensional radiation image of the left region which have been aligned.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: October 9, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshihito Machida, Tetsuo Shimada, Osamu Tsujii, Akira Yoshino, Maiko Sato, Hidehiko Morinaga
  • Publication number: 20180120457
    Abstract: A radiographing system includes a radiation detection apparatus that detects radiation that passed through a subject and outputs image data, a spatial statistical processing unit that acquires an average pixel value and a variance value of a predetermined pixel based on the image data and performs a spatial statistical process, a time statistical processing unit that acquires an average pixel value and a variance value in a time-series manner based on a plurality of image data and performs a time statistical process, and a display unit that displays a spatial statistical image based on spatial statistical information or a time statistical image based on time statistical information.
    Type: Application
    Filed: October 24, 2017
    Publication date: May 3, 2018
    Inventors: Osamu Tsujii, Yoshinori Hirano
  • Publication number: 20180064408
    Abstract: Provided is a radiation imaging apparatus including: an image acquiring unit configured to acquire a first radiation image, which is photographed by irradiating an object with radiation under a state in which a subject is not in an imaging range, and a second radiation image, which is photographed by radiating radiation under a state in which the subject and the object are in the imaging range; and an image processing unit configured to perform correction for deleting image information on the object from the second radiation image by using the first radiation image.
    Type: Application
    Filed: August 25, 2017
    Publication date: March 8, 2018
    Inventors: Tetsuo Shimada, Osamu Tsujii
  • Patent number: 9883845
    Abstract: A radiographic apparatus includes a radiation source that emits radiation, a radiation detection unit that detects the radiation emitted from the radiation source, and having transmitted the object of a subject to be examined, a holding unit that holds the object to be examined between the radiation source and the radiation detection unit, and a control unit that performs control for determining an imaging condition, based on information related to the posture of the subject.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: February 6, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Osamu Tsujii
  • Publication number: 20170367669
    Abstract: There is provided a radiographic imaging apparatus capable of facilitating a comparative radiological interpretation of symmetric portions or a temporal comparative radiological interpretation of a same imaging target. The radiographic imaging apparatus includes an image control unit configured to cause a display unit configured to display a plurality of divided screens to display a first radiographic image of a first imaging target on a first divided screen of the plurality of divided screens. The image control unit causes a radiographic image of the first imaging target that is captured at a different time from the first radiographic image or a radiographic image of a second imaging target that is a symmetric imaging target of the first imaging target to be displayed on a second divided screen of the plurality of divided screens as a second radiographic image.
    Type: Application
    Filed: June 16, 2017
    Publication date: December 28, 2017
    Inventors: Tetsuo Shimada, Osamu Tsujii, Akira Yoshino, Hidehiko Morinaga
  • Publication number: 20170332988
    Abstract: A breast imaging apparatus includes a radiation generation unit configured to generate radiation and a radiation detection unit configured to detect radiation irradiation from the radiation generation unit and can rotate the radiation generation unit and the radiation detection unit in a state in which they face each other. Imaging is performed in a state in which a body part (breast) of an object to be imaged is sandwiched by a pressing panel on a first side of the breast imaging apparatus. In addition, imaging is performed while rotating the radiation generation unit and the radiation detection unit in a state in which the body part (breast) of the object to be imaged is inserted between the radiation generation unit and the radiation detection unit from a second side opposite to the first side of the breast imaging apparatus.
    Type: Application
    Filed: June 22, 2016
    Publication date: November 23, 2017
    Inventors: Osamu Tsujii, Tetsuo Shimada, Sakiko Yamaguchi, Takahiro Noguchi
  • Publication number: 20170265828
    Abstract: Provided is a medical image imaging apparatus that images a medical image of a breast, including a determination unit configured to determine an insertion state of the breast based on a form of the breast inserted into an imaging area for the medical image from an insertion portion.
    Type: Application
    Filed: February 15, 2017
    Publication date: September 21, 2017
    Inventor: Osamu Tsujii
  • Publication number: 20170055929
    Abstract: An image processing apparatus obtains a three-dimensional radiation image of a right region of substantially symmetrical regions, obtains a three-dimensional radiation image of a left region of the substantially symmetrical regions, performs alignment between the three-dimensional radiation image of the right region and the three-dimensional radiation image of the left region based on a feature position of the regions, and substantially symmetrically arranges and displays the three-dimensional radiation image of the right region and the three-dimensional radiation image of the left region which have been aligned.
    Type: Application
    Filed: August 4, 2016
    Publication date: March 2, 2017
    Inventors: Yoshihito Machida, Tetsuo Shimada, Osamu Tsujii, Akira Yoshino, Maiko Sato, Hidehiko Morinaga
  • Patent number: 9582892
    Abstract: A radiation imaging apparatus comprising: an image capture unit capturing a radiation image; a first decision unit deciding, as a first region of interest, a region of interest from a region of a first radiation image; a first extraction unit extracting the first region of interest from the first radiation image; a form decision unit deciding a first form from the first region of interest; a first display unit enlarging and displaying the first region of interest; a first search unit searching a region of a second radiation image for a second form similar to the first form; a second decision unit deciding a second region of interest from the second radiation image so as to include the second form; a second extraction unit extracting the second region of interest from the second radiation image; and a second display unit enlarging and displaying the second region of interest.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: February 28, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Osamu Tsujii
  • Publication number: 20170000433
    Abstract: A breast imaging apparatus includes a radiation imaging unit capable of performing mammogram imaging and CT imaging. The breast imaging apparatus includes: a cover detection unit configured to detect a state of a cover that separates an object from the radiation imaging unit; and a control unit configured to switch between the mammogram imaging and the CT imaging based on the state.
    Type: Application
    Filed: June 16, 2016
    Publication date: January 5, 2017
    Inventors: Osamu Tsujii, Tetsuo Shimada, Sakiko Yamaguchi, Takahiro Noguchi, Hitomi Ogasawara, Chifuyu Inagaki
  • Publication number: 20170000436
    Abstract: A breast imaging apparatus includes a gantry which includes a radiation generation unit configured to generate radiation and a radiation detection unit configured to detect radiation generated by the radiation generation unit, the radiation generation unit and the radiation detection unit being capable of rotating facing each other, wherein the gantry is provided with a front cover configured to protect a subject from the radiation generation unit and the radiation detection unit which rotate during CT imaging, and the front cover has an opening in which the breast of the subject is inserted, and a breast holding portion configured to hold the breast of the subject inserted in the opening.
    Type: Application
    Filed: June 28, 2016
    Publication date: January 5, 2017
    Inventors: Tetsuo Shimada, Osamu Tsujii, Hiroshi Komatsu, Sakiko Yamaguchi, Nobuhiro Takeuchi, Takahiro Noguchi, Hitomi Ogasawara, Chifuyu Inagaki, Yoshinori Hirano
  • Publication number: 20170000449
    Abstract: A breast imaging apparatus, capable of performing mammogram imaging and CT imaging by a radiation imaging unit that holds a radiation generation unit and a radiation detection unit configured to detect radiation irradiation from the radiation generation unit such that the radiation generation unit and the radiation detection unit face each other, includes: a housing elevating unit configured to vertically move a housing support unit configured to support the radiation imaging unit; and a control unit configured to control the vertical movement of the housing elevating unit based on an imaging type that is one of mammogram imaging and CT imaging.
    Type: Application
    Filed: June 16, 2016
    Publication date: January 5, 2017
    Inventors: Osamu Tsujii, Tetsuo Shimada, Nobuhiro Takeuchi, Sakiko Yamaguchi, Takahiro Noguchi, Hitomi Ogasawara, Chifuyu Inagaki