Patents by Inventor Satoshi Naito

Satoshi Naito 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: 20220016390
    Abstract: Provided are a catheter device and a catheter package which are capable of preventing a bend from being formed in a catheter body. The catheter body includes a wire state discrimination portion which discriminates a protruding state and a non-protruding state, in which the wire state discrimination portion includes a stopper which allows a transition from the protruding state to the non-protruding state, and blocks a transition from the non-protruding state to the protruding state.
    Type: Application
    Filed: June 22, 2021
    Publication date: January 20, 2022
    Applicant: FUJIFILM Corporation
    Inventors: Takumi DEJIMA, Tomohiro OHKI, Satoshi NAITO
  • Publication number: 20210125724
    Abstract: There are provided a medical image processing apparatus, a medical image processing method, a machine learning system, and a program that can reduce the volume of communication and can reduce the processing load of retraining or additional training that is performed by a machine learning apparatus.
    Type: Application
    Filed: December 10, 2020
    Publication date: April 29, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Misaki KAWAHARA, Goro MIURA, Satoshi NAITO, Shumpei KAMON, Masaaki OOSAKE
  • Patent number: 10630993
    Abstract: An apparatus includes a first holding unit configured to hold, in a reference image, first reference pixels in a search range including a block corresponding to a first block as a coding target in the input image, a first search unit configured to search for a motion vector of a prediction block included in the first block, using the first reference pixels, a second holding unit configured to hold, in the reference image, second reference pixels in a search range including a block corresponding to a second block as a coding target, a second search unit configured to search for a motion vector of a prediction block included in the second block, using the second reference pixels, and a transfer unit configured to read, from among the first reference pixels, a reference pixel to be used by the second search unit for the search.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: April 21, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Satoshi Naito
  • Patent number: 10595038
    Abstract: A moving image coding apparatus includes a feature amount derivation unit configured to derive a feature amount of a block having a reference size smaller than the block unit, the block included in a subject frame being a processing subject of the frames included in the moving image, a decision unit configured to, in a case where the feature amount, derived by the feature amount derivation unit, of the block having the reference size is matched with a first condition, decide the reference size as a block size for inter-prediction and decide a size equal to or smaller than the block size for inter-prediction as a block size for intra-prediction, and a selection unit configured to perform a predetermined evaluation and select one of inter-prediction and intra-prediction as a prediction method for the block having the block size decided by the decision unit.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: March 17, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Makoto Kimura, Reiko Fujino, Satoshi Naito
  • Patent number: 10397566
    Abstract: An image coding apparatus which codes an image using intra prediction determines a size of a prediction block to be a unit of processing for performing intra prediction. The image coding apparatus derives a prediction error by performing intra prediction on the prediction block, derives a coding cost of a prediction mode when performing the intra prediction using a reference according to the determined size, and determines the coding cost of the prediction mode based on the coding cost of the prediction mode and the prediction error. The image coding apparatus determines a prediction mode of the prediction block from among a plurality of prediction modes based on the coding cost.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: August 27, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Susumu Igarashi, Satoshi Naito
  • Patent number: 10275647
    Abstract: An image obtaining section obtains a radiation image that includes a periodic pattern of a grid. A frequency analyzing section performs frequency analysis on the radiation image to obtain a frequency spectrum of the radiation image. A peak determining section determines a peak within the frequency spectrum to be a target of processing. A first judging section measures the width of the peak which is the target of processing, and judges the quality of the grid based on the measured width of the peak.
    Type: Grant
    Filed: November 13, 2016
    Date of Patent: April 30, 2019
    Assignee: FUJIFILM Corporation
    Inventor: Satoshi Naito
  • Patent number: 10258305
    Abstract: It is detected whether a grid stripe is present in a radiographic image. In a case in which the grid stripe is detected, a process of removing the grid stripe from the radiographic image is performed and the radiographic image is displayed. In a case in which the grid stripe is not detected, a process of removing a scattered component from the radiographic image is performed and a radiographic image subjected to the scattered radiation removal process and a radiographic image before the process are displayed.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: April 16, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Jun Enomoto, Takashi Tajima, Takeshi Koishi, Haruyasu Nakatsugawa, Hirofumi Sawada, Daiki Harada, Takahiro Kawamura, Satoshi Naito, Hideki Yamagishi, Noriaki Ida
  • Patent number: 10235766
    Abstract: A subject image is acquired. A virtual model of the subject having a predetermined body thickness distribution is acquired. A composite image of an estimated primary X-ray image, which is obtained by estimating a primary X-ray image of the virtual model obtained by radiography from the virtual model, and an estimated scattered X-ray image, which is obtained by estimating a scattered X-ray image of the virtual model obtained by radiography from the virtual model, is generated as an estimated image which is obtained by estimating a radiographic image of the subject obtained by radiography. The body thickness distribution of the virtual model is corrected such that a difference between the estimated image and the subject image is reduced. The corrected body thickness distribution of the virtual model is determined as the body thickness distribution of the subject.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: March 19, 2019
    Assignee: FUJIFILM Corporation
    Inventor: Satoshi Naito
  • Patent number: 10231688
    Abstract: The distance between the radiation source and an object (SOD value) is acquired, distance dependent information which is obtained from a radiation image and changes with the distance between a radiation source and a radiation detector (SID value) is acquired, a temporary thickness of the object is determined by a first function representing the correspondence relationship of first information having at least one piece of the distance dependent information, the SID value, and the thickness of the object, and the temporary SID value is determined by adding the SOD value to the determined value. The thickness of the object is determined by a second function representing the correspondence relationship of second information having at least one piece of the distance dependent information, the SID value, and the thickness of the object, and the SID value is determined by adding the SOD value to the determined value.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: March 19, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Satoshi Naito, Takahiro Kawamura
  • Patent number: 10219770
    Abstract: A radiographic image captured by irradiating a subject with radiation is acquired. A scattered radiation removal unit removes a scattered component from the radiographic image using at least imaging conditions. A correction information acquisition unit acquires correction information for correcting the degree of removal of the scattered component and changes the imaging conditions on the basis of the correction information. The scattered radiation removal unit performs a process of removing the scattered component from the radiographic image on the basis of the changed imaging conditions.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: March 5, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Jun Enomoto, Takashi Tajima, Takeshi Koishi, Haruyasu Nakatsugawa, Hirofumi Sawada, Daiki Harada, Takahiro Kawamura, Satoshi Naito, Hideki Yamagishi, Noriaki Ida
  • Publication number: 20180332299
    Abstract: A moving image coding apparatus includes a feature amount derivation unit configured to derive a feature amount of a block having a reference size smaller than the block unit, the block included in a subject frame being a processing subject of the frames included in the moving image, a decision unit configured to, in a case where the feature amount, derived by the feature amount derivation unit, of the block having the reference size is matched with a first condition, decide the reference size as a block size for inter-prediction and decide a size equal to or smaller than the block size for inter-prediction as a block size for intra-prediction, and a selection unit configured to perform a predetermined evaluation and select one of inter-prediction and intra-prediction as a prediction method for the block having the block size decided by the decision unit.
    Type: Application
    Filed: May 7, 2018
    Publication date: November 15, 2018
    Inventors: Makoto Kimura, Reiko Fujino, Satoshi Naito
  • Publication number: 20180316915
    Abstract: An image coding apparatus which codes an image using intra prediction determines a size of a prediction block to be a unit of processing for performing intra prediction. The image coding apparatus derives a prediction error by performing intra prediction on the prediction block, derives a coding cost of a prediction mode when performing the intra prediction using a reference according to the determined size, and determines the coding cost of the prediction mode based on the coding cost of the prediction mode and the prediction error. The image coding apparatus determines a prediction mode of the prediction block from among a plurality of prediction modes based on the coding cost.
    Type: Application
    Filed: April 18, 2018
    Publication date: November 1, 2018
    Inventors: Susumu Igarashi, Satoshi Naito
  • Publication number: 20180262761
    Abstract: An apparatus includes a first holding unit configured to hold, in a reference image, first reference pixels in a search range including a block corresponding to a first block as a coding target in the input image, a first search unit configured to search for a motion vector of a prediction block included in the first block, using the first reference pixels, a second holding unit configured to hold, in the reference image, second reference pixels in a search range including a block corresponding to a second block as a coding target, a second search unit configured to search for a motion vector of a prediction block included in the second block, using the second reference pixels, and a transfer unit configured to read, from among the first reference pixels, a reference pixel to be used by the second search unit for the search.
    Type: Application
    Filed: February 28, 2018
    Publication date: September 13, 2018
    Inventor: Satoshi Naito
  • Patent number: 9996910
    Abstract: A frequency resolution unit performs frequency resolution of a radiographic image to generate band images representing frequency components in a plurality of frequency bands. A reference image generation unit generates a reference image representing information associated with scattered radiation included in the radiographic image, and generates a plurality of band reference images corresponding to a plurality of frequency bands from the reference image. A band image conversion unit performs conversion between the corresponding pixels of the band reference images and the band images in the corresponding frequency bands to generate converted band images. A synthesis unit synthesizes the converted band images to generate a processed radiographic image with converted contrast.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: June 12, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Satoshi Naito, Takahiro Kawamura
  • Publication number: 20180122094
    Abstract: A subject image is acquired. A virtual model of the subject having a predetermined body thickness distribution is acquired. A composite image of an estimated primary X-ray image, which is obtained by estimating a primary X-ray image of the virtual model obtained by radiography from the virtual model, and an estimated scattered X-ray image, which is obtained by estimating a scattered X-ray image of the virtual model obtained by radiography from the virtual model, is generated as an estimated image which is obtained by estimating a radiographic image of the subject obtained by radiography. The body thickness distribution of the virtual model is corrected such that a difference between the estimated image and the subject image is reduced. The corrected body thickness distribution of the virtual model is determined as the body thickness distribution of the subject.
    Type: Application
    Filed: December 28, 2017
    Publication date: May 3, 2018
    Applicant: FUJIFILM Corporation
    Inventor: Satoshi NAITO
  • Publication number: 20180047142
    Abstract: A frequency resolution unit performs frequency resolution of a radiographic image to generate band images representing frequency components in a plurality of frequency bands. A reference image generation unit generates a reference image representing information associated with scattered radiation included in the radiographic image, and generates a plurality of band reference images corresponding to a plurality of frequency bands from the reference image. A band image conversion unit performs conversion between the corresponding pixels of the band reference images and the band images in the corresponding frequency bands to generate converted band images. A synthesis unit synthesizes the converted band images to generate a processed radiographic image with converted contrast.
    Type: Application
    Filed: October 27, 2017
    Publication date: February 15, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Satoshi NAITO, Takahiro KAWAMURA
  • Patent number: 9886765
    Abstract: A subject image is acquired. A virtual model of the subject having a predetermined body thickness distribution is acquired. A composite image of an estimated primary X-ray image, which is obtained by estimating a primary X-ray image of the virtual model obtained by radiography from the virtual model, and an estimated scattered X-ray image, which is obtained by estimating a scattered X-ray image of the virtual model obtained by radiography from the virtual model, is generated as an estimated image which is obtained by estimating a radiographic image of the subject obtained by radiography. The body thickness distribution of the virtual model is corrected such that a difference between the estimated image and the subject image is reduced. The corrected body thickness distribution of the virtual model is determined as the body thickness distribution of the subject.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: February 6, 2018
    Assignee: FUJIFILM Corporation
    Inventor: Satoshi Naito
  • Patent number: 9836830
    Abstract: A frequency resolution unit performs frequency resolution of a radiographic image to generate band images representing frequency components in a plurality of frequency bands. A reference image generation unit generates a reference image representing information associated with scattered radiation included in the radiographic image, and generates a plurality of band reference images corresponding to a plurality of frequency bands from the reference image. A band image conversion unit performs conversion between the corresponding pixels of the band reference images and the band images in the corresponding frequency bands to generate converted band images. A synthesis unit synthesizes the converted band images to generate a processed radiographic image with converted contrast.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: December 5, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Satoshi Naito, Takahiro Kawamura
  • Patent number: 9679368
    Abstract: A radiographic image processing device includes: an image acquisition section that acquires a subject image detected by a shielded detection portion and a non-shielded detection portion; an area information acquisition section that acquires area information which is information for specifying a non-shielded image area and a shielded image area; and a scattered ray suppression section that estimates spreading of scattered rays generated in a non-shielded subject portion, estimates that scattered rays that spread to the non-shielded image area from a shielded subject portion are not present, calculates a scattered ray component in each position in the non-shielded image area as the estimated scattered rays reach each position in the non-shielded image area, and suppresses the scattered ray component in each position in the non-shielded image area according to the calculated scattered ray component.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: June 13, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Satoshi Naito, Takahiro Kawamura
  • Publication number: 20170140203
    Abstract: An image obtaining section obtains a radiation image that includes a periodic pattern of a grid. A frequency analyzing section performs frequency analysis on the radiation image to obtain a frequency spectrum of the radiation image. A peak determining section determines a peak within the frequency spectrum to be a target of processing. A first judging section measures the width of the peak which is the target of processing, and judges the quality of the grid based on the measured width of the peak.
    Type: Application
    Filed: November 13, 2016
    Publication date: May 18, 2017
    Applicant: FUJIFILM Corporation
    Inventor: Satoshi NAITO