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: 20170116717
    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: Application
    Filed: January 4, 2017
    Publication date: April 27, 2017
    Applicant: FUJIFILM Corporation
    Inventors: Satoshi NAITO, Takahiro KAWAMURA
  • Patent number: 9609316
    Abstract: To prevent deterioration in performance that is caused by the processing for copying a context parameter between memories, an image processing apparatus writes an updated context parameter into context memories corresponding to respective entropy coding units and into a shared context memory, until it completes encoding processing for M blocks positioned on the left side of a slice.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: March 28, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Satoshi Naito
  • Patent number: 9569826
    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: September 24, 2015
    Date of Patent: February 14, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Satoshi Naito, Takahiro Kawamura
  • Patent number: 9509997
    Abstract: A multi-viewpoint image which has been captured with respect to an object from a plurality of viewpoints is coded by setting a base viewpoint among the plurality of viewpoints. An image captured from a viewpoint that is not the base viewpoint is then coded using a reference image selected based on imaging parameters and a parallax.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: November 29, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Reiko Fujino, Satoshi Naito
  • Publication number: 20160267630
    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: May 20, 2016
    Publication date: September 15, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Satoshi NAITO, Takahiro KAWAMURA
  • Publication number: 20160235384
    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: Application
    Filed: April 28, 2016
    Publication date: August 18, 2016
    Applicant: 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: 20160235385
    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: Application
    Filed: April 28, 2016
    Publication date: August 18, 2016
    Applicant: 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: 9363432
    Abstract: For each of respective viewpoints, the capturing condition at the viewpoint, and each frame image captured from the viewpoint in accordance with the capturing condition are acquired. One of the viewpoints is selected as a reference viewpoint by using the acquired capturing conditions. Predicting coding and intra-coding are performed for the acquired images. For each of the respective viewpoints for each frame, the coding result of the frame image captured from the viewpoint by predicting coding or intra-coding is output. When performing predicting coding for an image captured from the reference viewpoint, predicting coding is performed by referring to the image captured from the reference viewpoint without referring to images captured from the viewpoints other than the reference viewpoint.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: June 7, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yuji Omori, Satoshi Naito
  • Publication number: 20160140720
    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: January 27, 2016
    Publication date: May 19, 2016
    Applicant: FUJIFILM Corporation
    Inventor: Satoshi NAITO
  • Publication number: 20160089104
    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: Application
    Filed: September 29, 2015
    Publication date: March 31, 2016
    Applicant: FUJIFILM CORPORATION
    Inventors: Satoshi NAITO, Takahiro KAWAMURA
  • Publication number: 20160093030
    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: Application
    Filed: September 24, 2015
    Publication date: March 31, 2016
    Applicant: FUJIFILM CORPORATION
    Inventors: Satoshi NAITO, Takahiro KAWAMURA
  • Publication number: 20160029041
    Abstract: An image coding method for an image coding apparatus includes determining an anchor picture in a same view as a picture to be coded, determining an anchor block corresponding to a block to be coded, selecting an inter-view prediction method, encoding an inter-view prediction mode indicating the inter-view prediction method, and calculating, using a parallax vector of the anchor block, a parallax vector of the block to be coded.
    Type: Application
    Filed: October 6, 2015
    Publication date: January 28, 2016
    Inventors: Mitsuru Maeda, Satoshi Naito
  • Publication number: 20150245069
    Abstract: An image decoding apparatus updates the value of a register holding the value of a coded block flag (CBF) at high speed. The image decoding apparatus initializes all the values of registers holding the values of CBFs to a predetermined initial value, before starting processing on each coding tree unit (CTU) in a picture. Only in a case where the value of a decoded CBF is different from the initial value, the image decoding apparatus updates the value of a register to the value of the decoded CBF.
    Type: Application
    Filed: February 18, 2015
    Publication date: August 27, 2015
    Inventor: Satoshi Naito
  • Patent number: 9008358
    Abstract: An image of a prescribed frame of images of respective frames is set as a target image, and an area including a prescribed pattern is detected from the target image as a specific area. An image other than the target image is set as a non-target image, and the specific area in the non-target image is predicted. The images of the respective frames are encoded so that the specific area is encoded to have higher image quality than an area other than the specific area. In encoding, the images of the respective frames are encoded so that the specific area in the non-target image is not referred to from another frame.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: April 14, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoshi Naito, Saku Hiwatashi
  • Publication number: 20140133581
    Abstract: To prevent deterioration in performance that is caused by the processing for copying a context parameter between memories, an image processing apparatus writes an updated context parameter into context memories corresponding to respective entropy coding units and into a shared context memory, until it completes encoding processing for M blocks positioned on the left side of a slice.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 15, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Satoshi Naito
  • Publication number: 20140105306
    Abstract: Upon completion of storing the predictive residual data and predictive image of a block having undergone inter-frame coding in a predictive residual data memory and predictive image memory respectively, the block is decoded by performing motion compensation using the predictive residual data and the predictive image.
    Type: Application
    Filed: September 17, 2013
    Publication date: April 17, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Satoshi Naito
  • Publication number: 20130335591
    Abstract: A multi-viewpoint image which has been captured with respect to an object from a plurality of viewpoints is coded by setting a base viewpoint among the plurality of viewpoints. An image captured from a viewpoint that is not the base viewpoint is then coded using a reference image selected based on imaging parameters and a parallax.
    Type: Application
    Filed: June 11, 2013
    Publication date: December 19, 2013
    Inventors: Reiko Fujino, Satoshi Naito
  • Publication number: 20130329080
    Abstract: For each of respective viewpoints, the capturing condition at the viewpoint, and each frame image captured from the viewpoint in accordance with the capturing condition are acquired. One of the viewpoints is selected as a reference viewpoint by using the acquired capturing conditions. Predicting coding and intra-coding are performed for the acquired images. For each of the respective viewpoints for each frame, the coding result of the frame image captured from the viewpoint by predicting coding or intra-coding is output. When performing predicting coding for an image captured from the reference viewpoint, predicting coding is performed by referring to the image captured from the reference viewpoint without referring to images captured from the viewpoints other than the reference viewpoint.
    Type: Application
    Filed: May 29, 2013
    Publication date: December 12, 2013
    Inventors: Yuji Omori, Satoshi Naito
  • Patent number: 8553991
    Abstract: A clustering processing apparatus comprises: N clustering units that group samples included in the data block into clusters, each clustering unit sequentially taking each sample as a target, grouping the target sample into one of the clusters within the data block, storing cluster information including identification on each cluster into which the samples are grouped within the data block, and storing sample assignment information indicating the cluster to which the target sample belongs; a cluster information transferring unit that selects cluster information on a cluster to be integrated from the cluster information when a predetermined condition is met, and transfers the selected cluster information to a third storage unit; and an updating unit that integrates clusters selected based on the cluster information stored in the third storage unit into an integrated cluster, and updates the sample assignment information based on information of the integrated clusters.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: October 8, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Satoshi Naito
  • Publication number: 20120294480
    Abstract: An image of a prescribed frame of images of respective frames is set as a target image, and an area including a prescribed pattern is detected from the target image as a specific area. An image other than the target image is set as a non-target image, and the specific area in the non-target image is predicted. The images of the respective frames are encoded so that the specific area is encoded to have higher image quality than an area other than the specific area. In encoding, the images of the respective frames are encoded so that the specific area in the non-target image is not referred to from another frame.
    Type: Application
    Filed: May 1, 2012
    Publication date: November 22, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Satoshi Naito, Saku Hiwatashi