Patents by Inventor Toru Matsunobu

Toru Matsunobu 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).

  • Encoding method, decoding method, encoding apparatus, and decoding apparatus
    Patent number: 11375210
    Abstract: An image encoding method including: a constraint information generating step of generating tile constraint information indicating whether or not there is a constraint in filtering on boundaries between adjacent tiles among a plurality of tiles obtained by dividing a picture, and storing the tile constraint information into a sequence parameter set; and a filter information generating step of generating, for each of the boundaries, one of a plurality of filter information items respectively indicating whether or not filtering is executed on the boundaries, and storing the plurality of filter information items into a plurality of picture parameter sets, wherein, in the filter information generating step, the plurality of filter information items which indicate identical content are generated when the tile constraint information indicates that there is the constraint in the filtering.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: June 28, 2022
    Assignee: SUN PATENT TRUST
    Inventors: Hisao Sasai, Takahiro Nishi, Youji Shibahara, Toshiyasu Sugio, Kyoko Tanikawa, Toru Matsunobu, Kengo Terada
  • Arithmetic coding for information related to sample adaptive offset processing
    Patent number: 11375195
    Abstract: An image coding method includes: performing context arithmetic coding to consecutively code (i) first information indicating whether or not to perform sample adaptive offset (SAO) processing for a first region of an image and (ii) second information indicating whether or not to use, in the SAO processing for the first region, information on SAO processing for a region other than the first region, the context arithmetic coding being arithmetic coding using a variable probability, the SAO processing being offset processing on a pixel value; and performing bypass arithmetic coding to code other information which is information on the SAO processing for the first region and different from the first information or the second information, after the first information and the second information are coded, the bypass arithmetic coding being arithmetic coding using a fixed probability.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: June 28, 2022
    Assignee: SUN PATENT TRUST
    Inventors: Toru Matsunobu, Takahiro Nishi, Youji Shibahara, Hisao Sasai, Kyoko Tanikawa, Toshiyasu Sugio, Kengo Terada
  • Image decoding method and image decoding apparatus using candidate motion vectors
    Patent number: 11368710
    Abstract: A decoding method and apparatus are provided. A first candidate having a first motion vector that has been used to decode a first block, a first prediction direction that corresponds to the first motion vector, and a first reference picture index that identifies a first reference picture is derived. A second candidate having a second motion vector that has been used to decode a second block, a second prediction direction that corresponds to the second motion vector, and a second reference picture index that identifies a second reference picture is derived. When a total number of candidates is less than a maximum number, a third candidate is derived by combining the first motion vector and the first reference picture index for the first prediction direction of the first candidate and the second motion vector and the second reference picture index for the second prediction direction of the second candidate.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: June 21, 2022
    Assignee: Velos Media, LLC
    Inventors: Toshiyasu Sugio, Takahiro Nishi, Youji Shibahara, Kyoko Tanikawa, Hisao Sasai, Toru Matsunobu
  • IMAGE CODING METHOD, IMAGE DECODING METHOD, IMAGE CODING APPARATUS, IMAGE DECODING APPARATUS, AND IMAGE CODING AND DECODING APPARATUS
    Publication number: 20220191516
    Abstract: An image coding method of coding an image on a per coding unit basis, the method comprising: applying a frequency transform to luminance data and chrominance data of transform units in the coding unit including predetermined blocks each corresponding to one or more of the transform units; and coding the luminance data and the chrominance data to which the frequency transform has been applied to generate a bitstream in which the luminance data and the chrominance data are grouped on a per predetermined block basis.
    Type: Application
    Filed: February 28, 2022
    Publication date: June 16, 2022
    Inventors: Kengo TERADA, Takahiro NISHI, Youji SHIBAHARA, Kyoko TANIKAWA, Hisao SASAI, Toshiyasu SUGIO, Toru MATSUNOBU
  • Image coding method, image decoding method, image coding apparatus, image decoding apparatus, and image coding and decoding apparatus
    Patent number: 11356691
    Abstract: An image coding method includes: writing, into a sequence parameter set, buffer description defining information for defining a plurality of buffer descriptions; selecting one of the buffer descriptions for each processing unit that is a picture or a slice, and writing buffer description selecting information for specifying the selected buffer description, into a first header of the processing unit which is included in the coded bitstream; and coding the processing unit using the selected buffer description, and the buffer description defining information includes long-term information for identifying, among a plurality of reference pictures indicated in the buffer descriptions, a reference picture to be assigned as a long-term reference picture.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: June 7, 2022
    Assignee: SUN PATENT TRUST
    Inventors: Viktor Wahadaniah, Chong Soon Lim, Sue Mon Thet Naing, Hai Wei Sun, Takahiro Nishi, Hisao Sasai, Youji Shibahara, Toshiyasu Sugio, Kyoko Tanikawa, Toru Matsunobu, Kengo Terada
  • Image coding method, image decoding method, image coding apparatus, and image decoding apparatus
    Patent number: 11356696
    Abstract: An image coding method includes: deriving a candidate for a motion vector predictor from a co-located motion vector; adding the candidate to a list; selecting the motion vector predictor from the list; and coding a current block and coding a current motion vector, wherein the deriving includes: deriving the candidate by a first derivation scheme in the case of determining that each of a current reference picture and a co-located reference picture is a long-term reference picture; and deriving the candidate by a second derivation scheme in the case of determining that each of the current reference picture and the co-located reference picture is a short-term reference picture.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: June 7, 2022
    Assignee: SUN PATENT TRUST
    Inventors: Viktor Wahadaniah, Chong Soon Lim, Sue Mon Thet Naing, Hai Wei Sun, Toshiyasu Sugio, Takahiro Nishi, Hisao Sasai, Youji Shibahara, Kyoko Tanikawa, Toru Matsunobu, Kengo Terada
  • Moving picture coding method, moving picture coding apparatus, moving picture decoding method, moving picture decoding apparatus, and moving picture coding and decoding apparatus
    Patent number: 11356669
    Abstract: A moving picture coding apparatus includes an intra-inter prediction unit which calculates a second motion vector by performing a scaling process on a first motion vector of a temporally neighboring corresponding block, when selectively adding, to a list, a motion vector of each of one or more corresponding blocks each of which is either a block included in a current picture to be coded and spatially neighboring a current block to be coded or a block included in a picture other than the current picture and temporally neighboring the current block, determines whether the second motion vector has a magnitude that is within a predetermined magnitude or not within the predetermined magnitude, and adds the second motion vector to the list when the intra-inter prediction unit determines that the second motion vector has a magnitude that is within the predetermined magnitude range.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: June 7, 2022
    Assignee: Velos Media, LLC
    Inventors: Toshiyasu Sugio, Takahiro Nishi, Youji Shibahara, Kyoko Tanikawa, Hisao Sasai, Toru Matsunobu, Kengo Terada
  • Image decoding method, image coding method, image decoding apparatus, image coding apparatus, and image coding and decoding apparatus
    Patent number: 11356666
    Abstract: The image coding method includes: determining a context in a current block in the image, from among a plurality of contexts; and performing arithmetic coding on the control parameter for the current block to generate a bitstream corresponding to the current block, wherein in the determining: the context is determined under a condition that control parameters of neighboring blocks of the current block are used, when the signal type is a first type, the neighboring blocks being a left block and an upper block of the current block; and the context is determined under a condition that the control parameter of the upper block is not used, when the signal type is a second type, and the second type is (i) “merge_flag”, (ii) “ref_idx_l0” or “ref_idx_l1”, (iii) “inter_pred_flag”, (iv) “mvd_l0” or “mvd_l1”, (v) “no_residual_data_flag”, (vi) “intra_chroma_pred_mode”, (vii) “cbf_luma”, and (viii) “cbf_cb” or “cbf_cr”.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: June 7, 2022
    Assignee: SUN PATENT TRUST
    Inventors: Hisao Sasai, Takahiro Nishi, Youji Shibahara, Toshiyasu Sugio, Kyoko Tanikawa, Toru Matsunobu
  • Image decoding method, image coding method, image decoding apparatus, image coding apparatus, and image coding and decoding apparatus
    Patent number: 11343518
    Abstract: The image decoding method includes determining a context for use in a current block to be processed, from among a plurality of contexts, wherein in the determining: the context is determined under a condition that control parameters of a left block and an upper block are used, when the signal type is a first type; and the context is determined under a third condition that the control parameter of the upper block is not used and a hierarchical depth of a data unit to which the control parameter of the current block belongs is used, when the signal type is a third type, and the third type is one or more of (i) “merge_flag”, (ii) “ref_idx_l0” or “ref_idx_l1”, (iii) “inter_pred_flag”, (iv) “mvd_l0” or “mvd_l1”, (v) “intra_chroma_pred_mode”, (vi) “cbf_luma”, and (vii) “cbf_cb” or “cbf_cr”.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: May 24, 2022
    Assignee: SUN PATENT TRUST
    Inventors: Hisao Sasai, Takahiro Nishi, Youji Shibahara, Toshiyasu Sugio, Kyoko Tanikawa, Toru Matsunobu
  • Image coding method for encoding a difference motion vector into and decoding a difference motion vector from a bitstream
    Patent number: 11330292
    Abstract: An image coding method includes coding a motion vector difference indicating a difference between the motion vector and a predicted motion vector, wherein the coding includes: coding a first portion that is a part of a first component which is one of a horizontal component and a vertical component of the motion vector difference; coding a second portion that is a part of a second component which is different from the first component and is the other one of the horizontal component and the vertical component; coding a third portion that is a part of the first component and is different from the first portion; coding a fourth portion that is a part of the second component and is different from the second portion; and generating a code string which includes the first portion, the second portion, the third portion, and the fourth portion in the stated order.
    Type: Grant
    Filed: July 28, 2019
    Date of Patent: May 10, 2022
    Assignee: Velos Media, LLC
    Inventors: Hisao Sasai, Takahiro Nishi, Youji Shibahara, Toshiyasu Sugio, Kyoko Tanikawa, Toru Matsunobu
  • Reconstruction method, reconstruction device, and generation device
    Patent number: 11328479
    Abstract: A generation device includes: a communication interface via which two-dimensional (2D) images are to be received, the 2D images having been generated by photographing a space from different viewpoints with at least one camera; and a processor connected to the communication interface and configured to determine, according to the 2D images, a matching pattern to match feature points included in two pictures among the 2D images, match the feature points according to the matching pattern in order to generate first three-dimensional (3D) points, the first 3D points indicating respective first positions in the space, generate second 3D point based on the 2D images, the second 3D point indicating a second position in the space, and generate a 3D model of the space based on the first 3D points and the second 3D point.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: May 10, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Zhen Peng Bian, Pongsak Lasang, Toshiyasu Sugio, Toru Matsunobu, Satoshi Yoshikawa, Tatsuya Koyama
  • THREE-DIMENSIONAL DISPLACEMENT MEASURING METHOD AND THREE-DIMENSIONAL DISPLACEMENT MEASURING DEVICE
    Publication number: 20220138971
    Abstract: A three-dimensional displacement measuring method includes: calculating camera parameters of N cameras based on M correction images shot at M viewpoints by cameras including the N cameras, where N is an integer greater than 1 and M is an integer greater than N, the M viewpoints being mutually different; and measuring a displacement over time of a subject caused by vibration of the subject in a three-dimensional space, based on (1) sets of N images and (2) the camera parameters. The N images in each of the sets are generated by the N cameras shooting the subject at the same time, and the sets are generated at different times. The different times are set according to a frequency of the vibration of the subject.
    Type: Application
    Filed: January 18, 2022
    Publication date: May 5, 2022
    Inventors: Toru MATSUNOBU, Toshiyasu SUGIO, Satoshi YOSHIKAWA, Masaki FUKUDA, Kensho TERANISHI
  • THREE-DIMENSIONAL MODEL GENERATION METHOD AND THREE-DIMENSIONAL MODEL GENERATION DEVICE
    Publication number: 20220114785
    Abstract: A three-dimensional model generation method includes: generating a first three-dimensional model of a predetermined region from first frames; projecting the first three-dimensional model onto at least one second frame; and generating a second three-dimensional model in accordance with first pixels in the at least one second frame onto which the first three-dimensional model is not projected.
    Type: Application
    Filed: December 23, 2021
    Publication date: April 14, 2022
    Inventors: Kensho TERANISHI, Toru MATSUNOBU, Toshiyasu SUGIO, Satoshi YOSHIKAWA, Masaki FUKUDA
  • THREE-DIMENSIONAL MODEL DISTRIBUTION METHOD AND THREE-DIMENSIONAL MODEL DISTRIBUTION DEVICE
    Publication number: 20220116579
    Abstract: A three-dimensional model distribution method includes: distributing a first model, which is a three-dimensional model of a target space in a target time period, in a first distribution mode; and distributing a second model, which is a three-dimensional model of the target space in the target time period and makes a smaller change per unit time than the first model, in a second distribution mode different from the first distribution mode.
    Type: Application
    Filed: December 21, 2021
    Publication date: April 14, 2022
    Inventors: Toshiyasu SUGIO, Toru MATSUNOBU, Satoshi YOSHIKAWA, Tatsuya KOYAMA, Yoichi SUGINO
  • DISPLAY METHOD AND DISPLAY DEVICE FOR PROVIDING SURROUNDING INFORMATION BASED ON DRIVING CONDITION
    Publication number: 20220108523
    Abstract: A display method is a display method performed by a display device that operates in conjunction with a mobile object, and includes: determining which one of first surrounding information, which is video showing a surrounding condition of the mobile object and is generated using two-dimensional information, and second surrounding information, which is video showing the surrounding condition of the mobile object and is generated using three-dimensional data, is to be displayed, based on a driving condition of the mobile object; and displaying the one of the first surrounding information and the second surrounding information that is determined to be displayed.
    Type: Application
    Filed: December 17, 2021
    Publication date: April 7, 2022
    Inventors: Tatsuya KOYAMA, Takahiro NISHI, Toshiyasu SUGIO, Tadamasa TOMA, Satoshi YOSHIKAWA, Toru MATSUNOBU
  • Reconstruction method, reconstruction device, and generation method for generating a three-dimensional (3D) model
    Patent number: 11295516
    Abstract: A generation method is disclosed. Two-dimensional (2D) images that are generated by photographing a space from different viewpoints with at least one camera are obtained. Resolutions of the 2D images are reduced to generate first images, respectively. Second images are generated from the 2D images, respectively such that a resolution of each of the second images is higher than a resolution of any one of the first images. First three-dimensional (3D) points are generated based on the first images. The first 3D points indicate respective first positions in the space. A second 3D point is generated based on the second images. The second 3D point indicates a second position in the space. A 3D model of the space is generated based on the first 3D points and the second 3D point.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: April 5, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Zhen Peng Bian, Pongsak Lasang, Toshiyasu Sugio, Toru Matsunobu, Satoshi Yoshikawa, Tatsuya Koyama
  • Image coding method, image decoding method, image coding apparatus, image decoding apparatus, and image coding and decoding apparatus
    Patent number: 11297333
    Abstract: An image coding method of coding an image on a per coding unit basis, the method comprising: applying a frequency transform to luminance data and chrominance data of transform units in the coding unit including predetermined blocks each corresponding to one or more of the transform units; and coding the luminance data and the chrominance data to which the frequency transform has been applied to generate a bitstream in which the luminance data and the chrominance data are grouped on a per predetermined block basis.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: April 5, 2022
    Assignee: SUN PATENT TRUST
    Inventors: Kengo Terada, Takahiro Nishi, Youji Shibahara, Kyoko Tanikawa, Hisao Sasai, Toshiyasu Sugio, Toru Matsunobu
  • IMAGE CODING APPARATUS FOR CODING TILE BOUNDARIES
    Publication number: 20220094934
    Abstract: An image decoding apparatus obtain pieces of coded data that is included in a bitstream and generated by coding tiles. Tile boundary independence information is further obtained from the bitstream, with the tile boundary independence information indicating whether each of boundaries between the tiles is one of a first boundary or a second boundary. The pieces of coded data are decoded to generate image data of the tiles. Image data of a first tile is generated by decoding a first code string included in first coded data with reference to decoding information of a decoded tile when the tile boundary independence information indicates the first boundary, and by decoding the first code string without referring to the decoding information of the decoded tile when the tile boundary independence information indicates the second boundary.
    Type: Application
    Filed: December 2, 2021
    Publication date: March 24, 2022
    Applicant: Sun Patent Trust
    Inventors: Daisaku KOMIYA, Takahiro NISHI, Youji SHIBAHARA, Hisao SASAI, Toshiyasu SUGIO, Kyoko TANIKAWA, Toru MATSUNOBU
  • PICTURE CODING METHOD, PICTURE CODING APPARATUS, PICTURE DECODING METHOD, AND PICTURE DECODING APPARATUS
    Publication number: 20220094952
    Abstract: A picture coding method includes: performing a first derivation process for deriving a first merging candidate which includes a candidate set of a prediction direction, a motion vector, and a reference picture index for use in coding of a current block; performing a second derivation process for deriving a second merging candidate; selecting a merging candidate to be used in the coding of the current block from among the first and second merging candidates; and attaching an index for identifying the selected merging candidate to the bitstream; wherein the first derivation process is performed so that a total number of the first merging candidates does not exceed a predetermined number, and the second derivation process is performed when the total number of the first merging candidates is less than a predetermined maximum number of merging candidates.
    Type: Application
    Filed: December 1, 2021
    Publication date: March 24, 2022
    Inventors: Toshiyasu SUGIO, Takahiro NISHI, Youji SHIBAHARA, Kyoko TANIKAWA, Hisao SASAI, Toru MATSUNOBU, Kengo TERADA
  • Three-dimensional model distribution method and three-dimensional model distribution device
    Patent number: 11240483
    Abstract: A three-dimensional model distribution method includes: distributing a first model, which is a three-dimensional model of a target space in a target time period, in a first distribution mode; and distributing a second model, which is a three-dimensional model of the target space in the target time period and makes a smaller change per unit time than the first model, in a second distribution mode different from the first distribution mode.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: February 1, 2022
    Inventors: Toshiyasu Sugio, Toru Matsunobu, Satoshi Yoshikawa, Tatsuya Koyama, Yoichi Sugino