Patents by Inventor Masayoshi Nishitani

Masayoshi Nishitani 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: 9781444
    Abstract: A first vector predictor candidate list generating unit generates a first motion vector predictor candidate list from motion vectors of encoded neighboring blocks to blocks to be encoded. A second vector predictor candidate list generating unit generates a second motion vector predictor candidate list from motion vectors of blocks at the same positions as the blocks to be encoded in an encoded image and neighboring blocks to the blocks at the same positions. A combination determining unit determines whether to generate a third vector predictor candidate list combining the first and second vector predictor candidate lists by comparison of a block size of the blocks to be encoded and a threshold size. A vector predictor candidate list deciding unit generates the third vector predictor candidate list from the first vector predictor candidate list.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: October 3, 2017
    Assignee: JVC KENWOOD Corporation
    Inventors: Hideki Takehara, Motoharu Ueda, Masayoshi Nishitani, Hiroya Nakamura, Satoru Sakazume, Kazumi Arakage, Shigeru Fukushima, Toru Kumakura
  • Patent number: 9743089
    Abstract: In a moving picture coding device that further divides a first block acquired by dividing each picture of a moving picture into a predetermined size into one or a plurality of second blocks and codes the moving picture in units of blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block by using the quantization parameter of one or a plurality of third blocks that are neighboring to the second block. The predictive quantization parameter deriving unit derives the predictive quantization parameter of the second block by using a quantization parameter of a fourth block coded before the second block in a case where the third block neighboring to the second block is located at a position beyond a boundary of the first block.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: August 22, 2017
    Assignee: JVC KENWOOD Corporation
    Inventors: Masayoshi Nishitani, Hiroya Nakamura, Shigeru Fukushima, Motoharu Ueda
  • Patent number: 9736491
    Abstract: A motion vector predictor candidate generation unit derives a plurality of motion vector predictor candidates by prediction from first coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding, or from a second coded prediction block located at the same position as or in the neighborhood of the prediction block subject to coding in a picture different from that of the prediction block subject to coding, and adds the derived motion vector predictor candidates in a motion vector predictor candidate. The motion vector predictor candidate generation unit determines, for the purpose of obtaining a predetermined number of motion vector predictor candidates, which of first coded prediction blocks provides the motion vector from which to derive the motion vector predictor candidate, organizing the blocks in the order of priority.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: August 15, 2017
    Assignee: JVC KENWOOD Corporation
    Inventors: Hiroya Nakamura, Masayoshi Nishitani, Shigeru Fukushima, Motoharu Ueda
  • Publication number: 20170230663
    Abstract: In a moving picture coding device that further divides a first block acquired by dividing each picture of a moving picture into a predetermined size into one or a plurality of second blocks and codes the moving picture in units of blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block by using the quantization parameter of one or a plurality of third blocks that are neighboring to the second block. The predictive quantization parameter deriving unit derives the predictive quantization parameter of the second block by using a quantization parameter of a fourth block coded before the second block in a case where the third block neighboring to the second block is located at a position beyond a boundary of the first block.
    Type: Application
    Filed: April 26, 2017
    Publication date: August 10, 2017
    Inventors: Masayoshi Nishitani, Hiroya Nakamura, Shigeru Fukushima, Motoharu Ueda
  • Publication number: 20170230664
    Abstract: In a moving picture coding device that further divides a first block acquired by dividing each picture of a moving picture into a predetermined size into one or a plurality of second blocks and codes the moving picture in units of blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block by using the quantization parameter of one or a plurality of third blocks that are neighboring to the second block. The predictive quantization parameter deriving unit derives the predictive quantization parameter of the second block by using a quantization parameter of a fourth block coded before the second block in a case where the third block neighboring to the second block is located at a position beyond a boundary of the first block.
    Type: Application
    Filed: April 26, 2017
    Publication date: August 10, 2017
    Inventors: Masayoshi Nishitani, Hiroya Nakamura, Shigeru Fukushima, Motoharu Ueda
  • Publication number: 20170230657
    Abstract: In a moving picture coding device that codes moving pictures in units of a block by partitioning a first block, which is obtained by partitioning each picture of the moving pictures into predetermined sizes, into one or a plurality of second blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block using quantization parameters of a third block adjacent to the left of the second block and a fourth block adjacent to the top of the second block. A differential quantization parameter generation unit generates a differential quantization parameter of the second block from a difference between the quantization parameter of the second block and the predictive quantization parameter. A first bitstream generation unit codes the differential quantization parameter of the second block.
    Type: Application
    Filed: April 21, 2017
    Publication date: August 10, 2017
    Inventors: Masayoshi Nishitani, Hiroya Nakamura, Shigeru Fukushima, Motoharu Ueda
  • Publication number: 20170230662
    Abstract: In a moving picture coding device that further divides a first block acquired by dividing each picture of a moving picture into a predetermined size into one or a plurality of second blocks and codes the moving picture in units of blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block by using the quantization parameter of one or a plurality of third blocks that are neighboring to the second block. The predictive quantization parameter deriving unit derives the predictive quantization parameter of the second block by using a quantization parameter of a fourth block coded before the second block in a case where the third block neighboring to the second block is located at a position beyond a boundary of the first block.
    Type: Application
    Filed: April 26, 2017
    Publication date: August 10, 2017
    Inventors: Masayoshi Nishitani, Hiroya Nakamura, Shigeru Fukushima, Motoharu Ueda
  • Publication number: 20170230659
    Abstract: In a moving picture coding device that codes moving pictures in units of a block by partitioning a first block, which is obtained by partitioning each picture of the moving pictures into predetermined sizes, into one or a plurality of second blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block using quantization parameters of a third block adjacent to the left of the second block and a fourth block adjacent to the top of the second block. A differential quantization parameter generation unit generates a differential quantization parameter of the second block from a difference between the quantization parameter of the second block and the predictive quantization parameter. A first bitstream generation unit codes the differential quantization parameter of the second block.
    Type: Application
    Filed: April 21, 2017
    Publication date: August 10, 2017
    Inventors: Masayoshi Nishitani, Hiroya Nakamura, Shigeru Fukushima, Motoharu Ueda
  • Publication number: 20170230658
    Abstract: In a moving picture coding device that codes moving pictures in units of a block by partitioning a first block, which is obtained by partitioning each picture of the moving pictures into predetermined sizes, into one or a plurality of second blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block using quantization parameters of a third block adjacent to the left of the second block and a fourth block adjacent to the top of the second block. A differential quantization parameter generation unit generates a differential quantization parameter of the second block from a difference between the quantization parameter of the second block and the predictive quantization parameter. A first bitstream generation unit codes the differential quantization parameter of the second block.
    Type: Application
    Filed: April 21, 2017
    Publication date: August 10, 2017
    Inventors: Masayoshi Nishitani, Hiroya Nakamura, Shigeru Fukushima, Motoharu Ueda
  • Publication number: 20170230661
    Abstract: In a moving picture coding device that further divides a first block acquired by dividing each picture of a moving picture into a predetermined size into one or a plurality of second blocks and codes the moving picture in units of blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block by using the quantization parameter of one or a plurality of third blocks that are neighboring to the second block. The predictive quantization parameter deriving unit derives the predictive quantization parameter of the second block by using a quantization parameter of a fourth block coded before the second block in a case where the third block neighboring to the second block is located at a position beyond a boundary of the first block.
    Type: Application
    Filed: April 26, 2017
    Publication date: August 10, 2017
    Inventors: Masayoshi Nishitani, Hiroya Nakamura, Shigeru Fukushima, Motoharu Ueda
  • Patent number: 9729895
    Abstract: A motion vector predictor candidate generation unit derives a plurality of motion vector predictor candidates by prediction from first coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding, or from a second coded prediction block located at the same position as or in the neighborhood of the prediction block subject to coding in a picture different from that of the prediction block subject to coding, and adds the derived motion vector predictor candidates in a motion vector predictor candidate. The motion vector predictor candidate generation unit determines, for the purpose of obtaining a predetermined number of motion vector predictor candidates, which of first coded prediction blocks provides the motion vector from which to derive the motion vector predictor candidate, organizing the blocks in the order of priority.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: August 8, 2017
    Assignee: JVC KENWOOD Corporation
    Inventors: Hiroya Nakamura, Masayoshi Nishitani, Shigeru Fukushima, Motoharu Ueda
  • Patent number: 9706208
    Abstract: In a first inter-image prediction mode in which information on a motion vector is used, a first mode detection unit constructs a first candidate list from a plurality of reference block candidates based on a first predetermined order, assigns indices for designating reference block candidates added in the first candidate list, and outputs the indices of the plurality of reference candidate blocks. In a second inter-image prediction mode in which is used a motion vector difference between a motion vector predictor based on information on a motion vector, and a motion vector of a coding target block, a second mode detection unit constructs a second candidate list from a plurality of reference block candidates based on a second predetermined order, assigns indices for designating reference block candidates added in the second candidate list, and outputs the indices of the plurality of reference block candidates and motion vector differences.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: July 11, 2017
    Assignee: JVC KENWOOD Corporation
    Inventors: Masayoshi Nishitani, Hiroya Nakamura, Hideki Takehara, Shigeru Fukushima
  • Publication number: 20170188043
    Abstract: A first vector predictor candidate list generating unit generates a first motion vector predictor candidate list from motion vectors of encoded neighboring blocks to blocks to be encoded. A second vector predictor candidate list generating unit generates a second motion vector predictor candidate list from motion vectors of blocks at the same positions as the blocks to be encoded in an encoded image and neighboring blocks to the blocks at the same positions. A combination determining unit determines whether to generate a third vector predictor candidate list combining the first and second vector predictor candidate lists by comparison of a block size of the blocks to be encoded and a threshold size. A vector predictor candidate list deciding unit generates the third vector predictor candidate list from the first vector predictor candidate list.
    Type: Application
    Filed: March 9, 2017
    Publication date: June 29, 2017
    Inventors: Hideki Takehara, Motoharu Ueda, Masayoshi Nishitani, Hiroya Nakamura, Satoru Sakazume, Kazumi Arakage, Shigeru Fukushima, Toru Kumakura
  • Publication number: 20170188044
    Abstract: A first vector predictor candidate list generating unit generates a first motion vector predictor candidate list from motion vectors of encoded neighboring blocks to blocks to be encoded. A second vector predictor candidate list generating unit generates a second motion vector predictor candidate list from motion vectors of blocks at the same positions as the blocks to be encoded in an encoded image and neighboring blocks to the blocks at the same positions. A combination determining unit determines whether to generate a third vector predictor candidate list combining the first and second vector predictor candidate lists by comparison of a block size of the blocks to be encoded and a threshold size. A vector predictor candidate list deciding unit generates the third vector predictor candidate list from the first vector predictor candidate list.
    Type: Application
    Filed: March 10, 2017
    Publication date: June 29, 2017
    Inventors: Hideki Takehara, Motoharu Ueda, Masayoshi Nishitani, Hiroya Nakamura, Satoru Sakazume, Kazumi Arakage, Shigeru Fukushima, Toru Kumakura
  • Patent number: 9667986
    Abstract: In a moving picture coding device that further divides a first block acquired by dividing each picture of a moving picture into a predetermined size into one or a plurality of second blocks and codes the moving picture in units of blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block by using the quantization parameter of one or a plurality of third blocks that are neighboring to the second block. The predictive quantization parameter deriving unit derives the predictive quantization parameter of the second block by using a quantization parameter of a fourth block coded before the second block in a case where the third block neighboring to the second block is located at a position beyond a boundary of the first block.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: May 30, 2017
    Assignee: JVC KENWOOD Corporation
    Inventors: Masayoshi Nishitani, Hiroya Nakamura, Shigeru Fukushima, Motoharu Ueda
  • Patent number: 9667989
    Abstract: In a moving picture coding device that codes moving pictures in units of a block by partitioning a first block, which is obtained by partitioning each picture of the moving pictures into predetermined sizes, into one or a plurality of second blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block using quantization parameters of a third block adjacent to the left of the second block and a fourth block adjacent to the top of the second block. A differential quantization parameter generation unit generates a differential quantization parameter of the second block from a difference between the quantization parameter of the second block and the predictive quantization parameter. A first bitstream generation unit codes the differential quantization parameter of the second block.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: May 30, 2017
    Assignee: JVC KENWOOD Corporation
    Inventors: Masayoshi Nishitani, Hiroya Nakamura, Shigeru Fukushima, Motoharu Ueda
  • Patent number: 9667973
    Abstract: A first vector predictor candidate list generating unit generates a first motion vector predictor candidate list from motion vectors of encoded neighboring blocks to blocks to be encoded. A second vector predictor candidate list generating unit generates a second motion vector predictor candidate list from motion vectors of blocks at the same positions as the blocks to be encoded in an encoded image and neighboring blocks to the blocks at the same positions. A combination determining unit determines whether to generate a third vector predictor candidate list combining the first and second vector predictor candidate lists by comparison of a block size of the blocks to be encoded and a threshold size. A vector predictor candidate list deciding unit generates the third vector predictor candidate list from the first vector predictor candidate list.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: May 30, 2017
    Assignee: JVC KENWOOD Corporation
    Inventors: Hideki Takehara, Motoharu Ueda, Masayoshi Nishitani, Hiroya Nakamura, Satoru Sakazume, Kazumi Arakage, Shigeru Fukushima, Toru Kumakura
  • Publication number: 20170150168
    Abstract: A motion vector predictor candidate generation unit derives a plurality of motion vector predictor candidates by prediction from first coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding, or from a second coded prediction block located at the same position as or in the neighborhood of the prediction block subject to coding in a picture different from that of the prediction block subject to coding, and adds the derived motion vector predictor candidates in a motion vector predictor candidate. The motion vector predictor candidate generation unit determines, for the purpose of obtaining a predetermined number of motion vector predictor candidates, which of first coded prediction blocks provides the motion vector from which to derive the motion vector predictor candidate, organizing the blocks in the order of priority.
    Type: Application
    Filed: January 10, 2017
    Publication date: May 25, 2017
    Inventors: Hiroya Nakamura, Masayoshi Nishitani, Shigeru Fukushima, Motoharu Ueda
  • Publication number: 20170150167
    Abstract: A motion vector predictor candidate generation unit derives a plurality of motion vector predictor candidates by prediction from first coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding, or from a second coded prediction block located at the same position as or in the neighborhood of the prediction block subject to coding in a picture different from that of the prediction block subject to coding, and adds the derived motion vector predictor candidates in a motion vector predictor candidate. The motion vector predictor candidate generation unit determines, for the purpose of obtaining a predetermined number of motion vector predictor candidates, which of first coded prediction blocks provides the motion vector from which to derive the motion vector predictor candidate, organizing the blocks in the order of priority.
    Type: Application
    Filed: January 10, 2017
    Publication date: May 25, 2017
    Inventors: Hiroya Nakamura, Masayoshi Nishitani, Shigeru Fukushima, Motoharu Ueda
  • Patent number: 9661342
    Abstract: In a moving picture coding device that codes moving pictures in units of a block by partitioning a first block, which is obtained by partitioning each picture of the moving pictures into predetermined sizes, into one or a plurality of second blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block using quantization parameters of a third block adjacent to the left of the second block and a fourth block adjacent to the top of the second block. A differential quantization parameter generation unit generates a differential quantization parameter of the second block from a difference between the quantization parameter of the second block and the predictive quantization parameter. A first bitstream generation unit codes the differential quantization parameter of the second block.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: May 23, 2017
    Assignee: JVC KENWOOD Corporation
    Inventors: Masayoshi Nishitani, Hiroya Nakamura, Shigeru Fukushima, Motoharu Ueda