Patents by Inventor Shunichi Sekiguchi

Shunichi Sekiguchi 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: 11006125
    Abstract: An image decoding device including an intra prediction unit for, when a coding mode for a coding block is an intra coding mode, carrying out an intra-frame prediction process on each of processing blocks to generate a prediction image, each of the processing blocks being the coding block or a sub-block obtained by dividing the coding block, wherein, when an intra prediction parameter indicates a vertical prediction process and a size of the processing block is less than a predetermined size, the intra prediction unit performs a specific processing and when the intra prediction parameter indicates the vertical prediction process and the size of the processing block is greater than or equal to the predetermined size, the intra prediction unit performs a specific processing.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: May 11, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Akira Minezawa, Kazuo Sugimoto, Shunichi Sekiguchi
  • Publication number: 20210136374
    Abstract: A macro block size determining unit 1 determines the size of each macro block on a frame-by-frame basis. A macro block dividing unit 2 divides an inputted image into macro blocks each having the size determined by the macro block size determining unit 1. A macro block coding unit 3 determines a coding mode for each of the macro blocks divided by the macro block dividing unit 2, and codes pixel values in each of the macro blocks in the determined coding mode.
    Type: Application
    Filed: January 15, 2021
    Publication date: May 6, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoshimi MORIYA, Shunichi SEKIGUCHI, Yoshihisa YAMADA, Kohtaro ASAI
  • Patent number: 10931946
    Abstract: When carrying out an average prediction, an intra predictor carries out a filtering process on target pixels of the intra prediction located at an upper end and a left end of the block, the filtering process using an intermediate prediction value, which is an average value of adjacent pixels of the block, and at least one adjacent pixel of the target pixel. The intra predictor also sets a filter coefficient to ¾, associated with the intermediate prediction value for a target pixel at the left end of the block other than the target pixel at an upper left corner of the block, and sets a filter coefficient to ¼, associated with the adjacent pixel adjacent to the left side of the target pixel at the left end of the block. As a result, prediction errors locally occurring can be reduced, and the image quality can be improved.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: February 23, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Akira Minezawa, Kazuo Sugimoto, Shunichi Sekiguchi
  • Publication number: 20210044822
    Abstract: When a coding mode selected by an encoding controlling part 1 is an intra prediction mode, an intra prediction part 4 carries out an intra-frame prediction process using pixels adjacent to a partition Pin which is generated through a division by a block dividing part 2 or pixels adjacent to a higher layer partition Pin?1 to which the partition Pin belongs to generate a prediction image (Pin).
    Type: Application
    Filed: September 24, 2020
    Publication date: February 11, 2021
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazuo SUGIMOTO, Shunichi SEKIGUCHI
  • Publication number: 20210044806
    Abstract: When removing a block distortion occurring in a local decoded image, a loop filtering part 11 of an image coding device carries out a filtering process on each of signal components (a luminance signal component and color difference signal components) after setting the intensity of a filter for removing the block distortion for each of the signal components according to a coding mode (an intra coding mode or an inter coding mode) selected by a coding controlling part 1.
    Type: Application
    Filed: October 29, 2020
    Publication date: February 11, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Shunichi SEKIGUCHI, Kazuo SUGIMOTO, Hiroharu SAKATE, Tokumichi MURAKAMI, Akira MINEZAWA
  • Patent number: 10863180
    Abstract: When removing a block distortion occurring in a local decoded image, a loop filtering part 11 of an image coding device carries out a filtering process on each of signal components (a luminance signal component and color difference signal components) after setting the intensity of a filter for removing the block distortion for each of the signal components according to a coding mode (an intra coding mode or an inter coding mode) selected by a coding controlling part 1.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: December 8, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shunichi Sekiguchi, Kazuo Sugimoto, Hiroharu Sakate, Tokumichi Murakami, Akira Minezawa
  • Patent number: 10827193
    Abstract: When a coding mode selected by an encoding controlling part 1 is an intra prediction mode, an intra prediction part 4 carries out an intra-frame prediction process using pixels adjacent to a partition Pin which is generated through a division by a block dividing part 2 or pixels adjacent to a higher layer partition Pin?1 to which the partition Pin belongs to generate a prediction image (Pin).
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: November 3, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazuo Sugimoto, Shunichi Sekiguchi
  • Patent number: 10820000
    Abstract: When a coding mode selected by an encoding controlling part 1 is an intra prediction mode, an intra prediction part 4 carries out an intra-frame prediction process using pixels adjacent to a partition Pin which is generated through a division by a block dividing part 2 or pixels adjacent to a higher layer partition Pin?1 to which the partition Pin belongs to generate a prediction image (Pin).
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: October 27, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazuo Sugimoto, Shunichi Sekiguchi
  • Patent number: 10820001
    Abstract: When a coding mode selected by an encoding controlling part 1 is an intra prediction mode, an intra prediction part 4 carries out an intra-frame prediction process using pixels adjacent to a partition Pin which is generated through a division by a block dividing part 2 or pixels adjacent to a higher layer partition Pin?1 to which the partition Pin belongs to generate a prediction image (Pin).
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: October 27, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazuo Sugimoto, Shunichi Sekiguchi
  • Publication number: 20200296361
    Abstract: A parallel processing starting unit 3 that partitions an inputted image into tiles each having a predetermined size, and distributes tiles obtained through the partitioning, and N tile encoding units 5-1 to 5-N each of that carries out a prediction difference encoding process on a tile distributed thereto by the parallel processing starting unit 3 to generate a local decoded image are disposed, and each of N tile loop filter units 7-1 to 7-N determines a filter per tile suitable for a filtering process on the local decoded image generated by the corresponding one of the tile encoding units 5-1 to 5-N, and carries out the filtering process on the local decoded image by using the filter.
    Type: Application
    Filed: June 2, 2020
    Publication date: September 17, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Ryoji HATTORI, Akira MINEZAWA, Yusuke ITANI, Kazuo SUGIMOTO, Shunichi SEKIGUCHI, Yoshimi MORIYA, Norimichi HIWASA
  • Patent number: 10728550
    Abstract: A macro block size determining unit 1 determines the size of each macro block on a frame-by-frame basis. A macro block dividing unit 2 divides an inputted image into macro blocks each having the size determined by the macro block size determining unit 1. A macro block coding unit 3 determines a coding mode for each of the macro blocks divided by the macro block dividing unit 2, and codes pixel values in each of the macro blocks in the determined coding mode.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: July 28, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yoshimi Moriya, Shunichi Sekiguchi, Yoshihisa Yamada, Kohtaro Asai
  • Patent number: 10708586
    Abstract: A parallel processing starting unit 3 that partitions an inputted image into tiles each having a predetermined size, and distributes tiles obtained through the partitioning, and N tile encoding units 5-1 to 5-N each of that carries out a prediction difference encoding process on a tile distributed thereto by the parallel processing starting unit 3 to generate a local decoded image are disposed, and each of N tile loop filter units 7-1 to 7-N determines a filter per tile suitable for a filtering process on the local decoded image generated by the corresponding one of the tile encoding units 5-1 to 5-N, and carries out the filtering process on the local decoded image by using the filter.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: July 7, 2020
    Assignee: MITSUBISHI ELECTRONIC CORPORATION
    Inventors: Ryoji Hattori, Akira Minezawa, Yusuke Itani, Kazuo Sugimoto, Shunichi Sekiguchi, Yoshimi Moriya, Norimichi Hiwasa
  • Patent number: 10643338
    Abstract: An object detection device includes: an optical flow calculator to calculate an optical flow between images captured by the image capturer at different times; an evaluation value calculator to divide the image captured by the image capturer into areas, and calculate, for each divided area, an evaluation value by using the optical flows of pixels belonging to the divided area, the evaluation value indicating a measure of a possibility that the divided area is an object area representing part or whole of the object to be detected; and an area determinator to determine an area in an image, in which the object to be detected exists, by comparing the evaluation value of each divided area calculated by the evaluation value calculator with a threshold value.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: May 5, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazuyuki Miyazawa, Shunichi Sekiguchi, Hideaki Maehara, Yoshimi Moriya, Akira Minezawa, Ryoji Hattori, Momoyo Nagase, Tomoya Sawada
  • Publication number: 20200092549
    Abstract: A parallel processing starting unit 3 that partitions an inputted image into tiles each having a predetermined size, and distributes tiles obtained through the partitioning, and N tile encoding units 5-1 to 5-N each of that carries out a prediction difference encoding process on a tile distributed thereto by the parallel processing starting unit 3 to generate a local decoded image are disposed, and each of N tile loop filter units 7-1 to 7-N determines a filter per tile suitable for a filtering process on the local decoded image generated by the corresponding one of the tile encoding units 5-1 to 5-N, and carries out the filtering process on the local decoded image by using the filter.
    Type: Application
    Filed: November 19, 2019
    Publication date: March 19, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Ryoji HATTORI, Akira MINEZAWA, Yusuke ITANI, Kazuo SUGIMOTO, Shunichi SEKIGUCHI, Yoshimi MORIYA, Norimichi HIWASA
  • Publication number: 20200068204
    Abstract: An image decoding device including an intra prediction unit for, when a coding mode for a coding block is an intra coding mode, carrying out an intra-frame prediction process on each of processing blocks to generate a prediction image, each of the processing blocks being the coding block or a sub-block obtained by dividing the coding block, wherein, when an intra prediction parameter indicates a vertical prediction process and a size of the processing block is less than a predetermined size, the intra prediction unit performs a specific processing and when the intra prediction parameter indicates the vertical prediction process and the size of the processing block is greater than or equal to the predetermined size, the intra prediction unit performs a specific processing.
    Type: Application
    Filed: October 18, 2019
    Publication date: February 27, 2020
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Akira MINEZAWA, Kazuo SUGIMOTO, Shunichi SEKIGUCHI
  • Patent number: 10554970
    Abstract: An encoding controlling unit 3 selects one transformation block size which provides an optimal degree of encoding efficiency from a set of transformation block sizes which are determined in accordance with an encoding mode 7, and includes the transformation block size selected thereby in optimal compression parameters 20a to notify the transformation block size to a transformation/quantization unit 19, and the transformation/quantization unit 19 divides an optimal prediction differential signal 13a into blocks having the transformation block size included in the optimal compression parameters 20a, and carries out a transformation and quantization process on each of the blocks to generate compressed data 21.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: February 4, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshimi Moriya, Shunichi Sekiguchi, Kazuo Sugimoto, Kohtaro Asai, Tokumichi Murakami
  • Patent number: 10523935
    Abstract: A parallel processing starting unit 3 that partitions an inputted image into tiles each having a predetermined size, and distributes tiles obtained through the partitioning, and N tile encoding units 5-1 to 5-N each of that carries out a prediction difference encoding process on a tile distributed thereto by the parallel processing starting unit 3 to generate a local decoded image are disposed, and each of N tile loop filter units 7-1 to 7-N determines a filter per tile suitable for a filtering process on the local decoded image generated by the corresponding one of the tile encoding units 5-1 to 5-N, and carries out the filtering process on the local decoded image by using the filter.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: December 31, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Ryoji Hattori, Akira Minezawa, Yusuke Itani, Kazuo Sugimoto, Shunichi Sekiguchi, Yoshimi Moriya, Norimichi Hiwasa
  • Publication number: 20190394480
    Abstract: When a coding mode selected by an encoding controlling part 1 is an intra prediction mode, an intra prediction part 4 carries out an intra-frame prediction process using pixels adjacent to a partition Pin which is generated through a division by a block dividing part 2 or pixels adjacent to a higher layer partition Pin?1 to which the partition Pin belongs to generate a prediction image (Pin).
    Type: Application
    Filed: August 20, 2019
    Publication date: December 26, 2019
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazuo SUGIMOTO, Shunichi SEKIGUCHI
  • Publication number: 20190394479
    Abstract: When a coding mode selected by an encoding controlling part 1 is an intra prediction mode, an intra prediction part 4 carries out an intra-frame prediction process using pixels adjacent to a partition Pin which is generated through a division by a block dividing part 2 or pixels adjacent to a higher layer partition Pin?1 to which the partition Pin belongs to generate a prediction image (Pin).
    Type: Application
    Filed: August 20, 2019
    Publication date: December 26, 2019
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazuo SUGIMOTO, Shunichi SEKIGUCHI
  • Publication number: 20190394481
    Abstract: When a coding mode selected by an encoding controlling part 1 is an intra prediction mode, an intra prediction part 4 carries out an intra-frame prediction process using pixels adjacent to a partition Pin which is generated through a division by a block dividing part 2 or pixels adjacent to a higher layer partition Pin?1 to which the partition Pin belongs to generate a prediction image (Pin).
    Type: Application
    Filed: August 20, 2019
    Publication date: December 26, 2019
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazuo SUGIMOTO, Shunichi SEKIGUCHI