Patents by Inventor Kazuo Sugimoto

Kazuo Sugimoto 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: 20160021379
    Abstract: A variable length encoding unit 13 variable-length-encodes an index indicating a classification method of carrying out a class classification on each coding block having a largest size, the classification method being determined by a loop filter unit 11, and also variable-length-encodes a parameter about an offset value for each class determined for each coding block having the largest size on the basis of a binarization process using a truncated unary code.
    Type: Application
    Filed: April 3, 2013
    Publication date: January 21, 2016
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Akira MINEZAWA, Kazuo SUGIMOTO, Norimichi HIWASA, Shunichi SEKIGUCHI
  • Patent number: 9210426
    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: June 5, 2012
    Date of Patent: December 8, 2015
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shunichi Sekiguchi, Kazuo Sugimoto, Hiroharu Sakate, Tokumichi Murakami, Akira Minezawa
  • Publication number: 20150319463
    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: May 8, 2015
    Publication date: November 5, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shunichi SEKIGUCHI, Kazuo SUGIMOTO, Hiroharu SAKATE, Tokumichi MURAKAMI, Akira MINEZAWA
  • Publication number: 20150304677
    Abstract: An image encoding device include a predicting unit for adaptively determining the size of each motion prediction unit block according to color component signals, and for dividing each motion prediction unit block into motion vector allocation regions to search for a motion vector, and a variable length encoding unit for, when a motion vector is allocated to the whole of each motion prediction unit block, performing encoding in mc_skip mode if the motion vector is equal to an estimated vector and a prediction error signal does not exist, and for, when each motion vector allocation region has a size equal to or larger than a predetermined size and a motion vector is allocated to the whole of each motion vector allocation region, performing encoding in sub_mc_skip mode if the motion vector is equal to an estimated vector and a prediction error signal does not exist.
    Type: Application
    Filed: February 19, 2015
    Publication date: October 22, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shunichi SEKIGUCHI, Kazuo SUGIMOTO, Yusuke ITANI, Akira MINEZAWA, Yoshiaki KATO
  • Publication number: 20150281725
    Abstract: When an encoding mode corresponding to one of blocks to be encoded into which an image is divided by a block dividing part 2 is an inter encoding mode which is a direct mode, a motion-compensated prediction part 5 selects a motion vector suitable for generation of a prediction image from one or more selectable motion vectors and also carries out a motion-compensated prediction process on the block to be encoded to generate a prediction image by using the motion vector, and outputs index information showing the motion vector to a variable length encoding part 13, and the variable length encoding unit 13 variable-length-encodes the index information.
    Type: Application
    Filed: February 4, 2015
    Publication date: October 1, 2015
    Inventors: Yusuke ITANI, Shunichi SEKIGUCHI, Kazuo SUGIMOTO
  • Publication number: 20150271502
    Abstract: A motion-compensated prediction unit 6 is configured in such a way as to, when the coding unit of a coding target picture differs from that of a reference picture, correct a reference vector held by a reference picture and derive a prediction vector from the corrected reference vector. As a result, application to the HEVC can be achieved even when the encoding based on a per frame basis and the encoding based on a per field basis coexist.
    Type: Application
    Filed: September 27, 2013
    Publication date: September 24, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Ryoji Hattori, Kazuo Sugimoto, Akira Minezawa, Shunichi Sekiguchi, Norimichi Hiwasa, Yoshimi Moriya
  • Publication number: 20150264383
    Abstract: A method decodes blocks in pictures of a video in an encoded bitstream by storing previously decoded blocks in a buffer. The previously decoded blocks are displaced less than a predetermined range relative to a current block being decoded. Cached blocks are maintained in a cache. The cached blocks include a set of best matching previously decoded blocks that are displaced greater than the predetermined range relative to the current block. The bitstream is parsed to obtain a prediction indicator that determines whether the current block is predicted from the previously decoded blocks in the buffer or the cached blocks in the cache. Based on the prediction indicator, a prediction residual block is generated, and in a summation process, the prediction residual block is added to a reconstructed residual block to form a decoded block as output.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 17, 2015
    Applicant: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Robert A. Cohen, Anthony Vetro, Kazuo Sugimoto
  • Publication number: 20150256827
    Abstract: There is a problem that when performing field encoding on an interlaced signal, the space resolution in a vertical direction is reduced to one half and the correlation between pixels degrades, and, as a result, the prediction efficiency of intra prediction and the coding efficiency of orthogonal transformation coefficients degrade. In accordance with the present invention, there is provided an intra predictor that when a flag based on information showing whether or not field encoding is performed is valid, in case of a horizontal prediction, does not perform a filtering process on a prediction block at a time of performing an intra prediction process according to the horizontal prediction, but in case of a mean value prediction, performs a filtering process only on the left edge of the prediction block at a time of performing an intra prediction process according to the mean value prediction.
    Type: Application
    Filed: September 6, 2013
    Publication date: September 10, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Akira Minezawa, Kazuo Sugimoto, Shunichi Sekiguchi
  • Publication number: 20150245032
    Abstract: When an encoding mode corresponding to one of blocks to be encoded into which an image is divided by a block dividing part 2 is an inter encoding mode which is a direct mode, a motion-compensated prediction part 5 selects a motion vector suitable for generation of a prediction image from one or more selectable motion vectors and also carries out a motion-compensated prediction process on the block to be encoded to generate a prediction image by using the motion vector, and outputs index information showing the motion vector to a variable length encoding part 13, and the variable length encoding unit 13 variable-length-encodes the index information.
    Type: Application
    Filed: February 4, 2015
    Publication date: August 27, 2015
    Inventors: Yusuke ITANI, Shunichi SEKIGUCHI, Kazuo SUGIMOTO
  • Publication number: 20150245057
    Abstract: When an encoding mode corresponding to one of blocks to be encoded into which an image is divided by a block dividing part 2 is an inter encoding mode which is a direct mode, a motion-compensated prediction part 5 selects a motion vector suitable for generation of a prediction image from one or more selectable motion vectors and also carries out a motion-compensated prediction process on the block to be encoded to generate a prediction image by using the motion vector, and outputs index information showing the motion vector to a variable length encoding part 13, and the variable length encoding unit 13 variable-length-encodes the index information.
    Type: Application
    Filed: February 4, 2015
    Publication date: August 27, 2015
    Inventors: Yusuke ITANI, Shunichi SEKIGUCHI, Kazuo SUGIMOTO
  • Publication number: 20150245023
    Abstract: When carrying out an intra-frame prediction process to generate an intra prediction image by using an already-encoded image signal in a frame, an intra prediction part 4 selects a filter from one or more filters which are prepared in advance according to the states of various parameters associated with the encoding of a target block to be filtered, and carries out a filtering process on a prediction image by using the filter. As a result, prediction errors which occur locally can be reduced, and the image quality can be improved.
    Type: Application
    Filed: February 27, 2015
    Publication date: August 27, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Akira MINEZAWA, Shunichi SEKIGUCHI, Kazuo SUGIMOTO
  • Publication number: 20150245035
    Abstract: When an encoding mode corresponding to one of blocks to be encoded into which an image is divided by a block dividing part 2 is an inter encoding mode which is a direct mode, a motion-compensated prediction part 5 selects a motion vector suitable for generation of a prediction image from one or more selectable motion vectors and also carries out a motion-compensated prediction process on the block to be encoded to generate a prediction image by using the motion vector, and outputs index information showing the motion vector to a variable length encoding part 13, and the variable length encoding unit 13 variable-length-encodes the index information.
    Type: Application
    Filed: February 4, 2015
    Publication date: August 27, 2015
    Inventors: Yusuke ITANI, Shunichi SEKIGUCHI, Kazuo SUGIMOTO
  • Publication number: 20150245022
    Abstract: When carrying out an intra-frame prediction process to generate an intra prediction image by using an already-encoded image signal in a frame, an intra prediction part 4 selects a filter from one or more filters which are prepared in advance according to the states of various parameters associated with the encoding of a target block to be filtered, and carries out a filtering process on a prediction image by using the filter. As a result, prediction errors which occur locally can be reduced, and the image quality can be improved.
    Type: Application
    Filed: February 27, 2015
    Publication date: August 27, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Akira MINEZAWA, Shunichi SEKIGUCHI, Kazuo SUGIMOTO
  • Publication number: 20150237379
    Abstract: When carrying out an intra-frame prediction process to generate an intra prediction image by using an already-encoded image signal in a frame, an intra prediction part 4 selects a filter from one or more filters which are prepared in advance according to the states of various parameters associated with the encoding of a target block to be filtered, and carries out a filtering process on a prediction image by using the filter. As a result, prediction errors which occur locally can be reduced, and the image quality can be improved.
    Type: Application
    Filed: February 27, 2015
    Publication date: August 20, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Akira MINEZAWA, Shunichi SEKIGUCHI, Kazuo SUGIMOTO
  • Publication number: 20150229949
    Abstract: An image encoding device include a predicting unit for adaptively determining the size of each motion prediction unit block according to color component signals, and for dividing each motion prediction unit block into motion vector allocation regions to search for a motion vector, and a variable length encoding unit for, when a motion vector is allocated to the whole of each motion prediction unit block, performing encoding in mc_skip mode if the motion vector is equal to an estimated vector and a prediction error signal does not exist, and for, when each motion vector allocation region has a size equal to or larger than a predetermined size and a motion vector is allocated to the whole of each motion vector allocation region, performing encoding in sub_mc_skip mode if the motion vector is equal to an estimated vector and a prediction error signal does not exist.
    Type: Application
    Filed: February 19, 2015
    Publication date: August 13, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shunichi SEKIGUCHI, Kazuo SUGIMOTO, Yusuke ITANI, Akira MINEZAWA, Yoshiaki KATO
  • Publication number: 20150229946
    Abstract: An image encoding device include a predicting unit for adaptively determining the size of each motion prediction unit block according to color component signals, and for dividing each motion prediction unit block into motion vector allocation regions to search for a motion vector, and a variable length encoding unit for, when a motion vector is allocated to the whole of each motion prediction unit block, performing encoding in mc_skip mode if the motion vector is equal to an estimated vector and a prediction error signal does not exist, and for, when each motion vector allocation region has a size equal to or larger than a predetermined size and a motion vector is allocated to the whole of each motion vector allocation region, performing encoding in sub_mc_skip mode if the motion vector is equal to an estimated vector and a prediction error signal does not exist.
    Type: Application
    Filed: February 19, 2015
    Publication date: August 13, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shunichi SEKIGUCHI, Kazuo SUGIMOTO, Yusuke ITANI, Akira MINEZAWA, Yoshiaki KATO
  • Publication number: 20150195582
    Abstract: Since time hierarchically encoded video data needs to include video data of a basic hierarchical layer, and video data cannot be generated in which a frame belonging to an upper hierarchical layer is only encoded, even in a case in which only a part of frames is processed, a basic hierarchical layer frame is needed to be included, and thus, there has been a problem that video data in which only the frame belonging to the upper hierarchical layer is encoded cannot be separately processed. In the present invention, a variable length encoding unit is disposed which encodes, for each sequence, a basic hierarchical layer existence flag showing whether or not a basic hierarchical layer is included in the sequence.
    Type: Application
    Filed: May 27, 2013
    Publication date: July 9, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshimi Moriya, Kazuo Sugimoto, Akira Minezawa, Shunichi Sekiguchi, Norimichi Hiwasa, Yusuke Itani, Ryoji Hattori
  • Publication number: 20150172724
    Abstract: When carrying out an intra-frame prediction process to generate an intra prediction image by using an already-encoded image signal in a frame, an intra prediction part 4 selects a filter from one or more filters which are prepared in advance according to the states of various parameters associated with the encoding of a target block to be filtered, and carries out a filtering process on a prediction image by using the filter. As a result, prediction errors which occur locally can be reduced, and the image quality can be improved.
    Type: Application
    Filed: February 27, 2015
    Publication date: June 18, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Akira MINEZAWA, Shunichi SEKIGUCHI, Kazuo SUGIMOTO
  • Patent number: 9036713
    Abstract: An image encoding device include a predicting unit for adaptively determining the size of each motion prediction unit block according to color component signals, and for dividing each motion prediction unit block into motion, vector allocation regions to search for a motion vector, and a variable length encoding unit for, when a motion vector is allocated to the whole of each motion prediction unit block, performing encoding in mc_skip mode if the motion vector is equal to an estimated vector and a prediction error signal does not exist, and for, when each motion vector allocation region has a size equal to or larger than a predetermined size and a motion vector is allocated to the whole of each motion vector allocation region, performing encoding in sub_mc_skip mode if the motion vector is equal to an estimated vector and a prediction error signal does not exist.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: May 19, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shunichi Sekiguchi, Kazuo Sugimoto, Yusuke Itani, Akira Minezawa, Yoshiaki Kato
  • Publication number: 20150085937
    Abstract: An image encoding device include a predicting unit for adaptively determining the size of each motion prediction unit block according to color component signals, and for dividing each motion prediction unit block into motion, vector allocation regions to search for a motion vector, and a variable length encoding unit for, when a motion vector is allocated to the whole of each motion prediction unit block, performing encoding in mc_skip mode if the motion vector is equal to an estimated vector and a prediction error signal does not exist, and for, when each motion vector allocation region has a size equal to or larger than a predetermined size and a motion vector is allocated to the whole of each motion vector allocation region, performing encoding in sub_mc_skip mode if the motion vector is equal to an estimated vector and a prediction error signal does not exist.
    Type: Application
    Filed: December 4, 2014
    Publication date: March 26, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shunichi SEKIGUCHI, Kazuo SUGIMOTO, Yusuke ITANI, Akira MINEZAWA, Yoshiaki KATO