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).

  • Optimized image decoding device and method for a predictive encoded BIT stream
    Patent number: 9930355
    Abstract: An image decoding device and method that set up a first skip mode and second skip mode for each motion prediction and block and its motion vector allocation regions, respectively, allowing for expressing a hierarchy of skip modes when decoding a video signal having a specific format and can be adaptive to the characteristics of a temporal change of each color component signal.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: March 27, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shunichi Sekiguchi, Kazuo Sugimoto, Yusuke Itani, Akira Minezawa, Yoshiaki Kato
  • Optimized image decoding device and method for a predictive encoded bit stream
    Patent number: 9930356
    Abstract: An image decoding device and method that set up a first skip mode and second skip mode for each motion prediction and block and its motion vector allocation regions, respectively, allowing for expressing a hierarchy of skip modes when decoding a video signal having a specific format and can be adaptive to the characteristics of a temporal change of each color component signal.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: March 27, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shunichi Sekiguchi, Kazuo Sugimoto, Yusuke Itani, Akira Minezawa, Yoshiaki Kato
  • IMAGE PROCESSING APPARATUS, IMAGE PROCESSING SYSTEM, AND IMAGE PROCESSING METHOD
    Publication number: 20180082436
    Abstract: An image processing apparatus (10) includes an image analyzer (12) that analyzes an input image to detect one or more objects appearing in the input image, and estimates quantities of one or more spatial features of the detected one or more objects; and a descriptor generator (13) that generates one or more spatial descriptors representing the estimated quantities of the one or more spatial features.
    Type: Application
    Filed: September 15, 2015
    Publication date: March 22, 2018
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Ryoji HATTORI, Yoshimi MORIYA, Kazuyuki MIYAZAWA, Akira MINEZAWA, Shunichi SEKIGUCHI
  • Optimized image decoding device and method for a predictive encoded bit stream
    Patent number: 9924190
    Abstract: An image decoding device and method that set up a first skip mode and second skip mode for each motion prediction and block and its motion vector allocation regions, respectively, allowing for expressing a hierarchy of skip modes when decoding a video signal having a specific format and can be adaptive to the characteristics of a temporal change of each color component signal.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: March 20, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shunichi Sekiguchi, Kazuo Sugimoto, Yusuke Itani, Akira Minezawa, Yoshiaki Kato
  • Image coding device, image decoding device, image coding method, and image decoding method
    Patent number: 9906795
    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 5, 2017
    Date of Patent: February 27, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shunichi Sekiguchi, Kazuo Sugimoto, Hiroharu Sakate, Tokumichi Murakami, Akira Minezawa
  • Moving image encoding device, moving image decoding device, moving image coding method, and moving image decoding method
    Patent number: 9900612
    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: Grant
    Filed: February 4, 2015
    Date of Patent: February 20, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yusuke Itani, Shunichi Sekiguchi, Kazuo Sugimoto
  • Moving image encoding device, moving image decoding device, moving image coding method, and moving image decoding method
    Patent number: 9900611
    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: Grant
    Filed: February 4, 2015
    Date of Patent: February 20, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yusuke Itani, Shunichi Sekiguchi, Kazuo Sugimoto
  • Moving image encoding device, moving image decoding device, moving image coding method, and moving image decoding method
    Patent number: 9894375
    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: Grant
    Filed: February 4, 2015
    Date of Patent: February 13, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yusuke Itani, Shunichi Sekiguchi, Kazuo Sugimoto
  • Moving image encoding device, moving image decoding device, moving image coding method, and moving image decoding method
    Patent number: 9894376
    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: Grant
    Filed: February 4, 2015
    Date of Patent: February 13, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yusuke Itani, Shunichi Sekiguchi, Kazuo Sugimoto
  • LEARNING DEVICE AND LEARNING DISCRIMINATION SYSTEM
    Publication number: 20180039822
    Abstract: A learning sample collector is configured to collect learning samples which have been classified into respective classes through N-classes discrimination (N is a natural number of 3 or more). A classifier is configured to reclassify the learning samples collected by the learning sample collector into classes applied to M-classes discrimination, where M is smaller than N (M is a natural number of 2 or more and is less than N). A learner is configured to learn a discriminator for performing the M-classes discrimination on a basis of the learning samples reclassified by the classifier.
    Type: Application
    Filed: August 20, 2015
    Publication date: February 8, 2018
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takayuki SEMITSU, Nobuaki MOTOYAMA, Shunichi SEKIGUCHI
  • IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE, IMAGE ENCODING METHOD, IMAGE DECODING METHOD, AND IMAGE PREDICTION DEVICE
    Publication number: 20170295377
    Abstract: When an intra prediction parameter indicates a horizontal prediction process, an intra prediction unit adds a value proportional to a change in a horizontal direction of the luminance values of pixels adjacent to the top of each block, which is a unit for prediction process of a coding block, to the luminance value of a pixel adjacent to the left of the block to set a result of the addition as a predicted value of a prediction image, whereas when the intra prediction parameter indicates a vertical prediction process, the intra prediction unit adds a value proportional to a change in a vertical direction of the luminance values of pixels adjacent to the left of the block to the luminance value of the pixel adjacent to the top of the block to set the result of the addition as a predicted value of the prediction image.
    Type: Application
    Filed: June 27, 2017
    Publication date: October 12, 2017
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Akira MINEZAWA, Kazuo SUGIMOTO, Shunichi SEKIGUCHI
  • Color image encoding device, color image decoding device, color image encoding method, and color image decoding method
    Patent number: 9774872
    Abstract: When the signal format of a color image is YUV4:2:2, and an intra prediction parameter, which is used for an intra-frame prediction process on the chrominance signals in a prediction block, shows the same prediction mode as an intra prediction mode for the luminance signal in the prediction block, an intra prediction unit 4 converts an index indicating the intra prediction mode for the luminance signal, and performs the intra-frame prediction process on the chrominance signals in an intra prediction mode indicated by the index after conversion.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: September 26, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Akira Minezawa, Ryoji Hattori, Takayuki Semitsu, Yoshimi Moriya, Norimichi Hiwasa, Shunichi Sekiguchi
  • IMAGE CODING DEVICE, IMAGE DECODING DEVICE, IMAGE CODING METHOD, AND IMAGE DECODING METHOD
    Publication number: 20170244971
    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: April 5, 2017
    Publication date: August 24, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Shunichi SEKIGUCHI, Kazuo SUGIMOTO, Hiroharu SAKATE, Tokumichi MURAKAMI, Akira MINEZAWA
  • Image encoding device, image decoding device, image encoding method, and image decoding method for generating a prediction image
    Patent number: 9736478
    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 ½, associated with the intermediate prediction value for a target pixel at an upper left corner of the block, and sets a filter coefficient to ¼, associated with an adjacent pixel adjacent to an upper side or a left side of the target pixel. As a result, prediction errors locally occurring can be reduced, and the image quality can be improved.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: August 15, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Akira Minezawa, Kazuo Sugimoto, Shunichi Sekiguchi
  • Image encoding device, image decoding device, image encoding method, image decoding method, and image prediction device
    Patent number: 9723316
    Abstract: When an intra prediction parameter indicates a horizontal prediction process, an intra prediction unit adds a value proportional to a change in a horizontal direction of the luminance values of pixels adjacent to the top of each block, which is a unit for prediction process of a coding block, to the luminance value of a pixel adjacent to the left of the block to set a result of the addition as a predicted value of a prediction image, whereas when the intra prediction parameter indicates a vertical prediction process, the intra prediction unit adds a value proportional to a change in a vertical direction of the luminance values of pixels adjacent to the left of the block to the luminance value of the pixel adjacent to the top of the block to set the result of the addition as a predicted value of the prediction image.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: August 1, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Akira Minezawa, Kazuo Sugimoto, Shunichi Sekiguchi
  • MOVING IMAGE ENCODING DEVICE AND MOVING IMAGE DECODING DEVICE BASED ON ADAPTIVE SWITCHING AMONG TRANSFORMATION BLOCK SIZES
    Publication number: 20170171543
    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: Application
    Filed: February 27, 2017
    Publication date: June 15, 2017
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yoshimi MORIYA, Shunichi SEKIGUCHI, Kazuo SUGIMOTO, Kohtaro ASAI, Tokumichi MURAKAMI
  • Image coding device, image decoding device, image coding method, and image decoding method
    Patent number: 9654773
    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: May 8, 2015
    Date of Patent: May 16, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shunichi Sekiguchi, Kazuo Sugimoto, Hiroharu Sakate, Tokumichi Murakami, Akira Minezawa
  • Image encoding device, image decoding device, image encoding method, and image decoding method for generating a prediction image
    Patent number: 9628797
    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 upper 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 upper side of the target pixel at the upper 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 21, 2015
    Date of Patent: April 18, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Akira Minezawa, Kazuo Sugimoto, Shunichi Sekiguchi
  • Image encoding device, image decoding device, image encoding method, and image decoding method for generating a prediction image
    Patent number: 9609326
    Abstract: When carrying out an average prediction, the 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 sets a filter coefficient to ½, associated with the intermediate prediction value for a target pixel at an upper left corner of the block, and sets a filter coefficient to ¼, associated with an adjacent pixel adjacent to an upper side or a left side of the target pixel. As a result, prediction errors locally occurring can be reduced, and the image quality can be improved.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: March 28, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Akira Minezawa, Kazuo Sugimoto, Shunichi Sekiguchi
  • MOVING IMAGE CODING APPARATUS AND MOVING IMAGE DECODING APPARATUS
    Publication number: 20170085874
    Abstract: A moving image encoding apparatus for dividing a moving image into a plurality of rectangular regions and encoding the moving image in a unit of the rectangular region. There is a rectangular region size determiner which determines a variable size of the rectangular region, a rectangular region divider which divides an inputted image into the rectangular region, and a rectangular region encoder which determines a coding mode for the rectangular region, and encodes pixel values in the rectangular region.
    Type: Application
    Filed: December 7, 2016
    Publication date: March 23, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoshimi Moriya, Shunichi Sekiguchi, Yoshihisa Yamada, Kohtaro Asai