Patents by Inventor Naoto Date

Naoto Date 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: 9131249
    Abstract: According to one embodiment, a moving image encoding apparatus includes a calculation unit, a selection unit, and a compression unit. The calculation unit calculates, for each unit of processing, amounts of code using plural variable length compression modes, the variable length compression modes having compression rates different from each other. The selection unit selects a compression mode in which an accumulated amount of code is smaller than or equal to a predetermined amount of code, the compression mode being selected from the variable length compression modes and a fixed length compression mode on the basis of the amounts of code calculated for the variable length compression modes and an amount of code obtained when the image data is compressed by the fixed length compression mode. The compression unit compresses the unit of processing of image data by the compression mode selected and generates compressed data.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: September 8, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Naoto Date, Shinichiro Koto
  • Patent number: 8953862
    Abstract: According to one embodiment, a radiation detection data processing apparatus includes a data acquisition unit and a data processing unit. The data acquisition unit acquires a radiation detection data from a detector detecting radiation. The data processing unit generates a compressed data to be used for reconstruction of a tomographic image, compression distortion in the compressed data is nearly uniform independently of a signal value from the radiation detection data.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: February 10, 2015
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Naoto Date, Shinichiro Koto, Hiroaki Nakai
  • Patent number: 8649623
    Abstract: According to one embodiment, an encoding apparatus includes a first quantizer, a second quantizer, a predictor and a calculator. The first quantizer quantizes an input block to obtain a first quantized block. The second quantizer quantizes a reference pixel to obtain at least one quantized value. The predictor predicts each target pixel in the first quantized block using the at least one quantized value and a quantized value of a pixel that is to be decoded preceding the target pixel in decoding order in the first quantized block to obtain a second quantized block. The calculator calculates a difference between the first quantized block and the second quantized block.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: February 11, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Naoto Date, Shinichiro Koto
  • Publication number: 20130058552
    Abstract: According to one embodiment, a radiation detection data processing apparatus includes a data acquisition unit and a data processing unit. The data acquisition unit acquires a radiation detection data from a detector detecting radiation. The data processing unit generates a compressed data to be used for reconstruction of a tomographic image, compression distortion in the compressed data is nearly uniform independently of a signal value from the radiation detection data.
    Type: Application
    Filed: August 27, 2012
    Publication date: March 7, 2013
    Applicants: Toshiba Medical Systems Corporation, Kabushiki Kaisha Toshiba
    Inventors: Naoto DATE, Shinichiro Koto, Hiroaki Nakai
  • Publication number: 20130011075
    Abstract: According to one embodiment, an encoding apparatus includes a first quantizer, a second quantizer, a predictor and a calculator. The first quantizer quantizes an input block to obtain a first quantized block. The second quantizer quantizes a reference pixel to obtain at least one quantized value. The predictor predicts each target pixel in the first quantized block using the at least one quantized value and a quantized value of a pixel that is to be decoded preceding the target pixel in decoding order in the first quantized block to obtain a second quantized block. The calculator calculates a difference between the first quantized block and the second quantized block.
    Type: Application
    Filed: September 13, 2012
    Publication date: January 10, 2013
    Inventors: Naoto Date, Shinichiro Koto
  • Patent number: 8090029
    Abstract: A fade detection unit performs fade detection, and in a case where a judgment of fade-in has been made, an encoding control unit notifies a motion detection unit to perform encoding in a reverse order to a display order. The fade detection unit performs the fade detection, and in the case where the judgment of the fade-in or fade-out has been made, the encoding control unit notifies the motion detection unit to perform encoding while importance is attached to a prediction from an image having a larger information amount in a B picture.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: January 3, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Naoto Date, Wataru Asano, Shinichiro Koto
  • Publication number: 20110206130
    Abstract: According to one embodiment, an image transmission apparatus includes a video processor. The video processor is configured to generate video data by applying one of first to fourth video processing to a predetermined unit image, the first to fourth video processing being (a) the first video processing of generating the predetermined unit image as the video data, (b) the second video processing of generating the video data by compressing the predetermined unit image, (c) the third video processing of performing a subsampling processing of performing pixel-separation of the predetermined unit image into subsampled images in accordance with pixel phases, and of generating each of the subsampled images as the video data, and (d) the fourth video processing of performing the subsampling processing of separating the predetermined unit image into the subsampled images in accordance with pixel phases, and of generating the video data by compressing each of the subsampled images.
    Type: Application
    Filed: May 2, 2011
    Publication date: August 25, 2011
    Inventors: Shinichiro KOTO, Naoto DATE
  • Publication number: 20110164678
    Abstract: According to one embodiment, a moving image encoding apparatus includes a calculation unit, a selection unit, and a compression unit. The calculation unit calculates, for each unit of processing, amounts of code using plural variable length compression modes, the variable length compression modes having compression rates different from each other. The selection unit selects a compression mode in which an accumulated amount of code is smaller than or equal to a predetermined amount of code, the compression mode being selected from the variable length compression modes and a fixed length compression mode on the basis of the amounts of code calculated for the variable length compression modes and an amount of code obtained when the image data is compressed by the fixed length compression mode. The compression unit compresses the unit of processing of image data by the compression mode selected and generates compressed data.
    Type: Application
    Filed: March 15, 2011
    Publication date: July 7, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Naoto DATE, Shinichiro Koto
  • Patent number: 7916788
    Abstract: A motion picture encoding method includes searching for a first motion vector between an object block of an input motion picture and a reference image for a frame-based prediction mode, searching for a second motion vector between the object block and the reference image for a field-based prediction mode, generating a first and second predictive residuals in accordance with the first and second motion vector, extracting a first and second feature quantities indicating a first and second similarity between lines of the first and second predictive residual, selecting the frame-based prediction mode in a case where the first similarity is larger than the second similarity based on the first and the second feature quantity, selecting the field-based prediction mode in a case where the second similarity is larger than the first similarity, and inter-frame-coding the input motion picture in accordance with the selected prediction mode.
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: March 29, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Wataru Asano, Shinichiro Koto, Naoto Date
  • Publication number: 20090010623
    Abstract: According to one embodiment, an information encoding method generates main image information from input image information by applying noise reduction processing to the input image information, estimates noise image information included in the input image information from the input image information and the main image information to generate first model information corresponding to the noise image information, corrects a parameter which does not satisfy a predetermined condition of a plurality of parameters included in the first model information to generate second model information including the plurality of parameters which reflect the correction, encodes the main image information to generate encoded image information, and generates encoded information including the encoded image information, the first model information, and the second model information.
    Type: Application
    Filed: February 26, 2008
    Publication date: January 8, 2009
    Inventors: Naoto Date, Tomoo Yamakage, Mieko Onodera
  • Publication number: 20070058719
    Abstract: A fade detection unit performs fade detection, and in a case where a judgment of fade-in has been made, an encoding control unit notifies a motion detection unit to perform encoding in a reverse order to a display order. The fade detection unit performs the fade detection, and in the case where the judgment of the fade-in or fade-out has been made, the encoding control unit notifies the motion detection unit to perform encoding while importance is attached to a prediction from an image having a larger information amount in a B picture.
    Type: Application
    Filed: April 26, 2006
    Publication date: March 15, 2007
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Naoto Date, Wataru Asano, Shinichiro Koto
  • Publication number: 20070036217
    Abstract: A motion picture encoding method includes searching for a first motion vector between an object block of an input motion picture and a reference image for a frame-based prediction mode, searching for a second motion vector between the object block and the reference image for a field-based prediction mode, generating a first and second predictive residuals in accordance with the first and second motion vector, extracting a first and second feature quantities indicating a first and second similarity between lines of the first and second predictive residual, selecting the frame-based prediction mode in a case where the first similarity is larger than the second similarity based on the first and the second feature quantity, selecting the field-based prediction mode in a case where the second similarity is larger than the first similarity, and inter-frame-coding the input motion picture in accordance with the selected prediction mode.
    Type: Application
    Filed: March 21, 2006
    Publication date: February 15, 2007
    Inventors: Wataru Asano, Shinichiro Koto, Naoto Date