Patents by Inventor Satoshi Shimada

Satoshi Shimada 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: 20160198176
    Abstract: A video encoding apparatus appends decoding delay correction information and display delay correction information to encoded video data in order to ensure that even when one or more pictures that are later in encoding order in the video data than a first picture that may potentially be spliced to a trailing end of other encoded video data have been discarded, the first picture and subsequent pictures in the encoded video data can be continuously decoded and displayed by a video decoding apparatus. The video decoding apparatus corrects the decoding delay and display delay of the first picture and its subsequent pictures by using the decoding delay correction information and display delay correction information.
    Type: Application
    Filed: March 17, 2016
    Publication date: July 7, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Kimihiko KAZUI, Satoshi SHIMADA, Junpei KOYAMA
  • Publication number: 20160198177
    Abstract: A video encoding apparatus appends decoding delay correction information and display delay correction information to encoded video data in order to ensure that even when one or more pictures that are later in encoding order in the video data than a first picture that may potentially be spliced to a trailing end of other encoded video data have been discarded, the first picture and subsequent pictures in the encoded video data can be continuously decoded and displayed by a video decoding apparatus. The video decoding apparatus corrects the decoding delay and display delay of the first picture and its subsequent pictures by using the decoding delay correction information and display delay correction information.
    Type: Application
    Filed: March 17, 2016
    Publication date: July 7, 2016
    Applicant: FUJITSU LIMITED, LTD
    Inventors: Kimihiko KAZUI, Satoshi SHIMADA, Junpei KOYAMA
  • Publication number: 20160198178
    Abstract: A video encoding apparatus appends decoding delay correction information and display delay correction information to encoded video data in order to ensure that even when one or more pictures that are later in encoding order in the video data than a first picture that may potentially be spliced to a trailing end of other encoded video data have been discarded, the first picture and subsequent pictures in the encoded video data can be continuously decoded and displayed by a video decoding apparatus. The video decoding apparatus corrects the decoding delay and display delay of the first picture and its subsequent pictures by using the decoding delay correction information and display delay correction information.
    Type: Application
    Filed: March 17, 2016
    Publication date: July 7, 2016
    Inventors: Kimihiko KAZUI, Satoshi SHIMADA, Junpei KOYAMA
  • Publication number: 20160198179
    Abstract: A video encoding apparatus appends decoding delay correction information and display delay correction information to encoded video data in order to ensure that even when one or more pictures that are later in encoding order in the video data than a first picture that may potentially be spliced to a trailing end of other encoded video data have been discarded, the first picture and subsequent pictures in the encoded video data can be continuously decoded and displayed by a video decoding apparatus. The video decoding apparatus corrects the decoding delay and display delay of the first picture and its subsequent pictures by using the decoding delay correction information and display delay correction information.
    Type: Application
    Filed: March 17, 2016
    Publication date: July 7, 2016
    Inventors: Kimihiko KAZUI, Satoshi SHIMADA, Junpei KOYAMA
  • Publication number: 20160156922
    Abstract: A video encoding apparatus appends decoding delay and display delay correction information to encoded video data in order to ensure that even when one or more pictures that are later in encoding order than a starting encoded picture in a video data stream to be spliced to a trailing end of another encoded video data stream have been discarded from among pictures contained in the video data stream, the starting encoded picture and its subsequent pictures can be continuously decoded and displayed by a video decoding apparatus. The correction information is calculated based on a decoding interval between each discarded picture and a picture that immediately precedes the discarded picture. The video decoding apparatus corrects the decoding delay and display delay of the starting encoded picture and its subsequent pictures by using the calculated correction information.
    Type: Application
    Filed: February 4, 2016
    Publication date: June 2, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Kimihiko KAZUI, Junpei KOYAMA, Satoshi SHIMADA
  • Publication number: 20160156920
    Abstract: A video encoding apparatus appends decoding delay and display delay correction information to encoded video data in order to ensure that even when one or more pictures that are later in encoding order than a starting encoded picture in a video data stream to be spliced to a trailing end of another encoded video data stream have been discarded from among pictures contained in the video data stream, the starting encoded picture and its subsequent pictures can be continuously decoded and displayed by a video decoding apparatus. The correction information is calculated based on a decoding interval between each discarded picture and a picture that immediately precedes the discarded picture. The video decoding apparatus corrects the decoding delay and display delay of the starting encoded picture and its subsequent pictures by using the calculated correction information.
    Type: Application
    Filed: February 4, 2016
    Publication date: June 2, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Kimihiko KAZUI, Junpei KOYAMA, Satoshi SHIMADA
  • Publication number: 20160156921
    Abstract: A video encoding apparatus appends decoding delay and display delay correction information to encoded video data in order to ensure that even when one or more pictures that are later in encoding order than a starting encoded picture in a video data stream to be spliced to a trailing end of another encoded video data stream have been discarded from among pictures contained in the video data stream, the starting encoded picture and its subsequent pictures can be continuously decoded and displayed by a video decoding apparatus. The correction information is calculated based on a decoding interval between each discarded picture and a picture that immediately precedes the discarded picture. The video decoding apparatus corrects the decoding delay and display delay of the starting encoded picture and its subsequent pictures by using the calculated correction information.
    Type: Application
    Filed: February 4, 2016
    Publication date: June 2, 2016
    Inventors: Kimihiko KAZUI, Junpei KOYAMA, Satoshi SHIMADA
  • Publication number: 20160134888
    Abstract: A video encoding apparatus includes: a buffer memory that stores encoded field pictures; a controller that adds reference pair information to each of multiple field pictures, the reference pair information specifying a field picture to be paired when creating a frame picture; a buffer interface that generates, when inter-predictive coding is performed by using, as a coding target picture, a frame picture created by interleaving two field pictures that are not encoded, a frame picture as a reference picture by interleaving the field pictures of the pair specified with reference to the reference pair information of a stored encoded field picture; and an encoder that generates, when the coding target picture is a frame picture, encoded data by performing inter-predictive coding on the coding target picture on a frame-picture-by-frame-picture basis by use of the reference picture.
    Type: Application
    Filed: January 15, 2016
    Publication date: May 12, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Kimihiko KAZUI, Satoshi SHIMADA, Guillaume Denis Christian Barroux
  • Patent number: 9319688
    Abstract: A moving image encoding apparatus configured to use an image one frame before a target image for encoding to calculate a filtering coefficient for each intra prediction mode of a decoded image from the decoded image and the original image, extracts a filtering coefficient to perform a filtering process to a reference pixel for intra prediction mode determination of a peripheral block of the target block for encoding according to the intra prediction mode of the peripheral block and to generate a reference image for intra prediction mode determination, uses the reference image for intra prediction mode determination to select an intra prediction mode for the target block for encoding, and generates an intra prediction image of the target block for encoding.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: April 19, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Xuying Lei, Hidenobu Miyoshi, Satoshi Shimada, Tomonori Kubota
  • Publication number: 20160088307
    Abstract: A method includes determining a group to which each of a plurality of blocks belongs, the plurality of blocks being obtained by dividing each picture included in video image data; adding, to an output stream, group information expressing the group to which each of the plurality of blocks belongs; calculating an output time for each of the groups; determining output delay for each of the groups; adding, to the output stream, an output delay time from a decode time of each of the groups; controlling an encode amount so that data used for outputting all of the blocks included in one of the groups arrives at a decoding buffer of a decoding device and decoding is completed by an output time expressed by the output delay time; and performing encoding based on the encode amount that has been controlled.
    Type: Application
    Filed: December 2, 2015
    Publication date: March 24, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Junpei KOYAMA, Kimihiko KAZUI, Satoshi Shimada, Akira NAKAGAWA
  • Patent number: 9282332
    Abstract: A video encoding apparatus includes: a reference vector deriving unit to derive as a reference vector a vector used when encoding a block that is near a block to be encoded and is included in a region where a field picture to be encoded is subjected to encode; a scaling unit to scale the reference vector based on a temporal distance between the field picture and a first encoded field picture specified by the reference vector and a temporal distance between the field picture and a second encoded field picture specified by a reference index and referenced by the block to be encoded in the field picture to generate a motion prediction vector; and a motion prediction vector correction unit to correct the motion prediction vector using a parity of the field picture, a parity of the first encoded field picture, and a parity of the second encoded field picture.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: March 8, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Junpei Koyama, Kimihiko Kazui, Satoshi Shimada, Akira Nakagawa, Akihiro Yamori
  • Patent number: 9247267
    Abstract: A video decoding apparatus includes a reference picture list storing unit configured to store picture information of pictures; a motion vector information storing unit configured to store motion vector information including motion vectors of blocks that are spatially and temporally adjacent to a target block to be decoded and reference picture identifiers indicating pictures that the motion vectors refer to; and a vector predictor generating unit configured to scale a vector predictor candidate for a motion vector of the target block based on the picture information and the motion vector information and to correct the scaled vector predictor candidate toward 0 by a predetermined amount.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: January 26, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Satoshi Shimada, Akira Nakagawa, Kimihiko Kazui, Junpei Koyama
  • Publication number: 20160014408
    Abstract: A video decoding apparatus includes a reference picture list storing unit configured to store picture information of pictures; a motion vector information storing unit configured to store motion vector information including motion vectors of blocks that are spatially and temporally adjacent to a target block to be decoded and reference picture identifiers indicating pictures that the motion vectors refer to; and a vector predictor generating unit configured to scale a vector predictor candidate for a motion vector of the target block based on the picture information and the motion vector information and to correct the scaled vector predictor candidate toward 0 by a predetermined amount.
    Type: Application
    Filed: September 17, 2015
    Publication date: January 14, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Satoshi Shimada, Akira Nakagawa, Kimihiko Kazui, Junpei Koyama
  • Patent number: 9237342
    Abstract: A method includes determining a group to which each of a plurality of blocks belongs, the plurality of blocks being obtained by dividing each picture included in video image data; adding, to an output stream, group information expressing the group to which each of the plurality of blocks belongs; calculating an output time for each of the groups; determining output delay for each of the groups; adding, to the output stream, an output delay time from a decode time of each of the groups; controlling an encode amount so that data used for outputting all of the blocks included in one of the groups arrives at a decoding buffer of a decoding device and decoding is completed by an output time expressed by the output delay time; and performing encoding based on the encode amount that has been controlled.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: January 12, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Junpei Koyama, Kimihiko Kazui, Satoshi Shimada, Akira Nakagawa
  • Patent number: 9191676
    Abstract: A video decoding apparatus according to one aspect of the disclosure performs a decoding process, on a process block basis, using a motion vector of the process block and prediction information candidates of the motion vector.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: November 17, 2015
    Assignee: FUJITSU LIMITED
    Inventors: Satoshi Shimada, Kimihiko Kazui, Junpei Koyama, Akira Nakagawa
  • Patent number: 9161685
    Abstract: The perimeter (2), which has a perimetry means (13) that measures the visual field of a test eye and outputs the results thereof as measurement results (MR), is configured by comprising: a measurement database memory (17) wherein multiple measurement results of previous visual field measurements are stored as a measurement database (MDB) in a form that is divided into a database (DB1) pertaining to normal eyes and a database (DB2) pertaining to eyes with glaucoma; a means (16) for assessing whether or not the measurement results (MR) for the test eye can be used as measurement results for normal eyes; and a means (15) that, when it is determined that the measurement results can be used as measurement results for normal eyes, adds the measurement results to the database (DB1) pertaining to normal eyes along with database search attribute data (data such as the subject's age, sex, race, visual acuity, refractive index, diagnosis, residence, date and time of examination, etc.).
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: October 20, 2015
    Assignee: KOWA COMPANY, LTD.
    Inventor: Satoshi Shimada
  • Patent number: 9155464
    Abstract: A visual field examination system measures the visual field of an eye. Quantitative information of a 3D retinal layer structure is acquired by detecting a range in which a peak of a retinal reflectance distribution obtained by OCT scanning is lost. A position of the fovea of the eye fundus is identified based on the acquired information. A location of a range in which the peak of the retinal reflectance distribution is lost is specified in a 2D fundus image based on the position of the fovea, and the specified location is marked on a region of the 2D fundus image. A position of the marked region is detected, and a visual inspection field region is generated based on the detection. Visual field examination points of the visual inspection field region are presented to the eye through a visual field dome for carrying out visual field examination of the eye.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: October 13, 2015
    Assignee: KOWA COMPANY LTD.
    Inventors: Shin Tanaka, Satoshi Shimada
  • Patent number: 9106917
    Abstract: A video encoding method and apparatus performing intra-frame prediction in units of a sub-block determined by any one of two or more block sizes is provided. The method includes generating a prediction image in each of a plurality of intra-frame prediction modes in units of the sub-block determined by each block size, calculating a first evaluation value on the basis of the difference images between an original image and the prediction images in the intra-frame prediction modes for the sub-blocks determined by each block size, accumulating values indicating frequency characteristics of the original image for the sub-blocks determined by each block size in units of a macroblock to obtain a second evaluation value, and selecting one of the two or more block sizes on the basis of the first evaluation values and the second evaluation values.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: August 11, 2015
    Assignee: FUJITSU LIMITED
    Inventor: Satoshi Shimada
  • Patent number: 9094672
    Abstract: A stereo picture generating device includes: a feature point extracting unit that extracts feature points from a first picture; a tracking unit that calculates coordinate of each point on a second picture corresponding to each of the feature points; a parameter determining unit that determines plane projective transformation coefficients which include at least one coefficient representing a rotational transfer component and at least one coefficient representing a translation component so as to minimize an evaluation value that includes distance between each of transformed feature points, which are obtained by plane-projective-transforming the feature points on the first picture, and the corresponding point on the second picture, and a weighting term having a value depending on the rotational transfer component; and a transforming unit that plane-projective-transforms the first picture by using the plane projective transformation coefficients, to generate a pair of plane-projective-transformed picture and the
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: July 28, 2015
    Assignee: FUJITSU LIMITED
    Inventor: Satoshi Shimada
  • Patent number: 9094683
    Abstract: A method includes extracting a first vector used to code a specific block belonging to a coded field picture arranged chronologically adjacent to a field picture to be coded and to a block to be coded, generating a second vector by scaling the first vector based on a temporal distance between the field picture and a second picture specified by a reference index and referenced for the block and included in the field picture and a temporal distance between a first picture pointed by the first vector and the coded field picture arranged chronologically adjacent to the field picture, and correcting the second vector based on a parity of the field picture, a parity of the first picture, a parity of the second picture and a parity of the coded field picture and forming the corrected second vector.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: July 28, 2015
    Assignee: FUJITSU LIMITED
    Inventors: Junpei Koyama, Akihiro Yamori, Kimihiko Kazui, Satoshi Shimada, Akira Nakagawa