Patents by Inventor Yukinobu Yasugi

Yukinobu Yasugi 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).

  • MOTION COMPENSATION FILTER APPARATUS, IMAGE DECODING APPARATUS, AND VIDEO CODING APPARATUS
    Publication number: 20200296404
    Abstract: To suppress an overhead of a flag indicating a motion compensation filter. A motion compensation filter apparatus includes a motion compensation filter unit configured to switch a filter to apply on a full sample image in a certain unit, and an MC filter parameter derivation unit configured to select a switching unit for filter switching by the motion compensation filter unit.
    Type: Application
    Filed: September 21, 2018
    Publication date: September 17, 2020
    Inventors: YUKINOBU YASUGI, TOMOHIRO IKAI, TAKESHI CHUJOH
  • Decoding Device, Encoding Device, Decoding Method, Encoding Method, and Non-Transitory Computer Readable Recording Medium
    Publication number: 20200288147
    Abstract: A coding device and a decoding device are configured to include an estimated prediction mode deciding section (122a) including: a reference block selecting section (1223a) for selecting a reference block for use in estimating an intra-prediction mode for a subject block; an estimating number deciding section (1222a) for deciding an estimating number of estimated values to be estimated for the intra-prediction mode; and an estimated prediction mode deriving section (1221a) for estimating, based on a reference block, the estimating number of estimated values of the prediction mode.
    Type: Application
    Filed: March 30, 2020
    Publication date: September 10, 2020
    Inventor: Yukinobu Yasugi
  • Offset decoding device, offset coding device, image filtering device
    Patent number: 10764580
    Abstract: An adaptive offset filter (60) adds an offset to the pixel value of each pixel forming an input image. The adaptive offset filter (60) refers to offset-type specifying information, sets offset attributes for a subject unit area of the input image, decodes an offset having a bit width corresponding to an offset value range included in the set offset attributes, and adds the offset to the pixel value of each pixel forming the input image.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: September 1, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Takanori Yamazaki, Tomohiro Ikai, Tomoyuki Yamamoto, Yukinobu Yasugi
  • Decoding device, an encoding device, and a decoding method using a uni-prediction or bi-predition scheme for inter-frame prediction
    Patent number: 10743024
    Abstract: To achieve a reduction in the amount of coding taken in the use of an asymmetric partition and to implement efficient encoding/decoding processes exploiting the characteristics of the asymmetric partition. An image decoding device includes a motion compensation parameter derivation unit configured to derive a motion compensation parameter indicating either a uni-prediction scheme or a bi-prediction scheme. In a case that a prediction unit has a size less than or equal to a predetermined value, the motion compensation parameter derivation unit is configured to derive the motion compensation parameter by switching between the prediction schemes.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: August 11, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tomoyuki Yamamoto, Tomohiro Ikai, Yukinobu Yasugi
  • VALUE LIMITING FILTER APPARATUS, VIDEO CODING APPARATUS, AND VIDEO DECODING APPARATUS
    Publication number: 20200236381
    Abstract: A value limiting filter includes a color space transform processing unit configured to transform an input image signal defined by a color space into an image signal of another color space, a clipping processing unit configured to perform processing of limiting a pixel value of the transformed image signal, and a color space inverse transform processing unit configured to transform the image signal having the limited pixel value into the image signal of the original color space.
    Type: Application
    Filed: September 21, 2018
    Publication date: July 23, 2020
    Inventors: Takeshi CHUJOH, Tomohiro IKAI, Tomoko AONO, Tomonori HASHIMOTO, Tianyang ZHOU, Yukinobu YASUGI
  • Image decoding device and image coding device
    Patent number: 10708609
    Abstract: A reference picture information decoding unit (13) omits decoding of a reference list sorting presence or absence flag and/or a reference list sorting order based on the number of current picture referable pictures.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: July 7, 2020
    Assignee: Dolby International AB
    Inventors: Tomoyuki Yamamoto, Tomohiro Ikai, Yukinobu Yasugi, Takeshi Tsukuba
  • IMAGE DECODING DEVICE, IMAGE DECODING METHOD, AND IMAGE ENCODING DEVICE
    Publication number: 20200204816
    Abstract: To achieve a reduction in the amount of coding taken in the use of an asymmetric partition and to implement efficient encoding/decoding processes exploiting the characteristics of the asymmetric partition. In a case that a CU information decoding unit decodes information for specifying an asymmetric partition (AMP; Asymmetric Motion Partition) as a partition type, an arithmetic decoding unit is configured to decode binary values by switching between arithmetic decoding that uses contexts and arithmetic decoding that does not use contexts in accordance with the position of the binary values.
    Type: Application
    Filed: March 4, 2020
    Publication date: June 25, 2020
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Tomoyuki YAMAMOTO, Tomohiro IKAI, Yukinobu YASUGI
  • IMAGE DECODING DEVICE AND IMAGE ENCODING DEVICE
    Publication number: 20200195970
    Abstract: An image decoding device (31) includes a transform coefficient decoding unit (311) configured to decode a transform coefficient for a transform tree included in a coding unit. In the transform tree, the transform coefficient decoding unit splits a transform unit corresponding to luminance and then decodes the transform coefficient related to the luminance, and does not split the transform unit corresponding to chrominance and decodes the transform coefficient related to the chrominance.
    Type: Application
    Filed: April 23, 2018
    Publication date: June 18, 2020
    Inventors: Tomohiro IKAI, Tomoko AONO, Yukinobu YASUGI, Tomonori HASHIMOTO
  • VIDEO ENCODING DEVICE AND VIDEO DECODING DEVICE
    Publication number: 20200177911
    Abstract: In a case of referring to information between pictures by means of inter prediction, the entire picture needs to be decoded even in a case of decoding a small region. In a case of referring to information within a picture by means of intra prediction, referring to information across a tile boundary is not possible. In a case that a pixel pointed by a sub-block level motion vector of a target block that is calculated by scaling based on an available motion vector acquired from a spatial neighboring block or a temporal neighboring block is not present within a tile sequence, a process of replacing the pixel value with a pixel value within the tile sequence is performed. In a case of referring to a pixel outside of a tile by means of intra prediction, a process of replacing the pixel value with that of a pixel within the tile is performed.
    Type: Application
    Filed: June 27, 2018
    Publication date: June 4, 2020
    Inventors: Tomoko AONO, Tomohiro IKAI, Takeshi CHUJOH, Tomonori HASHIMOTO, Yukinobu YASUGI
  • DECODING DEVICE, ENCODING DEVICE, AND DECODING METHOD
    Publication number: 20200154140
    Abstract: The amount of processing is reduced with high coding efficiency maintained. There is provided an arithmetic decoding device including syntax decoding means for decoding each of at least a first syntax element and a second syntax element indicating a transform coefficient using arithmetic decoding with a context or arithmetic decoding without a context. The syntax decoding means performs decoding that at least includes not decoding the first syntax element and decoding the second syntax element using the arithmetic decoding without a context, and decoding the first syntax element using the arithmetic decoding with a context and decoding the second syntax element using the arithmetic decoding without a context.
    Type: Application
    Filed: December 6, 2019
    Publication date: May 14, 2020
    Inventors: Tomohiro IKAI, Yukinobu YASUGI, Tomoyuki YAMAMOTO, Takeshi TSUKUBA
  • Image decoding device, image decoding method, and image encoding device
    Patent number: 10630999
    Abstract: To achieve a reduction in the amount of coding taken in the use of an asymmetric partition and to implement efficient encoding/decoding processes exploiting the characteristics of the asymmetric partition. In a case that a CU information decoding unit decodes information for specifying an asymmetric partition (AMP; Asymmetric Motion Partition) as a partition type, an arithmetic decoding unit is configured to decode binary values by switching between arithmetic decoding that uses contexts and arithmetic decoding that does not use contexts in accordance with the position of the binary values.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: April 21, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tomoyuki Yamamoto, Tomohiro Ikai, Yukinobu Yasugi
  • Decoding device, encoding device, decoding method, encoding method, and non-transitory computer readable recording medium
    Patent number: 10609386
    Abstract: A coding device and a decoding device are configured to include an estimated prediction mode deciding section (122a) including: a reference block selecting section (1223a) for selecting a reference block for use in estimating an intra-prediction mode for a subject block; an estimating number deciding section (1222a) for deciding an estimating number of estimated values to be estimated for the intra-prediction mode; and an estimated prediction mode deriving section (1221a) for estimating, based on a reference block, the estimating number of estimated values of the prediction mode.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: March 31, 2020
    Assignee: Velos Media, LLC
    Inventor: Yukinobu Yasugi
  • MOVING IMAGE CODING DEVICE, MOVING IMAGE DECODING DEVICE, MOVING IMAGE CODING/DECODING SYSTEM, MOVING IMAGE CODING METHOD AND MOVING IMAGE DECODING METHOD
    Publication number: 20200099929
    Abstract: A frequency transformation determination unit determines whether a plurality of adjacent transformation target regions with the partition boundary interposed therebetween are integrated or not. A transformation coefficient generation unit generates, by applying one frequency transformation, a transformation coefficient for the transformation target regions where the frequency transformation determination unit determined to integrate.
    Type: Application
    Filed: November 27, 2019
    Publication date: March 26, 2020
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yukinobu YASUGI, Hiroyuki KATATA
  • IMAGE DECODING DEVICE AND IMAGE CODING DEVICE
    Publication number: 20200077099
    Abstract: An image decoding device includes a context determination unit configured to determine a context of split information of a target block with reference to split-related information of at least one neighboring block adjacent to the target block; and a split information decoding unit configured to decode the split information of the target block by using the context determined by the context determination unit.
    Type: Application
    Filed: December 8, 2017
    Publication date: March 5, 2020
    Inventors: Tomohiro IKAI, Yukinobu YASUGI, Tomoko AONO
  • Decoding device, encoding device, and decoding method
    Patent number: 10547870
    Abstract: The amount of processing is reduced with high coding efficiency maintained. There is provided an arithmetic decoding device including syntax decoding means for decoding each of at least a first syntax element and a second syntax element indicating a transform coefficient using arithmetic decoding with a context or arithmetic decoding without a context. The syntax decoding means performs decoding that at least includes not decoding the first syntax element and decoding the second syntax element using the arithmetic decoding without a context, and decoding the first syntax element using the arithmetic decoding with a context and decoding the second syntax element using the arithmetic decoding without a context.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: January 28, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tomohiro Ikai, Yukinobu Yasugi, Tomoyuki Yamamoto, Takeshi Tsukuba
  • IMAGE DECODING APPARATUS AND IMAGE CODING APPARATUS
    Publication number: 20190364279
    Abstract: Complexity of coding/decoding of a video is reduced. An image decoding apparatus (31) includes a CN information decoder (10) configured to hierarchically split a coding node by at least any of binary tree split and ternary tree split. The CN information decoder refers to a method of splitting an immediately higher node, which is a node one generation higher than a target node, to restrict a method of splitting the target node.
    Type: Application
    Filed: December 13, 2017
    Publication date: November 28, 2019
    Inventors: Yukinobu YASUGI, Tomoko AONO, Tomohiro IKAI
  • OFFSET DECODING DEVICE, OFFSET CODING DEVICE, IMAGE FILTERING DEVICE
    Publication number: 20190349583
    Abstract: An adaptive offset filter (60) adds an offset to the pixel value of each pixel forming an input image. The adaptive offset filter (60) refers to offset-type specifying information, sets offset attributes for a subject unit area of the input image, decodes an offset having a bit width corresponding to an offset value range included in the set offset attributes, and adds the offset to the pixel value of each pixel forming the input image.
    Type: Application
    Filed: July 24, 2019
    Publication date: November 14, 2019
    Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
    Inventors: Takanori Yamazaki, Tomohiro Ikai, Tomoyuki Yamamoto, Yukinobu Yasugi
  • Offset decoding device, offset coding device, image filtering device
    Patent number: 10477209
    Abstract: An adaptive offset filter adds an offset to the pixel value of each pixel forming an input image. The adaptive offset filter refers to offset-type specifying information, sets offset attributes for a subject unit area of the input image, decodes an offset having a bit width corresponding to an offset value range included in the set offset attributes, and adds the offset to the pixel value of each pixel forming the input image.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: November 12, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Takanori Yamazaki, Tomohiro Ikai, Tomoyuki Yamamoto, Yukinobu Yasugi
  • INTRA PREDICTION IMAGE GENERATION APPARATUS, IMAGE DECODING APPARATUS, AND IMAGE CODING APPARATUS
    Publication number: 20190327466
    Abstract: To improve coding efficiency, an image decoding apparatus (31) is provided with a prediction image generation unit (308) configured to derive prediction parameters of multiple luminance blocks included in a target coding unit, derive multiple sub-block coordinates in a chrominance block corresponding to the target coding unit, and generate an intra prediction image with reference to the prediction parameters derived for the luminance block corresponding to each sub-block specified by each of the derived coordinates.
    Type: Application
    Filed: December 13, 2017
    Publication date: October 24, 2019
    Inventors: TOMOHIRO IKAI, YUKINOBU YASUGI, YOSHIYA YAMAMOTO, TOMONORI HASHIMOTO
  • Offset decoding device, offset coding device, image filtering device
    Patent number: 10440362
    Abstract: An adaptive offset filter (60) adds an offset to the pixel value of each pixel forming an input image. The adaptive offset filter (60) refers to offset-type specifying information, sets offset attributes for a subject unit area of the input image, decodes an offset having a bit width corresponding to an offset value range included in the set offset attributes, and adds the offset to the pixel value of each pixel forming the input image.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: October 8, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Takanori Yamazaki, Tomohiro Ikai, Tomoyuki Yamamoto, Yukinobu Yasugi