CA3119641A1 - Image decoding device, image decoding method, and image decoding program - Google Patents

Image decoding device, image decoding method, and image decoding program Download PDF

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Publication number
CA3119641A1
CA3119641A1 CA3119641A CA3119641A CA3119641A1 CA 3119641 A1 CA3119641 A1 CA 3119641A1 CA 3119641 A CA3119641 A CA 3119641A CA 3119641 A CA3119641 A CA 3119641A CA 3119641 A1 CA3119641 A1 CA 3119641A1
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Prior art keywords
merge candidate
prediction
motion vector
merge
unit
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Pending
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CA3119641A
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English (en)
French (fr)
Inventor
Hideki Takehara
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JVCKenwood Corp
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JVCKenwood Corp
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Publication date
Application filed by JVCKenwood Corp filed Critical JVCKenwood Corp
Priority to CA3250456A priority Critical patent/CA3250456A1/en
Priority claimed from PCT/JP2019/048855 external-priority patent/WO2020122224A1/ja
Publication of CA3119641A1 publication Critical patent/CA3119641A1/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/157Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51Motion estimation or motion compensation
    • H04N19/577Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136Incoming video signal characteristics or properties
    • H04N19/137Motion inside a coding unit, e.g. average field, frame or block difference
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/30Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/44Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51Motion estimation or motion compensation
    • H04N19/573Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51Motion estimation or motion compensation
    • H04N19/58Motion compensation with long-term prediction, i.e. the reference frame for a current frame not being the temporally closest one
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/103Selection of coding mode or of prediction mode
    • H04N19/105Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136Incoming video signal characteristics or properties
    • H04N19/137Motion inside a coding unit, e.g. average field, frame or block difference
    • H04N19/139Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51Motion estimation or motion compensation
    • H04N19/513Processing of motion vectors
    • H04N19/517Processing of motion vectors by encoding
    • H04N19/52Processing of motion vectors by encoding by predictive encoding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
CA3119641A 2018-12-13 2019-12-13 Image decoding device, image decoding method, and image decoding program Pending CA3119641A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA3250456A CA3250456A1 (en) 2018-12-13 2019-12-13 Image decoding device, image decoding method, and image decoding program

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2018233432 2018-12-13
JP2018-233432 2018-12-13
JP2019171782A JP6933235B2 (ja) 2018-12-13 2019-09-20 画像復号装置、画像復号方法、及び画像復号プログラム
JP2019-171782 2019-09-20
PCT/JP2019/048855 WO2020122224A1 (ja) 2018-12-13 2019-12-13 画像復号装置、画像復号方法、及び画像復号プログラム

Publications (1)

Publication Number Publication Date
CA3119641A1 true CA3119641A1 (en) 2020-06-18

Family

ID=71106633

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3119641A Pending CA3119641A1 (en) 2018-12-13 2019-12-13 Image decoding device, image decoding method, and image decoding program

Country Status (6)

Country Link
US (1) US11563935B2 (enExample)
JP (6) JP6933235B2 (enExample)
KR (1) KR102600108B1 (enExample)
CN (1) CN112514395B (enExample)
BR (1) BR112021005875B1 (enExample)
CA (1) CA3119641A1 (enExample)

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US12022106B2 (en) 2021-09-17 2024-06-25 Tencent America LLC Joint motion vector difference coding
CN115297333B (zh) * 2022-09-29 2023-03-24 北京达佳互联信息技术有限公司 视频数据的帧间预测方法、装置、电子设备及存储介质
WO2025176194A1 (en) * 2024-02-22 2025-08-28 Douyin Vision Co., Ltd. Method, apparatus, and medium for video processing
CN119094753B (zh) * 2024-08-01 2025-09-05 联通沃音乐文化有限公司 一种实时视频通信中丢包导致画面质量下降的修复方法

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JP5633597B2 (ja) * 2012-04-12 2014-12-03 株式会社Jvcケンウッド 動画像復号装置、動画像復号方法、動画像復号プログラム、受信装置、受信方法及び受信プログラム
RU2673846C1 (ru) * 2012-07-02 2018-11-30 Самсунг Электроникс Ко., Лтд. Способ и устройство для прогнозирования вектора движения для кодирования видео или декодирования видео
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Publication number Publication date
JP2020099037A (ja) 2020-06-25
JP2025083536A (ja) 2025-05-30
KR20210022756A (ko) 2021-03-03
CN112514395B (zh) 2023-07-21
JP7639957B2 (ja) 2025-03-05
JP7251584B2 (ja) 2023-04-04
CN112514395A (zh) 2021-03-16
JP7722430B2 (ja) 2025-08-13
KR102600108B1 (ko) 2023-11-08
BR112021005875B1 (pt) 2023-03-14
BR112021005875A2 (pt) 2021-07-27
JP2022003779A (ja) 2022-01-11
US20210211648A1 (en) 2021-07-08
JP2024001288A (ja) 2024-01-09
JP2024051143A (ja) 2024-04-10
JP2022046467A (ja) 2022-03-23
JP6933235B2 (ja) 2021-09-08
US11563935B2 (en) 2023-01-24
BR112021005875A8 (pt) 2022-08-02

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