CA3119641C - Image decoding device, image decoding method, and image decoding program - Google Patents

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

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Publication number
CA3119641C
CA3119641C CA3119641A CA3119641A CA3119641C CA 3119641 C CA3119641 C CA 3119641C CA 3119641 A CA3119641 A CA 3119641A CA 3119641 A CA3119641 A CA 3119641A CA 3119641 C CA3119641 C CA 3119641C
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Canada
Prior art keywords
prediction
merge candidate
motion vector
reference picture
merge
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CA3119641A
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English (en)
French (fr)
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CA3119641A1 (en
Inventor
Hideki Takehara
Original Assignee
JVCKenwood Corp
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Application filed by JVCKenwood Corp filed Critical JVCKenwood Corp
Priority to CA3250456A priority Critical patent/CA3250456C/en
Priority to CA3312645A priority patent/CA3312645A1/en
Priority claimed from PCT/JP2019/048855 external-priority patent/WO2020122224A1/ja
Publication of CA3119641A1 publication Critical patent/CA3119641A1/en
Application granted granted Critical
Publication of CA3119641C publication Critical patent/CA3119641C/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods 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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods 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
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/105—Selection 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods 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
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods 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
    • H04N19/17—Methods 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
    • H04N19/176—Methods 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/573—Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/58—Motion compensation with long-term prediction, i.e. the reference frame for a current frame not being the temporally closest one
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods 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
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/513—Processing of motion vectors
    • H04N19/517—Processing of motion vectors by encoding
    • H04N19/52—Processing of motion vectors by encoding by predictive encoding

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 Active CA3119641C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA3250456A CA3250456C (en) 2018-12-13 2019-12-13 Image decoding device, image decoding method, and image decoding program
CA3312645A CA3312645A1 (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
JP2018-233432 2018-12-13
JP2018233432 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

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA3250456A Division CA3250456C (en) 2018-12-13 2019-12-13 Image decoding device, image decoding method, and image decoding program

Publications (2)

Publication Number Publication Date
CA3119641A1 CA3119641A1 (en) 2020-06-18
CA3119641C true CA3119641C (en) 2026-06-09

Family

ID=71106633

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3119641A Active CA3119641C (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 (7) JP6933235B2 (enExample)
KR (1) KR102600108B1 (enExample)
CN (1) CN112514395B (enExample)
BR (1) BR112021005875B1 (enExample)
CA (1) CA3119641C (enExample)

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US12022106B2 (en) 2021-09-17 2024-06-25 Tencent America LLC Joint motion vector difference coding
US12120290B2 (en) * 2021-09-17 2024-10-15 Tencent America LLC Method and apparatus for intra block copy mode coding with search range switching
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
US20250247543A1 (en) * 2024-01-30 2025-07-31 Google Llc Spatial Motion Vector Prediction With Derived Motion Trajectory
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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KR102365353B1 (ko) * 2011-06-30 2022-02-23 가부시키가이샤 제이브이씨 켄우드 화상 부호화 장치, 화상 부호화 방법, 화상 부호화 프로그램, 화상 복호 장치, 화상 복호 방법 및 화상 복호 프로그램
CN105430390B (zh) 2011-06-30 2017-04-12 Jvc建伍株式会社 图像解码装置、图像解码方法、接收装置及接收方法
JP5786499B2 (ja) * 2011-06-30 2015-09-30 株式会社Ｊｖｃケンウッド 画像復号装置、画像復号方法及び画像復号プログラム
RU2623796C9 (ru) * 2011-12-28 2017-11-15 ДжейВиСи КЕНВУД КОРПОРЕЙШН Устройство кодирования движущегося изображения, способ кодирования движущегося изображения и программа кодирования движущегося изображения, а также устройство декодирования движущегося изображения, способ декодирования движущегося изображения и программа декодирования движущегося изображения
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Also Published As

Publication number Publication date
JP7251584B2 (ja) 2023-04-04
JP2022046467A (ja) 2022-03-23
CN112514395A (zh) 2021-03-16
KR102600108B1 (ko) 2023-11-08
JP2022003779A (ja) 2022-01-11
US11563935B2 (en) 2023-01-24
JP2024051143A (ja) 2024-04-10
JP2026063275A (ja) 2026-04-10
CN112514395B (zh) 2023-07-21
BR112021005875B1 (pt) 2023-03-14
BR112021005875A8 (pt) 2022-08-02
JP7810300B2 (ja) 2026-02-03
JP2024001288A (ja) 2024-01-09
US20210211648A1 (en) 2021-07-08
JP6933235B2 (ja) 2021-09-08
JP7722430B2 (ja) 2025-08-13
CA3119641A1 (en) 2020-06-18
JP2025083536A (ja) 2025-05-30
KR20210022756A (ko) 2021-03-03
BR112021005875A2 (pt) 2021-07-27
JP7639957B2 (ja) 2025-03-05
JP2020099037A (ja) 2020-06-25

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