BR112021005875B1 - Dispositivo de decodificação de imagem, método de decodificação de imagem, dispositivo de codificação de imagem e método de codificação de imagem - Google Patents

Dispositivo de decodificação de imagem, método de decodificação de imagem, dispositivo de codificação de imagem e método de codificação de imagem Download PDF

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BR112021005875B1
BR112021005875B1 BR112021005875-3A BR112021005875A BR112021005875B1 BR 112021005875 B1 BR112021005875 B1 BR 112021005875B1 BR 112021005875 A BR112021005875 A BR 112021005875A BR 112021005875 B1 BR112021005875 B1 BR 112021005875B1
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Brazil
Prior art keywords
prediction
fusion candidate
image
candidate
fusion
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BR112021005875-3A
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English (en)
Portuguese (pt)
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BR112021005875A2 (pt
BR112021005875A8 (pt
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Hideki Takehara
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Jvckenwood Corporation
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Priority claimed from PCT/JP2019/048855 external-priority patent/WO2020122224A1/ja
Publication of BR112021005875A2 publication Critical patent/BR112021005875A2/pt
Publication of BR112021005875A8 publication Critical patent/BR112021005875A8/pt
Publication of BR112021005875B1 publication Critical patent/BR112021005875B1/pt

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    • 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
    • H04N19/10—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
    • H04N19/70—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
    • H04N19/102—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
    • 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
    • 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
    • H04N19/50—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

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
BR112021005875-3A 2018-12-13 2019-12-13 Dispositivo de decodificação de imagem, método de decodificação de imagem, dispositivo de codificação de imagem e método de codificação de imagem BR112021005875B1 (pt)

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

Publications (3)

Publication Number Publication Date
BR112021005875A2 BR112021005875A2 (pt) 2021-07-27
BR112021005875A8 BR112021005875A8 (pt) 2022-08-02
BR112021005875B1 true BR112021005875B1 (pt) 2023-03-14

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Country Status (6)

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US (1) US11563935B2 (https=)
JP (7) JP6933235B2 (https=)
KR (1) KR102600108B1 (https=)
CN (1) CN112514395B (https=)
BR (1) BR112021005875B1 (https=)
CA (1) CA3119641A1 (https=)

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US12120290B2 (en) * 2021-09-17 2024-10-15 Tencent America LLC Method and apparatus for intra block copy mode coding with search range switching
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
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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JP3637996B2 (ja) 1997-03-28 2005-04-13 シャープ株式会社 領域統合が可能な動き補償フレーム間予測方式を用いた動画像符号化・復号化装置
JP5807621B2 (ja) 2011-06-30 2015-11-10 株式会社Ｊｖｃケンウッド 画像符号化装置、画像符号化方法、画像符号化プログラム、送信装置、送信方法および送信プログラム
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BR112014013969B1 (pt) * 2011-12-28 2022-05-10 JVC Kenwood Corporation Dispositivo de codificação de vídeo, método de codificação de vídeo, programa de codificação de vídeo, dispositivo de decodificação de vídeo, método de decodificação de vídeo, programa de decodificação de vídeo
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
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JP2024051143A (ja) 2024-04-10
CA3119641A1 (en) 2020-06-18
BR112021005875A2 (pt) 2021-07-27
CN112514395A (zh) 2021-03-16
JP7810300B2 (ja) 2026-02-03
US11563935B2 (en) 2023-01-24
KR102600108B1 (ko) 2023-11-08
BR112021005875A8 (pt) 2022-08-02
KR20210022756A (ko) 2021-03-03
JP2020099037A (ja) 2020-06-25
JP7639957B2 (ja) 2025-03-05
JP7251584B2 (ja) 2023-04-04
JP7722430B2 (ja) 2025-08-13
CN112514395B (zh) 2023-07-21
JP2024001288A (ja) 2024-01-09
JP2022003779A (ja) 2022-01-11
US20210211648A1 (en) 2021-07-08
JP2025083536A (ja) 2025-05-30
JP6933235B2 (ja) 2021-09-08
JP2022046467A (ja) 2022-03-23
JP2026063275A (ja) 2026-04-10

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Ipc: H04N 19/52 (2006.01), H04N 19/577 (2006.01), H04N

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
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