CL2021001047A1 - Métodos y decodificador de video - Google Patents

Métodos y decodificador de video

Info

Publication number
CL2021001047A1
CL2021001047A1 CL2021001047A CL2021001047A CL2021001047A1 CL 2021001047 A1 CL2021001047 A1 CL 2021001047A1 CL 2021001047 A CL2021001047 A CL 2021001047A CL 2021001047 A CL2021001047 A CL 2021001047A CL 2021001047 A1 CL2021001047 A1 CL 2021001047A1
Authority
CL
Chile
Prior art keywords
hmvp
list
current block
candidate
motion information
Prior art date
Application number
CL2021001047A
Other languages
English (en)
Inventor
Jianle Chen
Sergey Yurievich Ikonin
Roman Igorevich Chernyak
Timofey Mikhailovich Solovyev
Alexander Alexandrovich Karabutov
Elena Alexandrovna Alshina
Original Assignee
Huawei Tech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of CL2021001047A1 publication Critical patent/CL2021001047A1/es

Links

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
    • H04N19/50—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
    • H04N19/573—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
    • H04N19/10—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
    • H04N19/157—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
    • H04N19/169—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
    • H04N19/50—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
    • 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
    • H04N19/70—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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
    • 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/96—Tree coding, e.g. quad-tree coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

La presente descripción se refiere a codificación y decodificación de video y, en particular, a determinar información de movimiento para un bloque actual usando una lista de predictores de vector de movimiento basados en historial, HMVP. Se construye la lista HMVP, con la lista que es una lista ordenada de N candidatos HMVP Hk, k=0, ⋯ , N-1, que se asocian con información de movimiento de N bloques anteriores del cuadro y preceden al bloque actual. Cada HMVP candidata tiene información de movimiento que incluye elementos de uno o más vectores de movimiento, MV, uno o más índices de imagen de referencia correspondientes a los MV y uno o más índices de factores de ponderación de bipredicción. Una o más HMVP candidatas de la lista HMVP se añaden a una lista de candidatos de información de movimiento para el bloque actual; y la información de movimiento se deriva con base en la lista de candidatos de información de movimiento. La HMVP se actualiza adicionalmente comparando al menos uno de los elementos de cada candidato basado en historial de la lista HMVP con el elemento correspondiente del bloque actual. Cuando al menos uno de los elementos HMVP difiere del elemento correspondiente del bloque actual, la información de movimiento del bloque actual se añade a la lista HMVP.
CL2021001047A 2018-10-24 2021-04-23 Métodos y decodificador de video CL2021001047A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201862750250P 2018-10-24 2018-10-24
US201962909761P 2019-10-02 2019-10-02

Publications (1)

Publication Number Publication Date
CL2021001047A1 true CL2021001047A1 (es) 2021-09-24

Family

ID=70330527

Family Applications (1)

Application Number Title Priority Date Filing Date
CL2021001047A CL2021001047A1 (es) 2018-10-24 2021-04-23 Métodos y decodificador de video

Country Status (15)

Country Link
US (3) US11765383B2 (es)
EP (2) EP3861743B1 (es)
JP (2) JP7395580B2 (es)
KR (2) KR102860727B1 (es)
CN (6) CN117459721A (es)
AU (1) AU2019364883B2 (es)
BR (1) BR112021007592A2 (es)
CL (1) CL2021001047A1 (es)
ES (1) ES2974160T3 (es)
HU (1) HUE065630T2 (es)
MX (3) MX2021004733A (es)
NZ (1) NZ775539A (es)
PL (1) PL3861743T3 (es)
PT (1) PT3861743T (es)
WO (1) WO2020085954A1 (es)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11394989B2 (en) * 2018-12-10 2022-07-19 Tencent America LLC Method and apparatus for video coding
US11876957B2 (en) * 2018-12-18 2024-01-16 Lg Electronics Inc. Method and apparatus for processing video data
KR20210118068A (ko) * 2018-12-29 2021-09-29 브이아이디 스케일, 인크. 히스토리 기반 모션 벡터 예측
CN112042191B (zh) * 2019-01-01 2024-03-19 Lg电子株式会社 以基于历史的运动矢量为基础预测处理视频信号的方法和设备
CN113366845B (zh) * 2019-01-31 2024-08-16 寰发股份有限公司 视频编码中结合帧间和帧内预测的方法和装置
AU2020250609B2 (en) 2019-04-01 2023-09-07 Beijing Bytedance Network Technology Co., Ltd. Using interpolation filters for history based motion vector prediction
ES3014838T3 (en) * 2019-04-19 2025-04-25 Huawei Tech Co Ltd Method for deriving interpolation filter index for a current block; devices for video compression
KR102934010B1 (ko) * 2019-06-14 2026-03-03 엘지전자 주식회사 쌍 예측(bi-prediction)이 적용되는 경우 가중 평균을 위한 가중치 인덱스 정보를 도출하는 영상 디코딩 방법 및 그 장치
AU2020290835B2 (en) * 2019-06-14 2023-12-07 Lg Electronics Inc. Image decoding method for deriving weight index information for bi-prediction, and device for same
JP7359942B2 (ja) 2019-08-20 2023-10-11 北京字節跳動網絡技術有限公司 映像処理における代替の補間フィルタの選択的使用
EP4035381A1 (en) * 2019-09-26 2022-08-03 InterDigital VC Holdings France, SAS Extended motion information comparison
JP7629029B2 (ja) 2020-05-01 2025-02-12 北京字節跳動網絡技術有限公司 動き精度構文のためのエントロピーコーディング
CN113282552B (zh) * 2021-06-04 2022-11-22 上海天旦网络科技发展有限公司 流量统计日志的相似性向量化方法及系统
EP4699318A2 (en) * 2023-04-20 2026-02-25 Tencent America LLC Improvement of motion vector redundancy and similarity check for merge mode
WO2025218740A1 (en) * 2024-04-17 2025-10-23 Mediatek Inc. Methods and apparatus for video coding

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8731054B2 (en) * 2004-05-04 2014-05-20 Qualcomm Incorporated Method and apparatus for weighted prediction in predictive frames
GB2469679B (en) * 2009-04-23 2012-05-02 Imagination Tech Ltd Object tracking using momentum and acceleration vectors in a motion estimation system
CN101610413B (zh) * 2009-07-29 2011-04-27 清华大学 一种视频的编码/解码方法及装置
KR101630688B1 (ko) * 2010-02-17 2016-06-16 삼성전자주식회사 움직임 예측 장치 및 방법과 영상 처리 장치
US9083983B2 (en) * 2011-10-04 2015-07-14 Qualcomm Incorporated Motion vector predictor candidate clipping removal for video coding
US9503720B2 (en) * 2012-03-16 2016-11-22 Qualcomm Incorporated Motion vector coding and bi-prediction in HEVC and its extensions
US9479778B2 (en) * 2012-08-13 2016-10-25 Qualcomm Incorporated Device and method for coding video information using base layer motion vector candidate
CN102946536B (zh) * 2012-10-09 2015-09-30 华为技术有限公司 候选矢量列表构建的方法及装置
CN103338372A (zh) * 2013-06-15 2013-10-02 浙江大学 一种视频处理方法及装置
EP3198867A4 (en) * 2014-10-31 2018-04-04 MediaTek Inc. Method of improved directional intra prediction for video coding
WO2019223746A1 (en) * 2018-05-23 2019-11-28 Mediatek Inc. Method and apparatus of video coding using bi-directional cu weight
KR20250142932A (ko) 2018-08-10 2025-09-30 후아웨이 테크놀러지 컴퍼니 리미티드 비디오 처리 방법, 비디오 처리 장치, 인코더, 디코더, 매체 및 컴퓨터 프로그램
CN116800982A (zh) 2018-08-13 2023-09-22 Lg电子株式会社 图像编码/解码设备和图像数据发送设备
CN112840654B (zh) 2018-10-12 2024-04-16 韦勒斯标准与技术协会公司 使用多假设预测的视频信号处理方法和装置

Also Published As

Publication number Publication date
CN118055224A (zh) 2024-05-17
PT3861743T (pt) 2024-02-29
US20210243470A1 (en) 2021-08-05
JP7395580B2 (ja) 2023-12-11
EP3861743B1 (en) 2023-12-27
EP3861743A1 (en) 2021-08-11
US12160603B2 (en) 2024-12-03
JP7622163B2 (ja) 2025-01-27
BR112021007592A2 (pt) 2021-07-27
CN117459721A (zh) 2024-01-26
CN112771870B (zh) 2023-11-10
MX2021004733A (es) 2021-06-04
KR102860727B1 (ko) 2025-09-15
MX2024011584A (es) 2024-09-26
KR20210072098A (ko) 2021-06-16
JP2023164872A (ja) 2023-11-14
AU2019364883A1 (en) 2021-05-27
CN117459720A (zh) 2024-01-26
WO2020085954A1 (en) 2020-04-30
EP4333434A1 (en) 2024-03-06
MX2024011585A (es) 2024-09-26
PL3861743T3 (pl) 2024-05-13
AU2019364883B2 (en) 2023-07-20
CN117478875A (zh) 2024-01-30
CN112771870A (zh) 2021-05-07
CN113315974B (zh) 2022-06-10
HUE065630T2 (hu) 2024-06-28
KR20250141266A (ko) 2025-09-26
EP3861743A4 (en) 2021-12-01
CN113315974A (zh) 2021-08-27
NZ775539A (en) 2023-06-30
US20260122271A1 (en) 2026-04-30
CA3117482A1 (en) 2020-04-30
US20240040146A1 (en) 2024-02-01
US11765383B2 (en) 2023-09-19
ES2974160T3 (es) 2024-06-26
JP2022505771A (ja) 2022-01-14

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