CL2021003427A1 - Un codificador, un decodificador y métodos correspondientes - Google Patents

Un codificador, un decodificador y métodos correspondientes

Info

Publication number
CL2021003427A1
CL2021003427A1 CL2021003427A CL2021003427A CL2021003427A1 CL 2021003427 A1 CL2021003427 A1 CL 2021003427A1 CL 2021003427 A CL2021003427 A CL 2021003427A CL 2021003427 A CL2021003427 A CL 2021003427A CL 2021003427 A1 CL2021003427 A1 CL 2021003427A1
Authority
CL
Chile
Prior art keywords
dmvr
flag
interbiprediction
decoder
images
Prior art date
Application number
CL2021003427A
Other languages
English (en)
Inventor
Semih Esenlik
Sriram Sethuraman
Sagar Kotecha
Jeeva Raj A
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 CL2021003427A1 publication Critical patent/CL2021003427A1/es

Links

Classifications

    • 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
    • H04N19/102Methods 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
    • H04N19/102Methods 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
    • H04N19/109Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes
    • 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
    • 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
    • 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
    • H04N19/172Methods 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 picture, frame or field
    • 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
    • H04N19/174Methods 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 slice, e.g. a line of blocks or a group of blocks
    • 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
    • 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
    • H04N19/50Methods 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
    • H04N19/523Motion estimation or motion compensation with sub-pixel accuracy
    • 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)

Abstract

Se proporciona un método para decodificar un flujo de bits de video implementado por un dispositivo de decodificación, el flujo de bits de video incluye datos codificados para una pluralidad de imágenes, en donde se indica mediante una bandera si el procesamiento de refinamiento del vector de movimiento del decodificador o el procesamiento de flujo óptico bidireccional está habilitado o no. El método de decodificación comprende: analizar una bandera de habilitación para el refinamiento del vector de movimiento del decodificador, DMVR, a partir de un conjunto de parámetros de secuencia del flujo de bits de video, en donde la bandera de habilitación para DMVR especifica si la interbipredicción basada en DMVR está habilitada o no para la pluralidad de imágenes asociadas con el conjunto de parámetros de secuencia; analizar una bandera de inhabilitación para DMVR a partir de una estructura de sintaxis de un nivel de estructura de sintaxis jerárquica menor que el nivel de conjunto de parámetros de secuencia, SPS, del flujo de bits de video, en donde la bandera de inhabilitación para DMVR especifica si la interbipredicción basada en DMVR está inhabilitada o no para al menos una región de una imagen actual asociada con la estructura de sintaxis, en donde la imagen actual pertenece a la pluralidad de imágenes; y realizar interbipredicción basada en DMVR para un bloque actual dentro de al menos una región de la imagen actual para obtener valores de muestra predichos del bloque actual cuando se cumple al menos una condición predefinida, y en donde la al menos una condición predefinida
CL2021003427A 2019-06-21 2021-12-20 Un codificador, un decodificador y métodos correspondientes CL2021003427A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IN201931024825 2019-06-21

Publications (1)

Publication Number Publication Date
CL2021003427A1 true CL2021003427A1 (es) 2022-08-05

Family

ID=74040654

Family Applications (1)

Application Number Title Priority Date Filing Date
CL2021003427A CL2021003427A1 (es) 2019-06-21 2021-12-20 Un codificador, un decodificador y métodos correspondientes

Country Status (14)

Country Link
US (1) US20220116648A1 (es)
EP (1) EP3987794A4 (es)
JP (1) JP7471328B2 (es)
KR (1) KR20220024817A (es)
CN (5) CN117440169A (es)
AU (1) AU2020294736A1 (es)
BR (1) BR112021025924A2 (es)
CA (1) CA3144099A1 (es)
CL (1) CL2021003427A1 (es)
IL (1) IL289227A (es)
MX (1) MX2021016105A (es)
NZ (1) NZ783895A (es)
WO (1) WO2020253858A1 (es)
ZA (1) ZA202110875B (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115941970B (zh) * 2019-06-17 2024-02-20 北京达佳互联信息技术有限公司 用于视频编解码中的解码器侧运动矢量细化的方法和装置
CN114073090A (zh) * 2019-07-01 2022-02-18 交互数字Vc控股法国公司 仿射运动补偿的双向光流细化
US11438623B2 (en) * 2019-07-08 2022-09-06 Hyundai Motor Company Method and device for encoding and decoding video using inter-prediction
WO2021050234A1 (en) * 2019-09-12 2021-03-18 Alibaba Group Holding Limited Method and apparatus for signaling video coding information
US11641475B2 (en) * 2019-09-12 2023-05-02 Alibaba Group Holding Limited Method and apparatus for encoding or decoding video
KR20220061108A (ko) 2019-09-19 2022-05-12 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 비디오 코딩에서 레퍼런스 샘플 위치 유도
EP4026336A4 (en) 2019-10-05 2022-12-07 Beijing Bytedance Network Technology Co., Ltd. LEVEL-BASED SIGNALING OF VIDEO CODING TOOLS
WO2021068955A1 (en) 2019-10-12 2021-04-15 Beijing Bytedance Network Technology Co., Ltd. Use and signaling of refining video coding tools
CN117376557A (zh) 2019-10-13 2024-01-09 北京字节跳动网络技术有限公司 参考图片重采样与视频编解码工具之间的相互作用
CN112135126B (zh) * 2019-11-05 2021-09-21 杭州海康威视数字技术股份有限公司 一种编解码方法、装置、设备及机器可读存储介质
WO2021129866A1 (en) 2019-12-27 2021-07-01 Beijing Bytedance Network Technology Co., Ltd. Signaling of slice types in video pictures headers
AU2022300883A1 (en) * 2021-06-28 2024-02-01 Beijing Dajia Internet Information Technology Co., Ltd. Residual and coefficients coding for video coding
US11968356B2 (en) * 2022-03-16 2024-04-23 Qualcomm Incorporated Decoder-side motion vector refinement (DMVR) inter prediction using shared interpolation filters and reference pixels

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4877449B2 (ja) * 2004-11-04 2012-02-15 カシオ計算機株式会社 動画像符号化装置および動画像符号化処理プログラム
GB2512829B (en) * 2013-04-05 2015-05-27 Canon Kk Method and apparatus for encoding or decoding an image with inter layer motion information prediction according to motion information compression scheme
US20150103925A1 (en) * 2013-10-15 2015-04-16 Qualcomm Incorporated Parallel extensions of parameter sets
WO2017052009A1 (ko) * 2015-09-24 2017-03-30 엘지전자 주식회사 영상 코딩 시스템에서 amvr 기반한 영상 코딩 방법 및 장치
US10750203B2 (en) * 2016-12-22 2020-08-18 Mediatek Inc. Method and apparatus of adaptive bi-prediction for video coding
US10630978B2 (en) * 2017-05-12 2020-04-21 Blackberry Limited Methods and devices for intra-coding in video compression
CN110832858B (zh) * 2017-07-03 2023-10-13 Vid拓展公司 用于视频编解码的设备、方法
JP7382332B2 (ja) * 2017-11-01 2023-11-16 ヴィド スケール インコーポレイテッド マージモード用のサブブロック動き導出およびデコーダサイド動きベクトル精緻化
US11750832B2 (en) * 2017-11-02 2023-09-05 Hfi Innovation Inc. Method and apparatus for video coding
US11184630B2 (en) * 2018-09-28 2021-11-23 Tencent America LLC Method and apparatus for video coding
CN112868238B (zh) * 2018-10-23 2023-04-21 北京字节跳动网络技术有限公司 局部照明补偿和帧间预测编解码之间的并置
WO2020103877A1 (en) * 2018-11-20 2020-05-28 Beijing Bytedance Network Technology Co., Ltd. Coding and decoding of video coding modes
US10491240B1 (en) * 2019-01-17 2019-11-26 Cyborg Inc. Systems and methods for variable length codeword based, hybrid data encoding and decoding using dynamic memory allocation
CN113519161A (zh) * 2019-03-05 2021-10-19 Lg 电子株式会社 处理视频信号用于帧间预测的方法和设备
CN111989925B (zh) * 2019-03-22 2024-04-26 罗斯德尔动力有限责任公司 基于dmvr和bdof的帧间预测方法及其设备
KR20230169434A (ko) * 2019-04-02 2023-12-15 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 디코더 측 움직임 벡터 유도
WO2020211867A1 (en) * 2019-04-19 2020-10-22 Beijing Bytedance Network Technology Co., Ltd. Delta motion vector in prediction refinement with optical flow process

Also Published As

Publication number Publication date
CA3144099A1 (en) 2020-12-24
BR112021025924A2 (pt) 2022-02-22
JP7471328B2 (ja) 2024-04-19
IL289227A (en) 2022-02-01
MX2021016105A (es) 2022-04-06
CN117440169A (zh) 2024-01-23
CN114009040A (zh) 2022-02-01
NZ783895A (en) 2024-02-23
ZA202110875B (en) 2022-09-28
EP3987794A1 (en) 2022-04-27
CN117440170A (zh) 2024-01-23
CN116996693A (zh) 2023-11-03
WO2020253858A8 (en) 2021-02-25
CN114009040B (zh) 2023-08-04
CN117812270A (zh) 2024-04-02
EP3987794A4 (en) 2022-09-07
AU2020294736A1 (en) 2022-01-27
WO2020253858A1 (en) 2020-12-24
US20220116648A1 (en) 2022-04-14
JP2022537064A (ja) 2022-08-23
KR20220024817A (ko) 2022-03-03

Similar Documents

Publication Publication Date Title
CL2021003427A1 (es) Un codificador, un decodificador y métodos correspondientes
MY189418A (en) Method for entropy-encoding slice segment and apparatus therefor, and method for entropy-decoding slice segment and apparatus therefor
MX2021003167A (es) Un codificador de video, un decodificador de video y metodos correspondientes.
RU2015117436A (ru) Синтаксическая структура параметров гипотетического эталонного декодера
MX2013014857A (es) Señalizacion de imagenes de referencia.
EP3962085A3 (en) Image encoding and decoding method, encoding and decoding device, encoder and decoder
BR112015004116A2 (pt) método, aparelho e sistema para codificar e decodificar as unidades de transformação de uma unidade de codificação
MY160181A (en) Method and apparatus for coding video and method and apparatus for decoding video accompanied with arithmetic coding
WO2019209444A3 (en) Method and apparatus for video coding
MX2023012298A (es) Metodo y aparato de decodificacion de video y metodo y aparato de codificacion de video.
BR112015016678A2 (pt) síntese de visualização em vídeo 3d
MX2022008177A (es) Un codificador, un decodificador y métodos y aparatos correspondientes.
RU2013157568A (ru) Способ кодирования движущихся графических изображений, устройство кодирования движущихся графических изображений, способ декодирования движущихся графических изображений и устройство декодирования движущихся графических изображений
CL2022000711A1 (es) Información de unidad de temporización y decodificación de imagen para escalabilidad temporal
BR112018006041A2 (pt) codificador de vídeo, decodificador de vídeo e métodos para codificação e decodificação preditiva
CL2022002338A1 (es) Un codificador, un decodificador y métodos correspondientes para señalización y semántica en conjuntos de parámetros
BR112022005444A2 (pt) Desabilitação de camadas desnecessárias em sequências de bits de vídeo de múltiplas camadas
EP4283999A3 (en) Video decoding method, and video decoder
RU2016141278A (ru) Устройство обработки изображения и способ
CO2021010122A2 (es) Refinamiento de movimiento lateral en sistemas de codificación/decodificación de vídeo
BR112022006694A2 (pt) Codificador, decodificador e métodos correspondentes para simplificar sinalização de cabeçalho de imagem
BR122022002075A8 (pt) Método de decodificação/codificação de imagem realizado por um aparelho de decodificação/codificação, aparelho de decodificação/codificação para decodificação/codificação de imagem, método de transmissão de dados para imagem e mídia de armazenamento legível por computador não transitória
BR112021024283A2 (pt) Codificador, decodificador e métodos correspondentes
ZA202205804B (en) Image/video coding method and device
BR112022012155A2 (pt) Método e aparelho de codificação de imagem/vídeo baseados em tabela ponderada de predição