MX2021013977A - Manejo de herramienta de codificacion de flujo optico bidireccional (bio) para remuestreo de imagenes de referencia en codificacion de video. - Google Patents

Manejo de herramienta de codificacion de flujo optico bidireccional (bio) para remuestreo de imagenes de referencia en codificacion de video.

Info

Publication number
MX2021013977A
MX2021013977A MX2021013977A MX2021013977A MX2021013977A MX 2021013977 A MX2021013977 A MX 2021013977A MX 2021013977 A MX2021013977 A MX 2021013977A MX 2021013977 A MX2021013977 A MX 2021013977A MX 2021013977 A MX2021013977 A MX 2021013977A
Authority
MX
Mexico
Prior art keywords
resolution
video decoder
optical flow
bio
handling
Prior art date
Application number
MX2021013977A
Other languages
English (en)
Inventor
Fnu Hendry
Jianle Chen
Ye-Kui Wang
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 MX2021013977A publication Critical patent/MX2021013977A/es

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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
    • H04N19/102—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
    • H04N19/50—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
    • H04N19/10—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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • 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
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • 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
    • 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • 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
    • H04N19/513—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)
  • Optical Communication System (AREA)

Abstract

Un método de decodificación implementado por un decodificador de video incluyendo la determinación, a través del decodificador de video, respecto a si una resolución de una imagen actual que está siendo decodificada es la misma que la resolución de imágenes de referencia identificada por una lista de imágenes de referencia asociada con la imagen actual; activar, a través del decodificador de video, flujo óptico bidireccional (BDOF) para un bloque actual de la imagen actual cuando la resolución de la imagen actual es determinada como igual que la resolución de cada una de las imágenes de referencia; desactivar, a través del decodificador de video, el BDOF para el bloque actual de la imagen actual cuando la resolución de la imagen actual es determinado como diferente de la resolución de cualquiera de las imágenes de referencia; y refinar, a través del decodificador de video, vectores de movimiento correspondientes al bloque actual utilizando el BDOF cuando el BDOF está activado para el bloque actual.
MX2021013977A 2019-05-15 2020-05-14 Manejo de herramienta de codificacion de flujo optico bidireccional (bio) para remuestreo de imagenes de referencia en codificacion de video. MX2021013977A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962848409P 2019-05-15 2019-05-15
PCT/US2020/032922 WO2020232264A1 (en) 2019-05-15 2020-05-14 Handling of bi-directional optical flow (bio) coding tool for reference picture resampling in video coding

Publications (1)

Publication Number Publication Date
MX2021013977A true MX2021013977A (es) 2022-04-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
MX2021013977A MX2021013977A (es) 2019-05-15 2020-05-14 Manejo de herramienta de codificacion de flujo optico bidireccional (bio) para remuestreo de imagenes de referencia en codificacion de video.

Country Status (11)

Country Link
US (1) US20220014735A1 (es)
EP (2) EP4221225B1 (es)
JP (2) JP7384929B2 (es)
KR (2) KR102628896B1 (es)
CN (2) CN118101931A (es)
ES (1) ES2947509T3 (es)
HU (1) HUE061979T2 (es)
MX (1) MX2021013977A (es)
PL (1) PL3970363T3 (es)
PT (1) PT3970363T (es)
WO (1) WO2020232264A1 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3954119A4 (en) 2019-05-21 2022-06-22 Beijing Bytedance Network Technology Co., Ltd. SYNTAX SIGNALING IN A SUBBLOCK MERGE MODE
KR20240036121A (ko) * 2019-06-24 2024-03-19 엘지전자 주식회사 영상 디코딩 방법 및 그 장치
KR102679376B1 (ko) * 2019-08-22 2024-06-27 엘지전자 주식회사 가중 예측을 수행하는 영상 부호화/복호화 방법, 장치 및 비트스트림을 전송하는 방법
CN114631317B (zh) 2019-10-18 2024-03-15 北京字节跳动网络技术有限公司 子图片的参数集信令中的语法约束
EP4351133A1 (en) * 2022-10-07 2024-04-10 Beijing Xiaomi Mobile Software Co., Ltd. Encoding/decoding video picture data

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4390112B2 (ja) * 2002-09-05 2009-12-24 エージェンシー フォー サイエンス，テクノロジー アンド リサーチ ビデオシーケンスのレートを制御する方法及び装置並びにビデオ符号化装置
WO2008140656A2 (en) * 2007-04-03 2008-11-20 Gary Demos Flowfield motion compensation for video compression
US20170171563A1 (en) * 2014-02-24 2017-06-15 Sharp Kabushiki Kaisha Restrictions on signaling
US10375413B2 (en) * 2015-09-28 2019-08-06 Qualcomm Incorporated Bi-directional optical flow for video coding
KR20240024335A (ko) * 2018-11-22 2024-02-23 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 서브 블록 기반 인터 예측을 위한 조정 방법
US11206425B2 (en) * 2019-03-11 2021-12-21 Alibaba Group Holding Limited Inter prediction methods for coding video data
US11039150B2 (en) * 2019-04-19 2021-06-15 Tencent America LLC Method and apparatus for video coding
CN117692630A (zh) * 2019-05-11 2024-03-12 北京字节跳动网络技术有限公司 视频处理中编解码工具的选择性使用
CA3146230A1 (en) * 2019-07-08 2020-10-22 Huawei Technologies Co., Ltd. Handling of multiple picture size and conformance windows for reference picture resampling in video coding
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

Also Published As

Publication number Publication date
EP4221225A1 (en) 2023-08-02
JP7384929B2 (ja) 2023-11-21
EP3970363B1 (en) 2023-05-17
CN118101931A (zh) 2024-05-28
WO2020232264A1 (en) 2020-11-19
PT3970363T (pt) 2023-06-15
HUE061979T2 (hu) 2023-09-28
PL3970363T3 (pl) 2023-07-17
EP3970363A1 (en) 2022-03-23
ES2947509T3 (es) 2023-08-10
KR20220008342A (ko) 2022-01-20
EP3970363A4 (en) 2022-07-27
EP4221225B1 (en) 2024-05-29
CN113826381A (zh) 2021-12-21
KR20240013895A (ko) 2024-01-30
JP2024012555A (ja) 2024-01-30
US20220014735A1 (en) 2022-01-13
KR102628896B1 (ko) 2024-01-23
JP2022532400A (ja) 2022-07-14

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