MX2022002207A - Metodo y dispositivo de codificacion/decodificacion de imagen para realizar prediccion ponderada y metodo para transmitir flujo de bits. - Google Patents

Metodo y dispositivo de codificacion/decodificacion de imagen para realizar prediccion ponderada y metodo para transmitir flujo de bits.

Info

Publication number
MX2022002207A
MX2022002207A MX2022002207A MX2022002207A MX2022002207A MX 2022002207 A MX2022002207 A MX 2022002207A MX 2022002207 A MX2022002207 A MX 2022002207A MX 2022002207 A MX2022002207 A MX 2022002207A MX 2022002207 A MX2022002207 A MX 2022002207A
Authority
MX
Mexico
Prior art keywords
decoding method
weighted prediction
prediction
current block
image encoding
Prior art date
Application number
MX2022002207A
Other languages
English (en)
Inventor
Jung Hak Nam
Nae Ri Park
Hyeong Moon Jang
Original Assignee
Lg Electronics Inc
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 Lg Electronics Inc filed Critical Lg Electronics Inc
Publication of MX2022002207A publication Critical patent/MX2022002207A/es

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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
    • H04N19/169—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
    • H04N19/184—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 bits, e.g. of the compressed video stream
    • 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
    • H04N19/577—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
    • H04N19/102—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
    • H04N19/107—Selection of coding mode or of prediction mode between spatial and temporal predictive coding, e.g. picture refresh
    • 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
    • H04N19/109—Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes
    • 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
    • H04N19/124—Quantisation
    • 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
    • H04N19/174—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 slice, e.g. a line of blocks or a group of 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
    • H04N19/169—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
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • 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
    • H04N19/90—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

Landscapes

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

Abstract

La presente invención se refiere a un método y aparato de codificación/decodificación. Un método de decodificación de imagen de conformidad con la presente descripción es realizado por un aparato de ecodificación de imagen. El método de decodificación de imagen comprende derivar una primera bandera que especifica sí se realiza predicción ponderada en un bloque actual y un índice de peso BcwIdx de bi-predicción con peso al nivel de CU (BCW) para el bloque actual, determinar sí se realiza predicción ponderada por omisión o predicción ponderada explícita sobre el bloque actual basado en la primer bandera y el BcwIdx, y generar un bloque de predicción para el bloque actual realizando el método determinado.
MX2022002207A 2019-08-22 2020-08-20 Metodo y dispositivo de codificacion/decodificacion de imagen para realizar prediccion ponderada y metodo para transmitir flujo de bits. MX2022002207A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962890573P 2019-08-22 2019-08-22
PCT/KR2020/011103 WO2021034123A1 (ko) 2019-08-22 2020-08-20 가중 예측을 수행하는 영상 부호화/복호화 방법, 장치 및 비트스트림을 전송하는 방법

Publications (1)

Publication Number Publication Date
MX2022002207A true MX2022002207A (es) 2022-04-07

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Country Status (8)

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US (2) US11792419B2 (es)
EP (1) EP4020992A4 (es)
JP (2) JP2022544844A (es)
KR (3) KR20240104203A (es)
CN (1) CN114503563A (es)
AU (2) AU2020332224C1 (es)
MX (1) MX2022002207A (es)
WO (1) WO2021034123A1 (es)

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EP4054191A1 (en) * 2018-09-14 2022-09-07 Panasonic Intellectual Property Corporation of America Encoding device, decoding device, encoding method, and decoding method
US11838540B2 (en) * 2018-12-21 2023-12-05 Electronics And Telecommunications Research Institute Image encoding/decoding method and device, and recording medium in which bitstream is stored
JP2022544844A (ja) 2019-08-22 2022-10-21 エルジー エレクトロニクス インコーポレイティド 加重予測を行う画像符号化／復号化方法、装置、及びビットストリームを伝送する方法
MX2022002254A (es) * 2019-08-23 2022-03-22 Beijing Dajia Internet Information Tech Co Ltd Metodo y aparato en refinamiento de prediccion con flujo optico.
EP4032298A4 (en) * 2019-09-17 2023-08-16 Beijing Dajia Internet Information Technology Co., Ltd. METHODS AND APPARATUS FOR PREDICTION REFINEMENT WITH OPTICAL FLOW
WO2021167758A1 (en) 2020-02-19 2021-08-26 Bytedance Inc. Signaling of prediction weights in general constraint information of a bitstream
US20230171405A1 (en) * 2021-11-30 2023-06-01 Tencent America LLC Scene transition detection based encoding methods for bcw

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US9503720B2 (en) * 2012-03-16 2016-11-22 Qualcomm Incorporated Motion vector coding and bi-prediction in HEVC and its extensions
US11363253B2 (en) * 2016-05-13 2022-06-14 Vid Scale, Inc. Systems and methods for generalized multi-hypothesis prediction for video coding
US20180332298A1 (en) * 2017-05-10 2018-11-15 Futurewei Technologies, Inc. Bidirectional Prediction In Video Compression
US10904565B2 (en) 2017-06-23 2021-01-26 Qualcomm Incorporated Memory-bandwidth-efficient design for bi-directional optical flow (BIO)
CN112740704B (zh) * 2018-09-21 2024-04-16 夏普株式会社 图像解码装置以及图像编码装置
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JP2022544844A (ja) 2019-08-22 2022-10-21 エルジー エレクトロニクス インコーポレイティド 加重予測を行う画像符号化／復号化方法、装置、及びビットストリームを伝送する方法

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AU2020332224C1 (en) 2024-05-30
US11792419B2 (en) 2023-10-17
KR20240104203A (ko) 2024-07-04
KR20230173226A (ko) 2023-12-26
JP2022544844A (ja) 2022-10-21
WO2021034123A1 (ko) 2021-02-25
AU2020332224A1 (en) 2022-03-24
US20230412830A1 (en) 2023-12-21
KR102614946B1 (ko) 2023-12-15
EP4020992A1 (en) 2022-06-29
AU2020332224B2 (en) 2023-12-14
US20220239937A1 (en) 2022-07-28
KR20220036962A (ko) 2022-03-23
KR102679376B1 (ko) 2024-06-27
CN114503563A (zh) 2022-05-13
EP4020992A4 (en) 2023-06-21
AU2024200767A1 (en) 2024-02-29
JP2024040349A (ja) 2024-03-25

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