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MX2025001790A - Metodo y dispositivo de codificacion/decodificacion de video para derivar el indice de ponderacion para prediccion bidireccional de candidato de fusion, y metodo para transmitir flujo de bits - Google Patents

Metodo y dispositivo de codificacion/decodificacion de video para derivar el indice de ponderacion para prediccion bidireccional de candidato de fusion, y metodo para transmitir flujo de bits

Info

Publication number
MX2025001790A
MX2025001790A MX2025001790A MX2025001790A MX2025001790A MX 2025001790 A MX2025001790 A MX 2025001790A MX 2025001790 A MX2025001790 A MX 2025001790A MX 2025001790 A MX2025001790 A MX 2025001790A MX 2025001790 A MX2025001790 A MX 2025001790A
Authority
MX
Mexico
Prior art keywords
merge candidate
affine merge
current block
deriving
decoding method
Prior art date
Application number
MX2025001790A
Other languages
English (en)
Inventor
Nae Ri Park
Jung Hak Nam
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 MX2025001790A publication Critical patent/MX2025001790A/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
    • H04N19/102—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
    • H04N19/50—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
    • H04N19/124—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
    • H04N19/102—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
    • H04N19/136—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
    • H04N19/134—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
    • H04N19/42—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
    • H04N19/513—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
    • H04N19/573—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)

Abstract

La presente invención se refiere a Un método y aparato de codificación/decodificación de imagen. Un método de decodificación de imagen de conformidad con la presente descripción puede comprender construir una lista de candidato de fusión afín para un bloque actual, basado en un modo de inter predicción del bloque actual siendo un modo de fusión afín, seleccionar un candidato de fusión afín a partir de la lista del candidato de fusión afín, derivar información de movimiento del bloque actual basada en información de movimiento del candidato de fusión afín seleccionado, generar un bloque de predicción del bloque actual basado en la información de movimiento del bloque actual, y reconstruir el bloque actual basado en el bloque de predicción del bloque actual. La construcción de la lista del candidato de fusión afín puede comprender derivar un candidato de fusión afín construido, y la derivación del candidato de fusión afín construido puede comprender derivar un índice de ponderación para bi-predicción del candidato de fusión afín construido.
MX2025001790A 2019-07-05 2022-01-03 Metodo y dispositivo de codificacion/decodificacion de video para derivar el indice de ponderacion para prediccion bidireccional de candidato de fusion, y metodo para transmitir flujo de bits MX2025001790A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962871067P 2019-07-05 2019-07-05
US201962884658P 2019-08-08 2019-08-08
PCT/KR2020/008798 WO2021006579A1 (ko) 2019-07-05 2020-07-06 머지 후보의 양방향 예측을 위한 가중치 인덱스를 유도하는 영상 부호화/복호화 방법, 장치 및 비트스트림을 전송하는 방법

Publications (1)

Publication Number Publication Date
MX2025001790A true MX2025001790A (es) 2025-03-07

Family

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Family Applications (5)

Application Number Title Priority Date Filing Date
MX2022000234A MX2022000234A (es) 2019-07-05 2020-07-06 Metodo y dispositivo de codificacion/decodificacion de video para derivar el indice de ponderacion para prediccion bidireccional de candidato de fusion, y metodo para transmitir flujo de bits.
MX2025001790A MX2025001790A (es) 2019-07-05 2022-01-03 Metodo y dispositivo de codificacion/decodificacion de video para derivar el indice de ponderacion para prediccion bidireccional de candidato de fusion, y metodo para transmitir flujo de bits
MX2025001794A MX2025001794A (es) 2019-07-05 2022-01-03 Metodo y dispositivo de codificacion/decodificacion de video para derivar el indice de ponderacion para prediccion bidireccional de candidato de fusion, y metodo para transmitir flujo de bits
MX2025001793A MX2025001793A (es) 2019-07-05 2022-01-03 Metodo y dispositivo de codificacion/decodificacion de video para derivar el indice de ponderacion para prediccion bidireccional de candidato de fusion, y metodo para transmitir flujo de bits
MX2025001791A MX2025001791A (es) 2019-07-05 2022-01-03 Metodo y dispositivo de codificacion/decodificacion de video para derivar el indice de ponderacion para prediccion bidireccional de candidato de fusion, y metodo para transmitir flujo de bits

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MX2022000234A MX2022000234A (es) 2019-07-05 2020-07-06 Metodo y dispositivo de codificacion/decodificacion de video para derivar el indice de ponderacion para prediccion bidireccional de candidato de fusion, y metodo para transmitir flujo de bits.

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MX2025001794A MX2025001794A (es) 2019-07-05 2022-01-03 Metodo y dispositivo de codificacion/decodificacion de video para derivar el indice de ponderacion para prediccion bidireccional de candidato de fusion, y metodo para transmitir flujo de bits
MX2025001793A MX2025001793A (es) 2019-07-05 2022-01-03 Metodo y dispositivo de codificacion/decodificacion de video para derivar el indice de ponderacion para prediccion bidireccional de candidato de fusion, y metodo para transmitir flujo de bits
MX2025001791A MX2025001791A (es) 2019-07-05 2022-01-03 Metodo y dispositivo de codificacion/decodificacion de video para derivar el indice de ponderacion para prediccion bidireccional de candidato de fusion, y metodo para transmitir flujo de bits

Country Status (7)

Country Link
US (2) US12184835B2 (es)
EP (1) EP3996372A4 (es)
JP (4) JP7302089B2 (es)
KR (2) KR20250103777A (es)
CN (5) CN118890469A (es)
MX (5) MX2022000234A (es)
WO (1) WO2021006579A1 (es)

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KR20250103777A (ko) * 2019-07-05 2025-07-07 엘지전자 주식회사 머지 후보의 양방향 예측을 위한 가중치 인덱스를 유도하는 영상 부호화/복호화 방법, 장치 및 비트스트림을 전송하는 방법

Also Published As

Publication number Publication date
JP2023120338A (ja) 2023-08-29
MX2025001791A (es) 2025-03-07
WO2021006579A1 (ko) 2021-01-14
JP2022539790A (ja) 2022-09-13
CN114342376A (zh) 2022-04-12
JP2025122197A (ja) 2025-08-20
KR20250103777A (ko) 2025-07-07
CN114342376B (zh) 2024-10-01
CN118900325A (zh) 2024-11-05
JP7302089B2 (ja) 2023-07-03
JP7531665B2 (ja) 2024-08-09
CN118890469A (zh) 2024-11-01
US20250175590A1 (en) 2025-05-29
US20220182606A1 (en) 2022-06-09
CN118890467A (zh) 2024-11-01
KR20220017427A (ko) 2022-02-11
MX2022000234A (es) 2022-04-07
MX2025001793A (es) 2025-03-07
JP2024147815A (ja) 2024-10-16
MX2025001794A (es) 2025-03-07
EP3996372A4 (en) 2023-06-28
CN118890468A (zh) 2024-11-01
KR102824280B1 (ko) 2025-06-23
EP3996372A1 (en) 2022-05-11
JP7691560B2 (ja) 2025-06-11
US12184835B2 (en) 2024-12-31

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