MX2021004733A - Un metodo y un aparato para determinar informacion de movimiento para un bloque actual, un metodo y un aparato para construir y actualizar una lista de predictores de vectores de movimiento basada en historial, y un medio de almacenamiento legible por computadora no transitorio, y metodos y aparatos de codificacion/decodificacion de video. - Google Patents

Un metodo y un aparato para determinar informacion de movimiento para un bloque actual, un metodo y un aparato para construir y actualizar una lista de predictores de vectores de movimiento basada en historial, y un medio de almacenamiento legible por computadora no transitorio, y metodos y aparatos de codificacion/decodificacion de video.

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Publication number
MX2021004733A
MX2021004733A MX2021004733A MX2021004733A MX2021004733A MX 2021004733 A MX2021004733 A MX 2021004733A MX 2021004733 A MX2021004733 A MX 2021004733A MX 2021004733 A MX2021004733 A MX 2021004733A MX 2021004733 A MX2021004733 A MX 2021004733A
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MX
Mexico
Prior art keywords
hmvp
list
motion information
current block
candidate
Prior art date
Application number
MX2021004733A
Other languages
English (en)
Inventor
Jianle Chen
Sergey Yurievich Ikonin
Roman Igorevich Chernyak
Timofey Mikhailovich Solovyev
Elena Alexandrovna Alshina
Alexander Alexandrovich Karabutov
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.)
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Publication date
Application filed by Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of MX2021004733A publication Critical patent/MX2021004733A/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
    • H04N19/50—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
    • H04N19/10—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
    • H04N19/573—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
    • H04N19/50—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

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  • 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.
MX2021004733A 2018-10-24 2019-10-24 Un metodo y un aparato para determinar informacion de movimiento para un bloque actual, un metodo y un aparato para construir y actualizar una lista de predictores de vectores de movimiento basada en historial, y un medio de almacenamiento legible por computadora no transitorio, y metodos y aparatos de codificacion/decodificacion de video. MX2021004733A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201862750250P 2018-10-24 2018-10-24
US201962909761P 2019-10-02 2019-10-02
PCT/RU2019/050196 WO2020085954A1 (en) 2018-10-24 2019-10-24 Video decoder and methods

Publications (1)

Publication Number Publication Date
MX2021004733A true MX2021004733A (es) 2021-06-04

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MX2021004733A MX2021004733A (es) 2018-10-24 2019-10-24 Un metodo y un aparato para determinar informacion de movimiento para un bloque actual, un metodo y un aparato para construir y actualizar una lista de predictores de vectores de movimiento basada en historial, y un medio de almacenamiento legible por computadora no transitorio, y metodos y aparatos de codificacion/decodificacion de video.

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US (2) US11765383B2 (es)
EP (2) EP3861743B1 (es)
JP (2) JP7395580B2 (es)
KR (1) KR20210072098A (es)
CN (6) CN117459721A (es)
AU (1) AU2019364883B2 (es)
BR (1) BR112021007592A2 (es)
CA (1) CA3117482A1 (es)
CL (1) CL2021001047A1 (es)
ES (1) ES2974160T3 (es)
HU (1) HUE065630T2 (es)
MX (1) MX2021004733A (es)
NZ (1) NZ775539A (es)
PL (1) PL3861743T3 (es)
PT (1) PT3861743T (es)
WO (1) WO2020085954A1 (es)

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CN117459721A (zh) 2024-01-26
US20240040146A1 (en) 2024-02-01
AU2019364883B2 (en) 2023-07-20
PT3861743T (pt) 2024-02-29
CA3117482A1 (en) 2020-04-30
CL2021001047A1 (es) 2021-09-24
EP3861743B1 (en) 2023-12-27
CN112771870B (zh) 2023-11-10
EP4333434A1 (en) 2024-03-06
CN117459720A (zh) 2024-01-26
PL3861743T3 (pl) 2024-05-13
CN118055224A (zh) 2024-05-17
NZ775539A (en) 2023-06-30
KR20210072098A (ko) 2021-06-16
AU2019364883A1 (en) 2021-05-27
JP2023164872A (ja) 2023-11-14
WO2020085954A1 (en) 2020-04-30
ES2974160T3 (es) 2024-06-26
US11765383B2 (en) 2023-09-19
EP3861743A4 (en) 2021-12-01
JP2022505771A (ja) 2022-01-14
CN117478875A (zh) 2024-01-30
BR112021007592A2 (pt) 2021-07-27
CN113315974B (zh) 2022-06-10
HUE065630T2 (hu) 2024-06-28
US20210243470A1 (en) 2021-08-05
JP7395580B2 (ja) 2023-12-11
CN112771870A (zh) 2021-05-07
CN113315974A (zh) 2021-08-27
EP3861743A1 (en) 2021-08-11

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