MX2021009529A - Metodos y dispositivos para aplicar de forma selectiva el flujo optico bidireccional y el refinamiento del vector de movimiento en el decodificador para la codificacion de video. - Google Patents

Metodos y dispositivos para aplicar de forma selectiva el flujo optico bidireccional y el refinamiento del vector de movimiento en el decodificador para la codificacion de video.

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Publication number
MX2021009529A
MX2021009529A MX2021009529A MX2021009529A MX2021009529A MX 2021009529 A MX2021009529 A MX 2021009529A MX 2021009529 A MX2021009529 A MX 2021009529A MX 2021009529 A MX2021009529 A MX 2021009529A MX 2021009529 A MX2021009529 A MX 2021009529A
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Mexico
Prior art keywords
video coding
decoder
motion vector
methods
optical flow
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MX2021009529A
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English (en)
Inventor
Xianglin Wang
Xiaoyu Xiu
Yi-Wen Chen
Tsung-Chuan Ma
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Beijing Dajia Internet Information Tech Co Ltd
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Publication of MX2021009529A publication Critical patent/MX2021009529A/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
    • H04N19/577—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
    • H04N19/169—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
    • H04N19/10—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
    • H04N19/127—Prioritisation of hardware or computational resources
    • 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
    • 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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/149—Data rate or code amount at the encoder output by estimating the code amount by means of a model, e.g. mathematical model or statistical model
    • 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
    • H04N19/20—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video object 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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • 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
    • H04N19/90—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
    • H04N19/10—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

Abstract

Los métodos de aplicación selectiva del Flujo Óptico Bidireccional (BDOF) y el Refinamiento de Vector de Movimiento en el Decodificador (DMVR) en bloques codificados en inter-modo que se emplean en los estándares de codificación de video, tal como el diseño de la versión actual del estándar de Codificación de Video Versátil (VVC) actual, se realizan en un dispositivo de cómputo. En un método, cuando un bloque actual es elegible para ambas aplicaciones de DMVR y BDOF con base en una pluralidad de condiciones predefinidas, el dispositivo de cómputo utiliza un criterio predefinido para clasificar el bloque actual y, después, utiliza la clasificación al aplicar el BDOF o el DMVR, pero no ambos, en el bloque.
MX2021009529A 2019-02-08 2020-02-08 Metodos y dispositivos para aplicar de forma selectiva el flujo optico bidireccional y el refinamiento del vector de movimiento en el decodificador para la codificacion de video. MX2021009529A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962803417P 2019-02-08 2019-02-08
PCT/US2020/017382 WO2020163837A1 (en) 2019-02-08 2020-02-08 Methods and devices for selectively applying bi-directional optical flow and decoder-side motion vector refinement for video coding

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MX2021009529A true MX2021009529A (es) 2021-09-23

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US (2) US20210368166A1 (es)
EP (3) EP3909247B1 (es)
JP (4) JP7232345B2 (es)
KR (4) KR102409275B1 (es)
CN (7) CN113424537A (es)
DK (1) DK3909247T3 (es)
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WO (1) WO2020163837A1 (es)

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CN113574891B (zh) 2019-02-24 2024-03-22 Lg 电子株式会社 基于dmvr的帧间预测方法和设备
CN112004091B (zh) * 2020-07-31 2021-08-03 浙江大华技术股份有限公司 帧间预测方法及其相关装置
CN112132915B (zh) * 2020-08-10 2022-04-26 浙江大学 一种基于生成对抗机制的多样化动态延时视频生成方法
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EP4333436A2 (en) 2024-03-06
CN113424537A (zh) 2021-09-21
US20210368166A1 (en) 2021-11-25
JP2024012627A (ja) 2024-01-30
KR102384240B1 (ko) 2022-04-08
CN113965746B (zh) 2022-08-12
CN111294598A (zh) 2020-06-16
EP4333435A2 (en) 2024-03-06
JP2023099145A (ja) 2023-07-11
KR20210132247A (ko) 2021-11-03
KR20210102483A (ko) 2021-08-19
CN111294598B (zh) 2022-01-21
CN113965746A (zh) 2022-01-21
CN115209159B (zh) 2023-08-29
CN114286101A (zh) 2022-04-05
JP7339395B2 (ja) 2023-09-05
CN116886925A (zh) 2023-10-13
EP3909247A4 (en) 2022-06-29
CN114286101B (zh) 2022-10-04
WO2020163837A1 (en) 2020-08-13
EP4333436A3 (en) 2024-05-01
EP3909247B1 (en) 2024-04-10
KR20220046005A (ko) 2022-04-13
US20210368200A1 (en) 2021-11-25
EP4333435A3 (en) 2024-05-08
JP2022122911A (ja) 2022-08-23
KR102409275B1 (ko) 2022-06-14
CN115209159A (zh) 2022-10-18
CN116828185A (zh) 2023-09-29
DK3909247T3 (da) 2024-04-15
JP7232345B2 (ja) 2023-03-02
JP2022517134A (ja) 2022-03-04
EP3909247A1 (en) 2021-11-17
KR20220083862A (ko) 2022-06-20

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