MX2021011197A - Metodos y dispositivos para control de ancho de bit para flujo optico bidireccional. - Google Patents

Metodos y dispositivos para control de ancho de bit para flujo optico bidireccional.

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Publication number
MX2021011197A
MX2021011197A MX2021011197A MX2021011197A MX2021011197A MX 2021011197 A MX2021011197 A MX 2021011197A MX 2021011197 A MX2021011197 A MX 2021011197A MX 2021011197 A MX2021011197 A MX 2021011197A MX 2021011197 A MX2021011197 A MX 2021011197A
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MX
Mexico
Prior art keywords
sup
video block
bit
obtaining
prediction samples
Prior art date
Application number
MX2021011197A
Other languages
English (en)
Inventor
Xianglin Wang
Xiaoyu Xiu
Yi- Wen Chen
Original Assignee
Beijing Dajia Internet Information Tech Co Ltd
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Publication date
Application filed by Beijing Dajia Internet Information Tech Co Ltd filed Critical Beijing Dajia Internet Information Tech Co Ltd
Publication of MX2021011197A publication Critical patent/MX2021011197A/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
    • H04N19/134—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
    • 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
    • H04N19/119—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
    • H04N19/136—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
    • H04N19/169—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
    • H04N19/172—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 picture, frame or field
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • 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
    • H04N19/169—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
    • H04N19/42—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
    • H04N19/521—Processing of motion vectors for estimating the reliability of the determined motion vectors or motion vector field, e.g. for smoothing the motion vector field or for correcting 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
    • H04N19/537—Motion estimation other than block-based
    • 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
    • H04N19/10—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
    • H04N19/182—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 a pixel

Abstract

La presente descripción se refiere a un método de control de ancho de banda de flujo óptico bidireccional (BDOF) para codificar una señal de video; el método incluye obtener una primera imagen de referencia I(0) y una segunda imagen de referencia I(1) asociadas con un bloque de video, obtener primeras muestras de predicción I(0)(i,j) del bloque de video de un bloque de referencia en la primera imagen de referencia I(0), obtener segundas muestras de predicción I(1)(i,j) del bloque de video de un bloque de referencia en la segunda imagen de referencia I(1), controlar anchos de bit internos del BDOF al derivar anchos de bit internos de parámetros intermedios, obtener refinaciones de movimiento para muestras en el bloque de video con base en el BDOF que se aplica al bloque de video con base en las primeras muestras de predicción I(0)(i,j) y las segundas muestras de predicción I(1)(i,j), y obtener muestras de bipredicción del bloque de video con base en las refinaciones de movimiento.
MX2021011197A 2019-03-15 2020-03-16 Metodos y dispositivos para control de ancho de bit para flujo optico bidireccional. MX2021011197A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962819408P 2019-03-15 2019-03-15
PCT/US2020/023027 WO2020190896A1 (en) 2019-03-15 2020-03-16 Methods and devices for bit-width control for bi-directional optical flow

Publications (1)

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MX2021011197A true MX2021011197A (es) 2021-10-22

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US (2) US11843785B2 (es)
EP (1) EP3925224A4 (es)
JP (3) JP7100772B2 (es)
KR (2) KR20220112864A (es)
CN (1) CN113632484A (es)
MX (1) MX2021011197A (es)
WO (1) WO2020190896A1 (es)

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US10348662B2 (en) 2016-07-19 2019-07-09 Snap Inc. Generating customized electronic messaging graphics
CN111083484A (zh) 2018-10-22 2020-04-28 北京字节跳动网络技术有限公司 基于子块的预测
CN111083489A (zh) 2018-10-22 2020-04-28 北京字节跳动网络技术有限公司 多次迭代运动矢量细化
WO2020098647A1 (en) 2018-11-12 2020-05-22 Beijing Bytedance Network Technology Co., Ltd. Bandwidth control methods for affine prediction
CN113170171B (zh) 2018-11-20 2024-04-12 北京字节跳动网络技术有限公司 组合帧间帧内预测模式的预测细化
EP3861742A4 (en) 2018-11-20 2022-04-13 Beijing Bytedance Network Technology Co., Ltd. DIFFERENCE CALCULATION BASED ON SPATIAL POSITION
EP3915259A4 (en) 2019-03-06 2022-03-30 Beijing Bytedance Network Technology Co., Ltd. USE OF A CONVERTED UNIVERSITY PREDICTION CANDIDATE
KR20230169434A (ko) 2019-04-02 2023-12-15 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 디코더 측 움직임 벡터 유도
WO2020200277A1 (en) * 2019-04-02 2020-10-08 Beijing Bytedance Network Technology Co., Ltd. Adaptive loop filtering in video processing
CN113711609B (zh) 2019-04-19 2023-12-01 北京字节跳动网络技术有限公司 利用光流的预测细化过程中的增量运动矢量
EP4304178A3 (en) 2019-04-19 2024-03-06 Beijing Bytedance Network Technology Co., Ltd. Gradient calculation in different motion vector refinements

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CN115037928A (zh) 2016-02-03 2022-09-09 Oppo广东移动通信有限公司 运动图像解码装置、编码装置、以及预测图像生成装置
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DE102017105706A1 (de) 2017-03-16 2018-09-20 Aesculap Ag Additiv hergestelltes medizintechnisches Instrument sowie Verfahren zur Herstellung eines solchen Instruments
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JP2023169341A (ja) 2023-11-29
KR20210119549A (ko) 2021-10-05
CN114363612A (zh) 2022-04-15
KR20220112864A (ko) 2022-08-11
US11843785B2 (en) 2023-12-12
JP2022522217A (ja) 2022-04-14
KR102429449B1 (ko) 2022-08-03
JP2022130647A (ja) 2022-09-06
CN113632484A (zh) 2021-11-09
US20220007030A1 (en) 2022-01-06
EP3925224A1 (en) 2021-12-22
WO2020190896A1 (en) 2020-09-24
EP3925224A4 (en) 2022-11-30
US20220030270A1 (en) 2022-01-27
JP7100772B2 (ja) 2022-07-13
JP7355894B2 (ja) 2023-10-03

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