MX2021003042A - Método y dispositivo de predicción de imagen. - Google Patents

Método y dispositivo de predicción de imagen.

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Publication number
MX2021003042A
MX2021003042A MX2021003042A MX2021003042A MX2021003042A MX 2021003042 A MX2021003042 A MX 2021003042A MX 2021003042 A MX2021003042 A MX 2021003042A MX 2021003042 A MX2021003042 A MX 2021003042A MX 2021003042 A MX2021003042 A MX 2021003042A
Authority
MX
Mexico
Prior art keywords
unit
motion information
image
acquiring
reference unit
Prior art date
Application number
MX2021003042A
Other languages
English (en)
Inventor
Haitao Yang
Li Li
Zhuoyi Lv
Houqiang Li
Original Assignee
Huawei Tech Co Ltd
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Publication date
Application filed by Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of MX2021003042A publication Critical patent/MX2021003042A/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
    • H04N19/573—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
    • H04N19/10—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
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
    • 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
    • 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
    • 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
    • H04N19/50—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
    • H04N19/527—Global motion vector estimation
    • 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
    • H04N19/54—Motion estimation other than block-based using feature points or meshes

Abstract

Se divulga un método y dispositivo de predicción de imagen; el método incluye: obtener una primera unidad de referencia de una unidad de imagen, donde las imágenes predichas respectivas son obtenidas para la unidad de imagen y la primera unidad de referencia utilizando un mismo modelo afín; obtener información de movimiento de unidades de compensación de movimiento básicas en dos o más posiciones preestablecidas en la primera unidad de referencia; y obtener información de movimiento de una unidad de compensación de movimiento básica de la unidad de imagen de acuerdo con la información de movimiento; de esta manera, la información de movimiento de la primera unidad de referencia utilizando un mismo modelo de predicción afín es reutilizada, y se obtiene un vector de movimiento preciso de una unidad de imagen actual, mejorando la precisión de la predicción y manteniendo la complejidad de la codificación y decodificación, mejorando así el desempeño de la codificación y la decodificación.
MX2021003042A 2015-08-29 2015-12-31 Método y dispositivo de predicción de imagen. MX2021003042A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510543542.8A CN105163116B (zh) 2015-08-29 2015-08-29 图像预测的方法及设备
PCT/CN2015/100091 WO2017036045A1 (zh) 2015-08-29 2015-12-31 图像预测的方法及设备

Publications (1)

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MX2021003042A true MX2021003042A (es) 2023-01-13

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MX2018002414A MX2018002414A (es) 2015-08-29 2015-12-31 Metodo y dispositivo de prediccion de imagen.
MX2021003044A MX2021003044A (es) 2015-08-29 2015-12-31 Método y dispositivo de predicción de imagen.
MX2021003042A MX2021003042A (es) 2015-08-29 2015-12-31 Método y dispositivo de predicción de imagen.

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MX2018002414A MX2018002414A (es) 2015-08-29 2015-12-31 Metodo y dispositivo de prediccion de imagen.
MX2021003044A MX2021003044A (es) 2015-08-29 2015-12-31 Método y dispositivo de predicción de imagen.

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US (3) US10880543B2 (es)
EP (2) EP4274226A1 (es)
JP (2) JP6669855B2 (es)
KR (4) KR102408277B1 (es)
CN (3) CN105163116B (es)
AU (5) AU2015407876B2 (es)
BR (3) BR122020023970B1 (es)
DK (1) DK3331242T3 (es)
ES (1) ES2946901T3 (es)
FI (1) FI3331242T3 (es)
HR (1) HRP20230509T1 (es)
HU (1) HUE063094T2 (es)
LT (1) LT3331242T (es)
MX (3) MX2018002414A (es)
PL (1) PL3331242T3 (es)
PT (1) PT3331242T (es)
RU (3) RU2714362C2 (es)
SG (3) SG11201800920QA (es)
SI (1) SI3331242T1 (es)
WO (1) WO2017036045A1 (es)
ZA (2) ZA202109388B (es)

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