MX2021002201A - Metodos y aparato de codificacion de video mediante la prediccion de vector de movimiento temporal basada en subbloques. - Google Patents

Metodos y aparato de codificacion de video mediante la prediccion de vector de movimiento temporal basada en subbloques.

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Publication number
MX2021002201A
MX2021002201A MX2021002201A MX2021002201A MX2021002201A MX 2021002201 A MX2021002201 A MX 2021002201A MX 2021002201 A MX2021002201 A MX 2021002201A MX 2021002201 A MX2021002201 A MX 2021002201A MX 2021002201 A MX2021002201 A MX 2021002201A
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MX
Mexico
Prior art keywords
current
picture
motion vector
computing device
subblock
Prior art date
Application number
MX2021002201A
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English (en)
Inventor
Yi-Wen Chen
Xianglin Wang
Original Assignee
Beijing Dajia Internet Information 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 Beijing Dajia Internet Information Tech Co Ltd filed Critical Beijing Dajia Internet Information Tech Co Ltd
Publication of MX2021002201A publication Critical patent/MX2021002201A/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
    • H04N19/102—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
    • H04N19/134—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
    • H04N19/176—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
    • H04N19/70—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
    • H04N19/96—Tree coding, e.g. quad-tree coding

Abstract

Un método de predicción de vector de movimiento temporal basada en subbloques se realiza en un dispositivo informático. El dispositivo informático adquiere un flujo de bits de video que incluye datos asociados con múltiples imágenes codificadas. Mientras decodifica una imagen actual en el flujo de bits de video, el dispositivo informático selecciona, de acuerdo con elementos de sintaxis señalados en el flujo de bits de video, una imagen de referencia como una imagen intercalada de la imagen actual, y determina un cambio de movimiento entre la imagen intercalada y la imagen actual a partir de la información de movimiento de los bloques espacialmente cercanos de una unidad de codificación actual (CU) de acuerdo con un orden fijo. Después, el dispositivo informático separa la CU actual en múltiples sub-CU, obtiene un predictor de vector de movimiento temporal para cada sub-CU a partir del cambio de movimiento y la información de movimiento de un bloque en la imagen intercalada que corresponde a un subbloque respectivo de la imagen actual y decodifica la CU actual de acuerdo con los predictores de vector de movimiento temporal.
MX2021002201A 2018-08-29 2019-08-29 Metodos y aparato de codificacion de video mediante la prediccion de vector de movimiento temporal basada en subbloques. MX2021002201A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201862724506P 2018-08-29 2018-08-29
PCT/US2019/048864 WO2020047289A1 (en) 2018-08-29 2019-08-29 Methods and apparatus of video coding using subblock-based temporal motion vector prediction

Publications (1)

Publication Number Publication Date
MX2021002201A true MX2021002201A (es) 2021-05-14

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MX2021002201A MX2021002201A (es) 2018-08-29 2019-08-29 Metodos y aparato de codificacion de video mediante la prediccion de vector de movimiento temporal basada en subbloques.

Country Status (9)

Country Link
US (3) US11368713B2 (es)
EP (1) EP3827589A4 (es)
JP (3) JP7128348B2 (es)
KR (4) KR20230169474A (es)
CN (5) CN116980591B (es)
MX (1) MX2021002201A (es)
RU (1) RU2757209C1 (es)
WO (1) WO2020047289A1 (es)
ZA (1) ZA202101242B (es)

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Publication number Publication date
KR20210030473A (ko) 2021-03-17
US11936901B2 (en) 2024-03-19
CN113242432B (zh) 2022-01-25
CN112789859A (zh) 2021-05-11
JP2022120058A (ja) 2022-08-17
KR102359877B1 (ko) 2022-02-08
EP3827589A4 (en) 2021-09-29
JP2021527371A (ja) 2021-10-11
WO2020047289A1 (en) 2020-03-05
CN116761000A (zh) 2023-09-15
US11368713B2 (en) 2022-06-21
KR20220012431A (ko) 2022-02-03
JP2024029187A (ja) 2024-03-05
KR20240013897A (ko) 2024-01-30
ZA202101242B (en) 2023-03-29
CN113242432A (zh) 2021-08-10
KR102643422B1 (ko) 2024-03-04
CN114363610A (zh) 2022-04-15
CN116980591B (zh) 2024-03-15
JP7128348B2 (ja) 2022-08-30
CN116761000B (zh) 2023-12-19
US20240098301A1 (en) 2024-03-21
EP3827589A1 (en) 2021-06-02
CN116980591A (zh) 2023-10-31
US20210185350A1 (en) 2021-06-17
KR20230169474A (ko) 2023-12-15
RU2757209C1 (ru) 2021-10-12
US20220224935A1 (en) 2022-07-14
CN114363610B (zh) 2022-09-16
JP7461986B2 (ja) 2024-04-04

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