CL2021001465A1 - Método y dispositivo de decodificación de video, y método y dispositivo de codificación de video - Google Patents

Método y dispositivo de decodificación de video, y método y dispositivo de codificación de video

Info

Publication number
CL2021001465A1
CL2021001465A1 CL2021001465A CL2021001465A CL2021001465A1 CL 2021001465 A1 CL2021001465 A1 CL 2021001465A1 CL 2021001465 A CL2021001465 A CL 2021001465A CL 2021001465 A CL2021001465 A CL 2021001465A CL 2021001465 A1 CL2021001465 A1 CL 2021001465A1
Authority
CL
Chile
Prior art keywords
sub
luma
block
blocks
motion vector
Prior art date
Application number
CL2021001465A
Other languages
English (en)
Inventor
Jeong Seungsoo
Park Minwoo
Choi Kiho
Tamse Anish
Ryu Gahyun
Park Minsoo
Choi Narae
Choi Woongil
Piao Yinji
Original Assignee
Samsung Electronics 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.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of CL2021001465A1 publication Critical patent/CL2021001465A1/es

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Classifications

    • 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
    • H04N19/119—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
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • 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
    • H04N19/134—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
    • H04N19/10—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
    • H04N19/186—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 colour or a chrominance component
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

Un método y un dispositivo de decodificación de video para determinar si un modo de predicción de un bloque actual es el modo afín; y cuando el modo de predicción del bloque actual es el modo afín, dividir un bloque de luma del bloque actual en una pluralidad de sub-bloques de luma con una forma cuadrada en función un tamaño de sub-bloque predefinido; determinar un vector de movimiento de luma promedio para cuatro sub-bloques de luma vecinos entre la pluralidad de sub-bloques de luma utilizando un vector de movimiento de un sub-bloque de luma superior izquierdo de los cuatro subbloques de luma, y un vector de movimiento de un sub-bloque de luma inferior derecho de los cuatro sub-bloques de luma; determinar que el vector de movimiento de luma promedio es un vector de movimiento de un sub-bloque de croma actual correspondiente a los cuatro sub-bloques de luma; y realizar la predicción del sub-bloque de croma actual utilizando el vector de movimiento determinado en un proceso de codificación y decodificación de video.
CL2021001465A 2018-12-07 2021-06-03 Método y dispositivo de decodificación de video, y método y dispositivo de codificación de video CL2021001465A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201862776589P 2018-12-07 2018-12-07
US201862783653P 2018-12-21 2018-12-21

Publications (1)

Publication Number Publication Date
CL2021001465A1 true CL2021001465A1 (es) 2021-11-12

Family

ID=70975167

Family Applications (1)

Application Number Title Priority Date Filing Date
CL2021001465A CL2021001465A1 (es) 2018-12-07 2021-06-03 Método y dispositivo de decodificación de video, y método y dispositivo de codificación de video

Country Status (8)

Country Link
US (2) US11425416B2 (es)
EP (1) EP3893509A4 (es)
KR (1) KR20210072118A (es)
CN (1) CN113170189A (es)
BR (1) BR112021010706A2 (es)
CL (1) CL2021001465A1 (es)
CO (1) CO2021007877A2 (es)
WO (1) WO2020117010A1 (es)

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WO2023220970A1 (zh) * 2022-05-18 2023-11-23 Oppo广东移动通信有限公司 视频编码方法、装置、设备、系统、及存储介质
WO2024074134A1 (en) * 2022-10-04 2024-04-11 Mediatek Inc. Affine motion based prediction in video coding

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WO2016008157A1 (en) * 2014-07-18 2016-01-21 Mediatek Singapore Pte. Ltd. Methods for motion compensation using high order motion model
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Also Published As

Publication number Publication date
CN113170189A (zh) 2021-07-23
WO2020117010A1 (ko) 2020-06-11
US20210377560A1 (en) 2021-12-02
CO2021007877A2 (es) 2021-06-21
US11425416B2 (en) 2022-08-23
EP3893509A1 (en) 2021-10-13
BR112021010706A2 (pt) 2021-11-30
US20220353526A1 (en) 2022-11-03
US11943469B2 (en) 2024-03-26
KR20210072118A (ko) 2021-06-16
EP3893509A4 (en) 2022-10-26

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