MX2021015524A - Metodo y dispositivo de codificacion de imagenes usando diferencias de vectores de movimiento. - Google Patents

Metodo y dispositivo de codificacion de imagenes usando diferencias de vectores de movimiento.

Info

Publication number
MX2021015524A
MX2021015524A MX2021015524A MX2021015524A MX2021015524A MX 2021015524 A MX2021015524 A MX 2021015524A MX 2021015524 A MX2021015524 A MX 2021015524A MX 2021015524 A MX2021015524 A MX 2021015524A MX 2021015524 A MX2021015524 A MX 2021015524A
Authority
MX
Mexico
Prior art keywords
motion vector
vector differences
prediction
image coding
inter prediction
Prior art date
Application number
MX2021015524A
Other languages
English (en)
Inventor
Junghak Nam
Naeri Park
Hyeongmoon Jang
Original Assignee
Lg Electronics Inc
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 Lg Electronics Inc filed Critical Lg Electronics Inc
Publication of MX2021015524A publication Critical patent/MX2021015524A/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
    • H04N19/134—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
    • H04N19/102—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
    • H04N19/103—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
    • H04N19/157—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
    • H04N19/50—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
    • H04N19/50—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
    • H04N19/573—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
    • H04N19/58—Motion compensation with long-term prediction, i.e. the reference frame for a current frame not being the temporally closest one
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

De acuerdo con modalidades del presente documento, se puede llevar a cabo un procedimiento de predicción para la codificación de imágenes/video, y el procedimiento de predicción puede incluir diferencias de vector de movimiento simétrico (SMVD) y diferencias de vector de movimiento de modo de fusión (MMVD) de acuerdo con una inter predicción. La inter predicción puede llevarse a cabo sobre la base de imágenes de referencia de una imagen actual, y los tipos (por ejemplo, una imagen de referencia a largo plazo, una imagen de referencia a corto plazo, etc.) de las imágenes de referencia pueden considerarse para la inter predicción. Por lo tanto, se puede mejorar el rendimiento y la eficiencia de codificación en el procedimiento de predicción.
MX2021015524A 2019-06-14 2020-06-15 Metodo y dispositivo de codificacion de imagenes usando diferencias de vectores de movimiento. MX2021015524A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962861982P 2019-06-14 2019-06-14
PCT/KR2020/007718 WO2020251324A1 (ko) 2019-06-14 2020-06-15 움직임 벡터 차분들을 이용한 영상 코딩 방법 및 장치

Publications (1)

Publication Number Publication Date
MX2021015524A true MX2021015524A (es) 2022-02-03

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MX2021015524A MX2021015524A (es) 2019-06-14 2020-06-15 Metodo y dispositivo de codificacion de imagenes usando diferencias de vectores de movimiento.

Country Status (10)

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US (3) US11523119B2 (es)
EP (1) EP3979650A4 (es)
JP (3) JP7331153B2 (es)
KR (3) KR20240100485A (es)
CN (1) CN114051726A (es)
AU (2) AU2020292097B2 (es)
BR (1) BR112021025044A2 (es)
CA (1) CA3143556A1 (es)
MX (1) MX2021015524A (es)
WO (1) WO2020251324A1 (es)

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CN116830581A (zh) * 2021-09-15 2023-09-29 腾讯美国有限责任公司 用于运动矢量差的经改进的信令方法和装置
US12047586B2 (en) * 2022-07-20 2024-07-23 Tencent America LLC Method and apparatus for inter prediction mode dependent scaling factors

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AU2020292097A1 (en) 2022-02-10
JP7513814B2 (ja) 2024-07-09
JP2022538800A (ja) 2022-09-06
CN114051726A (zh) 2022-02-15
KR20210157403A (ko) 2021-12-28
US20240259566A1 (en) 2024-08-01
WO2020251324A1 (ko) 2020-12-17
JP2023138751A (ja) 2023-10-02
BR112021025044A2 (pt) 2022-02-01
KR102618366B1 (ko) 2023-12-27
JP7331153B2 (ja) 2023-08-22
US11523119B2 (en) 2022-12-06
AU2020292097B2 (en) 2023-11-30
EP3979650A1 (en) 2022-04-06
CA3143556A1 (en) 2020-12-17
KR20240005165A (ko) 2024-01-11
US20230082083A1 (en) 2023-03-16
AU2024201368A1 (en) 2024-03-21
KR20240100485A (ko) 2024-07-01
US20220124344A1 (en) 2022-04-21
US12058339B2 (en) 2024-08-06
KR102679217B1 (ko) 2024-06-27
JP2024114886A (ja) 2024-08-23
EP3979650A4 (en) 2023-04-12

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