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MX2019003549A - Metodo y aparato para codificacion y decodificacion de imagenes a traves de inter-prediccion. - Google Patents

Metodo y aparato para codificacion y decodificacion de imagenes a traves de inter-prediccion.

Info

Publication number
MX2019003549A
MX2019003549A MX2019003549A MX2019003549A MX2019003549A MX 2019003549 A MX2019003549 A MX 2019003549A MX 2019003549 A MX2019003549 A MX 2019003549A MX 2019003549 A MX2019003549 A MX 2019003549A MX 2019003549 A MX2019003549 A MX 2019003549A
Authority
MX
Mexico
Prior art keywords
decoding
prediction
block
inter
motion
Prior art date
Application number
MX2019003549A
Other languages
English (en)
Other versions
MX394781B (es
Inventor
An Jicheng
Chen Xu
Zheng Jianhua
Original Assignee
Huawei 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.)
Filing date
Publication date
Application filed by Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of MX2019003549A publication Critical patent/MX2019003549A/es
Publication of MX394781B publication Critical patent/MX394781B/es

Links

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
    • H04N19/134—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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • 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
    • H04N19/50—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
    • H04N19/523—Motion estimation or motion compensation with sub-pixel accuracy
    • 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
    • H04N19/53—Multi-resolution motion estimation; Hierarchical motion 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
    • H04N19/533—Motion estimation using multistep search, e.g. 2D-log search or one-at-a-time search [OTS]
    • 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
    • H04N19/56—Motion estimation with initialisation of the vector search, e.g. estimating a good candidate to initiate a search
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding

Landscapes

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

Abstract

Se proporciona un método y un aparato para codificación y decodificación de imágenes a través de inter-predicción. El método de decodificación incluye: determinar información de movimiento de predicción de un primer bloque de decodificación; llevar a cabo predicción bidireccional en el primer bloque de decodificación con base en la información de movimiento de predicción para obtener un primer bloque de predicción de decodificación; llevar a cabo búsqueda de movimiento de primera precisión en un bloque de imagen de referencia de predicción para obtener al menos un segundo bloque de predicción de decodificación, donde una ubicación de búsqueda de la búsqueda de movimiento se determina al utilizar un predictor de vector de movimiento y la primera precisión; calcular una diferencia entre el primer bloque de predicción de decodificación y cada segundo bloque de predicción de decodificación para obtener un predictor de vector de movimiento objetivo del primer bloque de decodificación; y actualizar el predictor de vector de movimiento objetivo a través de búsqueda de movimiento. Por lo tanto, se mejora precisión de inter-predicción.
MX2019003549A 2016-09-30 2016-09-30 Método y aparato para codificación y decodificación de imágenes a través de inter-predicción. MX394781B (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/101289 WO2018058622A1 (zh) 2016-09-30 2016-09-30 一种帧间预测的图像编解码方法和装置

Publications (2)

Publication Number Publication Date
MX2019003549A true MX2019003549A (es) 2019-08-12
MX394781B MX394781B (es) 2025-03-24

Family

ID=61763050

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2019003549A MX394781B (es) 2016-09-30 2016-09-30 Método y aparato para codificación y decodificación de imágenes a través de inter-predicción.

Country Status (11)

Country Link
US (1) US11039144B2 (es)
EP (1) EP3509304B1 (es)
JP (1) JP6700489B2 (es)
KR (2) KR102322437B1 (es)
CN (1) CN109479143B (es)
AU (1) AU2016425069B2 (es)
BR (1) BR112019005678B1 (es)
MX (1) MX394781B (es)
MY (1) MY194555A (es)
RU (1) RU2715010C1 (es)
WO (1) WO2018058622A1 (es)

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Also Published As

Publication number Publication date
RU2715010C1 (ru) 2020-02-21
BR112019005678A2 (pt) 2019-06-11
US20190230362A1 (en) 2019-07-25
KR102322437B1 (ko) 2021-11-05
MY194555A (en) 2022-12-01
JP6700489B2 (ja) 2020-05-27
CN109479143B (zh) 2020-09-08
AU2016425069A1 (en) 2019-04-11
KR102219320B1 (ko) 2021-02-23
EP3509304A1 (en) 2019-07-10
AU2016425069B2 (en) 2022-03-03
WO2018058622A1 (zh) 2018-04-05
KR20210021142A (ko) 2021-02-24
KR20190045935A (ko) 2019-05-03
JP2019530362A (ja) 2019-10-17
CN109479143A (zh) 2019-03-15
EP3509304B1 (en) 2023-11-01
BR112019005678B1 (pt) 2023-12-12
US11039144B2 (en) 2021-06-15
MX394781B (es) 2025-03-24
EP3509304A4 (en) 2019-08-21

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