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MX2009010527A - Vectores de movimiento de alta precision para codificacion de video con baja complejidad de codificacion y decodificacion. - Google Patents

Vectores de movimiento de alta precision para codificacion de video con baja complejidad de codificacion y decodificacion.

Info

Publication number
MX2009010527A
MX2009010527A MX2009010527A MX2009010527A MX2009010527A MX 2009010527 A MX2009010527 A MX 2009010527A MX 2009010527 A MX2009010527 A MX 2009010527A MX 2009010527 A MX2009010527 A MX 2009010527A MX 2009010527 A MX2009010527 A MX 2009010527A
Authority
MX
Mexico
Prior art keywords
pixel
quarter
accuracy
motion vectors
samples
Prior art date
Application number
MX2009010527A
Other languages
English (en)
Inventor
Jani Lainema
Kemal Ugur
Original Assignee
Nokia Corp
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 Nokia Corp filed Critical Nokia Corp
Publication of MX2009010527A publication Critical patent/MX2009010527A/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
    • H04N19/50—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
    • H04N19/60—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)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

Se puede proporcionar una interpolación en dos etapas para muestras de predicción de fotogramas con una precisión de cuarto de píxel y mejor. Todas las muestras con precisión de cuarto de píxel y mejor pueden utilizar bien medios píxeles o píxeles completos/enteros en una interpolación bilineal para permitir el uso de vectores de movimiento de mayor precisión, tales como vectores de movimiento con precisión de un octavo de píxel. Los vectores de movimiento se pueden restringir de manera tal que no se permita que apunten a toda muestra de subpíxel o rejilla de subpíxel posible, sino a un subconjunto de aquellas muestras de subpíxel. Además, las mismas muestras de medio píxel o píxel entero/completo que se pueden utilizar para obtener una muestra de cuarto de píxel se pueden usar asimismo para obtener una muestra de un octavo de píxel a la cual está conectada la muestra de cuarto de píxel. En consecuencia, para cada muestra de cuarto de píxel, un vector de movimiento podría apuntar a dos posiciones/localizaciones adicionales con una precisión de un octavo de píxel, en donde las dos posiciones/localizaciones adicionales se pueden calcular utilizando las mismas muestras de medio píxel o píxel entero que se utilizaron para obtener la muestra de cuarto de píxel. Por lo tanto, se puede conseguir una precisión arbitraria del vector de movimiento sin necesidad de realizar etapas de interpolación adicionales o de aumentar la complejidad de un decodificador configurado para decodificar datos de vector de movimiento.
MX2009010527A 2007-04-09 2008-04-08 Vectores de movimiento de alta precision para codificacion de video con baja complejidad de codificacion y decodificacion. MX2009010527A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US91078307P 2007-04-09 2007-04-09
PCT/IB2008/051325 WO2008122956A2 (en) 2007-04-09 2008-04-08 High accuracy motion vectors for video coding with low encoder and decoder complexity

Publications (1)

Publication Number Publication Date
MX2009010527A true MX2009010527A (es) 2009-10-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
MX2009010527A MX2009010527A (es) 2007-04-09 2008-04-08 Vectores de movimiento de alta precision para codificacion de video con baja complejidad de codificacion y decodificacion.

Country Status (9)

Country Link
US (1) US8275041B2 (es)
EP (1) EP2132941B1 (es)
JP (1) JP2010524379A (es)
KR (1) KR101129972B1 (es)
CN (1) CN101658044B (es)
BR (1) BRPI0809668B1 (es)
CA (1) CA2681210C (es)
MX (1) MX2009010527A (es)
WO (1) WO2008122956A2 (es)

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KR20210006304A (ko) * 2019-07-08 2021-01-18 현대자동차주식회사 인터 예측을 이용하여 비디오를 부호화 및 복호화하는 방법 및 장치
CN117939147B (zh) * 2024-03-25 2024-05-28 北京中星微人工智能芯片技术有限公司 视频编解码装置

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Also Published As

Publication number Publication date
CA2681210A1 (en) 2008-10-16
JP2010524379A (ja) 2010-07-15
WO2008122956A2 (en) 2008-10-16
CN101658044A (zh) 2010-02-24
EP2132941A2 (en) 2009-12-16
CA2681210C (en) 2021-03-02
BRPI0809668A2 (pt) 2014-10-07
CN101658044B (zh) 2012-11-14
US20080253459A1 (en) 2008-10-16
BRPI0809668B1 (pt) 2020-07-28
US8275041B2 (en) 2012-09-25
KR101129972B1 (ko) 2012-03-26
WO2008122956A3 (en) 2008-12-24
EP2132941B1 (en) 2017-05-17
KR20100005211A (ko) 2010-01-14

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