MX2014002541A - Dispositivo de codificacion, dispositivo de decodificacion, metodo de codificacion, y metodo de decodificacion. - Google Patents

Dispositivo de codificacion, dispositivo de decodificacion, metodo de codificacion, y metodo de decodificacion.

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Publication number
MX2014002541A
MX2014002541A MX2014002541A MX2014002541A MX2014002541A MX 2014002541 A MX2014002541 A MX 2014002541A MX 2014002541 A MX2014002541 A MX 2014002541A MX 2014002541 A MX2014002541 A MX 2014002541A MX 2014002541 A MX2014002541 A MX 2014002541A
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Mexico
Prior art keywords
encoding
decoding
weight coefficient
standard value
value
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MX2014002541A
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English (en)
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MX336158B (es
Inventor
Akiyuki Tanizawa
Takeshi Chujoh
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Toshiba Kk
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Publication of MX2014002541A publication Critical patent/MX2014002541A/es
Publication of MX336158B publication Critical patent/MX336158B/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
    • 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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
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    • 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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/15—Data rate or code amount at the encoder output by monitoring actual compressed data size at the memory before deciding storage at the transmission buffer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • 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
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    • H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
    • H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • H—ELECTRICITY
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    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
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    • H—ELECTRICITY
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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • 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
    • H04N19/547—Motion estimation performed in a transform domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
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    • 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
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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • 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
    • H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
    • 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
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    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • 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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/147—Data rate or code amount at the encoder output according to rate distortion criteria
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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
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    • 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
    • H04N19/182—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 pixel
    • 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
    • H04N19/184—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 bits, e.g. of the compressed video stream
    • 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

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

Abstract

Este método de codificación incluye una etapa de derivación y una etapa de codificación. En la etapa de derivación, con base en un grado de exactitud del punto fijo que representa la brusquedad de un coeficiente de ponderación para la predicción de compensación de movimiento del cambio en los valores de pixel a través de la multiplicación por una imagen de referencia, se deriva un primer valor estándar que es un valor estándar para el coeficiente de ponderación. En la etapa de codificación, se codifica un primer valor diferencial que es el valor diferencial del coeficiente de ponderación y el primer valor estándar. El coeficiente de ponderación se incluye dentro de un rango de exactitud de bits predeterminada centrado aproximadamente en el primer valor estándar.
MX2014002541A 2012-06-27 2012-06-27 Dispositivo de codificacion, dispositivo de decodificacion, metodo de codificacion, y metodo de decodificacion. MX336158B (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2012/066410 WO2014002217A1 (ja) 2012-06-27 2012-06-27 符号化方法、復号方法、符号化装置、及び復号装置

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MX2014002541A true MX2014002541A (es) 2014-04-16
MX336158B MX336158B (es) 2016-01-11

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MX2016000273A MX353824B (es) 2012-06-27 2012-06-27 Dispositivo de codificación, dispositivo de decodificación, método de codificación, y método de decodificación.

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US (9) US9462291B2 (es)
EP (5) EP3506639B1 (es)
JP (1) JP5925801B2 (es)
KR (2) KR101624059B1 (es)
CN (3) CN106791833B (es)
AU (1) AU2012383769B2 (es)
BR (1) BR112014004652B1 (es)
CA (4) CA3070902C (es)
MX (2) MX336158B (es)
RU (1) RU2609063C2 (es)
SG (1) SG11201400296RA (es)
WO (1) WO2014002217A1 (es)

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EP3700215B1 (en) 2021-10-27
JP5925801B2 (ja) 2016-05-25
US20190200019A1 (en) 2019-06-27
EP2869574B1 (en) 2018-08-29
AU2012383769B2 (en) 2015-08-06
CA2971911C (en) 2020-03-24
US20200244964A1 (en) 2020-07-30
CN106899849B (zh) 2019-08-13
KR20140057311A (ko) 2014-05-12
EP3193506A1 (en) 2017-07-19
MX353824B (es) 2018-01-31
CN103765897A (zh) 2014-04-30
CA2971911A1 (en) 2014-01-03
EP3506639A1 (en) 2019-07-03
CN103765897B (zh) 2017-09-26
US20140079125A1 (en) 2014-03-20
KR101624059B1 (ko) 2016-05-24
CA3070902C (en) 2022-08-02
US20170163984A1 (en) 2017-06-08
CN106791833B (zh) 2019-10-11
BR112014004652A2 (pt) 2017-03-28
RU2014107491A (ru) 2016-08-10
US9621914B2 (en) 2017-04-11
EP3203745A1 (en) 2017-08-09
CN106899849A (zh) 2017-06-27
US20150264388A1 (en) 2015-09-17
CA2847304A1 (en) 2014-01-03
US20170163998A1 (en) 2017-06-08
KR20150129065A (ko) 2015-11-18
US10257516B2 (en) 2019-04-09
CA2847304C (en) 2017-08-22
US11363270B2 (en) 2022-06-14
EP2869574A4 (en) 2016-05-18
BR112014004652B1 (pt) 2022-05-10
US10277900B2 (en) 2019-04-30
SG11201400296RA (en) 2014-09-26
CA3160230A1 (en) 2014-01-03
CN106791833A (zh) 2017-05-31
WO2014002217A1 (ja) 2014-01-03
JPWO2014002217A1 (ja) 2016-05-26
US9462291B2 (en) 2016-10-04
US20220256158A1 (en) 2022-08-11
RU2609063C2 (ru) 2017-01-30
US11202075B2 (en) 2021-12-14
EP2869574A1 (en) 2015-05-06
US11800111B2 (en) 2023-10-24
KR101639965B1 (ko) 2016-07-14
EP3700215A1 (en) 2020-08-26
EP3203745B1 (en) 2021-12-01
CA3070902A1 (en) 2014-01-03
US20200186804A1 (en) 2020-06-11
US10609376B2 (en) 2020-03-31
EP3506639B1 (en) 2021-12-29
US20240007638A1 (en) 2024-01-04
AU2012383769A1 (en) 2014-03-20
MX336158B (es) 2016-01-11

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