MX2020004137A - Metodo y aparato para la compensacion de iluminacion adaptativa en codificacion y decodificacion de video. - Google Patents

Metodo y aparato para la compensacion de iluminacion adaptativa en codificacion y decodificacion de video.

Info

Publication number
MX2020004137A
MX2020004137A MX2020004137A MX2020004137A MX2020004137A MX 2020004137 A MX2020004137 A MX 2020004137A MX 2020004137 A MX2020004137 A MX 2020004137A MX 2020004137 A MX2020004137 A MX 2020004137A MX 2020004137 A MX2020004137 A MX 2020004137A
Authority
MX
Mexico
Prior art keywords
samples
selection
current block
motion vector
neighboring
Prior art date
Application number
MX2020004137A
Other languages
English (en)
Inventor
Philippe Bordes
Franck GALPIN
Fabien Racape
Original Assignee
Interdigital Vc Holdings 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
Priority claimed from EP17306333.0A external-priority patent/EP3468193A1/en
Application filed by Interdigital Vc Holdings Inc filed Critical Interdigital Vc Holdings Inc
Publication of MX2020004137A publication Critical patent/MX2020004137A/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
    • H04N19/169—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
    • H04N19/102—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
    • H04N19/136—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
    • H04N19/50—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
    • 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

Landscapes

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

Abstract

Se describen diferentes implementaciones para determinar uno o más parámetros de compensación de iluminación para un bloque actual codificado por un codificador de video o decodificado por un decodificador de video, con base en la selección de una o más muestras vecinas. La selección de la una o más muestras vecinas se basa en información usada para reconstruir una pluralidad de bloques reconstruidos vecinos. La selección puede basarse en la información de movimiento, tal como el vector de movimiento e información de imagen de referencia. En un ejemplo, solo se seleccionan muestras de bloques reconstruidos vecinos que tienen (1) el mismo índice de imagen de referencia y/o (2) un vector de movimiento cercano al vector de movimiento del bloque actual. En otro ejemplo, si el bloque actual deriva o hereda alguna información de movimiento de un bloque vecino superior o izquierdo, entonces solo las muestras vecinas superior o izquierda se seleccionan para el cálculo del parámetro de IC.
MX2020004137A 2017-10-05 2018-10-04 Metodo y aparato para la compensacion de iluminacion adaptativa en codificacion y decodificacion de video. MX2020004137A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP17306333.0A EP3468193A1 (en) 2017-10-05 2017-10-05 Method and apparatus for adaptive illumination compensation in video encoding and decoding
EP17306613 2017-11-21
PCT/US2018/054402 WO2019071001A1 (en) 2017-10-05 2018-10-04 METHOD AND APPARATUS FOR ADAPTIVE LIGHTING COMPENSATION IN VIDEO ENCODING AND DECODING

Publications (1)

Publication Number Publication Date
MX2020004137A true MX2020004137A (es) 2020-08-13

Family

ID=63966124

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2020004137A MX2020004137A (es) 2017-10-05 2018-10-04 Metodo y aparato para la compensacion de iluminacion adaptativa en codificacion y decodificacion de video.

Country Status (6)

Country Link
US (2) US11290730B2 (es)
EP (1) EP3692716A1 (es)
JP (2) JP7248664B2 (es)
CN (1) CN111194553A (es)
MX (1) MX2020004137A (es)
WO (1) WO2019071001A1 (es)

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US11206396B2 (en) * 2019-01-16 2021-12-21 Qualcomm Incorporated Local illumination compensation in video coding
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Also Published As

Publication number Publication date
US11290730B2 (en) 2022-03-29
US20200280727A1 (en) 2020-09-03
CN111194553A (zh) 2020-05-22
JP2020537393A (ja) 2020-12-17
WO2019071001A1 (en) 2019-04-11
JP2023082025A (ja) 2023-06-13
JP7248664B2 (ja) 2023-03-29
US20220239930A1 (en) 2022-07-28
US11711525B2 (en) 2023-07-25
EP3692716A1 (en) 2020-08-12

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