MX2021008260A - Un codificador, un decodificador y metodos correspondientes para ejecutar desbloqueo de crominancia para bloques que utilizan codificacion de crominancia conjunta. - Google Patents

Un codificador, un decodificador y metodos correspondientes para ejecutar desbloqueo de crominancia para bloques que utilizan codificacion de crominancia conjunta.

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Publication number
MX2021008260A
MX2021008260A MX2021008260A MX2021008260A MX2021008260A MX 2021008260 A MX2021008260 A MX 2021008260A MX 2021008260 A MX2021008260 A MX 2021008260A MX 2021008260 A MX2021008260 A MX 2021008260A MX 2021008260 A MX2021008260 A MX 2021008260A
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MX
Mexico
Prior art keywords
chroma
block
quantization parameter
deblocking
image
Prior art date
Application number
MX2021008260A
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English (en)
Inventor
Semih Esenlik
Roman Igorevich Chernyak
Biao Wang
Anand Meher Kotra
Han Gao
Elena Alexandrovna Alshina
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Huawei Tech Co Ltd
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Publication of MX2021008260A publication Critical patent/MX2021008260A/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
    • H04N19/10—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
    • H04N19/124—Quantisation
    • 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
    • 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
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • 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
    • H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence 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
    • H04N19/10—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
    • H04N19/169—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
    • H04N19/186—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
    • 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
    • H04N19/70—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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
    • H04N19/865—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness with detection of the former encoding block subdivision in decompressed video
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/87—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving scene cut or scene change detection in combination with video compression
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/88—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving rearrangement of data among different coding units, e.g. shuffling, interleaving, scrambling or permutation of pixel data or permutation of transform coefficient data among different blocks

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

Abstract

Un método de desbloqueo, para desbloquear un borde de bloque de crominancia (903, 913, 923, 933, 943, 953, 963, 973) entre un primer bloque de crominancia (901, 911, 921, 931, 941, 951, 961, 971) de un primer bloque de imagen (601, 601') y un segundo bloque de crominancia (902, 912, 922, 932, 942, 952, 962, 972) de un segundo bloque de imagen (602, 602'), en una codificación de imagen y/o una decodificación de imagen, en donde el método de desbloqueo comprende: ejecutar un proceso de decisión para el borde de bloque de crominancia, en donde el proceso de decisión comprende: determinar un primer parámetro de cuantificación de crominancia (QpCp) para el primer bloque de crominancia (901, 911, 921, 931, 941, 951, 961, 971) con base en un primer parámetro de cuantificación de luminancia (QpYP) de un primer bloque de luminancia (801) del primer bloque de imagen (601, 601') y una tabla de mapeo QP de crominancia para el primer bloque de crominancia; determinar un segundo parámetro de cuantificación de crominancia (QpCq) para el segundo bloque de crominancia (902, 912, 922, 932, 942, 952, 962, 972) con base en un segundo parámetro de cuantificación de luminancia (QpYQ) de un segundo bloque de luminancia (802) del segundo bloque de imagen (602, 602') y una tabla de mapeo QP de crominancia para el segundo bloque de crominancia; determinar un parámetro de cuantificación de crominancia promediado y redondeado (QpC) con base en el primer parámetro de cuantificación de crominancia (QpCp) y el segundo parámetro de cuantificación de crominancia (QpCq); y determinar un parámetro de umbral (tC) con base el parámetro de cuantificación de crominancia promediado y redondeado (QpC); y ejecutar un proceso de filtración para el borde de bloque de crominancia con base en el parámetro de umbral (tC).
MX2021008260A 2019-08-23 2020-08-24 Un codificador, un decodificador y metodos correspondientes para ejecutar desbloqueo de crominancia para bloques que utilizan codificacion de crominancia conjunta. MX2021008260A (es)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP2019072643 2019-08-23
RU2019000639 2019-09-16
EP2019077057 2019-10-07
PCT/CN2020/110914 WO2021037004A1 (en) 2019-08-23 2020-08-24 An encoder, a decoder and corresponding methods for performing chroma deblocking for blocks which use joint chroma coding

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MX2021008260A true MX2021008260A (es) 2021-08-16

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US (3) US11317091B2 (es)
EP (2) EP4344202A3 (es)
JP (2) JP7343596B6 (es)
KR (2) KR20240015149A (es)
CN (2) CN113810690B (es)
AU (2) AU2020335790B2 (es)
BR (1) BR112021010416A2 (es)
CA (1) CA3152228C (es)
IL (1) IL290832B1 (es)
MX (1) MX2021008260A (es)
PL (1) PL3868101T3 (es)
PT (1) PT3868101T (es)
WO (1) WO2021037004A1 (es)
ZA (1) ZA202203156B (es)

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EP3868101A4 (en) 2021-12-15
CN113810690A (zh) 2021-12-17
AU2020335790B2 (en) 2023-05-18
US20210266552A1 (en) 2021-08-26
PL3868101T3 (pl) 2024-07-01
US20220191496A1 (en) 2022-06-16
ZA202203156B (en) 2022-11-30
EP4344202A2 (en) 2024-03-27
US20240015290A1 (en) 2024-01-11
EP4344202A3 (en) 2024-06-19
EP3868101A1 (en) 2021-08-25
CN113711603A (zh) 2021-11-26
JP7343596B6 (ja) 2024-02-26
IL290832B1 (en) 2024-08-01
CA3152228A1 (en) 2021-03-04
BR112021010416A2 (pt) 2021-08-24
KR102628895B1 (ko) 2024-01-23
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PT3868101T (pt) 2024-06-18
AU2023216876A1 (en) 2023-09-07
CA3152228C (en) 2024-05-14
IL290832A (en) 2022-04-01
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