MX2022008502A - Metodo de decodificacion de video y aparato para obtener el parametro de cuantizacion, y metodo de codificacion de video y aparato para transmitir el parametro de cuantizacion. - Google Patents

Metodo de decodificacion de video y aparato para obtener el parametro de cuantizacion, y metodo de codificacion de video y aparato para transmitir el parametro de cuantizacion.

Info

Publication number
MX2022008502A
MX2022008502A MX2022008502A MX2022008502A MX2022008502A MX 2022008502 A MX2022008502 A MX 2022008502A MX 2022008502 A MX2022008502 A MX 2022008502A MX 2022008502 A MX2022008502 A MX 2022008502A MX 2022008502 A MX2022008502 A MX 2022008502A
Authority
MX
Mexico
Prior art keywords
quantization parameter
obtaining
picture
difference value
decoding method
Prior art date
Application number
MX2022008502A
Other languages
English (en)
Inventor
Minwoo Park
Yumi Sohn
Kiho Choi
Minsoo Park
Yinji Piao
Chanyul KIM
Original Assignee
Samsung Electronics 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=76788193&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MX2022008502(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of MX2022008502A publication Critical patent/MX2022008502A/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
    • H04N19/102—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
    • H04N19/169—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
    • H04N19/172—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 picture, frame or field
    • 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
    • H04N19/174—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 slice, e.g. a line of blocks or a group of 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
    • H04N19/10—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
    • H04N19/18—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 set of transform coefficients
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform 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
    • H04N19/70—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

Landscapes

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

Abstract

Se proporciona un método de decodificación de vídeo que incluye: obtener, a partir de un conjunto de parámetros de imagen, un valor inicial del parámetro de cuantización (QP) que se aplicará a una imagen actual, e información del valor de diferencia QP del encabezado de la imagen; cuando la información del valor de diferencia QP del encabezado de la imagen indica que la información del valor de diferencia QP está presente en un encabezado de la imagen de la imagen actual, obtener un primer valor de diferencia QP para la imagen actual a partir del encabezado de la imagen; determinar un QP para una unidad de codificación incluida en la imagen actual, usando el valor inicial del QP y el primer valor de diferencia del QP; obtener coeficientes de transformación de la unidad de codificación realizando una cuantización inversa en la unidad de codificación usando el QP; y reconstruir la unidad de codificación usando los coeficientes de transformación.
MX2022008502A 2020-01-10 2021-01-08 Metodo de decodificacion de video y aparato para obtener el parametro de cuantizacion, y metodo de codificacion de video y aparato para transmitir el parametro de cuantizacion. MX2022008502A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202062959452P 2020-01-10 2020-01-10
PCT/KR2021/000275 WO2021141451A1 (ko) 2020-01-10 2021-01-08 양자화 파라미터를 획득하기 위한 비디오 복호화 방법 및 장치, 양자화 파라미터를 전송하기 위한 비디오 부호화 방법 및 장치

Publications (1)

Publication Number Publication Date
MX2022008502A true MX2022008502A (es) 2022-08-08

Family

ID=76788193

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2022008502A MX2022008502A (es) 2020-01-10 2021-01-08 Metodo de decodificacion de video y aparato para obtener el parametro de cuantizacion, y metodo de codificacion de video y aparato para transmitir el parametro de cuantizacion.

Country Status (11)

Country Link
US (1) US20220368909A1 (es)
EP (1) EP4090020A4 (es)
JP (1) JP2023510535A (es)
KR (3) KR102304703B1 (es)
CN (1) CN115280773A (es)
AU (1) AU2021206074A1 (es)
BR (1) BR112022013662A2 (es)
CA (1) CA3164388A1 (es)
IL (1) IL294576A (es)
MX (1) MX2022008502A (es)
WO (1) WO2021141451A1 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4088456A4 (en) 2020-02-05 2023-06-21 Beijing Bytedance Network Technology Co., Ltd. PALETTE MODE FOR A LOCAL DUAL TREE
CN115152221A (zh) * 2020-02-05 2022-10-04 抖音视界有限公司 用于色度分量的去方块参数
JP2023520040A (ja) * 2020-04-02 2023-05-15 エルジー エレクトロニクス インコーポレイティド ビデオまたは映像コーディングシステムにおける白黒映像に関するクロマデブロッキングパラメータ情報に基づく映像コーディング方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX353742B (es) * 2012-01-30 2018-01-26 Samsung Electronics Co Ltd Método y aparato de codificación y decodificación de video de base de unidad de datos jerárquica que comprende la predicción del parámetro de cuantificación.
US9521410B2 (en) * 2012-04-26 2016-12-13 Qualcomm Incorporated Quantization parameter (QP) coding in video coding
KR102242675B1 (ko) * 2017-11-13 2021-04-22 한국전자통신연구원 양자화 방법 및 장치
KR102390733B1 (ko) * 2018-06-11 2022-04-25 한화테크윈 주식회사 양자화 파라미터 기반의 잔차 블록 부호화/복호화 방법 및 장치

Also Published As

Publication number Publication date
CA3164388A1 (en) 2021-07-15
BR112022013662A2 (pt) 2022-09-13
EP4090020A4 (en) 2024-01-17
JP2023510535A (ja) 2023-03-14
KR20210090559A (ko) 2021-07-20
EP4090020A1 (en) 2022-11-16
WO2021141451A1 (ko) 2021-07-15
US20220368909A1 (en) 2022-11-17
CN115280773A (zh) 2022-11-01
KR20210118377A (ko) 2021-09-30
KR102657549B1 (ko) 2024-04-15
KR102304703B1 (ko) 2021-09-28
AU2021206074A1 (en) 2022-08-18
KR20240052922A (ko) 2024-04-23
KR102304703B9 (ko) 2022-05-02
IL294576A (en) 2022-09-01

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