AR106115A1 - Determinación de valores de parámetros de cuantificación - Google Patents

Determinación de valores de parámetros de cuantificación

Info

Publication number
AR106115A1
AR106115A1 ARP160102896A ARP160102896A AR106115A1 AR 106115 A1 AR106115 A1 AR 106115A1 AR P160102896 A ARP160102896 A AR P160102896A AR P160102896 A ARP160102896 A AR P160102896A AR 106115 A1 AR106115 A1 AR 106115A1
Authority
AR
Argentina
Prior art keywords
value
chroma
determination
parameter values
depends
Prior art date
Application number
ARP160102896A
Other languages
English (en)
Inventor
Strm Jacob
Samuelson Jonatan
Petterson Martin
Hermansson Per
Andersson Kenneth
Original Assignee
ERICSSON TELEFON AB L M (publ)
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 ERICSSON TELEFON AB L M (publ) filed Critical ERICSSON TELEFON AB L M (publ)
Publication of AR106115A1 publication Critical patent/AR106115A1/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
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/64—Systems for the transmission or the storage of the colour picture signal; Details therefor, e.g. coding or decoding means therefor
    • 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
    • H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
    • 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
    • H04N19/169—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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • 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
    • 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

Landscapes

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

Abstract

Se calcula un valor de desplazamiento QP correspondiente a un componente croma de un píxel en una imagen de una secuencia de vídeo en base a un valor QP de referencia y un factor que depende de una diferencia entre un espacio de color de captura de píxel y un espacio de color codificado para el mismo. Se calcula después un valor QP para el componente croma en base al valor QP de referencia reducido por el valor de desplazamiento QP. El cálculo de valores QP para componentes croma en base al factor que depende de la diferencia entre los espacios de color de captura y codificado mejora la calidad croma de un modo eficiente en particular para vídeo HDR y WCG.
ARP160102896A 2015-09-23 2016-09-22 Determinación de valores de parámetros de cuantificación AR106115A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201562222399P 2015-09-23 2015-09-23

Publications (1)

Publication Number Publication Date
AR106115A1 true AR106115A1 (es) 2017-12-13

Family

ID=58386773

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP160102896A AR106115A1 (es) 2015-09-23 2016-09-22 Determinación de valores de parámetros de cuantificación

Country Status (6)

Country Link
US (1) US10623740B2 (es)
EP (1) EP3354019A4 (es)
JP (1) JP6651005B2 (es)
AR (1) AR106115A1 (es)
WO (1) WO2017052440A1 (es)
ZA (1) ZA201801999B (es)

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EP3763063B1 (en) * 2018-03-08 2021-12-15 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for handling antenna signals for transmission between a base unit and a remote unit of a base station system
PL3941052T3 (pl) * 2018-04-01 2024-03-04 Lg Electronics Inc. Urządzenie do kodowania obrazu oraz jego sposób oparty na wyprowadzeniu parametru kwantyzacji
US11259023B2 (en) * 2018-04-12 2022-02-22 Qualcomm Incorporated Harmonization of transform-based quantization and dynamic range adjustment scale derivation in video coding
US11632151B2 (en) * 2018-06-20 2023-04-18 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for massive MU-MIMO
EP3595308A1 (en) * 2018-07-12 2020-01-15 THOMSON Licensing Method and apparatus for encoding an image
CN112771865A (zh) * 2018-08-23 2021-05-07 交互数字Vc控股法国公司 使用参数化模型对量化矩阵进行编解码
WO2020192633A1 (en) * 2019-03-25 2020-10-01 Mediatek Inc. Method and apparatus of the quantization matrix computation and representation for video coding
AU2020283560B2 (en) 2019-05-28 2021-12-23 Dolby Laboratories Licensing Corporation Quantization parameter signaling
CN114375582A (zh) 2019-06-24 2022-04-19 阿里巴巴集团控股有限公司 处理亮度和色度信号的方法和系统
WO2021051047A1 (en) * 2019-09-14 2021-03-18 Bytedance Inc. Chroma quantization parameter in video coding
JP7358135B2 (ja) * 2019-09-17 2023-10-10 キヤノン株式会社 画像符号化装置、画像符号化方法、及びプログラム、画像復号装置、画像復号方法、及びプログラム
WO2021072177A1 (en) 2019-10-09 2021-04-15 Bytedance Inc. Cross-component adaptive loop filtering in video coding
WO2021076475A1 (en) * 2019-10-14 2021-04-22 Bytedance Inc. Joint coding of chroma residual and filtering in video processing
CA3162583C (en) * 2019-11-22 2024-02-13 Lg Electronics Inc. Image encoding/decoding method and device using lossless color transform, and method for transmitting bitstream
JP7508558B2 (ja) 2019-12-09 2024-07-01 バイトダンス インコーポレイテッド ビデオコーディングにおける量子化グループの使用
US11470353B2 (en) * 2019-12-20 2022-10-11 Qualcomm Incorporated Low-frequency non-separable transform (LFNST) with reduced zero-out in video coding
CN114902657A (zh) 2019-12-31 2022-08-12 字节跳动有限公司 视频编解码中的自适应颜色变换
US11082473B1 (en) * 2020-03-15 2021-08-03 Tfi Digital Media Limited Method for complexity reduction in video coding by coding parameters reuse
CN114051140B (zh) * 2022-01-07 2022-04-08 腾讯科技（深圳）有限公司 视频编码方法、装置、计算机设备及存储介质

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Publication number Priority date Publication date Assignee Title
EP2789165A4 (en) * 2012-01-20 2015-08-05 Sony Corp EXPANSION OF CHROMISTRATION PARAMETERS
JP2015173312A (ja) * 2014-03-11 2015-10-01 ソニー株式会社 画像符号化装置および方法、並びに画像復号装置および方法
US10271052B2 (en) 2014-03-14 2019-04-23 Qualcomm Incorporated Universal color-space inverse transform coding

Also Published As

Publication number Publication date
US20180278934A1 (en) 2018-09-27
US10623740B2 (en) 2020-04-14
EP3354019A4 (en) 2019-05-22
WO2017052440A1 (en) 2017-03-30
ZA201801999B (en) 2019-07-31
EP3354019A1 (en) 2018-08-01
JP2018533867A (ja) 2018-11-15
JP6651005B2 (ja) 2020-02-19

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