CL2021002220A1 - Método y aparato para predicción intra usando un modelo lineal - Google Patents

Método y aparato para predicción intra usando un modelo lineal

Info

Publication number
CL2021002220A1
CL2021002220A1 CL2021002220A CL2021002220A CL2021002220A1 CL 2021002220 A1 CL2021002220 A1 CL 2021002220A1 CL 2021002220 A CL2021002220 A CL 2021002220A CL 2021002220 A CL2021002220 A CL 2021002220A CL 2021002220 A1 CL2021002220 A1 CL 2021002220A1
Authority
CL
Chile
Prior art keywords
intra prediction
cross
prediction
linear model
formats
Prior art date
Application number
CL2021002220A
Other languages
English (en)
Inventor
Jianle Chen
Alexey Konstantinovich Filippov
Vasily Alexeevich Rufitskiy
Original Assignee
Huawei Tech 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
Application filed by Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of CL2021002220A1 publication Critical patent/CL2021002220A1/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
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/11—Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
    • 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
    • H04N19/102—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
    • H04N19/102—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
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • 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
    • 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
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
    • 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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • H04N19/82—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop

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

The present invention relates to the field of picture processing. Especially, the invention deals with improving intra prediction (such as the chrome intra prediction) using cross component linear modeling (CCLM) and more particularly to spatial filtering used in cross-component linear model for intra prediction with different chrome formats. An apparatus, an encoder, a decoder and corresponding methods for cross-component prediction for a picture, in which the set of down-sampling filters applied during the prediction depends on a chroma format, that may be one of multiple supported chroma formats are provided, so as to improve coding efficiency.
CL2021002220A 2019-02-22 2021-08-20 Método y aparato para predicción intra usando un modelo lineal CL2021002220A1 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962809555P 2019-02-22 2019-02-22
US201962825796P 2019-03-28 2019-03-28
US201962825021P 2019-03-28 2019-03-28

Publications (1)

Publication Number Publication Date
CL2021002220A1 true CL2021002220A1 (es) 2022-05-06

Family

ID=72143758

Family Applications (1)

Application Number Title Priority Date Filing Date
CL2021002220A CL2021002220A1 (es) 2019-02-22 2021-08-20 Método y aparato para predicción intra usando un modelo lineal

Country Status (12)

Country Link
US (1) US20210385440A1 (es)
EP (1) EP3928517A4 (es)
JP (1) JP2022521757A (es)
KR (1) KR20210125086A (es)
CN (7) CN117278744A (es)
AU (1) AU2020226573A1 (es)
BR (1) BR112021016560A2 (es)
CA (1) CA3131027A1 (es)
CL (1) CL2021002220A1 (es)
MX (1) MX2021010130A (es)
WO (1) WO2020169113A1 (es)
ZA (1) ZA202106297B (es)

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* Cited by examiner, † Cited by third party
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MX2022008238A (es) * 2019-12-30 2022-10-07 Beijing Dajia Internet Information Tech Co Ltd Determinación de componentes cruzados de las componentes croma y luma de datos de video.
KR20230002433A (ko) * 2020-04-18 2023-01-05 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 교차 성분 비디오 코딩 시그널링 신택스
WO2023132508A1 (ko) * 2022-01-04 2023-07-13 현대자동차주식회사 크로마 성분을 위한 템플릿 기반 인트라 모드 유도를 위한 방법
WO2023197192A1 (zh) * 2022-04-12 2023-10-19 Oppo广东移动通信有限公司 编解码方法、装置、编码设备、解码设备以及存储介质
EP4262206A1 (en) * 2022-04-14 2023-10-18 FG Innovation Company Limited Method for determining specific linear model and video processing device
WO2024005545A1 (ko) * 2022-06-29 2024-01-04 엘지전자 주식회사 영상 인코딩/디코딩 방법 및 장치, 그리고 비트스트림을 저장한 기록 매체
WO2024010359A1 (ko) * 2022-07-05 2024-01-11 엘지전자 주식회사 영상 인코딩/디코딩 방법 및 장치, 그리고 비트스트림을 저장한 기록 매체

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US8023569B2 (en) * 2005-12-15 2011-09-20 Sharp Laboratories Of America, Inc. Methods and systems for block-based residual upsampling
WO2012164939A1 (ja) * 2011-06-03 2012-12-06 パナソニック株式会社 画像符号化方法および画像復号化方法
GB2492130A (en) 2011-06-22 2012-12-26 Canon Kk Processing Colour Information in an Image Comprising Colour Component Sample Prediction Being Based on Colour Sampling Format
JP5890520B2 (ja) * 2011-06-28 2016-03-22 サムスン エレクトロニクス カンパニー リミテッド 画像の輝度成分を用いて画像の色差成分を予測する方法及び予測装置
WO2013006986A1 (en) * 2011-07-12 2013-01-17 Intel Corporation Luma-based chroma intra prediction
CN103369315B (zh) * 2012-04-06 2016-08-24 华为技术有限公司 色度分量的帧内预测模式的编码、解码方法、设备及系统
US10455249B2 (en) * 2015-03-20 2019-10-22 Qualcomm Incorporated Downsampling process for linear model prediction mode
JP2018056685A (ja) * 2016-09-27 2018-04-05 株式会社ドワンゴ 画像符号化装置、画像符号化方法、及び画像符号化プログラム、並びに、画像復号装置、画像復号方法、及び画像復号プログラム
US11025903B2 (en) * 2017-01-13 2021-06-01 Qualcomm Incorporated Coding video data using derived chroma mode
CN117354499A (zh) * 2017-07-06 2024-01-05 Lx 半导体科技有限公司 图像编码/解码方法、发送方法和数字存储介质
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Also Published As

Publication number Publication date
EP3928517A1 (en) 2021-12-29
BR112021016560A2 (pt) 2021-10-26
AU2020226573A1 (en) 2021-09-30
CN117278744A (zh) 2023-12-22
EP3928517A4 (en) 2022-04-27
US20210385440A1 (en) 2021-12-09
MX2021010130A (es) 2021-11-12
WO2020169113A1 (en) 2020-08-27
CN113545063A (zh) 2021-10-22
CN116437077A (zh) 2023-07-14
ZA202106297B (en) 2022-09-28
CN117041552A (zh) 2023-11-10
KR20210125086A (ko) 2021-10-15
CN116405668A (zh) 2023-07-07
CN116506599A (zh) 2023-07-28
JP2022521757A (ja) 2022-04-12
CN113545063B (zh) 2023-04-28
CA3131027A1 (en) 2020-08-27
CN116418981A (zh) 2023-07-11

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