MX2022008238A - Determinación de componentes cruzados de las componentes croma y luma de datos de video. - Google Patents

Determinación de componentes cruzados de las componentes croma y luma de datos de video.

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Publication number
MX2022008238A
MX2022008238A MX2022008238A MX2022008238A MX2022008238A MX 2022008238 A MX2022008238 A MX 2022008238A MX 2022008238 A MX2022008238 A MX 2022008238A MX 2022008238 A MX2022008238 A MX 2022008238A MX 2022008238 A MX2022008238 A MX 2022008238A
Authority
MX
Mexico
Prior art keywords
boundary
luma
coding block
video data
chroma
Prior art date
Application number
MX2022008238A
Other languages
English (en)
Inventor
Xiaoyu Xiu
Yi- Wen Chen
Xianglin Wang
Hong- Jheng Jhu
Tsung- Chuan MA
Bing Yu
Original Assignee
Beijing Dajia Internet Information 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 Beijing Dajia Internet Information Tech Co Ltd filed Critical Beijing Dajia Internet Information Tech Co Ltd
Publication of MX2022008238A publication Critical patent/MX2022008238A/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
    • H04N19/169—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
    • H04N19/102—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
    • H04N19/85—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
    • H04N19/10—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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding 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
    • H04N19/134—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
    • H04N19/167—Position within a video image, e.g. region of interest [ROI]
    • 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
    • H04N19/17—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
    • H04N19/189—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
    • H04N19/197—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 including determination of the initial value of an encoding parameter
    • 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
    • H04N19/59—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution
    • 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

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

Abstract

Esta solicitud está dirigida a la decodificación de datos de video que incluyen una pluralidad de componentes luma de una pluralidad de píxeles en una trama de video; la pluralidad de píxeles pertenece a un bloque de codificación, e incluye un píxel límite que está dentro del bloque de codificación, en donde el pixel límite está inmediatamente adyacente a un límite del bloque de codificación; uno o más píxeles vecinos del píxel límite están fuera del bloque de codificación y se determina que no están disponibles; una componente luma que corresponde al píxel límite se asigna a un respectivo componente luma que corresponde a cada uno de los uno o más píxeles vecinos; una componente luma límite se determina con base, por lo menos, en las componentes luma de los uno o más píxeles vecinos y el píxel límite de conformidad con un esquema de interpolación de luma predefinido; una componente croma límite se convierte a partir de la componente luma límite de conformidad con un modelo de correlación lineal.
MX2022008238A 2019-12-30 2020-12-29 Determinación de componentes cruzados de las componentes croma y luma de datos de video. MX2022008238A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962955348P 2019-12-30 2019-12-30
PCT/US2020/067356 WO2021138354A1 (en) 2019-12-30 2020-12-29 Cross component determination of chroma and luma components of video data

Publications (1)

Publication Number Publication Date
MX2022008238A true MX2022008238A (es) 2022-10-07

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US (1) US20220337847A1 (es)
EP (1) EP4085631A4 (es)
JP (2) JP2022553444A (es)
KR (2) KR102558336B1 (es)
CN (1) CN115104311A (es)
MX (1) MX2022008238A (es)
WO (1) WO2021138354A1 (es)

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* Cited by examiner, † Cited by third party
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WO2021209065A1 (en) 2020-04-18 2021-10-21 Beijing Bytedance Network Technology Co., Ltd. Use restrictions for cross-component prediction
WO2023141245A1 (en) * 2022-01-24 2023-07-27 Beijing Dajia Internet Information Technology Co., Ltd. Method and apparatus for cross-component prediction for video coding
WO2023183510A1 (en) * 2022-03-23 2023-09-28 Beijing Dajia Internet Information Technology Co., Ltd. Method and apparatus for cross-component prediction for video coding
US20230336748A1 (en) * 2022-04-19 2023-10-19 Tencent America LLC Chroma from luma prediction using mapping and different types
WO2024026098A1 (en) * 2022-07-28 2024-02-01 Beijing Dajia Internet Information Technology Co., Ltd Method and apparatus for cross-component prediction for video coding

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CA2840488A1 (en) * 2011-06-28 2013-01-03 Samsung Electronics Co., Ltd. Prediction method and apparatus for chroma component of image using luma component of image
KR101956284B1 (ko) * 2011-06-30 2019-03-08 엘지전자 주식회사 보간 방법 및 이를 이용한 예측 방법
GB2501535A (en) * 2012-04-26 2013-10-30 Sony Corp Chrominance Processing in High Efficiency Video Codecs
CN107211121B (zh) * 2015-01-22 2020-10-23 联发科技（新加坡）私人有限公司 视频编码方法与视频解码方法
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KR102432085B1 (ko) * 2015-09-23 2022-08-11 노키아 테크놀로지스 오와이 360도 파노라마 비디오를 코딩하는 방법, 장치 및 컴퓨터 프로그램 제품
US20170099490A1 (en) * 2015-10-02 2017-04-06 Qualcomm Incorporated Constrained intra-prediction for block copy mode
WO2018012808A1 (ko) * 2016-07-14 2018-01-18 삼성전자 주식회사 크로마 인트라 예측 방법 및 그 장치
US10477240B2 (en) * 2016-12-19 2019-11-12 Qualcomm Incorporated Linear model prediction mode with sample accessing for video coding
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KR20210125086A (ko) * 2019-02-22 2021-10-15 후아웨이 테크놀러지 컴퍼니 리미티드 선형 모델을 사용한 인트라 예측을 위한 방법 및 장치

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EP4085631A4 (en) 2023-03-22
WO2021138354A1 (en) 2021-07-08
JP2023113871A (ja) 2023-08-16
JP2022553444A (ja) 2022-12-22
US20220337847A1 (en) 2022-10-20
CN115104311A (zh) 2022-09-23
EP4085631A1 (en) 2022-11-09
KR20220112859A (ko) 2022-08-11
KR20230107417A (ko) 2023-07-14
KR102558336B1 (ko) 2023-07-20

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