MX2020003873A - Codificacion y decodificacion de datos de imagen. - Google Patents

Codificacion y decodificacion de datos de imagen.

Info

Publication number
MX2020003873A
MX2020003873A MX2020003873A MX2020003873A MX2020003873A MX 2020003873 A MX2020003873 A MX 2020003873A MX 2020003873 A MX2020003873 A MX 2020003873A MX 2020003873 A MX2020003873 A MX 2020003873A MX 2020003873 A MX2020003873 A MX 2020003873A
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MX
Mexico
Prior art keywords
samples
reference samples
current
prediction
available
Prior art date
Application number
MX2020003873A
Other languages
English (en)
Inventor
Karl James Sharman
Stephen Mark Keating
Magali Kimlee Miri Philippe
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of MX2020003873A publication Critical patent/MX2020003873A/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
    • H04N19/134—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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame 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
    • H04N19/103—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
    • H04N19/103—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
    • H04N19/134—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
    • H04N19/134—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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or 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
    • H04N19/10—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
    • 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
    • H04N19/189—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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • H04N19/45—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder performing compensation of the inverse transform mismatch, e.g. Inverse Discrete Cosine Transform [IDCT] mismatch
    • 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
    • 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
    • H04N19/60—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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
    • 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
    • H04N19/156—Availability of hardware or computational resources, e.g. encoding based on power-saving criteria

Landscapes

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

Abstract

Un aparato de codificación de imagen, que comprende un selector configurado para seleccionar, de un conjunto de operaciones de predicción candidatas que definen al menos una dirección de predicción, una operación de predicción para la predicción de muestras de una región actual de una imagen actual, la región actual que comprende una matriz de dos o más filas y dos o más columnas de muestras. Una intra predictor configurado para derivar muestras predichas de la región actual con respecto a una o más de un grupo de muestras de referencia de la misma imagen en función de una dirección de predicción, definida por la operación de predicción seleccionada, entre una muestra actual predicho y una posición de referencia entre las muestras de referencia en el que, al menos para algunas de las operaciones de predicción candidatas, el grupo de muestras de referencia comprende dos o más series lineales paralelas de muestras de referencia dispuestas en diferentes separaciones respectivas de la región actual. Un detector configurado para detectar si las muestras correspondientes a cualquiera de los dos o más conjuntos lineales paralelos de muestras de referencia no están disponibles para su uso en la predicción de muestras de la región actual y, si alguno de los dos o más conjuntos lineales paralelos de muestras de referencia no están disponibles, para inhibir la selección, por el selector, de una operación de predicción candidata que depende de las muestras de referencia no disponibles<.
MX2020003873A 2017-10-27 2018-10-24 Codificacion y decodificacion de datos de imagen. MX2020003873A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB1717684.3A GB2567861A (en) 2017-10-27 2017-10-27 Image data encoding and decoding
GB1809024.1A GB2567913A (en) 2017-10-27 2018-06-01 Image data encoding and decoding
PCT/GB2018/053077 WO2019081927A1 (en) 2017-10-27 2018-10-24 CODING AND DECODING IMAGE DATA

Publications (1)

Publication Number Publication Date
MX2020003873A true MX2020003873A (es) 2020-08-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
MX2020003873A MX2020003873A (es) 2017-10-27 2018-10-24 Codificacion y decodificacion de datos de imagen.

Country Status (11)

Country Link
US (7) US10728556B2 (es)
EP (1) EP3701723A1 (es)
JP (2) JP2021500818A (es)
CN (1) CN111279704B (es)
AU (1) AU2018357062B2 (es)
BR (1) BR112020007835A2 (es)
CA (1) CA3080084A1 (es)
GB (3) GB2567861A (es)
MX (1) MX2020003873A (es)
RU (1) RU2020113977A (es)
WO (2) WO2019081929A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112204984A (zh) * 2018-06-27 2021-01-08 株式会社Kt 用于处理视频信号的方法和设备
GB2577336A (en) 2018-09-24 2020-03-25 Sony Corp Image data encoding and decoding
US11509919B2 (en) * 2018-10-17 2022-11-22 Tencent America Reference sample memory size restrictions for intra block copy
CN113068025B (zh) * 2018-12-25 2023-05-12 Oppo广东移动通信有限公司 解码预测方法、装置及计算机存储介质

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030202590A1 (en) * 2002-04-30 2003-10-30 Qunshan Gu Video encoding using direct mode predicted frames
US7440500B2 (en) * 2003-07-15 2008-10-21 Lsi Logic Corporation Supporting motion vectors outside picture boundaries in motion estimation process
JP5686499B2 (ja) * 2009-01-22 2015-03-18 株式会社Ｎｔｔドコモ 画像予測符号化装置、方法及びプログラム、画像予測復号装置、方法及びプログラム、並びに、符号化・復号システム及び方法
JP2012191295A (ja) * 2011-03-09 2012-10-04 Canon Inc 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
US20120236936A1 (en) * 2011-03-14 2012-09-20 Segall Christopher A Video coding based on edge determination
KR101383775B1 (ko) 2011-05-20 2014-04-14 주식회사 케이티 화면 내 예측 방법 및 장치
US9077578B1 (en) * 2011-06-06 2015-07-07 Vuemix, Inc. Scalable real-time video compositing systems and methods
KR20130049525A (ko) 2011-11-04 2013-05-14 오수미 잔차 블록 복원을 위한 역변환 방법
US9237344B2 (en) 2012-03-22 2016-01-12 Qualcomm Incorporated Deriving context for last position coding for video coding
US9247251B1 (en) * 2013-07-26 2016-01-26 Google Inc. Right-edge extension for quad-tree intra-prediction
GB2521828A (en) * 2013-12-23 2015-07-08 Sony Corp Data encoding and decoding
EP3198867A4 (en) 2014-10-31 2018-04-04 MediaTek Inc. Method of improved directional intra prediction for video coding
WO2016119048A1 (en) * 2015-01-29 2016-08-04 École De Technologie Supérieure Method and apparatus for video intermodal transcoding
EP4221202A1 (en) * 2015-06-05 2023-08-02 Dolby Laboratories Licensing Corporation Image encoding and decoding method and image decoding device
CA2997193C (en) * 2015-09-03 2021-04-06 Mediatek Inc. Method and apparatus of neural network based processing in video coding
EP3148190A1 (en) * 2015-09-25 2017-03-29 Thomson Licensing Method and apparatus for intra prediction in video encoding and decoding
US10659812B2 (en) * 2015-11-24 2020-05-19 Samsung Electronics Co., Ltd. Method and device for video decoding and method and device for video encoding
KR20180086203A (ko) * 2015-12-17 2018-07-30 삼성전자주식회사 영상을 부호화/복호화 하는 방법 및 그 장치
US10390021B2 (en) * 2016-03-18 2019-08-20 Mediatek Inc. Method and apparatus of video coding
US11259047B2 (en) 2016-04-06 2022-02-22 Kt Corporation Method and apparatus for processing video signal
CN109076241B (zh) * 2016-05-04 2023-06-23 微软技术许可有限责任公司 利用样本值的非相邻参考线进行帧内图片预测
CA3025488A1 (en) * 2016-05-25 2017-11-30 Arris Enterprises Llc Weighted angular prediction for intra coding
US10230961B2 (en) * 2016-06-03 2019-03-12 Mediatek Inc. Method and apparatus for template-based intra prediction in image and video coding
ES2724568B2 (es) * 2016-06-24 2021-05-19 Kt Corp Método y aparato para tratar una señal de vídeo
WO2018026166A1 (ko) * 2016-08-01 2018-02-08 한국전자통신연구원 영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 기록 매체
JP7356347B2 (ja) * 2016-10-04 2023-10-04 エルエックス セミコン カンパニー， リミティド 画像復号方法、画像符号化方法、及び記録媒体
US10880570B2 (en) 2016-10-05 2020-12-29 Qualcomm Incorporated Systems and methods of adaptively determining template size for illumination compensation
CN111434109A (zh) * 2017-11-28 2020-07-17 韩国电子通信研究院 图像编码/解码方法和装置以及存储有比特流的记录介质

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Publication number Publication date
GB201809024D0 (en) 2018-07-18
JP2021500818A (ja) 2021-01-07
AU2018357062B2 (en) 2023-02-23
GB201717684D0 (en) 2017-12-13
RU2020113977A3 (es) 2022-02-15
JP2023166555A (ja) 2023-11-21
WO2019081929A1 (en) 2019-05-02
US20230171413A1 (en) 2023-06-01
BR112020007835A2 (pt) 2020-10-13
CN111279704B (zh) 2023-06-30
WO2019081927A1 (en) 2019-05-02
CA3080084A1 (en) 2019-05-02
US20190132596A1 (en) 2019-05-02
US11159803B2 (en) 2021-10-26
AU2018357062A1 (en) 2020-04-02
US11330275B2 (en) 2022-05-10
GB2567918A (en) 2019-05-01
US20230083246A1 (en) 2023-03-16
RU2020113977A (ru) 2021-10-20
EP3701723A1 (en) 2020-09-02
US20200252606A1 (en) 2020-08-06
US20200344484A1 (en) 2020-10-29
GB201812556D0 (en) 2018-09-12
US20210360261A1 (en) 2021-11-18
GB2567861A (en) 2019-05-01
CN111279704A (zh) 2020-06-12
US20200267410A1 (en) 2020-08-20
US11949882B2 (en) 2024-04-02
US11523121B2 (en) 2022-12-06
GB2567913A (en) 2019-05-01
US10728556B2 (en) 2020-07-28

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