CL2021000492A1 - Método y aparato para intrapredicción - Google Patents
Método y aparato para intrapredicciónInfo
- Publication number
- CL2021000492A1 CL2021000492A1 CL2021000492A CL2021000492A CL2021000492A1 CL 2021000492 A1 CL2021000492 A1 CL 2021000492A1 CL 2021000492 A CL2021000492 A CL 2021000492A CL 2021000492 A CL2021000492 A CL 2021000492A CL 2021000492 A1 CL2021000492 A1 CL 2021000492A1
- Authority
- CL
- Chile
- Prior art keywords
- block
- prediction mode
- available
- current coding
- mpm list
- Prior art date
Links
Classifications
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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
- H04N19/102—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
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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
- H04N19/102—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
- H04N19/127—Prioritisation of hardware or computational resources
-
- 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
- H04N19/169—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
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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
- H04N19/1883—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 relating to sub-band structure, e.g. hierarchical level, directional tree, e.g. low-high [LH], high-low [HL], high-high [HH]
-
- 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
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)
- Compression Of Band Width Or Redundancy In Fax (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Se proporciona un método para construir una lista de modos más probables, MPM, para proceso de predicción correspondiente al bloque de video. El método incluye determinar si un bloque izquierdo de un bloque de codificación actual está disponible o no, si el bloque izquierdo del bloque de codificación actual está disponible, añadir un modo de intrapredicción del bloque izquierdo a una lista MPM; determinar si un bloque por encima del bloque de codificación actual está disponible o no, si el bloque por encima del bloque de codificación actual está disponible, añadir un modo de intrapredicción del bloque anterior a la lista MPM; añadir un desplazamiento al modo de predicción del bloque izquierdo para obtener un nuevo modo de predicción, si el bloque izquierdo del bloque de codificación actual está disponible y el modo de intrapredicción del bloque izquierdo es un modo angular; y añadir el nuevo modo de predicción a la lista MPM, si el nuevo modo de predicción no está en la lista MPM; o añadir un desplazamiento al modo de predicción del bloque por encima para obtener un modo de predicción de desplazamiento por encima, si el bloque por encima del bloque de codificación actual está disponible y el modo de intrapredicción del bloque por encima es un modo angular; y añadir el modo de predicción de desplazamiento por encima a la lista MPM, si el modo de predicción de desplazamiento por encima no está en la lista MPM. La lista MPM se utiliza para obtener un valor de índice correspondiente a un modo de predicción de un bloque de imagen, para mejorar la eficiencia de codificación.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201862723299P | 2018-08-27 | 2018-08-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
CL2021000492A1 true CL2021000492A1 (es) | 2021-07-02 |
Family
ID=69645012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CL2021000492A CL2021000492A1 (es) | 2018-08-27 | 2021-02-26 | Método y aparato para intrapredicción |
Country Status (10)
Country | Link |
---|---|
US (1) | US11044469B2 (es) |
EP (1) | EP3815372A4 (es) |
JP (1) | JP2021535679A (es) |
KR (2) | KR20210027486A (es) |
CN (1) | CN112385227A (es) |
AU (3) | AU2019330406B2 (es) |
BR (1) | BR112021003679A2 (es) |
CA (1) | CA3106487A1 (es) |
CL (1) | CL2021000492A1 (es) |
WO (1) | WO2020042916A1 (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11616949B2 (en) * | 2018-08-31 | 2023-03-28 | Hfi Innovation Inc. | Method and apparatus of intra prediction with MPM generation in image and video processing |
US11509891B2 (en) * | 2018-11-04 | 2022-11-22 | Lg Electronics Inc. | Intra prediction method and apparatus in image coding system |
KR20210090709A (ko) * | 2019-01-08 | 2021-07-20 | 엘지전자 주식회사 | Mpm 리스트를 사용하는 인트라 예측 기반 영상 코딩 방법 및 장치 |
EP4128791A4 (en) * | 2020-04-02 | 2023-07-19 | Telefonaktiebolaget LM ERICSSON (PUBL) | DECODING BASED ON A BIDIRECTIONAL IMAGE STATE |
CN118044187A (zh) * | 2021-09-29 | 2024-05-14 | 北京达佳互联信息技术有限公司 | 用于解码器侧帧内模式推导的方法和设备 |
WO2023198112A1 (en) * | 2022-04-15 | 2023-10-19 | Mediatek Inc. | Method and apparatus of improvement for decoder-derived intra prediction in video coding system |
CN117956164A (zh) * | 2022-10-21 | 2024-04-30 | 腾讯科技(深圳)有限公司 | 视频编解码方法、装置、计算机可读介质及电子设备 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9363511B2 (en) * | 2011-09-13 | 2016-06-07 | Mediatek Singapore Pte. Ltd. | Method and apparatus for Intra mode coding in HEVC |
US9462290B2 (en) * | 2011-10-07 | 2016-10-04 | Pantech Co., Ltd. | Methods and apparatuses of encoding/decoding intra prediction mode using candidate intra prediction modes |
KR20130049522A (ko) * | 2011-11-04 | 2013-05-14 | 오수미 | 인트라 예측 블록 생성 방법 |
US9628789B2 (en) * | 2011-11-18 | 2017-04-18 | Qualcomm Incorporated | Reference mode selection in intra mode coding |
CN108174206A (zh) * | 2011-12-05 | 2018-06-15 | Lg 电子株式会社 | 帧内预测的方法和设备 |
US9491458B2 (en) * | 2012-04-12 | 2016-11-08 | Qualcomm Incorporated | Scalable video coding prediction with non-causal information |
WO2014072571A1 (en) * | 2012-10-01 | 2014-05-15 | Nokia Corporation | Method and apparatus for scalable video coding |
CN110708544B (zh) * | 2013-12-19 | 2022-07-05 | 三星电子株式会社 | 视频编码方法和设备以及视频解码方法和设备 |
CN104883565A (zh) * | 2014-12-31 | 2015-09-02 | 乐视网信息技术(北京)股份有限公司 | 一种高效视频编码的帧内预测模式决策方法及装置 |
GB2534606A (en) * | 2015-01-29 | 2016-08-03 | Canon Kk | Method and device for encoding or decoding an image comprising encoding of decoding information representing prediction modes |
CN115134595A (zh) * | 2015-06-05 | 2022-09-30 | 杜比实验室特许公司 | 用于执行帧间预测的图像编解码方法、比特流存储方法 |
WO2017204427A1 (ko) * | 2016-05-23 | 2017-11-30 | 가온미디어 주식회사 | 영상 처리 방법, 그를 이용한 영상 복호화 및 부호화 방법 |
US10326986B2 (en) * | 2016-08-15 | 2019-06-18 | Qualcomm Incorporated | Intra video coding using a decoupled tree structure |
US10368107B2 (en) * | 2016-08-15 | 2019-07-30 | Qualcomm Incorporated | Intra video coding using a decoupled tree structure |
US10506228B2 (en) * | 2016-10-04 | 2019-12-10 | Qualcomm Incorporated | Variable number of intra modes for video coding |
EP3577898A4 (en) * | 2017-01-31 | 2020-06-24 | Sharp Kabushiki Kaisha | SYSTEMS AND METHODS FOR PARTITIONING A VIDEO BLOCK IMAGE FOR VIDEO CODING |
US11032551B2 (en) * | 2018-12-04 | 2021-06-08 | Tencent America LLC | Simplified most probable mode list generation scheme |
US11683501B2 (en) * | 2019-01-17 | 2023-06-20 | Tencent America LLC | Method and apparatus for video coding |
-
2019
- 2019-08-15 KR KR1020217004301A patent/KR20210027486A/ko active Application Filing
- 2019-08-15 KR KR1020237038286A patent/KR20230156813A/ko active Search and Examination
- 2019-08-15 EP EP19856304.1A patent/EP3815372A4/en active Pending
- 2019-08-15 AU AU2019330406A patent/AU2019330406B2/en active Active
- 2019-08-15 CN CN201980045767.7A patent/CN112385227A/zh active Pending
- 2019-08-15 JP JP2021510857A patent/JP2021535679A/ja active Pending
- 2019-08-15 CA CA3106487A patent/CA3106487A1/en active Pending
- 2019-08-15 BR BR112021003679-2A patent/BR112021003679A2/pt unknown
- 2019-08-15 WO PCT/CN2019/100815 patent/WO2020042916A1/en unknown
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2020
- 2020-08-19 US US16/947,840 patent/US11044469B2/en active Active
-
2021
- 2021-02-26 CL CL2021000492A patent/CL2021000492A1/es unknown
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2023
- 2023-05-02 AU AU2023202684A patent/AU2023202684B2/en active Active
- 2023-05-02 AU AU2023202685A patent/AU2023202685B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
AU2023202684A1 (en) | 2023-05-18 |
EP3815372A1 (en) | 2021-05-05 |
AU2023202685B2 (en) | 2023-09-14 |
AU2023202684B2 (en) | 2024-04-04 |
BR112021003679A2 (pt) | 2021-05-18 |
EP3815372A4 (en) | 2021-05-05 |
JP2021535679A (ja) | 2021-12-16 |
AU2023202685A1 (en) | 2023-05-18 |
US20200382768A1 (en) | 2020-12-03 |
WO2020042916A1 (en) | 2020-03-05 |
CN112385227A (zh) | 2021-02-19 |
CA3106487A1 (en) | 2020-03-05 |
AU2019330406B2 (en) | 2023-02-02 |
US11044469B2 (en) | 2021-06-22 |
KR20230156813A (ko) | 2023-11-14 |
AU2019330406A1 (en) | 2021-02-04 |
KR20210027486A (ko) | 2021-03-10 |
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