MX2021001663A - Un codificador, un decodificador y metodos correspondientes usando bufer dedicado de ibc y actualizacion de valor predeterminado para componente luma y croma. - Google Patents
Un codificador, un decodificador y metodos correspondientes usando bufer dedicado de ibc y actualizacion de valor predeterminado para componente luma y croma.Info
- Publication number
- MX2021001663A MX2021001663A MX2021001663A MX2021001663A MX2021001663A MX 2021001663 A MX2021001663 A MX 2021001663A MX 2021001663 A MX2021001663 A MX 2021001663A MX 2021001663 A MX2021001663 A MX 2021001663A MX 2021001663 A MX2021001663 A MX 2021001663A
- Authority
- MX
- Mexico
- Prior art keywords
- ibc
- dedicated buffer
- luma
- decoder
- encoder
- 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
- H04N19/134—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
- H04N19/50—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
- H04N19/10—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
- H04N19/102—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
- H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
- H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
-
- 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
- H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
- H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
-
- 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
- H04N19/186—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
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
- H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
-
- 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
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
- H04N19/43—Hardware specially adapted for motion estimation or compensation
- H04N19/433—Hardware specially adapted for motion estimation or compensation characterised by techniques for memory access
-
- 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
-
- 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
- H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
- H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic 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
- H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
- H04N19/96—Tree coding, e.g. quad-tree coding
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
Un método de codificación implementado por un dispositivo de decodificación que comprende: inicializar un búfer dedicado para referencia de copia de intrabloque (intra block copy, IBC), cuando una unidad de codificación en árbol (coding tree unit, CTU) actual a ser decodificada es una primera CTU de una fila de CTU, determinar si un bloque actual en la CTU actual se predice usando el modo de IBC, obtener un vector de bloque de IBC para el bloque actual cuando el bloque actual se predice usando el modo de IBC, y obtener valores de muestra predicha para el bloque actual, con base en muestras de referencia del búfer dedicado y el vector de bloque de IBC para el bloque actual.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201962849119P | 2019-05-16 | 2019-05-16 | |
| EP2019065540 | 2019-06-13 | ||
| PCT/CN2020/090053 WO2020228744A1 (en) | 2019-05-16 | 2020-05-13 | An encoder, a decoder and corresponding methods using ibc dedicated buffer and default value refreshing for luma and chroma component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MX2021001663A true MX2021001663A (es) | 2021-05-12 |
Family
ID=73289357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2021001663A MX2021001663A (es) | 2019-05-16 | 2020-05-13 | Un codificador, un decodificador y metodos correspondientes usando bufer dedicado de ibc y actualizacion de valor predeterminado para componente luma y croma. |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US11463709B2 (es) |
| EP (1) | EP3912348A4 (es) |
| JP (2) | JP7106744B2 (es) |
| KR (2) | KR102596735B1 (es) |
| CN (2) | CN113840143A (es) |
| AU (1) | AU2020276527B9 (es) |
| BR (1) | BR112021000935A2 (es) |
| CA (1) | CA3131289C (es) |
| MX (1) | MX2021001663A (es) |
| MY (1) | MY207904A (es) |
| WO (1) | WO2020228744A1 (es) |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG11202107959WA (en) | 2019-02-02 | 2021-08-30 | Beijing Bytedance Network Technology Co Ltd | Buffer management for intra block copy in video coding |
| WO2020156549A1 (en) | 2019-02-02 | 2020-08-06 | Beijing Bytedance Network Technology Co., Ltd. | Buffer access methods for intra block copy in video coding |
| EP3915265A4 (en) | 2019-03-01 | 2022-06-22 | Beijing Bytedance Network Technology Co., Ltd. | DIRECTION-BASED PREDICTION FOR INTRA BLOCK COPY IN VIDEO CODING |
| CN113545068B (zh) | 2019-03-01 | 2023-09-15 | 北京字节跳动网络技术有限公司 | 用于视频编解码中的帧内块复制的基于顺序的更新 |
| KR20240132530A (ko) | 2019-03-04 | 2024-09-03 | 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 | 비디오 코딩에서 인트라 블록 복사의 구현 형태 |
| JP7405870B2 (ja) * | 2019-05-24 | 2023-12-26 | 華為技術有限公司 | Ibcマージ・リストのために使用する符号化器、復号器、及び対応する方法 |
| CN113966612B (zh) * | 2019-06-16 | 2025-07-04 | 北京字节跳动网络技术有限公司 | 屏幕内容编解码根据与运动信息之间的相互作用 |
| US11070816B2 (en) | 2019-06-18 | 2021-07-20 | Tencent America LLC | Conversion of decoded block vector for intra picture block compensation |
| CN120358342A (zh) * | 2019-06-20 | 2025-07-22 | 韩国电子通信研究院 | 视频编码/解码方法和装置以及比特流存储介质 |
| WO2020256105A1 (ja) * | 2019-06-21 | 2020-12-24 | 株式会社Jvcケンウッド | 動画像符号化装置、動画像符号化方法、及び動画像符号化プログラム、動画像復号装置、動画像復号方法及び動画像復号プログラム |
| WO2020262503A1 (ja) * | 2019-06-25 | 2020-12-30 | 株式会社Jvcケンウッド | 動画像符号化装置、動画像符号化方法、及び動画像符号化プログラム、動画像復号装置、動画像復号方法及び動画像復号プログラム |
| CN117294841A (zh) | 2019-07-06 | 2023-12-26 | 北京字节跳动网络技术有限公司 | 用于视频编解码中的帧内块复制的虚拟预测缓冲 |
| KR102635519B1 (ko) | 2019-07-10 | 2024-02-07 | 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 | 비디오 코딩에서 인트라 블록 카피를 위한 샘플 식별 |
| KR102695788B1 (ko) | 2019-07-11 | 2024-08-14 | 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 | 비디오 코딩에서 인트라 블록 복사를 위한 비트스트림 적합 제약 |
| BR112022001305A2 (pt) | 2019-07-25 | 2022-03-22 | Beijing Bytedance Network Tech Co Ltd | Método para processamento de vídeo, aparelho de processamento de vídeo, e, meio legível por computador |
| CN114208186B (zh) * | 2019-07-25 | 2023-12-22 | 北京字节跳动网络技术有限公司 | 帧内块复制虚拟缓冲区的尺寸限制 |
| CN114342410B (zh) | 2019-09-05 | 2025-03-21 | 北京字节跳动网络技术有限公司 | 帧内块复制模式下块矢量的范围约束 |
| KR102735189B1 (ko) * | 2019-09-23 | 2024-11-28 | 두인 비전 컴퍼니 리미티드 | 가상 파이프라인 데이터 유닛에 기초한 인트라 블록 복사 가상 버퍼의 설정 |
| WO2021185306A1 (en) | 2020-03-18 | 2021-09-23 | Beijing Bytedance Network Technology Co., Ltd. | Intra block copy buffer and palette predictor update |
| CN113556542B (zh) * | 2021-07-16 | 2023-04-28 | 安谋科技(中国)有限公司 | 帧内块复制单元及方法 |
| US11800122B2 (en) * | 2021-08-17 | 2023-10-24 | Mediatek Inc. | Video processing apparatus using internal prediction buffer that is shared by multiple coding tools for prediction |
| WO2023055267A1 (en) * | 2021-09-29 | 2023-04-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Efficient transmission of decoding information |
| CN115996214A (zh) * | 2021-10-20 | 2023-04-21 | 腾讯科技(深圳)有限公司 | 多媒体数据处理方法、装置、设备及存储介质 |
| US20250056009A1 (en) * | 2021-12-18 | 2025-02-13 | Nokia Technologies Oy | Coding cu with four-side reference samples for mpc |
| KR20250091198A (ko) * | 2022-10-18 | 2025-06-20 | 주식회사 윌러스표준기술연구소 | 비디오 신호 처리 방법 및 이를 위한 장치 |
| CN116760987B (zh) * | 2022-11-18 | 2024-12-31 | 杭州海康威视数字技术股份有限公司 | 图像编解码方法、装置及存储介质 |
| US12568202B2 (en) * | 2022-12-21 | 2026-03-03 | Tencent America LLC | IBC chroma block vector search range validation |
| US12581113B2 (en) * | 2023-01-11 | 2026-03-17 | Tencent America LLC | Template-matching based adaptive block vector resolution (ABVR) in IBC |
| CN116303137B (zh) * | 2023-02-27 | 2024-09-06 | 深圳市步科电气有限公司 | 数据滤波方法、装置、电子设备及可读存储介质 |
| CN118646866A (zh) * | 2023-03-13 | 2024-09-13 | 华为技术有限公司 | 编解码方法及电子设备 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2013228045A1 (en) * | 2013-09-13 | 2015-04-02 | Canon Kabushiki Kaisha | Method, apparatus and system for encoding and decoding video data |
| US10666968B2 (en) * | 2014-05-06 | 2020-05-26 | Hfi Innovation Inc. | Method of block vector prediction for intra block copy mode coding |
| EP3180917B1 (en) * | 2014-09-01 | 2022-04-20 | HFI Innovation Inc. | Method of intra picture block copy for screen content and video coding |
| US10212445B2 (en) * | 2014-10-09 | 2019-02-19 | Qualcomm Incorporated | Intra block copy prediction restrictions for parallel processing |
| US9955185B2 (en) * | 2015-02-12 | 2018-04-24 | Mediatek Inc. | Method and apparatus of constrained intra block copy for coding video |
| WO2016192678A1 (en) * | 2015-06-03 | 2016-12-08 | Mediatek Inc. | Methods for palette coding of image and video data |
| EP4040791A1 (en) * | 2015-06-08 | 2022-08-10 | Vid Scale, Inc. | Intra block copy mode for screen content coding |
| US10462468B2 (en) * | 2015-09-08 | 2019-10-29 | Mediatek Inc. | Method and system of decoded picture buffer for intra block copy mode |
| US11089323B2 (en) * | 2016-05-28 | 2021-08-10 | Mediatek Inc. | Method and apparatus of current picture referencing for video coding |
| EP4075798B1 (en) * | 2016-10-04 | 2024-09-11 | HFI Innovation Inc. | Method and apparatus for intra chroma coding in image and video coding |
| US10743029B2 (en) * | 2018-07-30 | 2020-08-11 | Tencent America LLC | Constraints on coding unit partition |
| US11683501B2 (en) * | 2019-01-17 | 2023-06-20 | Tencent America LLC | Method and apparatus for video coding |
| US10904557B2 (en) * | 2019-01-22 | 2021-01-26 | Tencent America LLC | Method and apparatus for video coding |
-
2020
- 2020-05-13 WO PCT/CN2020/090053 patent/WO2020228744A1/en not_active Ceased
- 2020-05-13 JP JP2021505861A patent/JP7106744B2/ja active Active
- 2020-05-13 CN CN202110532656.8A patent/CN113840143A/zh active Pending
- 2020-05-13 EP EP20806779.3A patent/EP3912348A4/en not_active Ceased
- 2020-05-13 CN CN202080005352.XA patent/CN113039798B/zh active Active
- 2020-05-13 MY MYPI2021004664A patent/MY207904A/en unknown
- 2020-05-13 AU AU2020276527A patent/AU2020276527B9/en active Active
- 2020-05-13 CA CA3131289A patent/CA3131289C/en active Active
- 2020-05-13 KR KR1020227027003A patent/KR102596735B1/ko active Active
- 2020-05-13 BR BR112021000935-3A patent/BR112021000935A2/pt unknown
- 2020-05-13 MX MX2021001663A patent/MX2021001663A/es unknown
- 2020-05-13 KR KR1020217000755A patent/KR102431537B1/ko active Active
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2021
- 2021-01-04 US US17/141,147 patent/US11463709B2/en active Active
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2022
- 2022-07-13 JP JP2022112148A patent/JP7375125B2/ja active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP3912348A1 (en) | 2021-11-24 |
| JP2022140481A (ja) | 2022-09-26 |
| JP7106744B2 (ja) | 2022-07-26 |
| CN113039798A (zh) | 2021-06-25 |
| US11463709B2 (en) | 2022-10-04 |
| CN113840143A (zh) | 2021-12-24 |
| JP7375125B2 (ja) | 2023-11-07 |
| AU2020276527B9 (en) | 2024-06-27 |
| MY207904A (en) | 2025-03-27 |
| EP3912348A4 (en) | 2022-06-22 |
| JP2021533644A (ja) | 2021-12-02 |
| KR102431537B1 (ko) | 2022-08-12 |
| CA3131289A1 (en) | 2020-11-19 |
| KR20220116339A (ko) | 2022-08-22 |
| CA3131289C (en) | 2023-12-12 |
| AU2020276527B2 (en) | 2024-06-13 |
| AU2020276527A1 (en) | 2021-09-09 |
| KR20210018490A (ko) | 2021-02-17 |
| CN113039798B (zh) | 2024-03-26 |
| KR102596735B1 (ko) | 2023-11-01 |
| WO2020228744A1 (en) | 2020-11-19 |
| BR112021000935A2 (pt) | 2021-04-20 |
| US20210152833A1 (en) | 2021-05-20 |
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