JP6950004B2 - ビデオコーディングにおいて変換処理とともに適用されるイントラフィルタ処理 - Google Patents

ビデオコーディングにおいて変換処理とともに適用されるイントラフィルタ処理 Download PDF

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JP6950004B2
JP6950004B2 JP2019569475A JP2019569475A JP6950004B2 JP 6950004 B2 JP6950004 B2 JP 6950004B2 JP 2019569475 A JP2019569475 A JP 2019569475A JP 2019569475 A JP2019569475 A JP 2019569475A JP 6950004 B2 JP6950004 B2 JP 6950004B2
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JP2020523910A5 (OSRAM
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セレジン、バディム
ジャオ、シン
カルチェビチ、マルタ
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Qualcomm Inc
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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
    • H04N19/70—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
    • 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
    • H04N19/117—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
    • H04N19/12—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
    • 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
    • H04N19/157—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
    • H04N19/174—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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
    • 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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks

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  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
JP2019569475A 2017-06-15 2018-05-24 ビデオコーディングにおいて変換処理とともに適用されるイントラフィルタ処理 Active JP6950004B2 (ja)

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US201762520426P 2017-06-15 2017-06-15
US62/520,426 2017-06-15
US15/987,560 US10805641B2 (en) 2017-06-15 2018-05-23 Intra filtering applied together with transform processing in video coding
US15/987,560 2018-05-23
PCT/US2018/034352 WO2018231488A1 (en) 2017-06-15 2018-05-24 Intra filtering applied together with transform processing in video coding

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KR (1) KR102278720B1 (OSRAM)
CN (1) CN110720218B (OSRAM)
AU (1) AU2018282523B2 (OSRAM)
BR (1) BR112019025629A2 (OSRAM)
CA (1) CA3063559C (OSRAM)
CL (1) CL2019003620A1 (OSRAM)
CO (1) CO2019013898A2 (OSRAM)
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Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11146795B2 (en) 2017-03-10 2021-10-12 Qualcomm Incorporated Intra filtering flag in video coding
US10805641B2 (en) 2017-06-15 2020-10-13 Qualcomm Incorporated Intra filtering applied together with transform processing in video coding
KR102540171B1 (ko) * 2017-11-22 2023-06-05 인텔렉추얼디스커버리 주식회사 영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 기록 매체
EP3496401A1 (en) * 2017-12-05 2019-06-12 Thomson Licensing Method and apparatus for video encoding and decoding based on block shape
WO2019117634A1 (ko) * 2017-12-15 2019-06-20 엘지전자 주식회사 2차 변환에 기반한 영상 코딩 방법 및 그 장치
US10567752B2 (en) 2018-07-02 2020-02-18 Tencent America LLC Method and apparatus for intra prediction for non-square blocks in video compression
US10911765B2 (en) * 2018-08-01 2021-02-02 Tencent America LLC Method and apparatus for video coding
US10491893B1 (en) 2018-08-29 2019-11-26 Tencent America LLC Method and apparatus for multi-line intra prediction
US10834393B2 (en) * 2018-09-10 2020-11-10 Tencent America LLC Intra interpolation filter for multi-line intra prediction
EP3841752B1 (en) * 2018-11-19 2024-09-25 Huawei Technologies Co., Ltd. Methods for adapting intra prediction smoothing processing for video coding, encoder, decoder and computer program product
US11082692B2 (en) 2018-12-28 2021-08-03 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for selecting transform selection in an encoder and decoder
KR20250118246A (ko) * 2019-01-14 2025-08-05 삼성전자주식회사 부호화 방법 및 그 장치, 복호화 방법 및 그 장치
KR20210114386A (ko) 2019-02-08 2021-09-23 주식회사 윌러스표준기술연구소 이차 변환을 이용하는 비디오 신호 처리 방법 및 장치
CN113439441B (zh) 2019-02-15 2025-06-20 北京字节跳动网络技术有限公司 基于块分割的变换参数推导
JP7293376B2 (ja) * 2019-02-28 2023-06-19 ヒューマックス・カンパニー・リミテッド イントラ予測ベースのビデオ信号処理方法及び装置
CN113557719B (zh) * 2019-03-11 2023-09-12 日本放送协会 图像编码装置、图像解码装置和程序
JP7416450B2 (ja) * 2019-03-11 2024-01-17 テンセント・アメリカ・エルエルシー インターｐｄｐｃモードの改善
CN118200527A (zh) * 2019-03-22 2024-06-14 Lg 电子株式会社 图像编译系统中的图像解码方法和设备以及图像编码方法和设备
US11616966B2 (en) * 2019-04-03 2023-03-28 Mediatek Inc. Interaction between core transform and secondary transform
EP3949407A4 (en) * 2019-04-16 2023-04-12 HFI Innovation Inc. Methods and apparatuses for coding video data with adaptive secondary transform signaling depending on tb level syntax
EP3949423A4 (en) 2019-04-16 2023-04-12 HFI Innovation Inc. METHODS AND APPARATUS FOR ENCODING VIDEO DATA USING SECONDARY TRANSFORMATION
CN113728636B (zh) 2019-04-23 2022-11-04 北京字节跳动网络技术有限公司 编解码视频中二次变换的选择性使用
KR20220006059A (ko) * 2019-05-10 2022-01-14 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 비디오 처리를 위한 이차 변환 행렬의 선택
EP3949403A4 (en) 2019-05-11 2022-06-22 Beijing Bytedance Network Technology Co., Ltd. INTERACTIONS BETWEEN SEVERAL INTRACODING PROCEDURES
CN113940074B (zh) * 2019-05-27 2024-12-17 北京小米移动软件有限公司 基于广角帧内预测和变换的图像编码方法和装置
WO2020244656A1 (en) 2019-06-07 2020-12-10 Beijing Bytedance Network Technology Co., Ltd. Conditional signaling of reduced secondary transform in video bitstreams
EP3987801A1 (en) * 2019-06-21 2022-04-27 Telefonaktiebolaget LM Ericsson (PUBL) Method and apparatus for non-separable transform selection in an encoder and decoder
CN113994681A (zh) * 2019-06-24 2022-01-28 夏普株式会社 在视频编码中用于执行帧内预测编码的系统和方法
CN120769063A (zh) 2019-06-25 2025-10-10 Oppo广东移动通信有限公司 信息处理方法及装置、设备、存储介质
JP7422858B2 (ja) 2019-08-03 2024-01-26 北京字節跳動網絡技術有限公司 ビデオ処理方法、装置、記憶媒体及び記憶方法
CN118632034A (zh) 2019-08-17 2024-09-10 北京字节跳动网络技术有限公司 为视频中的缩减二次变换的边信息的上下文建模
US11677984B2 (en) * 2019-08-20 2023-06-13 Qualcomm Incorporated Low-frequency non-separable transform (LFNST) signaling
CN114424573B (zh) 2019-09-19 2024-03-26 北京字节跳动网络技术有限公司 视频编解码中的参考样点位置推导
CN114503574B (zh) 2019-09-19 2025-01-10 北京字节跳动网络技术有限公司 视频编解码中的缩放窗口
WO2021052832A1 (en) 2019-09-20 2021-03-25 Nokia Technologies Oy An apparatus, a method and a computer program for video coding and decoding
BR112022006453A2 (pt) 2019-10-05 2022-09-27 Beijing Bytedance Network Tech Co Ltd Método de processamento de dados de dados de vídeo, aparelho para processar dados de vídeo, meio de armazenamento não transitório legível por computador e meio de gravação não transitório legível por computador
CN117499640A (zh) 2019-10-12 2024-02-02 北京字节跳动网络技术有限公司 视频编解码中的预测类型信令
EP4029274A4 (en) 2019-10-13 2022-11-30 Beijing Bytedance Network Technology Co., Ltd. INTERPLAY BETWEEN REFERENCE IMAGE CAPTURE AND VIDEO ENCODING TOOLS
EP4066502A4 (en) 2019-12-27 2023-01-18 Beijing Bytedance Network Technology Co., Ltd. Signaling of slice types in video pictures headers
US11368715B2 (en) * 2019-12-27 2022-06-21 Qualcomm Incorporated Block-based delta pulse code modulation for video coding
CN115606182A (zh) 2020-03-25 2023-01-13 抖音视界有限公司（Cn） 使用增强二次变换的编解码视频处理
US12132932B2 (en) * 2020-12-22 2024-10-29 Qualcomm Incorporated Intra prediction using enhanced interpolation filters
CN118923110A (zh) * 2022-03-23 2024-11-08 北京达佳互联信息技术有限公司 用于视频编解码的跨分量预测的方法和装置
US11695965B1 (en) 2022-10-13 2023-07-04 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Video coding using a coded picture buffer

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6088802A (en) 1997-06-04 2000-07-11 Spyrus, Inc. Peripheral device with integrated security functionality
US7783901B2 (en) 2001-12-05 2010-08-24 At&T Intellectual Property Ii, L.P. Network security device and method
JP4617644B2 (ja) 2003-07-18 2011-01-26 ソニー株式会社 符号化装置及び方法
EP2039171B1 (en) 2006-07-07 2016-10-05 Telefonaktiebolaget LM Ericsson (publ) Weighted prediction for video coding
US8621601B2 (en) 2008-05-21 2013-12-31 Sandisk Technologies Inc. Systems for authentication for access to software development kit for a peripheral device
EP2559239A2 (en) 2010-04-13 2013-02-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus for intra predicting a block, apparatus for reconstructing a block of a picture, apparatus for reconstructing a block of a picture by intra prediction
CN102857752B (zh) 2011-07-01 2016-03-30 华为技术有限公司 一种像素预测方法和装置
US9237358B2 (en) 2011-11-08 2016-01-12 Qualcomm Incorporated Context reduction for context adaptive binary arithmetic coding
US10681036B2 (en) 2014-03-28 2020-06-09 Ncr Corporation Composite security interconnect device and methods
US10445710B2 (en) 2014-08-26 2019-10-15 Ncr Corporation Security device key management
CN104301730A (zh) * 2014-10-14 2015-01-21 河海大学常州校区 基于视频移动设备的双向视频编解码系统及其方法
WO2016154963A1 (en) 2015-04-01 2016-10-06 Mediatek Inc. Methods for chroma coding in video codec
US10425648B2 (en) * 2015-09-29 2019-09-24 Qualcomm Incorporated Video intra-prediction using position-dependent prediction combination for video coding
US10931947B2 (en) * 2016-05-04 2021-02-23 Sharp Kabushiki Kaisha Systems and methods for coding transform data
CN105872564B (zh) * 2016-05-27 2019-02-19 武汉拓宝科技股份有限公司 H.264/avc到h.265/hevc转码的帧内预测模式决定方法及系统
US20180199062A1 (en) 2017-01-11 2018-07-12 Qualcomm Incorporated Intra prediction techniques for video coding
US11146795B2 (en) 2017-03-10 2021-10-12 Qualcomm Incorporated Intra filtering flag in video coding
US10805641B2 (en) 2017-06-15 2020-10-13 Qualcomm Incorporated Intra filtering applied together with transform processing in video coding

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KR102278720B1 (ko) 2021-07-16
CN110720218A (zh) 2020-01-21
KR20200019132A (ko) 2020-02-21
CN110720218B (zh) 2022-08-16
BR112019025629A2 (pt) 2020-06-16
EP3639518A1 (en) 2020-04-22
US20180367814A1 (en) 2018-12-20
CO2019013898A2 (es) 2020-01-17
CA3063559C (en) 2023-03-28
AU2018282523B2 (en) 2022-06-02
AU2018282523A1 (en) 2019-12-05
CA3063559A1 (en) 2018-12-20
EP3639518B1 (en) 2023-08-23
EP4236312A3 (en) 2023-10-25
WO2018231488A1 (en) 2018-12-20
TW201906406A (zh) 2019-02-01
TWI745594B (zh) 2021-11-11
US10805641B2 (en) 2020-10-13
EP4236312A2 (en) 2023-08-30
CL2019003620A1 (es) 2020-06-26
JP2020523910A (ja) 2020-08-06

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