CN113728626B - 不同运动矢量细化中的基于区域的梯度计算 - Google Patents

不同运动矢量细化中的基于区域的梯度计算 Download PDF

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CN113728626B
CN113728626B CN202080029809.0A CN202080029809A CN113728626B CN 113728626 B CN113728626 B CN 113728626B CN 202080029809 A CN202080029809 A CN 202080029809A CN 113728626 B CN113728626 B CN 113728626B
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current video
prediction
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CN113728626A (zh
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张凯
张莉
刘鸿彬
王悦
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Beijing ByteDance Network Technology Co Ltd
ByteDance Inc
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    • 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
    • H04N19/523—Motion estimation or motion compensation with sub-pixel accuracy
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    • H04N19/51—Motion estimation or motion compensation
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    • H04N19/51—Motion estimation or motion compensation
    • H04N19/537—Motion estimation other than block-based
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    • H04N19/103—Selection of coding mode or of prediction mode
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    • 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
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    • 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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    • 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
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures

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Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4221223A1 (en) 2019-02-07 2023-08-02 Vid Scale, Inc. Systems, apparatus and methods for inter prediction refinement with optical flow
CN113728651B (zh) * 2019-04-02 2022-10-25 北京字节跳动网络技术有限公司 视频处理中的自适应环路滤波
CN113728626B (zh) 2019-04-19 2023-05-30 北京字节跳动网络技术有限公司 不同运动矢量细化中的基于区域的梯度计算
CN113711609B (zh) 2019-04-19 2023-12-01 北京字节跳动网络技术有限公司 利用光流的预测细化过程中的增量运动矢量
WO2020211866A1 (en) 2019-04-19 2020-10-22 Beijing Bytedance Network Technology Co., Ltd. Applicability of prediction refinement with optical flow process
WO2020233659A1 (en) 2019-05-21 2020-11-26 Beijing Bytedance Network Technology Co., Ltd. Adaptive motion vector difference resolution for affine mode
CN114026851B (zh) * 2019-06-21 2026-01-06 交互数字Vc控股公司 利用光流的运动补偿的精度细化
US12238279B2 (en) * 2019-07-01 2025-02-25 Interdigital Ce Patent Holdings, Sas Bi-prediction refinement in affine with optical flow
CN117336468A (zh) 2019-08-10 2024-01-02 北京字节跳动网络技术有限公司 视频比特流中的子图片相关信令通知
CN114365490B (zh) 2019-09-09 2024-06-18 北京字节跳动网络技术有限公司 高精度图像和视频编解码的系数缩放
CN117615155A (zh) 2019-09-19 2024-02-27 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
JP2021048514A (ja) * 2019-09-19 2021-03-25 シャープ株式会社 動画像符号化装置、動画像復号装置、予測画像生成方法
WO2021054886A1 (en) * 2019-09-20 2021-03-25 Telefonaktiebolaget Lm Ericsson (Publ) Methods of video encoding and/or decoding with bidirectional optical flow simplification on shift operations and related apparatus
CN114731392B (zh) 2019-09-21 2025-01-03 北京字节跳动网络技术有限公司 用于图像和视频编解码的高精度变换和量化
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
CN117376557A (zh) 2019-10-13 2024-01-09 北京字节跳动网络技术有限公司 参考图片重采样与视频编解码工具之间的相互作用
EP4032290A4 (en) 2019-10-18 2022-11-30 Beijing Bytedance Network Technology Co., Ltd. SYNTAX RESTRICTIONS IN PARAMETER SET SIGNALING OF SUBPICTURES
CN115280774B (zh) 2019-12-02 2025-08-19 抖音视界有限公司 视觉媒体处理的方法、装置及非暂时性计算机可读存储介质
KR102922307B1 (ko) 2019-12-27 2026-02-05 두인 비전 컴퍼니 리미티드 비디오 픽처 헤더의 슬라이스 유형의 시그널링
WO2021190464A1 (en) 2020-03-23 2021-09-30 Beijing Bytedance Network Technology Co., Ltd. Controlling deblocking filtering at different levels in coded video
US20230021722A1 (en) * 2021-07-20 2023-01-26 Mediatek Inc. Apparatus and method for performing motion vector refinement to get more precise motion vectors
US12143590B2 (en) * 2022-02-04 2024-11-12 Tencent America LLC Affine estimation in pre-analysis of encoder
EP4258666A1 (en) * 2022-04-07 2023-10-11 Beijing Xiaomi Mobile Software Co., Ltd. Encoding/decoding video picture data
US12323615B2 (en) * 2022-07-12 2025-06-03 Tencent America LLC Full-pixel based and group-based motion compensated picture boundary padding
CN119769090A (zh) * 2022-07-15 2025-04-04 抖音视界有限公司 用于视频处理的方法、装置和介质
US20250203075A1 (en) * 2022-09-09 2025-06-19 Beijing Dajia Internet Information Technology Co., Ltd. Methods and devices for adaptive loop filtering
US12401812B2 (en) * 2022-10-18 2025-08-26 Tencent America LLC Method and apparatus for affine motion refinement
EP4706252A2 (en) * 2023-04-24 2026-03-11 Tencent America LLC Bi-directional optical flow on gpm with bi-predictive motion vector
US12526425B2 (en) * 2023-10-16 2026-01-13 Tencent America LLC CCSO with band offset only option
CN121486583B (zh) * 2026-01-12 2026-04-14 湖南三力信息技术有限公司 基于ai的视频压缩平台

Family Cites Families (81)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101703362B1 (ko) 2008-09-04 2017-02-06 톰슨 라이센싱 암시적 모션 예측을 이용한 예측 리파인먼트를 위한 방법들 및 장치들
JP2011142585A (ja) * 2010-01-08 2011-07-21 Sony Corp 画像処理装置、情報記録媒体、および画像処理方法、並びにプログラム
KR101529992B1 (ko) 2010-04-05 2015-06-18 삼성전자주식회사 픽셀 그룹별 픽셀값 보상을 위한 비디오 부호화 방법과 그 장치, 및 픽셀 그룹별 픽셀값 보상을 위한 비디오 복호화 방법과 그 장치
JP5768662B2 (ja) 2011-10-31 2015-08-26 富士通株式会社 動画像復号装置、動画像符号化装置、動画像復号方法、動画像符号化方法、動画像復号プログラム及び動画像符号化プログラム
US9503720B2 (en) 2012-03-16 2016-11-22 Qualcomm Incorporated Motion vector coding and bi-prediction in HEVC and its extensions
JP6012014B2 (ja) 2012-03-30 2016-10-25 サン パテント トラスト 画像符号化方法および画像復号方法
CN110545419B (zh) 2012-10-12 2022-11-22 韩国电子通信研究院 图像编码/解码方法和使用其的装置
US10412419B2 (en) 2013-07-12 2019-09-10 Qualcomm Incorporated Adaptive filtering in video coding
RU2016115055A (ru) 2013-09-20 2017-10-25 Вид Скейл, Инк. Системы и способы обеспечения кодирования 3d справочной таблицы для масштабируемости цветовой гаммы
EP3138293A4 (en) 2014-04-29 2017-05-24 Microsoft Technology Licensing, LLC Encoder-side decisions for sample adaptive offset filtering
AU2014202921B2 (en) 2014-05-29 2017-02-02 Canon Kabushiki Kaisha Method, apparatus and system for de-blocking a block of video samples
WO2015194669A1 (ja) 2014-06-19 2015-12-23 シャープ株式会社 画像復号装置、画像符号化装置および予測画像生成装置
EP3206403A4 (en) 2014-11-04 2017-11-01 Samsung Electronics Co., Ltd. Video encoding method and apparatus therefor, and video decoding method and apparatus therefor, in which edge type offset is applied
SG11201703454XA (en) 2014-11-18 2017-06-29 Mediatek Inc Method of bi-prediction video coding based on motion vectors from uni-prediction and merge candidate
US10158836B2 (en) 2015-01-30 2018-12-18 Qualcomm Incorporated Clipping for cross-component prediction and adaptive color transform for video coding
US10057574B2 (en) 2015-02-11 2018-08-21 Qualcomm Incorporated Coding tree unit (CTU) level adaptive loop filter (ALF)
JP6532962B2 (ja) 2015-06-09 2019-06-19 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． 画像符号化方法、画像復号方法、符号化デバイス、および復号デバイス
CN115134609B (zh) 2015-06-11 2025-02-21 杜比实验室特许公司 使用自适应去块滤波编码和解码图像的方法及其装置
JP2018524897A (ja) 2015-06-19 2018-08-30 ノキア テクノロジーズ オーユー ビデオの符号化・復号装置、方法、およびコンピュータプログラム
CA2999826C (en) 2015-09-25 2020-10-13 Huawei Technologies Co., Ltd. Apparatus and method for video motion compensation with selectable interpolation filter
EP3360329A4 (en) 2015-11-18 2019-04-10 MediaTek Inc. METHOD AND DEVICE FOR AN INTRAPRADICATION MODE WITH AN INTRAPREDICATION FILTER FOR VIDEO AND IMAGE COMPRESSION
US10432947B2 (en) 2015-11-24 2019-10-01 Samsung Electronics Co., Ltd. Method and apparatus for decoding video, and method and apparatus for coding video
GB2561507B (en) 2016-01-07 2021-12-22 Mediatek Inc Method and apparatus for affine merge mode prediction for video coding system
EP3413563B1 (en) * 2016-02-03 2026-02-18 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Moving image decoding device, moving image encoding device, and prediction image generation device
EP3398331A4 (en) 2016-02-05 2019-04-10 Mediatek Inc. METHOD AND APPARATUS FOR MOTION COMPENSATION BASED ON BIDIRECTIONAL OPTICAL FLUSH TECHNOLOGIES FOR VIDEO CODING
US11405611B2 (en) 2016-02-15 2022-08-02 Qualcomm Incorporated Predicting filter coefficients from fixed filters for video coding
US11095898B2 (en) 2016-03-28 2021-08-17 Lg Electronics Inc. Inter-prediction mode based image processing method, and apparatus therefor
EP3446480B1 (en) 2016-04-22 2025-10-08 InterDigital VC Holdings, Inc. Prediction systems and methods for video coding based on filtering nearest neighboring pixels
JP2019519972A (ja) 2016-05-05 2019-07-11 ヴィド スケール インコーポレイテッド イントラコーディングのための制御点ベースのイントラ方向表現
EP4060992B1 (en) 2016-05-13 2025-07-02 InterDigital VC Holdings, Inc. Systems and methods for generalized multi-hypothesis prediction for video coding
CA3023986A1 (en) 2016-05-13 2017-11-16 Interdigital Vc Holdings, Inc. Method and apparatus for video coding with adaptive clipping
US10560712B2 (en) 2016-05-16 2020-02-11 Qualcomm Incorporated Affine motion prediction for video coding
US11095922B2 (en) 2016-08-02 2021-08-17 Qualcomm Incorporated Geometry transformation-based adaptive loop filtering
US10728572B2 (en) * 2016-09-11 2020-07-28 Lg Electronics Inc. Method and apparatus for processing video signal by using improved optical flow motion vector
WO2018061563A1 (ja) 2016-09-27 2018-04-05 シャープ株式会社 アフィン動きベクトル導出装置、予測画像生成装置、動画像復号装置、および動画像符号化装置
US10631002B2 (en) 2016-09-30 2020-04-21 Qualcomm Incorporated Frame rate up-conversion coding mode
US10341659B2 (en) 2016-10-05 2019-07-02 Qualcomm Incorporated Systems and methods of switching interpolation filters
US10448010B2 (en) 2016-10-05 2019-10-15 Qualcomm Incorporated Motion vector prediction for affine motion models in video coding
WO2018105579A1 (ja) 2016-12-09 2018-06-14 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ 符号化装置、復号装置、符号化方法及び復号方法
US11051033B2 (en) 2017-01-04 2021-06-29 Samsung Electronics Co., Ltd. Video decoding method and apparatus and video encoding method and apparatus
US20180199057A1 (en) * 2017-01-12 2018-07-12 Mediatek Inc. Method and Apparatus of Candidate Skipping for Predictor Refinement in Video Coding
US10701366B2 (en) * 2017-02-21 2020-06-30 Qualcomm Incorporated Deriving motion vector information at a video decoder
US10523964B2 (en) 2017-03-13 2019-12-31 Qualcomm Incorporated Inter prediction refinement based on bi-directional optical flow (BIO)
US10701390B2 (en) 2017-03-14 2020-06-30 Qualcomm Incorporated Affine motion information derivation
WO2018166357A1 (en) * 2017-03-16 2018-09-20 Mediatek Inc. Method and apparatus of motion refinement based on bi-directional optical flow for video coding
US10491917B2 (en) 2017-03-22 2019-11-26 Qualcomm Incorporated Decoder-side motion vector derivation
CN116708828A (zh) * 2017-04-24 2023-09-05 Sk电信有限公司 编解码视频数据的方法、发送编码视频数据比特流的方法
US10805630B2 (en) * 2017-04-28 2020-10-13 Qualcomm Incorporated Gradient based matching for motion search and derivation
CN116437103A (zh) 2017-05-19 2023-07-14 松下电器（美国）知识产权公司 解码装置和编码装置
CN107277316B (zh) 2017-06-12 2020-05-12 京东方科技集团股份有限公司 显示装置及其制造方法
US10904565B2 (en) * 2017-06-23 2021-01-26 Qualcomm Incorporated Memory-bandwidth-efficient design for bi-directional optical flow (BIO)
US10477237B2 (en) 2017-06-28 2019-11-12 Futurewei Technologies, Inc. Decoder side motion vector refinement in video coding
JP7168593B2 (ja) 2017-07-03 2022-11-09 ヴィド スケール インコーポレイテッド 双方向オプティカルフローに基づいた動き補償予測
US10757442B2 (en) 2017-07-05 2020-08-25 Qualcomm Incorporated Partial reconstruction based template matching for motion vector derivation
US11505446B2 (en) 2017-08-24 2022-11-22 Ford Global Technologies, Llc Enhanced vehicle refueling
US10609384B2 (en) 2017-09-21 2020-03-31 Futurewei Technologies, Inc. Restriction on sub-block size derivation for affine inter prediction
MX2020003656A (es) 2017-10-02 2020-10-12 Arris Entpr Llc Sistema y método para reducir artefactos de bloque y proporcionar eficiencia de codificación mejorada.
US10757417B2 (en) 2018-01-20 2020-08-25 Qualcomm Incorporated Affine motion compensation in video coding
GB2588004B (en) 2018-06-05 2023-03-01 Beijing Bytedance Network Tech Co Ltd Interaction between IBC and affine
US11303923B2 (en) 2018-06-15 2022-04-12 Intel Corporation Affine motion compensation for current picture referencing
TWI731345B (zh) 2018-06-19 2021-06-21 大陸商北京字節跳動網絡技術有限公司 模式相依運動向量差精確集
GB2590228B (en) 2018-08-04 2023-04-05 Beijing Bytedance Network Tech Co Ltd Clipping of updated MV or derived MV
KR102635047B1 (ko) 2018-09-19 2024-02-07 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 적응적 움직임 벡터 해상도를 가지는 어파인 모드에 대한 구문 재사용
TWI815974B (zh) 2018-09-23 2023-09-21 大陸商北京字節跳動網絡技術有限公司 具有自適應運動矢量分辨率的運動矢量的修改
WO2020070612A1 (en) 2018-10-06 2020-04-09 Beijing Bytedance Network Technology Co., Ltd. Improvement for temporal gradient calculating in bio
CN111357294B (zh) 2018-10-23 2022-12-30 北京字节跳动网络技术有限公司 基于子块的运动信息列表的简化熵编解码
CN118694931B (zh) 2018-11-05 2025-12-02 北京字节跳动网络技术有限公司 编解码视频数据的方法、装置及计算机可读存储介质
CN113170093B (zh) 2018-11-20 2023-05-02 北京字节跳动网络技术有限公司 视频处理中的细化帧间预测
BR112021010054A2 (pt) 2018-11-26 2021-08-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. fluxo de dados, decodificador e codificador de vídeo baseado em bloco e seus respectivos métodos
GB2580173B (en) 2018-12-21 2022-07-27 Canon Kk A filter
WO2020172342A1 (en) 2019-02-20 2020-08-27 Beijing Dajia Internet Information Technology Co., Ltd. Methods and apparatus of motion vector rounding, clipping and storage for inter prediction
US20200296405A1 (en) 2019-03-14 2020-09-17 Qualcomm Incorporated Affine motion compensation refinement using optical flow
KR102850505B1 (ko) 2019-03-15 2025-08-25 베이징 다지아 인터넷 인포메이션 테크놀로지 컴퍼니 리미티드 양방향 광 흐름을 위한 비트-폭 제어를 위한 방법 및 디바이스
CN113545083B (zh) 2019-03-18 2023-08-22 腾讯美国有限责任公司 视频编解码的方法和装置
US11343525B2 (en) 2019-03-19 2022-05-24 Tencent America LLC Method and apparatus for video coding by constraining sub-block motion vectors and determining adjustment values based on constrained sub-block motion vectors
US11962796B2 (en) 2019-04-01 2024-04-16 Qualcomm Incorporated Gradient-based prediction refinement for video coding
CN113728651B (zh) 2019-04-02 2022-10-25 北京字节跳动网络技术有限公司 视频处理中的自适应环路滤波
CN113711609B (zh) 2019-04-19 2023-12-01 北京字节跳动网络技术有限公司 利用光流的预测细化过程中的增量运动矢量
CN113728626B (zh) 2019-04-19 2023-05-30 北京字节跳动网络技术有限公司 不同运动矢量细化中的基于区域的梯度计算
WO2020211866A1 (en) 2019-04-19 2020-10-22 Beijing Bytedance Network Technology Co., Ltd. Applicability of prediction refinement with optical flow process
US20210092390A1 (en) 2019-09-23 2021-03-25 Alibaba Group Holding Limited Methods and apparatuses for prediction refinement with optical flow in reference picture resampling

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