JP2024514103A - インター予測モードにおけるテンプレートマッチングの改善 - Google Patents

インター予測モードにおけるテンプレートマッチングの改善 Download PDF

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JP2024514103A
JP2024514103A JP2023560893A JP2023560893A JP2024514103A JP 2024514103 A JP2024514103 A JP 2024514103A JP 2023560893 A JP2023560893 A JP 2023560893A JP 2023560893 A JP2023560893 A JP 2023560893A JP 2024514103 A JP2024514103 A JP 2024514103A
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motion vector
current block
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JP2024514103A5 (enExample
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ヤオ－ジェン・チャン
ハン・フアン
ヴァディム・セレジン
チュン－チ・チェン
マルタ・カルチェヴィッチ
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クアルコム，インコーポレイテッド
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    • H—ELECTRICITY
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    • 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
    • H—ELECTRICITY
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    • 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
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    • 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
    • H04N19/109—Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes
    • H—ELECTRICITY
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    • 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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    • 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
    • H—ELECTRICITY
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    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
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    • 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
    • H04N19/154—Measured or subjectively estimated visual quality after decoding, e.g. measurement of distortion
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    • 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
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    • 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
    • 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
    • H04N19/517—Processing of motion vectors by encoding
    • H04N19/52—Processing of motion vectors by encoding by predictive encoding
    • 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
    • H04N19/53—Multi-resolution motion estimation; Hierarchical motion estimation
    • H—ELECTRICITY
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    • 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
    • H04N19/90—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

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JP2023560893A 2021-04-12 2022-03-23 インター予測モードにおけるテンプレートマッチングの改善 Pending JP2024514103A (ja)

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US202163173834P 2021-04-12 2021-04-12
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US202163176798P 2021-04-19 2021-04-19
US63/176,798 2021-04-19
US17/655,895 US12022085B2 (en) 2021-04-12 2022-03-22 Template matching refinement in inter-prediction modes
US17/655,895 2022-03-22
PCT/US2022/021551 WO2022221013A1 (en) 2021-04-12 2022-03-23 Template matching refinement in inter-prediction modes

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Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12388993B2 (en) * 2021-03-29 2025-08-12 Ofinno, Llc Geometric partitioning refinement
US12022085B2 (en) 2021-04-12 2024-06-25 Qualcomm Incorporated Template matching refinement in inter-prediction modes
CN117337566A (zh) * 2021-04-27 2024-01-02 抖音视界有限公司 用于视频处理的方法、设备和介质
CN117561714A (zh) 2021-06-15 2024-02-13 抖音视界有限公司 用于视频处理的方法、设备和介质
WO2022271889A1 (en) * 2021-06-23 2022-12-29 Beijing Dajia Internet Information Technology Co., Ltd. Geometric partition mode with motion vector refinement
EP4367887A4 (en) * 2021-07-06 2025-05-07 Beijing Dajia Internet Information Technology Co., Ltd. Geometry partitioning for affine motion-compensated prediction in video coding
CN119256539A (zh) 2021-08-16 2025-01-03 联发科技股份有限公司 具有运动向量差的合并模式的候选重新排序
US20250150600A1 (en) * 2021-08-16 2025-05-08 Mediatek Inc. Candidate reordering and motion vector refinement for geometric partitioning mode
JP2024533823A (ja) * 2021-10-01 2024-09-12 現代自動車株式会社 結合されたイントラ／インター予測モード又は幾何学的分割モードに動きベクトル差分を用いたマージモードを適用するビデオ符号化／復号化方法及び装置
CN118872276A (zh) * 2022-03-18 2024-10-29 联发科技股份有限公司 几何分割模式及合并候选重排
US12418670B2 (en) * 2022-10-14 2025-09-16 Tencent America LLC Template-matching based merge index reordering for geometric partition mode (GPM)
US20240137509A1 (en) * 2022-10-14 2024-04-25 Tencent America LLC Geometric affine mode and geometric subblock modes
US20260164024A1 (en) * 2022-10-25 2026-06-11 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Spatial geometric partitioning mode improvement for video coding
US12425570B2 (en) * 2022-10-26 2025-09-23 Tencent America LLC Context design for coding and decoding syntax elements in inter prediction modes
US20260197486A1 (en) * 2022-12-01 2026-07-09 Hyundai Motor Company Method and device for video coding using template matching-based inter prediction
CN116074537A (zh) * 2022-12-30 2023-05-05 浙江大华技术股份有限公司 编码方法、解码方法、电子设备和计算机可读存储介质
EP4648414A1 (en) * 2023-01-04 2025-11-12 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Intra template matching prediction method and apparatus, video coding method and apparatus, video decoding method and apparatus, and system
CN121079979A (zh) * 2023-04-13 2025-12-05 瑞典爱立信有限公司 增强型几何分区模式
KR20250067884A (ko) * 2023-04-19 2025-05-15 텐센트 아메리카 엘엘씨 인트라 템플릿 매칭 예측 시그널링
US20250024044A1 (en) * 2023-07-11 2025-01-16 Tencent America LLC On derivation and propagation of coded information of inter prediction
CN121970332A (zh) * 2023-10-04 2026-05-01 抖音视界有限公司 用于视频处理的方法、装置和介质
US12676965B2 (en) 2023-10-06 2026-07-07 Qualcomm Incorporated Using local illumination compensation and delta motion vector refinement together in video coding
WO2025214238A1 (en) * 2024-04-07 2025-10-16 Douyin Vision Co., Ltd. Method, apparatus, and medium for video processing
WO2025223302A1 (en) * 2024-04-21 2025-10-30 Guangdong Oppo Mobile Telecommunications Corp., Ltd. System and method of indicating template-based prediction for coding

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180249154A1 (en) * 2015-09-02 2018-08-30 Mediatek Inc. Method and apparatus of decoder side motion derivation for video coding
WO2019079206A2 (en) * 2017-10-16 2019-04-25 Qualcomm Incorporated MISCELLANEOUS IMPROVEMENTS IN THE MATCHING OF FRUC MODELS
WO2020103852A1 (en) * 2018-11-20 2020-05-28 Beijing Bytedance Network Technology Co., Ltd. Difference calculation based on patial position
WO2020162535A1 (ja) * 2019-02-08 2020-08-13 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、および復号方法
US20200413089A1 (en) * 2019-06-25 2020-12-31 Alibaba Group Holding Limited Method and system for motion refinement in video coding
WO2022217159A1 (en) * 2021-04-09 2022-10-13 Beijing Dajia Internet Information Technology Co., Ltd. Geometric partition mode with explicit motion signaling

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020222588A1 (ko) 2019-04-30 2020-11-05 주식회사 윌러스표준기술연구소 적응적 모션 벡터 해상도를 이용한 비디오 신호 처리 방법 및 장치
CN113924778B (zh) * 2019-06-03 2026-03-27 北京字节跳动网络技术有限公司 具有三角形分割的帧内块复制
KR20250021642A (ko) * 2019-06-04 2025-02-13 두인 비전 컴퍼니 리미티드 모션 후보 리스트 구성 프로세스의 조건부 구현
JP7346599B2 (ja) * 2019-06-04 2023-09-19 北京字節跳動網絡技術有限公司 ビデオ・データ処理方法、装置、記憶媒体及び記憶方法
CA3148751A1 (en) 2019-08-05 2021-02-11 Lg Electronics Inc. Video encoding/decoding method and apparatus using motion information candidate, and method for transmitting bitstream
US11477437B2 (en) * 2021-01-28 2022-10-18 Lemon Inc. Coding of motion information
JP7830484B2 (ja) * 2021-01-29 2026-03-16 クアルコム，インコーポレイテッド ビデオコーディングのためのモデルベースの動きベクトル差分導出およびテンプレート照合予測
US12219166B2 (en) * 2021-03-12 2025-02-04 Lemon Inc. Motion candidate derivation with search order and coding mode
US11936899B2 (en) * 2021-03-12 2024-03-19 Lemon Inc. Methods and systems for motion candidate derivation
US11671616B2 (en) * 2021-03-12 2023-06-06 Lemon Inc. Motion candidate derivation
US12309355B2 (en) 2021-03-29 2025-05-20 Qualcomm Incorporated Adaptively coding motion information for multiple hypothesis prediction for video coding
US11876973B2 (en) * 2021-04-12 2024-01-16 Alibaba (China) Co., Ltd. Method, apparatus, and non-transitory computer-readable storage medium for motion vector refinement for geometric partition mode
US12022085B2 (en) * 2021-04-12 2024-06-25 Qualcomm Incorporated Template matching refinement in inter-prediction modes
US11936877B2 (en) 2021-04-12 2024-03-19 Qualcomm Incorporated Template matching based affine prediction for video coding
US12137208B2 (en) * 2021-09-29 2024-11-05 Alibaba Innovation Private Limited Temporal merge candidates in merge candidate lists in video coding
US12200191B2 (en) * 2021-10-04 2025-01-14 Tencent America LLC On geometric partition mode with intra and inter prediction
US12641281B2 (en) * 2021-11-18 2026-05-26 Tencent America LLC Derived motion vector with single reference signaling
JP2024546353A (ja) * 2022-01-04 2024-12-19 ヒョンダイ モーター カンパニー マージモードを改善するビデオ符号化／復号化方法及びビットストリームを伝送する方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180249154A1 (en) * 2015-09-02 2018-08-30 Mediatek Inc. Method and apparatus of decoder side motion derivation for video coding
WO2019079206A2 (en) * 2017-10-16 2019-04-25 Qualcomm Incorporated MISCELLANEOUS IMPROVEMENTS IN THE MATCHING OF FRUC MODELS
WO2020103852A1 (en) * 2018-11-20 2020-05-28 Beijing Bytedance Network Technology Co., Ltd. Difference calculation based on patial position
WO2020162535A1 (ja) * 2019-02-08 2020-08-13 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、および復号方法
US20200413089A1 (en) * 2019-06-25 2020-12-31 Alibaba Group Holding Limited Method and system for motion refinement in video coding
WO2022217159A1 (en) * 2021-04-09 2022-10-13 Beijing Dajia Internet Information Technology Co., Ltd. Geometric partition mode with explicit motion signaling

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
HAN GAO, ET AL.: "Geometric Partitioning Mode in Versatile Video Coding: Algorithm Review and Analysis", IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, vol. 31, no. 9, JPN6026020917, 24 November 2020 (2020-11-24), pages 3603 - 3607, ISSN: 0005869123 *
THOMAS GUIONNET, ET AL.: "CE5.h: Reducing the coding cost of merge index by dynamic merge index re-allocation", JOINT COLLABORATIVE TEAM ON 3D VIDEO CODING EXTENSION DEVELOPMENT OF ITU-T SG 16 WP 3 AND ISO/IEC JT, vol. [JCT3V-B0078] (version 2), JPN6026020916, 8 October 2012 (2012-10-08), ISSN: 0005869122 *

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EP4324195A1 (en) 2024-02-21
BR112023020168A2 (pt) 2023-12-05
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US12022085B2 (en) 2024-06-25

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