JP7447097B2 - 画像符号化／復号化方法及び装置 - Google Patents

画像符号化／復号化方法及び装置 Download PDF

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JP7447097B2
JP7447097B2 JP2021516609A JP2021516609A JP7447097B2 JP 7447097 B2 JP7447097 B2 JP 7447097B2 JP 2021516609 A JP2021516609 A JP 2021516609A JP 2021516609 A JP2021516609 A JP 2021516609A JP 7447097 B2 JP7447097 B2 JP 7447097B2
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motion vector
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JP2022502912A (ja
JPWO2020067700A5 (https=
JP2022502912A5 (https=
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キム、ギベク
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B1 Institute of Image Technology Inc
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
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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
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    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
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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
    • H—ELECTRICITY
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    • H04N19/507—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction using conditional replenishment
    • H—ELECTRICITY
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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
    • H04N19/513—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
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    • 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
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    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
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    • 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

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  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Discrete Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
JP2021516609A 2018-09-24 2019-09-24 画像符号化／復号化方法及び装置 Active JP7447097B2 (ja)

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JP2024027815A JP7577235B2 (ja) 2018-09-24 2024-02-27 画像符号化／復号化方法及び装置
JP2024185054A JP7711293B2 (ja) 2018-09-24 2024-10-21 画像符号化／復号化方法及び装置
JP2025114050A JP2025138854A (ja) 2018-09-24 2025-07-04 画像符号化／復号化方法及び装置

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KR20180114539 2018-09-24
KR10-2018-0114539 2018-09-24
KR20180114536 2018-09-24
KR20180114540 2018-09-24
KR10-2018-0114540 2018-09-24
KR10-2018-0114536 2018-09-24
PCT/KR2019/012404 WO2020067700A1 (ko) 2018-09-24 2019-09-24 영상 부호화/복호화 방법 및 장치

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CA (3) CA3296569A1 (https=)
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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102424189B1 (ko) * 2018-02-14 2022-07-21 후아웨이 테크놀러지 컴퍼니 리미티드 적응형 보간 필터
KR102824491B1 (ko) * 2019-08-31 2025-06-25 엘지전자 주식회사 비디오 또는 영상 코딩 방법 및 그 장치
GB201913403D0 (en) * 2019-09-17 2019-10-30 Canon Kk Method and apparatus for encoding and decoding a video stream with subpictures
CN113727119B (zh) * 2020-05-20 2023-03-17 Oppo广东移动通信有限公司 帧间预测方法、编码器、解码器以及计算机存储介质
WO2022117369A1 (en) * 2020-12-01 2022-06-09 Nokia Technologies Oy Content adaptive collocated reference picture selection
US12294693B2 (en) 2021-09-01 2025-05-06 Tencent America LLC Template matching on IBC merge candidates
US20230102401A1 (en) * 2021-09-30 2023-03-30 Qualcomm Incorporated Inter prediction coding for geometry point cloud compression
US12518428B2 (en) * 2021-10-04 2026-01-06 Qualcomm Incorporated Inter prediction coding with radius interpolation for predictive geometry-based point cloud compression
WO2023131045A1 (zh) * 2022-01-05 2023-07-13 维沃移动通信有限公司 帧间预测方法、设备及可读存储介质
US12597172B2 (en) * 2022-10-19 2026-04-07 Qualcomm Incorporated Decoding attribute values in geometry-based point cloud compression

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017164645A2 (ko) 2016-03-24 2017-09-28 인텔렉추얼디스커버리 주식회사 비디오 신호 부호화/복호화 방법 및 장치
WO2018052986A1 (en) 2016-09-16 2018-03-22 Qualcomm Incorporated Offset vector identification of temporal motion vector predictor
US20180098085A1 (en) 2016-10-05 2018-04-05 Arris Enterprises Llc Offset temporal motion vector predictor (tmvp)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4145275B2 (ja) 2004-07-27 2008-09-03 富士通株式会社 動きベクトル検出・補償装置
CN107105282B (zh) * 2010-12-14 2019-11-12 M&K控股株式会社 用于解码运动画面的设备
US20130114717A1 (en) * 2011-11-07 2013-05-09 Qualcomm Incorporated Generating additional merge candidates
JP2013223049A (ja) * 2012-04-13 2013-10-28 Sharp Corp 画像復号装置、および画像符号化装置
US10701366B2 (en) * 2017-02-21 2020-06-30 Qualcomm Incorporated Deriving motion vector information at a video decoder
WO2019009504A1 (ko) * 2017-07-07 2019-01-10 삼성전자 주식회사 적응적 움직임 벡터 해상도로 결정된 움직임 벡터의 부호화 장치 및 부호화 방법, 및 움직임 벡터의 복호화 장치 및 복호화 방법

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017164645A2 (ko) 2016-03-24 2017-09-28 인텔렉추얼디스커버리 주식회사 비디오 신호 부호화/복호화 방법 및 장치
WO2018052986A1 (en) 2016-09-16 2018-03-22 Qualcomm Incorporated Offset vector identification of temporal motion vector predictor
US20180098085A1 (en) 2016-10-05 2018-04-05 Arris Enterprises Llc Offset temporal motion vector predictor (tmvp)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Seungsoo Jeong, Min Woo Park, and Chanyul Kim，CE4 Ultimate motion vector expression in J0024 (Test 4.2.9)，Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11，JVET-K0115-v4，11th Meeting: Ljubljana, SI，2018年07月，pp.1-7

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CN118250473A (zh) 2024-06-25
KR20210052568A (ko) 2021-05-10
CN118488215A (zh) 2024-08-13
CN112806014A (zh) 2021-05-14
CA3296564A1 (en) 2026-03-02
JP2022502912A (ja) 2022-01-11
JP2025138854A (ja) 2025-09-25
JP2025011307A (ja) 2025-01-23
WO2020067700A1 (ko) 2020-04-02
CN118488217A (zh) 2024-08-13
CN112806014B (zh) 2024-06-21
EP3860127A4 (en) 2022-08-10
AU2025204622A1 (en) 2025-07-10
US12075062B2 (en) 2024-08-27
US20240275981A1 (en) 2024-08-15
CA3296569A1 (en) 2026-03-02
JP7577235B2 (ja) 2024-11-01
US20250175614A1 (en) 2025-05-29
CN118488212A (zh) 2024-08-13
CA3113860A1 (en) 2020-04-02
JP2024059861A (ja) 2024-05-01
AU2019350336B2 (en) 2025-06-05
US12537961B2 (en) 2026-01-27
CN118488216A (zh) 2024-08-13
ZA202101747B (en) 2022-07-27
US20250330608A1 (en) 2025-10-23
US20240373030A1 (en) 2024-11-07
US20240015300A1 (en) 2024-01-11
EP4708870A2 (en) 2026-03-11
AU2019350336A1 (en) 2021-05-13
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US20220078436A1 (en) 2022-03-10
SG11202102219YA (en) 2021-04-29
JP7711293B2 (ja) 2025-07-22
AU2025204597A1 (en) 2025-07-10
PH12021550491A1 (en) 2021-11-08
EP3860127A1 (en) 2021-08-04
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US20250175615A1 (en) 2025-05-29
AU2025204624A1 (en) 2025-07-10
US20250175613A1 (en) 2025-05-29
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