KR102568199B1 - 디코더 측 모션 벡터 정제를 위한 에러 표면 기반 서브 픽셀 정밀 정제 방법 - Google Patents

디코더 측 모션 벡터 정제를 위한 에러 표면 기반 서브 픽셀 정밀 정제 방법 Download PDF

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KR102568199B1
KR102568199B1 KR1020207035308A KR20207035308A KR102568199B1 KR 102568199 B1 KR102568199 B1 KR 102568199B1 KR 1020207035308 A KR1020207035308 A KR 1020207035308A KR 20207035308 A KR20207035308 A KR 20207035308A KR 102568199 B1 KR102568199 B1 KR 102568199B1
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motion vector
integer
vector displacement
pixel
displacement
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KR20210008046A (ko
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스리람 세투라만
지바 라즈 에이
사가 코테차
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후아웨이 테크놀러지 컴퍼니 리미티드
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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
    • H04N19/50—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
    • H04N19/533—Motion estimation using multistep search, e.g. 2D-log search or one-at-a-time search [OTS]
    • 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
    • H04N19/10—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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
    • 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
    • H04N19/523—Motion estimation or motion compensation with sub-pixel accuracy
    • 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
    • H04N19/56—Motion estimation with initialisation of the vector search, e.g. estimating a good candidate to initiate a search

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
KR1020207035308A 2018-07-02 2019-06-20 디코더 측 모션 벡터 정제를 위한 에러 표면 기반 서브 픽셀 정밀 정제 방법 Active KR102568199B1 (ko)

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IN201831024666 2018-07-02
IN201831024666 2018-07-02
PCT/CN2019/092114 WO2020007199A1 (en) 2018-07-02 2019-06-20 An error surface based sub-pixel accurate refinement method for decoder side motion vector refinement

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KR1020237027427A Active KR102701434B1 (ko) 2018-07-02 2019-06-20 디코더 측 모션 벡터 정제를 위한 에러 표면 기반 서브 픽셀 정밀 정제 방법

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JP (2) JP7652354B2 (enExample)
KR (2) KR102568199B1 (enExample)
CN (3) CN115052162A (enExample)
BR (1) BR112020026988A2 (enExample)
MX (1) MX2020013844A (enExample)
MY (1) MY201618A (enExample)
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GB2563943B (en) * 2017-06-30 2021-02-24 Canon Kk Method and apparatus for encoding or decoding video data in FRUC mode with reduced memory accesses
JP7242861B2 (ja) * 2018-09-04 2023-03-20 華為技術有限公司 二方向インター予測に適用される参照フレーム取得方法および装置
MY207229A (en) * 2019-02-28 2025-02-07 Huawei Tech Co Ltd An encoder, a decoder and corresponding methods for inter prediction
CN120455657A (zh) * 2019-03-08 2025-08-08 交互数字Vc控股公司 用于编码或解码的方法和装置
EP4557732A1 (en) * 2022-07-13 2025-05-21 LG Electronics Inc. Image coding/decoding method based on movement information refinement, method for transmitting bitstream, and recording medium storing bitstream
US20240223776A1 (en) * 2023-01-03 2024-07-04 Alibaba (China) Co., Ltd. Intra template matching prediction mode for motion prediction
US20250260831A1 (en) * 2024-02-14 2025-08-14 Tencent America LLC Implicit sub-pel position derivation for template matching-based intra prediction

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KR101403343B1 (ko) * 2007-10-04 2014-06-09 삼성전자주식회사 부화소 움직임 추정을 이용한 인터 예측 부호화, 복호화방법 및 장치
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US12003754B2 (en) 2024-06-04
WO2020007199A1 (en) 2020-01-09
JP2024038060A (ja) 2024-03-19
KR20210008046A (ko) 2021-01-20
CN115442619A (zh) 2022-12-06
KR20230122686A (ko) 2023-08-22
JP7652354B2 (ja) 2025-03-27
US12477142B2 (en) 2025-11-18
US20220132158A1 (en) 2022-04-28
JP2021530144A (ja) 2021-11-04
CN112292861B (zh) 2022-05-17
CN115052162A (zh) 2022-09-13
US20240364914A1 (en) 2024-10-31
US20210076059A1 (en) 2021-03-11
KR102701434B1 (ko) 2024-09-04
EP3794826A4 (en) 2021-03-24
EP3794826A1 (en) 2021-03-24
MX2020013844A (es) 2021-03-25
CN115442619B (zh) 2025-01-07
BR112020026988A2 (pt) 2021-03-30
US11310521B2 (en) 2022-04-19
SG11202011320SA (en) 2020-12-30
MY201618A (en) 2024-03-05
CN112292861A (zh) 2021-01-29

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