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MX2022003404A - Terminacion temprana armonizada en bdof y dmvr en codificacion de video. - Google Patents

Terminacion temprana armonizada en bdof y dmvr en codificacion de video.

Info

Publication number
MX2022003404A
MX2022003404A MX2022003404A MX2022003404A MX2022003404A MX 2022003404 A MX2022003404 A MX 2022003404A MX 2022003404 A MX2022003404 A MX 2022003404A MX 2022003404 A MX2022003404 A MX 2022003404A MX 2022003404 A MX2022003404 A MX 2022003404A
Authority
MX
Mexico
Prior art keywords
bdof
current
video coding
dmvr
harmonized
Prior art date
Application number
MX2022003404A
Other languages
English (en)
Inventor
Marta Karczewicz
Han Huang
Wei-Jung Chien
Chun-Chi Chen
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of MX2022003404A publication Critical patent/MX2022003404A/es

Links

Classifications

    • 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
    • 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
    • H04N19/557—Motion estimation characterised by stopping computation or iteration based on certain criteria, e.g. error magnitude being too large or early exit
    • 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
    • H04N19/169—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
    • H04N19/172—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 picture, frame or field
    • 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
    • H04N19/169—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
    • H04N19/50—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
    • H04N19/537—Motion estimation other than block-based
    • 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
    • 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
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)

Abstract

Un codificador de video se configura para usar flujo óptico bidireccional (BDOF) para determinar, con base en una primera imagen de referencia y una segunda imagen de referencia, un bloque de predicción para un bloque actual de una imagen actual de los datos de video. La primera imagen de referencia está a una primera distancia de recuento de orden de imágenes (POC) de la imagen actual. La segunda imagen de referencia está a una segunda distancia POC de la imagen actual. La primera distancia POC debe ser igual a la segunda distancia POC para que BDOF se utilice para determinar el bloque de predicción para el bloque actual. El codificador de video codifica, de acuerdo con la norma de codificación de video, el bloque actual con base en el bloque de predicción para el bloque actual.
MX2022003404A 2019-09-23 2020-09-23 Terminacion temprana armonizada en bdof y dmvr en codificacion de video. MX2022003404A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962904528P 2019-09-23 2019-09-23
US17/028,599 US20210092427A1 (en) 2019-09-23 2020-09-22 Harmonized early termination in bdof and dmvr in video coding
PCT/US2020/052238 WO2021061787A1 (en) 2019-09-23 2020-09-23 Harmonized early termination in bdof and dmvr in video coding

Publications (1)

Publication Number Publication Date
MX2022003404A true MX2022003404A (es) 2022-04-18

Family

ID=74881397

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2022003404A MX2022003404A (es) 2019-09-23 2020-09-23 Terminacion temprana armonizada en bdof y dmvr en codificacion de video.

Country Status (10)

Country Link
US (1) US20210092427A1 (es)
EP (1) EP4035380A1 (es)
JP (1) JP2022548142A (es)
KR (1) KR20220062521A (es)
CN (1) CN114402608A (es)
CA (1) CA3150772A1 (es)
MX (1) MX2022003404A (es)
PH (1) PH12022550382A1 (es)
TW (1) TW202114426A (es)
WO (1) WO2021061787A1 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102399229B1 (ko) * 2019-04-25 2022-05-17 베이징 다지아 인터넷 인포메이션 테크놀로지 컴퍼니 리미티드 광학 흐름에 의한 예측 미세화 방법 및 장치
JP2024540760A (ja) * 2021-11-30 2024-11-01 ベイジン、ターチア、インターネット、インフォメーション、テクノロジー、カンパニー、リミテッド ビデオ符号化における境界外条件を考慮した動き補償
WO2023114362A1 (en) * 2021-12-16 2023-06-22 Beijing Dajia Internet Information Technology Co., Ltd. Methods and devices for candidate derivation for affine merge mode in video coding
US12368879B2 (en) 2022-03-25 2025-07-22 Tencent America LLC Method and apparatus adaptive constraint on bi-prediction for out-of-boundary conditions
WO2024061363A1 (en) * 2022-09-22 2024-03-28 Mediatek Inc. Method and apparatus for video coding

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10958927B2 (en) * 2015-03-27 2021-03-23 Qualcomm Incorporated Motion information derivation mode determination in video coding
US11638027B2 (en) * 2016-08-08 2023-04-25 Hfi Innovation, Inc. Pattern-based motion vector derivation for video coding
EP3556096B1 (en) * 2016-12-22 2024-05-22 HFI Innovation Inc. Method and apparatus of motion refinement for video coding
US10491917B2 (en) * 2017-03-22 2019-11-26 Qualcomm Incorporated Decoder-side motion vector derivation
CN117241015A (zh) * 2018-09-13 2023-12-15 华为技术有限公司 用于视频译码中的条件性解码器侧运动矢量修正的装置和方法
KR102664876B1 (ko) * 2019-03-22 2024-05-10 로즈데일 다이나믹스 엘엘씨 Dmvr 및 bdof 기반의 인터 예측 방법 및 장치

Also Published As

Publication number Publication date
TW202114426A (zh) 2021-04-01
CN114402608A (zh) 2022-04-26
PH12022550382A1 (en) 2023-12-04
WO2021061787A1 (en) 2021-04-01
KR20220062521A (ko) 2022-05-17
US20210092427A1 (en) 2021-03-25
EP4035380A1 (en) 2022-08-03
JP2022548142A (ja) 2022-11-16
CA3150772A1 (en) 2021-04-01

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