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MX393989B - Se?alizacion de derivacion de diferencia de vector de movimiento - Google Patents

Se?alizacion de derivacion de diferencia de vector de movimiento

Info

Publication number
MX393989B
MX393989B MX2021014221A MX2021014221A MX393989B MX 393989 B MX393989 B MX 393989B MX 2021014221 A MX2021014221 A MX 2021014221A MX 2021014221 A MX2021014221 A MX 2021014221A MX 393989 B MX393989 B MX 393989B
Authority
MX
Mexico
Prior art keywords
motion vector
vector difference
flag
video decoder
signaling
Prior art date
Application number
MX2021014221A
Other languages
English (en)
Other versions
MX2021014221A (es
Inventor
Chih-Wei Hsu
Man-Shu Chiang
Tzu-Der Chuang
Original Assignee
Hfi Innovation 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 Hfi Innovation Inc filed Critical Hfi Innovation Inc
Publication of MX2021014221A publication Critical patent/MX2021014221A/es
Publication of MX393989B publication Critical patent/MX393989B/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
    • 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
    • H04N19/10—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
    • H04N19/513—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
    • H04N19/50—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
    • 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
    • H04N19/70—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

Un decodificador de video recibe datos para que un bloque de pixeles sea decodificado como un bloque actual de una imagen actual de un video; cuando el bloque actual es codificado utilizando inter-modo y predicción bi-direccional, el decodificador de video recibe una primera diferencia de vector de movimiento y determina una segunda diferencia de vector de movimiento con base en un primer indicador o un segundo indicador; cuando el primer indicador es falso, el decodificador de video utiliza el segundo indicador para determinar si se establece la segunda diferencia de vector de movimiento a un valor opuesto al de la primera diferencia de vector de movimiento. Cuando el primer indicador es verdadero, el decodificador de video establece la segunda diferencia de vector de movimiento a cero; el decodificador de video reconstruye el bloque actual utilizando información de movimiento con base en la primera diferencia de vector de movimiento y la segunda diferencia de vector de movimiento para ejecutar inter predicción.
MX2021014221A 2019-05-22 2020-05-22 Se?alizacion de derivacion de diferencia de vector de movimiento MX393989B (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962851140P 2019-05-22 2019-05-22
US16/880,344 US11109064B2 (en) 2019-05-22 2020-05-21 Signaling of motion vector difference derivation
PCT/CN2020/091790 WO2020233702A1 (en) 2019-05-22 2020-05-22 Signaling of motion vector difference derivation

Publications (2)

Publication Number Publication Date
MX2021014221A MX2021014221A (es) 2022-07-15
MX393989B true MX393989B (es) 2025-03-24

Family

ID=73456421

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2021014221A MX393989B (es) 2019-05-22 2020-05-22 Se?alizacion de derivacion de diferencia de vector de movimiento

Country Status (6)

Country Link
US (1) US11109064B2 (es)
EP (1) EP3970375A4 (es)
CN (1) CN113853795B (es)
MX (1) MX393989B (es)
TW (2) TWI752897B (es)
WO (1) WO2020233702A1 (es)

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Publication number Priority date Publication date Assignee Title
TWI723430B (zh) 2018-06-19 2021-04-01 大陸商北京字節跳動網絡技術有限公司 不同精度的多個候選
JP7212150B2 (ja) 2018-09-19 2023-01-24 北京字節跳動網絡技術有限公司 適応動きベクトル解像度によるアフィンモードへの構文の使用
CN118118659A (zh) 2019-01-31 2024-05-31 北京字节跳动网络技术有限公司 记录仿射模式自适应运动矢量分辨率的上下文
CN113366851B (zh) * 2019-01-31 2025-10-21 北京字节跳动网络技术有限公司 对称运动矢量差编解码模式的快速算法
CN119729011A (zh) * 2019-06-13 2025-03-28 Lg电子株式会社 图像编码/解码方法、发送图像的数据的方法和存储介质
KR102704384B1 (ko) * 2019-06-14 2024-09-09 엘지전자 주식회사 움직임 벡터를 이용한 영상 코딩 방법 및 장치
LT3975561T (lt) * 2019-06-14 2025-10-10 Išoriniu prognozavimu pagrįstas vaizdo kodavimo ir dekodavimo būdas
US20200402546A1 (en) * 2019-06-24 2020-12-24 Seagate Technology Llc Reducing base deck porosity
JP7342153B2 (ja) * 2019-06-24 2023-09-11 エルジー エレクトロニクス インコーポレイティド 動きベクトルを用いた画像コーディング方法および装置
CN120378633A (zh) * 2019-06-24 2025-07-25 Lg电子株式会社 解码设备、编码设备和数据发送设备
US11943448B2 (en) * 2021-11-22 2024-03-26 Tencent America LLC Joint coding of motion vector difference

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1306821C (zh) * 2004-07-30 2007-03-21 联合信源数字音视频技术（北京）有限公司 一种视频图像中运动矢量预测生成的方法及其装置
US10536701B2 (en) * 2011-07-01 2020-01-14 Qualcomm Incorporated Video coding using adaptive motion vector resolution
US9420285B2 (en) * 2012-04-12 2016-08-16 Qualcomm Incorporated Inter-layer mode derivation for prediction in scalable video coding
US10021414B2 (en) 2013-01-04 2018-07-10 Qualcomm Incorporated Bitstream constraints and motion vector restriction for inter-view or inter-layer reference pictures
US9609347B2 (en) * 2013-04-04 2017-03-28 Qualcomm Incorporated Advanced merge mode for three-dimensional (3D) video coding
CN105453563B (zh) * 2013-07-30 2019-08-16 株式会社Kt 支持多个层的图像编码和解码方法以及使用该方法的装置
KR20160105861A (ko) * 2014-01-02 2016-09-07 브이아이디 스케일, 인크. 혼합된 인터레이스 및 프로그레시브 콘텐트에 의한 스케일러블 비디오 코딩을 위한 방법들, 및 시스템들
US20170244964A1 (en) * 2016-02-23 2017-08-24 Mediatek Inc. Method and Apparatus of Flexible Block Partition for Video Coding
US10462462B2 (en) * 2016-09-29 2019-10-29 Qualcomm Incorporated Motion vector difference coding technique for video coding
US20190007699A1 (en) 2017-06-28 2019-01-03 Futurewei Technologies, Inc. Decoder Side Motion Vector Derivation in Video Coding

Also Published As

Publication number Publication date
TW202201964A (zh) 2022-01-01
US11109064B2 (en) 2021-08-31
US20200374551A1 (en) 2020-11-26
WO2020233702A1 (en) 2020-11-26
CN113853795B (zh) 2025-08-19
EP3970375A1 (en) 2022-03-23
CN113853795A (zh) 2021-12-28
TW202101991A (zh) 2021-01-01
TWI743801B (zh) 2021-10-21
MX2021014221A (es) 2022-07-15
TWI752897B (zh) 2022-01-11
EP3970375A4 (en) 2023-05-24

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