MX2021002084A - Codificador, decodificador, metodo de codificacion y metodo de decodificacion. - Google Patents

Codificador, decodificador, metodo de codificacion y metodo de decodificacion.

Info

Publication number
MX2021002084A
MX2021002084A MX2021002084A MX2021002084A MX2021002084A MX 2021002084 A MX2021002084 A MX 2021002084A MX 2021002084 A MX2021002084 A MX 2021002084A MX 2021002084 A MX2021002084 A MX 2021002084A MX 2021002084 A MX2021002084 A MX 2021002084A
Authority
MX
Mexico
Prior art keywords
motion vector
encoding
decoding
difference
deriving
Prior art date
Application number
MX2021002084A
Other languages
English (en)
Inventor
Chong Soon Lim
hai wei Sun
Tadamasa Toma
Takahiro Nishi
Kiyofumi Abe
Han Boon Teo
jing ya Li
Ru Ling Liao
Original Assignee
Panasonic Ip Corp America
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 Panasonic Ip Corp America filed Critical Panasonic Ip Corp America
Publication of MX2021002084A publication Critical patent/MX2021002084A/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
    • H04N19/50—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
    • H04N19/109—Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes
    • 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
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
    • 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
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/43—Hardware specially adapted for motion estimation or compensation
    • H04N19/433—Hardware specially adapted for motion estimation or compensation characterised by techniques for memory access
    • 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
    • H04N19/527—Global motion vector estimation
    • 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)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Error Detection And Correction (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

Un codificador (100) incluye: la circuitería (a1); y la memoria (a2) acoplada a la circuitería (a1). En funcionamiento, la circuitería (a1): deriva un vector de movimiento base que se usará en la predicción de un bloque actual que se codificará; deriva un primer vector de movimiento diferente del vector de movimiento base; deriva una diferencia de vector de movimiento basada en una diferencia entre el vector de movimiento base y el primer vector de movimiento; determina si la diferencia del vector de movimiento es mayor que un umbral; modifica el primer vector de movimiento cuando se determina que la diferencia del vector de movimiento es mayor que el umbral, y no modifica el primer vector de movimiento cuando se determina que la diferencia del vector de movimiento no es mayor que el umbral; y codifica el bloque actual usando el primer vector de movimiento modificado o el primer vector de movimiento no modificado.
MX2021002084A 2018-08-27 2019-08-09 Codificador, decodificador, metodo de codificacion y metodo de decodificacion. MX2021002084A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201862723302P 2018-08-27 2018-08-27
PCT/JP2019/031584 WO2020045050A1 (ja) 2018-08-27 2019-08-09 符号化装置、復号装置、符号化方法及び復号方法

Publications (1)

Publication Number Publication Date
MX2021002084A true MX2021002084A (es) 2021-04-28

Family

ID=69644991

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2021002084A MX2021002084A (es) 2018-08-27 2019-08-09 Codificador, decodificador, metodo de codificacion y metodo de decodificacion.

Country Status (8)

Country Link
US (3) US11212549B2 (es)
JP (2) JP7461885B2 (es)
KR (1) KR20210046679A (es)
CN (1) CN112640465A (es)
BR (1) BR112021001245A2 (es)
MX (1) MX2021002084A (es)
TW (2) TWI813740B (es)
WO (1) WO2020045050A1 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
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KR102658887B1 (ko) * 2018-10-10 2024-04-18 삼성전자주식회사 움직임 벡터 차분값을 이용한 비디오 부호화 및 복호화 방법, 및 움직임 정보의 부호화 및 복호화 장치
WO2020130020A1 (ja) * 2018-12-21 2020-06-25 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、符号化方法及び復号方法
US20220264146A1 (en) * 2019-07-01 2022-08-18 Interdigital Vc Holdings France, Sas Bi-prediction refinement in affine with optical flow

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JP2914448B2 (ja) * 1997-06-25 1999-06-28 日本電信電話株式会社 動きベクトル予測符号化方法および動きベクトル復号方法、予測符号化装置および復号装置、並びに、動きベクトルの予測符号化プログラムおよび復号プログラムを記録した記録媒体
JP2000209594A (ja) * 1999-01-18 2000-07-28 Mitsubishi Electric Corp 画像符号化装置
JP2002325258A (ja) * 2001-04-25 2002-11-08 Nec Corp 画像符号化装置及びそれに用いる画像符号化方法
AU2002347635B2 (en) * 2001-11-29 2008-04-24 Godo Kaisha Ip Bridge 1 Coding distortion removal method and video encoding end decoding methods
KR100763917B1 (ko) * 2006-06-21 2007-10-05 삼성전자주식회사 고속으로 움직임을 추정하는 방법 및 장치
CN102474647B (zh) * 2010-05-25 2015-08-19 松下电器（美国）知识产权公司 图像编码装置、图像编码方法以及集成电路
JP5798467B2 (ja) * 2011-12-07 2015-10-21 ルネサスエレクトロニクス株式会社 符号化タイプ決定装置及び動画像符号化装置、符号化タイプ決定方法及び動画像符号化方法、プログラム
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CN102630011A (zh) * 2012-03-31 2012-08-08 浙江师范大学 一种视频传感器网络中的压缩感知编解码方法及系统
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WO2019199127A1 (ko) * 2018-04-12 2019-10-17 삼성전자 주식회사 부호화 방법 및 그 장치, 복호화 방법 및 그 장치

Also Published As

Publication number Publication date
WO2020045050A1 (ja) 2020-03-05
US11212549B2 (en) 2021-12-28
TW202402060A (zh) 2024-01-01
JP7461885B2 (ja) 2024-04-04
KR20210046679A (ko) 2021-04-28
TW202025766A (zh) 2020-07-01
US20230412832A1 (en) 2023-12-21
US20220078472A1 (en) 2022-03-10
CN112640465A (zh) 2021-04-09
TWI831724B (zh) 2024-02-01
JP2023060057A (ja) 2023-04-27
JPWO2020045050A1 (ja) 2021-08-10
TWI813740B (zh) 2023-09-01
BR112021001245A2 (pt) 2021-04-27
US11785243B2 (en) 2023-10-10
US20210105500A1 (en) 2021-04-08

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