MX2021012502A - Codificador, decodificador, metodo de codificacion y metodo de decodificacion. - Google Patents

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

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Publication number
MX2021012502A
MX2021012502A MX2021012502A MX2021012502A MX2021012502A MX 2021012502 A MX2021012502 A MX 2021012502A MX 2021012502 A MX2021012502 A MX 2021012502A MX 2021012502 A MX2021012502 A MX 2021012502A MX 2021012502 A MX2021012502 A MX 2021012502A
Authority
MX
Mexico
Prior art keywords
parameter
sum
coding
derives
respect
Prior art date
Application number
MX2021012502A
Other languages
English (en)
Inventor
Yusuke Kato
Tadamasa Toma
Takahiro Nishi
Kiyofumi Abe
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 MX2021012502A publication Critical patent/MX2021012502A/es

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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
    • H04N19/10—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
    • H04N19/10—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
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/11—Selection of coding mode or of prediction mode among a plurality of spatial 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
    • H04N19/102—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
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • 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
    • H04N19/182—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 a pixel
    • 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
    • H04N19/50—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
    • H04N19/573—Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
    • 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)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

Un codificador (100) incluye circuitería y memoria conectada a la circuitería. La circuitería, en operación: deriva, como un primer parámetro, una suma total de valores absolutos de sumas de valores de gradiente horizontal respectivamente para pares de posiciones de píxeles relativas; deriva, como un segundo parámetro, una suma total de valores absolutos de sumas de valores de gradiente vertical respectivamente para los pares de posiciones de píxeles relativas; deriva, como un tercer parámetro, una suma total de valores de diferencia de píxel relacionados horizontales respectivamente para los pares de posiciones de píxeles relativas; deriva, como un cuarto parámetro, una suma total de valores de diferencia de píxel relacionados verticales respectivamente para los pares de posiciones de píxeles relativas; deriva, como quinto parámetro, una suma total de sumas relacionadas verticales de valores de gradiente horizontal respectivamente para los pares de posiciones de píxeles relativas; y genera una imagen de predicción que se usa para codificar el bloque actual por medio del uso del primer, segundo, tercero, cuarto y quinto parámetros.
MX2021012502A 2019-06-21 2020-06-15 Codificador, decodificador, metodo de codificacion y metodo de decodificacion. MX2021012502A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962864728P 2019-06-21 2019-06-21
PCT/JP2020/023329 WO2020255903A1 (ja) 2019-06-21 2020-06-15 符号化装置、復号装置、符号化方法、および復号方法

Publications (1)

Publication Number Publication Date
MX2021012502A true MX2021012502A (es) 2021-11-12

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MX2021012502A MX2021012502A (es) 2019-06-21 2020-06-15 Codificador, decodificador, metodo de codificacion y metodo de decodificacion.

Country Status (11)

Country Link
US (3) US11095883B2 (es)
EP (1) EP3989575A4 (es)
KR (1) KR20220022486A (es)
CN (1) CN114128293A (es)
AU (1) AU2020298425A1 (es)
BR (1) BR112021017765A2 (es)
CA (1) CA3140379A1 (es)
MX (1) MX2021012502A (es)
SG (1) SG11202112656UA (es)
TW (1) TW202106002A (es)
WO (1) WO2020255903A1 (es)

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WO2020084476A1 (en) 2018-10-22 2020-04-30 Beijing Bytedance Network Technology Co., Ltd. Sub-block based prediction
CN111083492B (zh) 2018-10-22 2024-01-12 北京字节跳动网络技术有限公司 双向光流中的梯度计算
KR20240007302A (ko) 2018-11-12 2024-01-16 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 인터 및 인트라 통합 예측의 단순화
CN117319644A (zh) 2018-11-20 2023-12-29 北京字节跳动网络技术有限公司 基于部分位置的差计算
WO2020103870A1 (en) 2018-11-20 2020-05-28 Beijing Bytedance Network Technology Co., Ltd. Inter prediction with refinement in video processing
WO2020121879A1 (ja) * 2018-12-10 2020-06-18 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、および復号方法
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KR20230169434A (ko) * 2019-04-02 2023-12-15 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 디코더 측 움직임 벡터 유도

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Also Published As

Publication number Publication date
US11095883B2 (en) 2021-08-17
BR112021017765A2 (pt) 2022-04-26
EP3989575A1 (en) 2022-04-27
AU2020298425A2 (en) 2022-01-06
US20210337185A1 (en) 2021-10-28
CA3140379A1 (en) 2020-12-24
WO2020255903A1 (ja) 2020-12-24
TW202106002A (zh) 2021-02-01
CN114128293A (zh) 2022-03-01
US20210168357A1 (en) 2021-06-03
AU2020298425A1 (en) 2021-12-23
JPWO2020255903A1 (es) 2020-12-24
EP3989575A4 (en) 2022-09-14
KR20220022486A (ko) 2022-02-25
US11689714B2 (en) 2023-06-27
SG11202112656UA (en) 2021-12-30
US20230283771A1 (en) 2023-09-07

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