MX2022006209A - Metodos y aparatos sobre se?alizacion de transformadas y coeficientes. - Google Patents

Metodos y aparatos sobre se?alizacion de transformadas y coeficientes.

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Publication number
MX2022006209A
MX2022006209A MX2022006209A MX2022006209A MX2022006209A MX 2022006209 A MX2022006209 A MX 2022006209A MX 2022006209 A MX2022006209 A MX 2022006209A MX 2022006209 A MX2022006209 A MX 2022006209A MX 2022006209 A MX2022006209 A MX 2022006209A
Authority
MX
Mexico
Prior art keywords
zero
transform block
transform
index
zero coefficient
Prior art date
Application number
MX2022006209A
Other languages
English (en)
Inventor
Xianglin Wang
Xiaoyu Xiu
Yi-Wen Chen
Tsung-Chuan Ma
Hong-Jheng Jhu
Bing Yu
Original Assignee
Beijing Dajia Internet Information Tech Co Ltd
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 Beijing Dajia Internet Information Tech Co Ltd filed Critical Beijing Dajia Internet Information Tech Co Ltd
Publication of MX2022006209A publication Critical patent/MX2022006209A/es

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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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
    • 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
    • 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
    • H04N19/129—Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
    • 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
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence 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
    • H04N19/10—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
    • H04N19/169—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
    • H04N19/18—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 set of transform coefficients
    • 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
    • H04N19/186—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 colour or a chrominance component
    • 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • 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)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

Un aparato electrónico realiza un método de codificación y decodificación de datos de video. El método comprende recibir una corriente de bits que codifica un bloque de transformada, en donde el bloque de transformada incluye una región no nula y una región de puesta a cero; comprobar si hay algún coeficiente no nulo dentro de la región de puesta a cero; de acuerdo con una determinación de que no hay ningún coeficiente no nulo dentro de la región de puesta a cero del bloque de transformada: determinar un índice de orden de barrido de un último coeficiente no nulo del bloque de transformada a lo largo de una dirección de barrido; de acuerdo con una determinación de que el índice de orden de barrido del último coeficiente no nulo es mayor que un umbral predefinido: recibir, de la corriente de bits, un valor para el índice de selección de múltiple transformada (MTS); y aplicar transformadas respectivas para transformar los coeficientes del bloque de transformada en ambas direcciones, horizontal y vertical, basándose en el valor del índice de MTS.
MX2022006209A 2019-11-21 2020-11-23 Metodos y aparatos sobre se?alizacion de transformadas y coeficientes. MX2022006209A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962938890P 2019-11-21 2019-11-21
US202062959325P 2020-01-10 2020-01-10
PCT/US2020/061843 WO2021102424A1 (en) 2019-11-21 2020-11-23 Methods and apparatus on transform and coefficient signaling

Publications (1)

Publication Number Publication Date
MX2022006209A true MX2022006209A (es) 2022-06-22

Family

ID=75980942

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2022006209A MX2022006209A (es) 2019-11-21 2020-11-23 Metodos y aparatos sobre se?alizacion de transformadas y coeficientes.

Country Status (7)

Country Link
US (1) US12015798B2 (es)
EP (1) EP4062645A4 (es)
JP (3) JP7319468B2 (es)
KR (3) KR20240024337A (es)
CN (2) CN115004704A (es)
MX (1) MX2022006209A (es)
WO (1) WO2021102424A1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230112642A1 (en) * 2021-10-13 2023-04-13 Tencent America LLC Adaptive multiple transform set selection

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9154801B2 (en) * 2010-09-30 2015-10-06 Texas Instruments Incorporated Method and apparatus for diagonal scan and simplified coding of transform coefficients
CN103650510B (zh) * 2011-07-15 2018-05-22 谷歌技术控股有限责任公司 用于变换系数级编码的上下文建模技术
CN108259900B (zh) * 2013-01-16 2021-01-01 黑莓有限公司 针对视频的上下文自适应二进制熵编码的变换系数编码
US9215464B2 (en) * 2013-09-19 2015-12-15 Blackberry Limited Coding position data for the last non-zero transform coefficient in a coefficient group
US9432696B2 (en) * 2014-03-17 2016-08-30 Qualcomm Incorporated Systems and methods for low complexity forward transforms using zeroed-out coefficients
CN107211146A (zh) * 2014-11-21 2017-09-26 Vid拓展公司 一维变换模式和系数扫描顺序
US10631013B2 (en) * 2015-06-11 2020-04-21 Lg Electronics Inc. Method for re-positioning significant coefficient in image encoding/decoding process and device therefor
CN114866770A (zh) * 2015-08-07 2022-08-05 Lg 电子株式会社 视频编译系统中的帧间预测方法和装置
CN117412035A (zh) * 2016-08-31 2024-01-16 株式会社Kt 用于处理视频信号的方法和设备
CA3049196C (en) * 2017-01-03 2023-05-23 Lg Electronics Inc. Image processing method and apparatus therefor
US10244261B2 (en) * 2017-01-26 2019-03-26 Google Llc Transform coefficient coding using level maps
US10750181B2 (en) * 2017-05-11 2020-08-18 Mediatek Inc. Method and apparatus of adaptive multiple transforms for video coding
US20200068195A1 (en) * 2017-05-15 2020-02-27 Lg Electronics Inc. Frequency domain filtering method in image coding system, and device therefor
KR102389869B1 (ko) * 2017-07-04 2022-04-22 삼성전자주식회사 다중 코어 변환에 의한 비디오 복호화 방법 및 장치, 다중 코어 변환에 의한 비디오 부호화 방법 및 장치
AU2018311237B2 (en) * 2017-08-04 2021-07-29 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method and apparatus for configuring transform for video compression
WO2019152131A1 (en) * 2018-01-30 2019-08-08 Interdigital Vc Holdings, Inc. Methods and devices for picture encoding and decoding using multiple transforms
TWI731322B (zh) * 2018-03-29 2021-06-21 弗勞恩霍夫爾協會 變換組
US10491914B2 (en) * 2018-03-29 2019-11-26 Tencent America LLC Transform information prediction
JP7301951B2 (ja) * 2018-04-01 2023-07-03 エルジー エレクトロニクス インコーポレイティド 縮小された２次変換を用いて、ビデオ信号を処理する方法及び装置
WO2019203569A1 (ko) * 2018-04-17 2019-10-24 엘지전자 주식회사 전처리/후처리 행렬에 기초하는 근사 변환을 이용하여 비디오 신호를 처리하는 방법 및 장치
CN115379216A (zh) * 2018-06-03 2022-11-22 Lg电子株式会社 视频信号的解码、编码和发送设备及存储视频信号的介质
JP2021166320A (ja) * 2018-07-06 2021-10-14 ソニーグループ株式会社 画像処理装置および方法
KR102630190B1 (ko) * 2018-09-23 2024-01-25 엘지전자 주식회사 비디오 신호의 부호화/복호화 방법 및 이를 위한 장치
US11290731B2 (en) * 2019-05-22 2022-03-29 Tencent America LLC Method and apparatus for video coding
KR20220029586A (ko) * 2019-07-05 2022-03-08 엘지전자 주식회사 크로마 양자화 파라미터 데이터를 코딩하는 영상 디코딩 방법 및 그 장치

Also Published As

Publication number Publication date
CN116016915B (zh) 2024-04-23
JP7319468B2 (ja) 2023-08-01
US20220286708A1 (en) 2022-09-08
CN115004704A (zh) 2022-09-02
KR20240024338A (ko) 2024-02-23
EP4062645A1 (en) 2022-09-28
JP2022552580A (ja) 2022-12-16
JP2023139135A (ja) 2023-10-03
JP2023129533A (ja) 2023-09-14
EP4062645A4 (en) 2023-08-16
US12015798B2 (en) 2024-06-18
WO2021102424A1 (en) 2021-05-27
KR20220097913A (ko) 2022-07-08
CN116016915A (zh) 2023-04-25
KR20240024337A (ko) 2024-02-23
KR102638578B1 (ko) 2024-02-20

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