MX2022003322A - Dispositivo y metodo de codificacion de imagenes a base de transformacion. - Google Patents

Dispositivo y metodo de codificacion de imagenes a base de transformacion.

Info

Publication number
MX2022003322A
MX2022003322A MX2022003322A MX2022003322A MX2022003322A MX 2022003322 A MX2022003322 A MX 2022003322A MX 2022003322 A MX2022003322 A MX 2022003322A MX 2022003322 A MX2022003322 A MX 2022003322A MX 2022003322 A MX2022003322 A MX 2022003322A
Authority
MX
Mexico
Prior art keywords
transform
deriving
sub
residual sample
coding method
Prior art date
Application number
MX2022003322A
Other languages
English (en)
Inventor
Jaehyun Lim
Moonmo Koo
Seunghwan Kim
Original Assignee
Lg Electronics 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 Lg Electronics Inc filed Critical Lg Electronics Inc
Publication of MX2022003322A publication Critical patent/MX2022003322A/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
    • H04N19/10—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
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • 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
    • 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
    • H04N19/102—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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • 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
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • 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
    • H04N19/70—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)
  • Compression Of Band Width Or Redundancy In Fax (AREA)

Abstract

Un método de decodificación de imágenes de acuerdo con el presente documento comprende un paso de derivación de una muestra residual, en donde el paso de derivación de la muestra residual comprende los pasos de: cuando un bloque actual se divida en bloques de subdivisión, derivar un núcleo de transformación para una transformación primaria inversa aplicada a un bloque de subdivisión sobre la base de una longitud horizontal o vertical del bloque de subdivisión; y derivar la muestra residual a partir de coeficientes de transformación sobre la base del núcleo de transformación.
MX2022003322A 2019-09-21 2020-09-21 Dispositivo y metodo de codificacion de imagenes a base de transformacion. MX2022003322A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962903823P 2019-09-21 2019-09-21
US201962904636P 2019-09-23 2019-09-23
PCT/KR2020/012707 WO2021054798A1 (ko) 2019-09-21 2020-09-21 변환에 기반한 영상 코딩 방법 및 그 장치

Publications (1)

Publication Number Publication Date
MX2022003322A true MX2022003322A (es) 2022-05-06

Family

ID=74884126

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2022003322A MX2022003322A (es) 2019-09-21 2020-09-21 Dispositivo y metodo de codificacion de imagenes a base de transformacion.

Country Status (7)

Country Link
US (1) US20220417518A1 (es)
EP (1) EP4017008B1 (es)
KR (1) KR20220047628A (es)
CN (1) CN114586353A (es)
CA (1) CA3155433A1 (es)
MX (1) MX2022003322A (es)
WO (1) WO2021054798A1 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11902531B2 (en) * 2021-04-12 2024-02-13 Qualcomm Incorporated Low frequency non-separable transform for video coding
WO2024085565A1 (ko) * 2022-10-16 2024-04-25 엘지전자 주식회사 영상 인코딩/디코딩 방법 및 장치, 그리고 비트스트림을 저장한 기록 매체
WO2024085566A1 (ko) * 2022-10-16 2024-04-25 엘지전자 주식회사 영상 인코딩/디코딩 방법 및 장치, 그리고 비트스트림을 저장한 기록 매체

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100095992A (ko) * 2009-02-23 2010-09-01 한국과학기술원 비디오 부호화에서의 분할 블록 부호화 방법, 비디오 복호화에서의 분할 블록 복호화 방법 및 이를 구현하는 기록매체
MX2014004851A (es) * 2011-10-18 2014-05-28 Kt Corp Metodo para codificar imagen, metodo para decodificar imagen, codificador de imagen y decodificador de imagen.
US9247254B2 (en) * 2011-10-27 2016-01-26 Qualcomm Incorporated Non-square transforms in intra-prediction video coding
CN108200439B (zh) * 2013-06-14 2020-08-21 浙江大学 提高数字信号变换性能的方法及数字信号变换方法和装置
EP3432578A4 (en) * 2016-03-24 2019-11-20 LG Electronics Inc. METHOD AND APPARATUS FOR INTER-PREDICTION IN A VIDEO CODING SYSTEM
FR3050598B1 (fr) * 2016-04-26 2020-11-06 Bcom Procede de decodage d'une image numerique, procede de codage, dispositifs, et programmes d'ordinateurs associes
WO2017222334A1 (ko) * 2016-06-24 2017-12-28 한국전자통신연구원 변환 기반의 영상 부호화/복호화 방법 및 장치
WO2019009618A1 (ko) * 2017-07-04 2019-01-10 삼성전자 주식회사 영상 부호화 방법 및 장치, 영상 복호화 방법 및 장치
JP7009632B2 (ja) * 2017-12-15 2022-01-25 エルジー エレクトロニクス インコーポレイティド 変換に基づく映像コーディング方法及びその装置
MX2020006623A (es) * 2017-12-21 2020-09-14 Lg Electronics Inc Metodo para codificar imagen con base en transformacion selectiva y dispositivo para el mismo.
US11539952B2 (en) * 2019-03-12 2022-12-27 Qualcomm Incorporated Implicit transform selection in video coding
CN114223208B (zh) * 2019-08-17 2023-12-29 北京字节跳动网络技术有限公司 为视频中的缩减二次变换的边信息的上下文建模
WO2021071183A1 (ko) * 2019-10-06 2021-04-15 현대자동차주식회사 현재블록의 변환계수들을 역변환하는 방법 및 장치
US11924471B2 (en) * 2020-11-12 2024-03-05 Qualcomm Incorporated Context-based transform index signaling in video coding
US20220345690A1 (en) * 2021-04-16 2022-10-27 Tencent America LLC Harmonized Design Among Multiple Reference Line Intra Prediction, Transform Partitioning and Transform Kernels

Also Published As

Publication number Publication date
US20220417518A1 (en) 2022-12-29
KR20220047628A (ko) 2022-04-18
EP4017008A4 (en) 2022-11-09
CA3155433A1 (en) 2021-03-25
EP4017008B1 (en) 2024-06-19
WO2021054798A1 (ko) 2021-03-25
EP4017008A1 (en) 2022-06-22
CN114586353A (zh) 2022-06-03

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