MX2022005517A - Metodo de codificacion de imagenes a base de transformacion y dispositivo para el mismo. - Google Patents

Metodo de codificacion de imagenes a base de transformacion y dispositivo para el mismo.

Info

Publication number
MX2022005517A
MX2022005517A MX2022005517A MX2022005517A MX2022005517A MX 2022005517 A MX2022005517 A MX 2022005517A MX 2022005517 A MX2022005517 A MX 2022005517A MX 2022005517 A MX2022005517 A MX 2022005517A MX 2022005517 A MX2022005517 A MX 2022005517A
Authority
MX
Mexico
Prior art keywords
current block
transform
coding method
image coding
based image
Prior art date
Application number
MX2022005517A
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 MX2022005517A publication Critical patent/MX2022005517A/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
    • 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
    • H04N19/12—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
    • H04N19/132—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
    • H04N19/10—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
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with 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
    • H04N19/70—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
    • 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/96—Tree coding, e.g. quad-tree coding

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)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

Un método de decodificación de imágenes de acuerdo con el presente documento comprende el paso de derivar coeficientes de transformación modificados, en donde el paso de derivar los coeficientes de transformación modificados comprende el paso de analizar un índice de LFNST sobre la base de una variable que indique si se aplica una ISP a un bloque actual o si un coeficiente efectivo está presente en un componente de DC del bloque actual, de acuerdo con el tipo de árbol del bloque actual, en donde la variable puede derivarse sobre la base de un valor de indicador de salto de transformación individual para un componente de color del bloque actual.
MX2022005517A 2019-11-13 2020-11-13 Metodo de codificacion de imagenes a base de transformacion y dispositivo para el mismo. MX2022005517A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962935053P 2019-11-13 2019-11-13
US201962935082P 2019-11-13 2019-11-13
PCT/KR2020/015996 WO2021096290A1 (ko) 2019-11-13 2020-11-13 변환에 기반한 영상 코딩 방법 및 그 장치

Publications (1)

Publication Number Publication Date
MX2022005517A true MX2022005517A (es) 2022-07-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
MX2022005517A MX2022005517A (es) 2019-11-13 2020-11-13 Metodo de codificacion de imagenes a base de transformacion y dispositivo para el mismo.

Country Status (9)

Country Link
US (1) US20220394258A1 (es)
EP (1) EP4060994A4 (es)
JP (2) JP7461473B2 (es)
KR (1) KR20220070245A (es)
CN (1) CN114946189A (es)
AU (2) AU2020382299B2 (es)
CA (2) CA3220041A1 (es)
MX (1) MX2022005517A (es)
WO (1) WO2021096290A1 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2019275552B2 (en) * 2019-12-03 2022-10-13 Canon Kabushiki Kaisha Method, apparatus and system for encoding and decoding a coding tree unit
AU2019275553B2 (en) * 2019-12-03 2022-10-06 Canon Kabushiki Kaisha Method, apparatus and system for encoding and decoding a coding tree unit
CN114830655B (zh) * 2019-12-12 2023-08-18 寰发股份有限公司 视频编解码的方法与装置
EP4087255A4 (en) 2020-01-02 2024-01-17 Lg Electronics Inc. METHOD AND APPARATUS FOR DECODING IMAGE INFORMATION INCLUDING AN IMAGE HEAD
EP4109902A4 (en) 2020-02-21 2023-03-22 LG Electronics, Inc. TRANSFORM-BASED IMAGE CODING METHOD AND RELATED DEVICE

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CA2114278A1 (en) * 1994-01-26 1995-07-27 J. Douglas Fletcher Data monitoring apparatus and method
JP3990130B2 (ja) * 2001-09-25 2007-10-10 独立行政法人科学技術振興機構 並列計算方法
EP2154894A1 (en) * 2008-08-15 2010-02-17 Thomson Licensing Video coding with coding of the locations of significant coefficients in a block of coefficients
CN102291000B (zh) * 2011-08-29 2014-09-10 上海新进半导体制造有限公司 开关电源集成电路
CN102867187B (zh) * 2012-07-04 2015-05-27 西安电子科技大学 Nsst域mrf与自适应阈值融合的遥感图像变化检测方法
US10645399B2 (en) * 2013-07-23 2020-05-05 Intellectual Discovery Co., Ltd. Method and apparatus for encoding/decoding image
US10491922B2 (en) * 2015-09-29 2019-11-26 Qualcomm Incorporated Non-separable secondary transform for video coding
CN109076243B (zh) * 2016-05-04 2022-01-25 夏普株式会社 用于对变换数据进行编码的***和方法
CA3142941C (en) * 2017-01-03 2024-06-18 Lg Electronics Inc. Image processing method and apparatus therefor
US11252420B2 (en) * 2017-12-15 2022-02-15 Lg Electronics Inc. Image coding method on basis of secondary transform and device therefor
KR101969933B1 (ko) * 2018-05-28 2019-04-17 삼성전자주식회사 레지듀얼 블록의 부호화 방법 및 장치, 복호화 방법 및 장치
WO2021096293A1 (ko) * 2019-11-13 2021-05-20 엘지전자 주식회사 변환에 기반한 영상 코딩 방법 및 그 장치
WO2021096295A1 (ko) * 2019-11-13 2021-05-20 엘지전자 주식회사 변환에 기반한 영상 코딩 방법 및 그 장치
AU2019275552B2 (en) * 2019-12-03 2022-10-13 Canon Kabushiki Kaisha Method, apparatus and system for encoding and decoding a coding tree unit

Also Published As

Publication number Publication date
CA3161641A1 (en) 2021-05-20
CA3161641C (en) 2023-12-19
EP4060994A4 (en) 2023-12-13
AU2024203191A1 (en) 2024-05-30
CA3220041A1 (en) 2021-05-20
CN114946189A (zh) 2022-08-26
JP7461473B2 (ja) 2024-04-03
JP2023501621A (ja) 2023-01-18
AU2020382299A1 (en) 2022-06-02
JP2024079763A (ja) 2024-06-11
WO2021096290A1 (ko) 2021-05-20
EP4060994A1 (en) 2022-09-21
US20220394258A1 (en) 2022-12-08
KR20220070245A (ko) 2022-05-30
AU2020382299B2 (en) 2024-02-15

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