CL2021002369A1 - Selección de transformada implícita en codificación de video - Google Patents

Selección de transformada implícita en codificación de video

Info

Publication number
CL2021002369A1
CL2021002369A1 CL2021002369A CL2021002369A CL2021002369A1 CL 2021002369 A1 CL2021002369 A1 CL 2021002369A1 CL 2021002369 A CL2021002369 A CL 2021002369A CL 2021002369 A CL2021002369 A CL 2021002369A CL 2021002369 A1 CL2021002369 A1 CL 2021002369A1
Authority
CL
Chile
Prior art keywords
transform
block
current
video block
video encoding
Prior art date
Application number
CL2021002369A
Other languages
English (en)
Inventor
Marta Karczewicz
Hilmi Enes Egilmez
Amir Said
Vadim Seregin
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of CL2021002369A1 publication Critical patent/CL2021002369A1/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
    • H04N19/60—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
    • H04N19/119—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
    • H04N19/102—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
    • H04N19/12—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
    • H04N19/134—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
    • 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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
    • 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

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 método ejemplar incluye inferir, para un bloque de transformada actual de un bloque de video actual, un tipo de transformada de entre una pluralidad de tipos de transformada que incluye una o más transformadas de coseno discretas (DCTs) y una o más transformadas de seno discretas (DSTs), en donde la inferencia del tipo de transformada comprende: determinar un tamaño del bloque de transformada actual; determinar si el bloque de video actual es dividido utilizando división intra-subbloque (ISP); y en respuesta a determinar que el tamaño del bloque de transformada actual es menor que un umbral y que el bloque de video actual es dividido utilizando ISP, seleccionar una DST particular de una o más DSTs como el tipo de transformada seleccionado; transformar, utilizando el tipo de transformada seleccionado, el bloque de transformada actual para obtener un bloque de datos residuales reconstruidos para el bloque de video; y reconstruir, con base en los datos residuales reconstruidos para el bloque de video, el bloque de video.
CL2021002369A 2019-03-12 2021-09-10 Selección de transformada implícita en codificación de video CL2021002369A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962817397P 2019-03-12 2019-03-12
US16/815,920 US11539952B2 (en) 2019-03-12 2020-03-11 Implicit transform selection in video coding

Publications (1)

Publication Number Publication Date
CL2021002369A1 true CL2021002369A1 (es) 2022-06-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CL2021002369A CL2021002369A1 (es) 2019-03-12 2021-09-10 Selección de transformada implícita en codificación de video

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US (1) US11539952B2 (es)
EP (1) EP3939280A1 (es)
JP (1) JP2022525024A (es)
KR (1) KR20210135245A (es)
CN (1) CN113545053A (es)
AU (1) AU2020235621A1 (es)
BR (1) BR112021017451A2 (es)
CA (1) CA3131886A1 (es)
CL (1) CL2021002369A1 (es)
CO (1) CO2021011797A2 (es)
IL (1) IL285755A (es)
MX (1) MX2021010861A (es)
SG (1) SG11202109072PA (es)
TW (1) TW202041017A (es)
WO (1) WO2020186042A1 (es)

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CN112601083A (zh) * 2017-06-28 2021-04-02 华为技术有限公司 一种图像数据的编码、解码方法及装置
US11259052B2 (en) * 2018-07-16 2022-02-22 Qualcomm Incorporated Transform variations of multiple separable transform selection
US11159795B2 (en) * 2019-03-04 2021-10-26 Tencent America LLC Max transform size control
US11252410B2 (en) 2019-06-11 2022-02-15 Tencent America LLC Method and apparatus for video coding
CA3155433A1 (en) * 2019-09-21 2021-03-25 Lg Electronics Inc. Transform-based image coding method and device
US11575941B2 (en) * 2021-03-23 2023-02-07 Tencent America LLC Parallel processing in video coding
CN113286150B (zh) * 2021-05-17 2023-03-24 北京大学深圳研究生院 用于视频编解码的变换编码硬件实现方法、装置及设备
US20230052538A1 (en) * 2021-08-13 2023-02-16 Meta Platforms, Inc. Systems and methods for determining token rates within a rate-distortion optimization hardware pipeline

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US20130003856A1 (en) * 2011-07-01 2013-01-03 Samsung Electronics Co. Ltd. Mode-dependent transforms for residual coding with low latency
CN107547901B (zh) * 2012-04-16 2021-07-20 韩国电子通信研究院 用于解码视频信号的方法
US9380307B2 (en) * 2012-11-19 2016-06-28 Qualcomm Incorporated Method and system for intra base layer (BL) transform in video coding
US9432109B2 (en) * 2013-09-04 2016-08-30 Gilat Satellite Networks Ltd. Satellite communication terminal installation
US10306229B2 (en) * 2015-01-26 2019-05-28 Qualcomm Incorporated Enhanced multiple transforms for prediction residual
US10972733B2 (en) 2016-07-15 2021-04-06 Qualcomm Incorporated Look-up table for enhanced multiple transform
KR20230030054A (ko) 2018-02-09 2023-03-03 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 파티션 기반 인트라 코딩 개념
US10986340B2 (en) 2018-06-01 2021-04-20 Qualcomm Incorporated Coding adaptive multiple transform information for video coding
US11218694B2 (en) 2018-09-24 2022-01-04 Qualcomm Incorporated Adaptive multiple transform coding
US20220248017A1 (en) * 2019-03-06 2022-08-04 Electronics And Telecommunications Research Institute Image encoding/decoding method and apparatus, and recording medium storing bitstream
CN111669582B (zh) 2019-03-09 2022-05-20 杭州海康威视数字技术股份有限公司 进行编码和解码的方法、编码端、解码端和***

Also Published As

Publication number Publication date
IL285755A (en) 2021-10-31
CO2021011797A2 (es) 2021-09-30
WO2020186042A1 (en) 2020-09-17
KR20210135245A (ko) 2021-11-12
BR112021017451A2 (pt) 2021-11-16
CN113545053A (zh) 2021-10-22
MX2021010861A (es) 2021-10-22
US11539952B2 (en) 2022-12-27
AU2020235621A1 (en) 2021-09-23
US20200296370A1 (en) 2020-09-17
SG11202109072PA (en) 2021-09-29
JP2022525024A (ja) 2022-05-11
TW202041017A (zh) 2020-11-01
CA3131886A1 (en) 2020-09-17
EP3939280A1 (en) 2022-01-19

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