MX2021003205A - Un metodo y un aparato para codificacion y decodificacion de material de imagen/video digital. - Google Patents

Un metodo y un aparato para codificacion y decodificacion de material de imagen/video digital.

Info

Publication number
MX2021003205A
MX2021003205A MX2021003205A MX2021003205A MX2021003205A MX 2021003205 A MX2021003205 A MX 2021003205A MX 2021003205 A MX2021003205 A MX 2021003205A MX 2021003205 A MX2021003205 A MX 2021003205A MX 2021003205 A MX2021003205 A MX 2021003205A
Authority
MX
Mexico
Prior art keywords
transform
block
decoding
encoding
digital image
Prior art date
Application number
MX2021003205A
Other languages
English (en)
Inventor
Jani Lainema
Original Assignee
Nokia Technologies Oy
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 Nokia Technologies Oy filed Critical Nokia Technologies Oy
Publication of MX2021003205A publication Critical patent/MX2021003205A/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
    • H04N19/10—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
    • H04N19/102—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
    • H04N19/103—Selection of coding mode or of prediction mode
    • 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
    • H04N19/132—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
    • H04N19/157—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
    • H04N19/134—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
    • H04N19/167—Position within a video image, e.g. region of interest [ROI]
    • 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
    • H04N19/46—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
    • H04N19/60—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
    • H04N19/60—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]

Abstract

Las realizaciones se refieren a un método que comprende determinar un modo de codificación de un bloque de transformada, en donde un bloque de transformada comprende un conjunto de coeficientes de transformada; determinar una forma del bloque de transformada; determinar al menos un modo de transformada para un bloque basándose al menos parcialmente en dicho modo de codificación y dicha forma del bloque de transformada; aplicar el modo de transformada determinado a un conjunto de coeficientes de transformada para producir valores de muestra; y añadir dichos valores de muestra a un bloque de valores de muestra previstos. Las realizaciones también se refieren a equipo técnico para implementar el método.
MX2021003205A 2018-09-20 2019-09-13 Un metodo y un aparato para codificacion y decodificacion de material de imagen/video digital. MX2021003205A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20185782 2018-09-20
PCT/FI2019/050656 WO2020058568A1 (en) 2018-09-20 2019-09-13 A method and an apparatus for encoding and decoding of digital image/video material

Publications (1)

Publication Number Publication Date
MX2021003205A true MX2021003205A (es) 2021-05-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
MX2021003205A MX2021003205A (es) 2018-09-20 2019-09-13 Un metodo y un aparato para codificacion y decodificacion de material de imagen/video digital.

Country Status (9)

Country Link
US (1) US20220038702A1 (es)
EP (1) EP3854081A4 (es)
KR (1) KR102507024B1 (es)
CN (1) CN112889280B (es)
BR (1) BR112021005238A2 (es)
MX (1) MX2021003205A (es)
PH (1) PH12021550614A1 (es)
WO (1) WO2020058568A1 (es)
ZA (1) ZA202102521B (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA3131288A1 (en) * 2019-03-03 2020-09-10 Huawei Technologies Co., Ltd. An encoder, a decoder, and corresponding methods that are used for transform process
US11785254B2 (en) * 2020-05-29 2023-10-10 Tencent America LLC Implicit mode dependent primary transforms

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8571104B2 (en) * 2007-06-15 2013-10-29 Qualcomm, Incorporated Adaptive coefficient scanning in video coding
US9641846B2 (en) * 2010-10-22 2017-05-02 Qualcomm Incorporated Adaptive scanning of transform coefficients for video coding
US10390046B2 (en) * 2011-11-07 2019-08-20 Qualcomm Incorporated Coding significant coefficient information in transform skip mode
US9894386B2 (en) * 2012-04-12 2018-02-13 Goldpeak Innovations Inc. Transform method based on block information, and apparatus using said method
US10194158B2 (en) * 2012-09-04 2019-01-29 Qualcomm Incorporated Transform basis adjustment in scalable video coding
US9813737B2 (en) * 2013-09-19 2017-11-07 Blackberry Limited Transposing a block of transform coefficients, based upon an intra-prediction mode
JP6595711B2 (ja) * 2015-12-23 2019-10-23 華為技術有限公司 階層的分割内でのブロックレベルの変換選択および黙示的シグナリングを伴う変換コーディングのための方法および装置
EP4106333A1 (en) * 2016-02-12 2022-12-21 Samsung Electronics Co., Ltd. Image encoding method and apparatus, and image decoding method and apparatus
ES2817100B1 (es) * 2016-03-28 2022-04-13 Kt Corp Metodo y aparato para procesar senales de video
US11758136B2 (en) * 2016-06-24 2023-09-12 Electronics And Telecommunications Research Institute Method and apparatus for transform-based image encoding/decoding
US10972733B2 (en) * 2016-07-15 2021-04-06 Qualcomm Incorporated Look-up table for enhanced multiple transform
CN113873241B (zh) * 2016-08-31 2024-02-20 株式会社Kt 用于对视频进行解码的方法和用于对视频进行编码的方法
US10440394B2 (en) * 2016-09-08 2019-10-08 Google Llc Context adaptive scan order for entropy coding
EP3836543A4 (en) 2018-09-02 2021-06-16 Lg Electronics Inc. IMAGE ENCODING PROCESS ON THE BASIS OF A MULTIPLE TRANSFORMATION SELECTION AND DEVICE FOR IT

Also Published As

Publication number Publication date
KR20210059768A (ko) 2021-05-25
CN112889280B (zh) 2023-09-26
KR102507024B1 (ko) 2023-03-06
BR112021005238A2 (pt) 2021-06-15
PH12021550614A1 (en) 2021-10-04
WO2020058568A1 (en) 2020-03-26
US20220038702A1 (en) 2022-02-03
CN112889280A (zh) 2021-06-01
EP3854081A1 (en) 2021-07-28
ZA202102521B (en) 2024-01-31
EP3854081A4 (en) 2022-07-06

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