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MX2021015312A - Codificador, decodificador, metodos y programas informaticos con una escala mejorada basada en transformacion. - Google Patents

Codificador, decodificador, metodos y programas informaticos con una escala mejorada basada en transformacion.

Info

Publication number
MX2021015312A
MX2021015312A MX2021015312A MX2021015312A MX2021015312A MX 2021015312 A MX2021015312 A MX 2021015312A MX 2021015312 A MX2021015312 A MX 2021015312A MX 2021015312 A MX2021015312 A MX 2021015312A MX 2021015312 A MX2021015312 A MX 2021015312A
Authority
MX
Mexico
Prior art keywords
decoder
block
encoder
methods
computer programs
Prior art date
Application number
MX2021015312A
Other languages
English (en)
Inventor
Heiko Schwarz
Thomas Wiegand
Detlev Marpe
Benjamin Bross
Phan Hoang Tung Nguyen
Original Assignee
Fraunhofer Ges Forschung
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 Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of MX2021015312A publication Critical patent/MX2021015312A/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
    • H04N19/124—Quantisation
    • H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
    • 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
    • H04N19/124—Quantisation
    • 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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/147—Data rate or code amount at the encoder output according to rate distortion criteria
    • 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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
    • 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
    • H04N19/60—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
    • H04N19/70—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, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Decodificador para la decodificación basada en bloques de una señal de imagen codificada usando decodificación por transformación, configurado para seleccionar para un bloque predeterminado un modo de transformación seleccionado, para decodificar por entropía un bloque que se va a descuantificar, que está asociado con el bloque predeterminado de acuerdo con el modo de transformación seleccionado, a partir de un flujo de datos y para descuantificar el bloque que se va a descuantificar utilizando una precisión de cuantificación, que depende del modo de transformación seleccionado, para obtener un bloque descuantificado.
MX2021015312A 2019-06-14 2020-06-12 Codificador, decodificador, metodos y programas informaticos con una escala mejorada basada en transformacion. MX2021015312A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19180322 2019-06-14
PCT/EP2020/066355 WO2020249762A1 (en) 2019-06-14 2020-06-12 Encoder, decoder, methods and computer programs with an improved transform based scaling

Publications (1)

Publication Number Publication Date
MX2021015312A true MX2021015312A (es) 2022-02-03

Family

ID=66867055

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2021015312A MX2021015312A (es) 2019-06-14 2020-06-12 Codificador, decodificador, metodos y programas informaticos con una escala mejorada basada en transformacion.

Country Status (9)

Country Link
US (1) US20220103820A1 (es)
EP (1) EP3984220A1 (es)
JP (2) JP7522137B2 (es)
KR (1) KR20220030999A (es)
CN (1) CN114009028B (es)
BR (1) BR112021025017A2 (es)
MX (1) MX2021015312A (es)
TW (1) TWI781416B (es)
WO (1) WO2020249762A1 (es)

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JP7197720B2 (ja) 2019-02-24 2022-12-27 北京字節跳動網絡技術有限公司 パレットモードの使用の指示の独立した符号化
EP3987806A4 (en) * 2019-07-20 2022-08-31 Beijing Bytedance Network Technology Co., Ltd. CONDITIONAL CODING OF PALETTE MODE USE INDICATION
CN114145013B (zh) 2019-07-23 2023-11-14 北京字节跳动网络技术有限公司 调色板模式编解码的模式确定
CN114208174B (zh) 2019-07-29 2023-11-28 北京字节跳动网络技术有限公司 预测过程中的调色板模式编解码
EP4020985A4 (en) * 2019-08-23 2023-08-23 Apple Inc. METHOD FOR ENCODING/DECODING IMAGE SIGNALS AND APPARATUS THEREFORE
CN115152216A (zh) * 2020-03-12 2022-10-04 松下电器（美国）知识产权公司 编码装置、解码装置、编码方法和解码方法

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Also Published As

Publication number Publication date
TW202106018A (zh) 2021-02-01
JP2022536376A (ja) 2022-08-15
EP3984220A1 (en) 2022-04-20
JP2024133702A (ja) 2024-10-02
CN114009028A (zh) 2022-02-01
BR112021025017A2 (pt) 2022-02-22
TWI781416B (zh) 2022-10-21
JP7522137B2 (ja) 2024-07-24
KR20220030999A (ko) 2022-03-11
WO2020249762A1 (en) 2020-12-17
US20220103820A1 (en) 2022-03-31
CN114009028B (zh) 2024-09-10

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