BR112019001415A2 - métodos e aparelhos de derivação de parâmetro de quantização de referência em sistema de processamento de vídeo - Google Patents

métodos e aparelhos de derivação de parâmetro de quantização de referência em sistema de processamento de vídeo

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Publication number
BR112019001415A2
BR112019001415A2 BR112019001415-2A BR112019001415A BR112019001415A2 BR 112019001415 A2 BR112019001415 A2 BR 112019001415A2 BR 112019001415 A BR112019001415 A BR 112019001415A BR 112019001415 A2 BR112019001415 A2 BR 112019001415A2
Authority
BR
Brazil
Prior art keywords
current
quantization parameter
processing system
video processing
reference quantization
Prior art date
Application number
BR112019001415-2A
Other languages
English (en)
Other versions
BR112019001415A8 (pt
Inventor
Huang Han
Chen Ching-Yeh
Chuang Tzu-Der
Huang Yu-Wen
Original Assignee
Mediatek 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 Mediatek Inc. filed Critical Mediatek Inc.
Publication of BR112019001415A2 publication Critical patent/BR112019001415A2/pt
Publication of BR112019001415A8 publication Critical patent/BR112019001415A8/pt

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
    • 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
    • H04N19/174—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 slice, e.g. a line of blocks or a group of 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
    • H04N19/169—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
    • H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
    • H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
    • 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
    • H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
    • 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)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Image Processing (AREA)

Abstract

trata-se de métodos e aparelhos de processamento para dados de vídeo que compreendem receber dados de entrada associados a um bloco de conversão em código atual (cb) em uma fatia atual, derivar uma localização superior esquerda de um grupo de quantização atual que contém o cb atual com o uso de um processo recursivo ou um processo de rastreamento e determinar um parâmetro de quantização de referência (qp), de acordo com a localização superior esquerda do grupo de quantização atual. o cb atual é codificado ou decodificado de acordo com o qp de referência. o qp de referência pode ser adicionalmente derivado com base em um qp anterior determinado por um método de rastreamento.
BR112019001415A 2016-07-28 2017-07-26 Métodos e aparelhos de derivação de parâmetro de quantização de referência em sistema de processamento de vídeo BR112019001415A8 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CNPCT/CN2016/092011 2016-07-28
PCT/CN2016/092011 WO2018018486A1 (en) 2016-07-28 2016-07-28 Methods of reference quantization parameter derivation for signaling of quantization parameter in quad-tree plus binary tree structure
PCT/CN2017/094431 WO2018019248A1 (en) 2016-07-28 2017-07-26 Methods and apparatuses of reference quantization parameter derivation in video processing system

Publications (2)

Publication Number Publication Date
BR112019001415A2 true BR112019001415A2 (pt) 2019-05-07
BR112019001415A8 BR112019001415A8 (pt) 2023-02-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
BR112019001415A BR112019001415A8 (pt) 2016-07-28 2017-07-26 Métodos e aparelhos de derivação de parâmetro de quantização de referência em sistema de processamento de vídeo

Country Status (6)

Country Link
US (1) US10681351B2 (pt)
EP (1) EP3476126B1 (pt)
CN (1) CN109479139B (pt)
BR (1) BR112019001415A8 (pt)
TW (1) TWI645711B (pt)
WO (2) WO2018018486A1 (pt)

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Also Published As

Publication number Publication date
CN109479139B (zh) 2022-03-18
US10681351B2 (en) 2020-06-09
CN109479139A (zh) 2019-03-15
WO2018019248A1 (en) 2018-02-01
EP3476126A4 (en) 2020-02-26
EP3476126B1 (en) 2024-05-22
EP3476126A1 (en) 2019-05-01
TW201811034A (zh) 2018-03-16
TWI645711B (zh) 2018-12-21
WO2018018486A1 (en) 2018-02-01
BR112019001415A8 (pt) 2023-02-07
US20190273923A1 (en) 2019-09-05

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Owner name: HFI INNOVATION INC. (TW)

B06W Patent application suspended after preliminary examination (for patents with searches from other patent authorities) chapter 6.23 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]