BR112022005312A2 - Dispositivo e programa de controle do filtro de desbloqueio - Google Patents

Dispositivo e programa de controle do filtro de desbloqueio

Info

Publication number
BR112022005312A2
BR112022005312A2 BR112022005312A BR112022005312A BR112022005312A2 BR 112022005312 A2 BR112022005312 A2 BR 112022005312A2 BR 112022005312 A BR112022005312 A BR 112022005312A BR 112022005312 A BR112022005312 A BR 112022005312A BR 112022005312 A2 BR112022005312 A2 BR 112022005312A2
Authority
BR
Brazil
Prior art keywords
parameter
value
bit depth
program
control device
Prior art date
Application number
BR112022005312A
Other languages
English (en)
Inventor
Iwamura Shunsuke
Nemoto Shimpei
Ichigaya Atsuro
Original Assignee
Japan Broadcasting Corp
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 Japan Broadcasting Corp filed Critical Japan Broadcasting Corp
Publication of BR112022005312A2 publication Critical patent/BR112022005312A2/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
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • 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
    • H04N19/134—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
    • 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
    • H04N19/184—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 bits, e.g. of the compressed video stream
    • 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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • H04N19/82—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Arrangement And Driving Of Transmission Devices (AREA)
  • Telephone Function (AREA)
  • Detergent Compositions (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

DISPOSITIVO E PROGRAMA DE CONTROLE DO FILTRO DE DESBLOQUEIO. Um dispositivo e programa de controle do filtro de desbloqueio que controla um processo realizado em filtro de desbloqueio emu ma imagem decodificada que inclui: um derivador de parâmetro configurado para derivar um valor de parâmetro que controla uma força de filtro no processo de filtro de desbloqueio; e um transformador de parâmetro configurado para gerar um valor de parâmetro transformado transformando o valor de parâmetro com base em uma profundidade de bit que é uma profundidade de bit do sinal de vídeo, em que quando a profundidade de bit de entrada é menor que uma profundidade de bit predeterminada, o transformador de parâmetro é configurado para produzir o valor de parâmetro transformado adicionando um valor de deslocamento ao valor de parâmetro e fazendo um deslocamento de bit de um resultado da adição, e o transformador de parâmetro é configurado para alterar o valor de deslocamento com base na entrada de profundidade de bit.
BR112022005312A 2020-04-02 2021-04-01 Dispositivo e programa de controle do filtro de desbloqueio BR112022005312A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020067043 2020-04-02
PCT/JP2021/014144 WO2021201215A1 (ja) 2020-04-02 2021-04-01 デブロッキングフィルタ制御装置及びプログラム

Publications (1)

Publication Number Publication Date
BR112022005312A2 true BR112022005312A2 (pt) 2022-11-29

Family

ID=77929578

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112022005312A BR112022005312A2 (pt) 2020-04-02 2021-04-01 Dispositivo e programa de controle do filtro de desbloqueio

Country Status (8)

Country Link
US (2) US11595645B2 (pt)
EP (1) EP4131953A4 (pt)
JP (2) JP7080424B2 (pt)
KR (2) KR102448226B1 (pt)
CN (2) CN114503565B (pt)
BR (1) BR112022005312A2 (pt)
MX (2) MX2022003395A (pt)
WO (1) WO2021201215A1 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114503565B (zh) 2020-04-02 2023-03-10 日本放送协会 去块滤波控制装置及程序

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4436183A2 (en) 2011-11-03 2024-09-25 Sun Patent Trust Efficient rounding for deblocking
EP2834980B1 (en) * 2012-04-05 2017-05-10 Telefonaktiebolaget LM Ericsson (publ) Sample adaptive filtering with offsets
US9591302B2 (en) * 2012-07-02 2017-03-07 Microsoft Technology Licensing, Llc Use of chroma quantization parameter offsets in deblocking
US20150016516A1 (en) * 2013-07-15 2015-01-15 Samsung Electronics Co., Ltd. Method for intra prediction improvements for oblique modes in video coding
US11272175B2 (en) * 2016-10-05 2022-03-08 Telefonaktiebolaget Lm Ericsson (Publ) Deringing filter for video coding
CN116320498A (zh) * 2016-11-28 2023-06-23 韩国电子通信研究院 用于滤波的方法和装置
US11284116B2 (en) * 2017-10-09 2022-03-22 Canon Kabushiki Kaisha Method and apparatus for deblocking filtering a block of pixels
US10616577B2 (en) * 2017-10-16 2020-04-07 Intel Corporation Adaptive video deblocking
CN111971966B (zh) * 2018-03-30 2024-10-29 英迪股份有限公司 图像编码/解码方法和设备以及存储比特流的记录介质
JP2020067043A (ja) 2018-10-25 2020-04-30 中川産業株式会社 エンジンの消音装置の製造方法
CN114503565B (zh) 2020-04-02 2023-03-10 日本放送协会 去块滤波控制装置及程序

Also Published As

Publication number Publication date
JP2022105653A (ja) 2022-07-14
US20220217338A1 (en) 2022-07-07
KR20220039847A (ko) 2022-03-29
EP4131953A1 (en) 2023-02-08
JP7080424B2 (ja) 2022-06-03
JP7357721B2 (ja) 2023-10-06
CN114503565A (zh) 2022-05-13
KR20220133321A (ko) 2022-10-04
US11991356B2 (en) 2024-05-21
EP4131953A4 (en) 2024-05-22
WO2021201215A1 (ja) 2021-10-07
MX2022003395A (es) 2023-03-02
CN116132669A (zh) 2023-05-16
CN114503565B (zh) 2023-03-10
MX2023001472A (es) 2023-03-06
US20230179765A1 (en) 2023-06-08
JPWO2021201215A1 (pt) 2021-10-07
KR102448226B1 (ko) 2022-09-27
US11595645B2 (en) 2023-02-28

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