BR9901340A - Processo de filtragem de circuito para dados de imagem e aparelhagem para o mesmo. - Google Patents

Processo de filtragem de circuito para dados de imagem e aparelhagem para o mesmo.

Info

Publication number
BR9901340A
BR9901340A BR9901340A BR9901340A BR9901340A BR 9901340 A BR9901340 A BR 9901340A BR 9901340 A BR9901340 A BR 9901340A BR 9901340 A BR9901340 A BR 9901340A BR 9901340 A BR9901340 A BR 9901340A
Authority
BR
Brazil
Prior art keywords
image data
circuit filtering
filtering process
filtering
same
Prior art date
Application number
BR9901340A
Other languages
English (en)
Other versions
BRPI9901340B1 (pt
Inventor
Yung-Lyul Lee
Hyun-Wook Park
Original Assignee
Samsung Electronics Co Ltd
Korea Advanced Inst Sci & Tech
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
Priority claimed from KR1019980031431A external-priority patent/KR100301013B1/ko
Priority claimed from KR1019980046822A external-priority patent/KR100331331B1/ko
Application filed by Samsung Electronics Co Ltd, Korea Advanced Inst Sci & Tech filed Critical Samsung Electronics Co Ltd
Publication of BR9901340A publication Critical patent/BR9901340A/pt
Publication of BRPI9901340B1 publication Critical patent/BRPI9901340B1/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
    • H04N19/85—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
    • 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
    • H04N19/162—User input
    • 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
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/436—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation using parallelised computational arrangements
    • 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
    • H04N19/70—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
    • H04N19/80—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

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)

Abstract

PROCESSO DE FILTRAGEM DE CIRCUITO PARA DADOS DE IMAGEM E APARELHAGEM PARA O MESMO. Processo de filtragem de circuito para redução do efeito de quantização gerado quando um dado de imagem é codificado e decodificado, e uma aparelhagem para o mesmo. O processo de filtragem de circuito inclui as etapas de extração de um indicador indicando se o dado de imagem necessita de filtragem de circuito utilizando a distribuição de coeficientes quantizados inversos (IQCs) de um dado de imagem quantizado inverso e um vetor de movimento indicando a diferença entre o quadro anterior e o quadro corrente. O dado de imagem correspondendo ao indicador é então filtrado por um processo pré-determinado caso o indicador extraído indique uma necessidade para a filtragem de circuito. Utilizando os indicadores e um filtro adaptativo reduz-se o efeito de quantização o que é útil para reduzir a quantidade necessária de computação para a filtragem. Ainda, a filtragem pode ser realizada através de processamento paralelo sem multiplicação e divisão, de modo que a complexidade do hardware possa ser reduzida.
BRPI9901340A 1998-08-01 1999-04-30 processo de filtragem de circuito para dados de imagem para a redução do efeito de quantização gerado BRPI9901340B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1019980031431A KR100301013B1 (ko) 1998-08-01 1998-08-01 영상데이터 루프필터링방법 및 장치
KR1019980046822A KR100331331B1 (ko) 1998-11-02 1998-11-02 영상데이터 루프필터링 방법

Publications (2)

Publication Number Publication Date
BR9901340A true BR9901340A (pt) 2000-05-09
BRPI9901340B1 BRPI9901340B1 (pt) 2016-03-22

Family

ID=26633999

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9901340A BRPI9901340B1 (pt) 1998-08-01 1999-04-30 processo de filtragem de circuito para dados de imagem para a redução do efeito de quantização gerado

Country Status (6)

Country Link
US (3) US6665346B1 (pt)
JP (1) JP3308921B2 (pt)
AU (1) AU717480B2 (pt)
BR (1) BRPI9901340B1 (pt)
RU (1) RU2154918C1 (pt)
SG (1) SG70679A1 (pt)

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