BR0107757A - Método para filtrar imagens digitais e dispositivo de filtragem - Google Patents

Método para filtrar imagens digitais e dispositivo de filtragem

Info

Publication number
BR0107757A
BR0107757A BR0107757-0A BR0107757A BR0107757A BR 0107757 A BR0107757 A BR 0107757A BR 0107757 A BR0107757 A BR 0107757A BR 0107757 A BR0107757 A BR 0107757A
Authority
BR
Brazil
Prior art keywords
filtering
digital images
decoded
current block
block
Prior art date
Application number
BR0107757-0A
Other languages
English (en)
Inventor
Jani Lainema
Marta Karczewicz
Bogdan-Paul Dobrin
Original Assignee
Nokia 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
Priority claimed from FI20000122A external-priority patent/FI20000122A0/fi
Application filed by Nokia Corp filed Critical Nokia Corp
Publication of BR0107757A publication Critical patent/BR0107757A/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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/527—Global motion vector estimation
    • 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
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
    • H04N19/895—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder in combination with error concealment

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Holo Graphy (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Color Television Systems (AREA)

Abstract

"MéTODO PARA FILTRAR IMAGENS DIGITAIS E DISPOSITIVO DE FILTRAGEM." A invenção relata um método para reduzir os artefatos visuais na imagem digital, a qual é codificada pelos blocos (B1, B2, B3, B4) e então decodificados. O método de filtragem é executado para reduzir os artefatos visuais devido aos limites (R12, R13, R24, R34) entre o bloco atual e o bloco adjacente (B1, B2, B3, B4). A filtragem é executada após o bloco atual (B1, B2, B3, B4) ser decodificado e existe um limite disponível para a filtragem entre o bloco atual e o bloco previamente decodificado.
BR0107757-0A 2000-01-21 2001-01-22 Método para filtrar imagens digitais e dispositivo de filtragem BR0107757A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20000122A FI20000122A0 (fi) 2000-01-21 2000-01-21 Menetelmä digitaalisten kuvien suodattamiseksi ja suodatin
FI20000141A FI117534B (fi) 2000-01-21 2000-01-24 Menetelmä digitaalisten kuvien suodattamiseksi ja suodatin
PCT/FI2001/000048 WO2001054414A1 (en) 2000-01-21 2001-01-22 A method for filtering digital images, and a filtering device

Publications (1)

Publication Number Publication Date
BR0107757A true BR0107757A (pt) 2002-11-12

Family

ID=26160929

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0107757-0A BR0107757A (pt) 2000-01-21 2001-01-22 Método para filtrar imagens digitais e dispositivo de filtragem

Country Status (13)

Country Link
US (1) US7388996B2 (pt)
EP (1) EP1264486B1 (pt)
JP (2) JP2003520530A (pt)
KR (1) KR100754461B1 (pt)
CN (1) CN100568973C (pt)
AT (1) ATE420534T1 (pt)
AU (1) AU2001230274A1 (pt)
BR (1) BR0107757A (pt)
CA (1) CA2396941C (pt)
DE (1) DE60137315D1 (pt)
FI (1) FI117534B (pt)
HK (1) HK1054289A1 (pt)
WO (1) WO2001054414A1 (pt)

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Also Published As

Publication number Publication date
KR100754461B1 (ko) 2007-09-03
US20010019634A1 (en) 2001-09-06
JP2003520530A (ja) 2003-07-02
HK1054289A1 (zh) 2003-11-21
ATE420534T1 (de) 2009-01-15
FI117534B (fi) 2006-11-15
WO2001054414A1 (en) 2001-07-26
AU2001230274A1 (en) 2001-07-31
EP1264486B1 (en) 2009-01-07
CA2396941A1 (en) 2001-07-26
JP2007300676A (ja) 2007-11-15
CN100568973C (zh) 2009-12-09
DE60137315D1 (de) 2009-02-26
EP1264486A1 (en) 2002-12-11
FI20000141A0 (fi) 2000-01-24
CA2396941C (en) 2005-10-18
CN1416650A (zh) 2003-05-07
JP4990701B2 (ja) 2012-08-01
US7388996B2 (en) 2008-06-17
KR20030003222A (ko) 2003-01-09
FI20000141A (fi) 2001-07-22

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 14A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2290 DE 25/11/2014.

B15K Others concerning applications: alteration of classification

Ipc: H04N 19/527 (2014.01), H04N 19/86 (2014.01), H04N