DE69126525T2 - Digitale bildverarbeitung mit filterung der blockkanten - Google Patents
Digitale bildverarbeitung mit filterung der blockkantenInfo
- Publication number
- DE69126525T2 DE69126525T2 DE69126525T DE69126525T DE69126525T2 DE 69126525 T2 DE69126525 T2 DE 69126525T2 DE 69126525 T DE69126525 T DE 69126525T DE 69126525 T DE69126525 T DE 69126525T DE 69126525 T2 DE69126525 T2 DE 69126525T2
- Authority
- DE
- Germany
- Prior art keywords
- blocks
- coefficients
- decoded
- coded
- pixels
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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
- H04N19/50—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
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
- H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
-
- 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
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US49412090A | 1990-03-15 | 1990-03-15 | |
PCT/EP1991/000451 WO1991014340A1 (en) | 1990-03-15 | 1991-03-09 | Digital image processing including block edges filtering |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69126525D1 DE69126525D1 (de) | 1997-07-17 |
DE69126525T2 true DE69126525T2 (de) | 1997-09-25 |
Family
ID=23963128
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69126525T Expired - Lifetime DE69126525T2 (de) | 1990-03-15 | 1991-03-09 | Digitale bildverarbeitung mit filterung der blockkanten |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0519995B1 (de) |
JP (1) | JP2891773B2 (de) |
KR (1) | KR100235815B1 (de) |
AT (1) | ATE154485T1 (de) |
AU (1) | AU7480691A (de) |
DE (1) | DE69126525T2 (de) |
WO (1) | WO1991014340A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9204117D0 (en) * | 1992-02-26 | 1992-04-08 | British Broadcasting Corp | Video image processing |
US5512956A (en) * | 1994-02-04 | 1996-04-30 | At&T Corp. | Adaptive spatial-temporal postprocessing for low bit-rate coded image sequences |
DE19604050B4 (de) * | 1995-08-17 | 2005-09-29 | Siemens Ag | Verfahren zur Bearbeitung von decodierten Bildblöcken eines blockbasierten Verfahrens zur Bildcodierung |
FI106071B (fi) | 1997-03-13 | 2000-11-15 | Nokia Mobile Phones Ltd | Mukautuva suodatin |
KR100243225B1 (ko) | 1997-07-16 | 2000-02-01 | 윤종용 | 블록화효과 및 링잉잡음 감소를 위한 신호적응필터링방법 및신호적응필터 |
US7203234B1 (en) | 2000-03-31 | 2007-04-10 | Sharp Laboratories Of America, Inc. | Method of directional filtering for post-processing compressed video |
US20020122491A1 (en) | 2001-01-03 | 2002-09-05 | Marta Karczewicz | Video decoder architecture and method for using same |
US6765963B2 (en) | 2001-01-03 | 2004-07-20 | Nokia Corporation | Video decoder architecture and method for using same |
US6920175B2 (en) * | 2001-01-03 | 2005-07-19 | Nokia Corporation | Video coding architecture and methods for using same |
DE10158658A1 (de) | 2001-11-30 | 2003-06-12 | Bosch Gmbh Robert | Verfahren zur gerichteten Prädiktion eines Bildblockes |
US7693220B2 (en) | 2002-01-03 | 2010-04-06 | Nokia Corporation | Transmission of video information |
BRPI0303901B1 (pt) | 2002-07-11 | 2018-03-06 | Godo Kaisha Ip Bridge 1 | Método de determinação de poder de filtragem para determinar um poder de filtragem para remover uma distorção de codificação entre blocos que constituem uma imagem, método de decodificação de imagem móvel para decodificar os dados de imagem móvel codificados, aparelho de determinação de poder de filtragem, e aparelho de codificação de imagem móvel |
ES2334934T3 (es) | 2002-09-04 | 2010-03-17 | Microsoft Corporation | Codificacion de entropia por adaptacion de codificacion entre modalidades de nivel y de longitud de sucesion y nivel. |
EP1582062A4 (de) * | 2003-01-10 | 2009-09-23 | Thomson Licensing | Räumliche fehlerverbergung auf der basis der in einem codiertenstrom übertragenen intraprädiktionsmoden |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4394774A (en) * | 1978-12-15 | 1983-07-19 | Compression Labs, Inc. | Digital video compression system and methods utilizing scene adaptive coding with rate buffer feedback |
US4754492A (en) * | 1985-06-03 | 1988-06-28 | Picturetel Corporation | Method and system for adapting a digitized signal processing system for block processing with minimal blocking artifacts |
US4704628A (en) * | 1986-07-16 | 1987-11-03 | Compression Labs, Inc. | Combined intraframe and interframe transform coding system |
FR2606187B1 (fr) * | 1986-10-31 | 1988-12-09 | Thomson Grand Public | Procede et dispositif de reduction du bruit engendre par un codeur-decodeur d'images numeriques operant par blocs |
-
1991
- 1991-03-09 EP EP91906295A patent/EP0519995B1/de not_active Expired - Lifetime
- 1991-03-09 AU AU74806/91A patent/AU7480691A/en not_active Abandoned
- 1991-03-09 WO PCT/EP1991/000451 patent/WO1991014340A1/en active IP Right Grant
- 1991-03-09 JP JP3505711A patent/JP2891773B2/ja not_active Expired - Fee Related
- 1991-03-09 AT AT91906295T patent/ATE154485T1/de active
- 1991-03-09 DE DE69126525T patent/DE69126525T2/de not_active Expired - Lifetime
-
1992
- 1992-09-15 KR KR1019920702221A patent/KR100235815B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0519995A1 (de) | 1992-12-30 |
AU7480691A (en) | 1991-10-10 |
WO1991014340A1 (en) | 1991-09-19 |
JPH05505080A (ja) | 1993-07-29 |
EP0519995B1 (de) | 1997-06-11 |
KR100235815B1 (en) | 1999-12-15 |
JP2891773B2 (ja) | 1999-05-17 |
ATE154485T1 (de) | 1997-06-15 |
DE69126525D1 (de) | 1997-07-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licences declared (paragraph 23) |