ES2024537B3 - Procedimiento y dispositivo de reduccion de ruido producido por un codificador-decodificador de imagenes numericas actuando por bloques. - Google Patents
Procedimiento y dispositivo de reduccion de ruido producido por un codificador-decodificador de imagenes numericas actuando por bloques.Info
- Publication number
- ES2024537B3 ES2024537B3 ES87402432T ES87402432T ES2024537B3 ES 2024537 B3 ES2024537 B3 ES 2024537B3 ES 87402432 T ES87402432 T ES 87402432T ES 87402432 T ES87402432 T ES 87402432T ES 2024537 B3 ES2024537 B3 ES 2024537B3
- Authority
- ES
- Spain
- Prior art keywords
- pct
- blocks
- window
- filtering
- image
- 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
-
- 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
- H04N19/98—Adaptive-dynamic-range coding [ADRC]
-
- 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)
- Image Processing (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Picture Signal Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8615242A FR2606187B1 (fr) | 1986-10-31 | 1986-10-31 | Procede et dispositif de reduction du bruit engendre par un codeur-decodeur d'images numeriques operant par blocs |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2024537B3 true ES2024537B3 (es) | 1992-03-01 |
Family
ID=9340435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES87402432T Expired - Lifetime ES2024537B3 (es) | 1986-10-31 | 1987-10-28 | Procedimiento y dispositivo de reduccion de ruido producido por un codificador-decodificador de imagenes numericas actuando por bloques. |
Country Status (9)
Country | Link |
---|---|
US (1) | US4903128A (es) |
EP (1) | EP0270405B1 (es) |
JP (1) | JP2575432B2 (es) |
KR (1) | KR950006779B1 (es) |
AT (1) | ATE66773T1 (es) |
DE (1) | DE3772530D1 (es) |
ES (1) | ES2024537B3 (es) |
FR (1) | FR2606187B1 (es) |
WO (1) | WO1988003346A1 (es) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3917085C2 (de) * | 1988-05-25 | 1997-10-02 | Philips Patentverwaltung | Schaltungsanordnung zur Filterung eines Videosignals |
DE3906712A1 (de) * | 1989-03-03 | 1990-09-06 | Thomson Brandt Gmbh | Elektronisches bildwiedergabegeraet |
AU7480691A (en) * | 1990-03-15 | 1991-10-10 | Thomson Consumer Electronics S.A. | Digital image processing including block edges filtering |
FR2661063B1 (fr) * | 1990-04-13 | 1992-06-19 | Thomson Csf | Procede et dispositif de post-filtrage pour codage d'images par transformation cosinus discrete. |
US5208673A (en) * | 1991-11-05 | 1993-05-04 | Matsushita Electric Corporation Of America | Noise reduction in frame transmitted video signals |
FR2688369B1 (fr) | 1992-03-03 | 1996-02-09 | Thomson Csf | Procede de codage d'images a tres bas debit et dispositif de codage-decodage mettant en óoeuvre ce procede. |
US5313298A (en) * | 1992-03-05 | 1994-05-17 | Rubin, Bednarek And Associates, Inc. | Video companding method and system |
EP0567697A1 (en) * | 1992-04-29 | 1993-11-03 | Yiu Keung Chan | Method for spatial domain image compression |
JP3058028B2 (ja) * | 1994-10-31 | 2000-07-04 | 三菱電機株式会社 | 画像符号化データ再符号化装置 |
US5802218A (en) * | 1994-11-04 | 1998-09-01 | Motorola, Inc. | Method, post-processing filter, and video compression system for suppressing mosquito and blocking atrifacts |
JPH09163373A (ja) * | 1995-12-08 | 1997-06-20 | Toshiba Corp | 雑音低減装置 |
US5832120A (en) * | 1995-12-22 | 1998-11-03 | Cirrus Logic, Inc. | Universal MPEG decoder with scalable picture size |
KR100234316B1 (ko) * | 1997-04-04 | 1999-12-15 | 윤종용 | 링잉노이즈 감소를 위한 신호적응 필터링 방법 및 신호적응필터 |
US7146054B2 (en) * | 2003-06-18 | 2006-12-05 | Primax Electronics Ltd. | Method of digital image data compression and decompression |
US8831111B2 (en) * | 2006-05-19 | 2014-09-09 | The Hong Kong University Of Science And Technology | Decoding with embedded denoising |
US8369417B2 (en) | 2006-05-19 | 2013-02-05 | The Hong Kong University Of Science And Technology | Optimal denoising for video coding |
JP4789753B2 (ja) * | 2006-08-28 | 2011-10-12 | 富士通セミコンダクター株式会社 | 画像データバッファ装置、画像転送処理システム、及び画像データバッファ方法 |
JP5233897B2 (ja) | 2009-07-31 | 2013-07-10 | ソニー株式会社 | 画像処理装置および方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2329124A1 (fr) * | 1975-10-24 | 1977-05-20 | Telecommunications Sa | Codeur-decodeur d'images a transformee matricielle avec ponderation des contributions des points de l'image a la formation de la transformee |
US4392123A (en) * | 1980-06-02 | 1983-07-05 | The Dindima Group Pty. Ltd. | Signal-to-noise improving system |
US4566126A (en) * | 1982-04-30 | 1986-01-21 | Fuji Electric Company, Ltd. | Pattern discriminator |
JPH0638658B2 (ja) * | 1984-11-16 | 1994-05-18 | 日本電気株式会社 | 画像信号復号化後処理装置 |
FR2589022B1 (fr) * | 1985-10-18 | 1988-05-27 | Thomson Csf | Procede et dispositif de generation d'images a partir de signaux ultra-sonores obtenus par echographie |
JPS62196990A (ja) * | 1986-02-25 | 1987-08-31 | Fuji Photo Film Co Ltd | 画像デ−タの直交変換符号化方法 |
JP2718668B2 (ja) * | 1986-10-06 | 1998-02-25 | 株式会社日立製作所 | 動き検出回路 |
-
1986
- 1986-10-31 FR FR8615242A patent/FR2606187B1/fr not_active Expired
-
1987
- 1987-10-28 EP EP87402432A patent/EP0270405B1/fr not_active Expired - Lifetime
- 1987-10-28 AT AT87402432T patent/ATE66773T1/de not_active IP Right Cessation
- 1987-10-28 US US07/221,453 patent/US4903128A/en not_active Expired - Lifetime
- 1987-10-28 JP JP62506791A patent/JP2575432B2/ja not_active Expired - Lifetime
- 1987-10-28 ES ES87402432T patent/ES2024537B3/es not_active Expired - Lifetime
- 1987-10-28 DE DE8787402432T patent/DE3772530D1/de not_active Expired - Fee Related
- 1987-10-28 KR KR1019880700725A patent/KR950006779B1/ko not_active IP Right Cessation
- 1987-10-28 WO PCT/FR1987/000425 patent/WO1988003346A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
WO1988003346A1 (fr) | 1988-05-05 |
KR950006779B1 (ko) | 1995-06-22 |
DE3772530D1 (de) | 1991-10-02 |
ATE66773T1 (de) | 1991-09-15 |
JP2575432B2 (ja) | 1997-01-22 |
FR2606187B1 (fr) | 1988-12-09 |
US4903128A (en) | 1990-02-20 |
KR880702031A (ko) | 1988-11-07 |
EP0270405A1 (fr) | 1988-06-08 |
JPH01501115A (ja) | 1989-04-13 |
EP0270405B1 (fr) | 1991-08-28 |
FR2606187A1 (fr) | 1988-05-06 |
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