DE68906259D1 - Geraet zur diskret-kosinus-transform-kodierung digitaler videosignale. - Google Patents
Geraet zur diskret-kosinus-transform-kodierung digitaler videosignale.Info
- Publication number
- DE68906259D1 DE68906259D1 DE8989830208T DE68906259T DE68906259D1 DE 68906259 D1 DE68906259 D1 DE 68906259D1 DE 8989830208 T DE8989830208 T DE 8989830208T DE 68906259 T DE68906259 T DE 68906259T DE 68906259 D1 DE68906259 D1 DE 68906259D1
- Authority
- DE
- Germany
- Prior art keywords
- discrete
- digital video
- video signals
- encoding digital
- cosinus transform
- 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 - Fee Related
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
- H04N19/80—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
- H04N19/10—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
- H04N19/152—Data rate or code amount at the encoder output by measuring the fullness of the transmission buffer
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP89830208A EP0396846B1 (de) | 1989-05-12 | 1989-05-12 | Gerät zur Diskret-Kosinus-Transform-Kodierung digitaler Videosignale |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68906259D1 true DE68906259D1 (de) | 1993-06-03 |
DE68906259T2 DE68906259T2 (de) | 1993-12-09 |
Family
ID=8203217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE89830208T Expired - Fee Related DE68906259T2 (de) | 1989-05-12 | 1989-05-12 | Gerät zur Diskret-Kosinus-Transform-Kodierung digitaler Videosignale. |
Country Status (6)
Country | Link |
---|---|
US (1) | US5005076A (de) |
EP (1) | EP0396846B1 (de) |
JP (1) | JPH0364188A (de) |
CA (1) | CA2012641C (de) |
DE (1) | DE68906259T2 (de) |
ES (1) | ES2040499T3 (de) |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01288341A (ja) * | 1988-05-16 | 1989-11-20 | Agency Of Ind Science & Technol | 液相ヒドロホルミル化反応用固体触媒およびその製造方法 |
JPH0832047B2 (ja) * | 1989-04-28 | 1996-03-27 | 日本ビクター株式会社 | 予測符号化装置 |
US5164828A (en) * | 1990-02-26 | 1992-11-17 | Sony Corporation | Video signal transmission and method and apparatus for coding video signal used in this |
US5453786A (en) * | 1990-07-30 | 1995-09-26 | Mpr Teltech Ltd. | Method and apparatus for image data processing |
JP2549013B2 (ja) * | 1990-10-08 | 1996-10-30 | 日本ビクター株式会社 | データ圧縮装置 |
JP2860970B2 (ja) * | 1991-02-04 | 1999-02-24 | 富士通株式会社 | 画像符号化装置 |
JPH0530493A (ja) * | 1991-07-24 | 1993-02-05 | Sony Corp | デイジタルビデオ信号の復号化装置 |
KR100255528B1 (ko) * | 1991-10-31 | 2000-05-01 | 요트.게.아. 롤페즈 | 디지탈 텔레비젼 영상을 송신기에서 수신기로 송신하기 위한 텔레비젼 시스템 |
SE9103380L (sv) * | 1991-11-15 | 1993-03-08 | Televerket | Foerfarande och apparat foer bildkodning med oeverhoppning av bilder och/eller komponenter |
SE9103381L (sv) * | 1991-11-15 | 1993-03-08 | Televerket | Foerfarande och apparat foer bildkodning med val av steghoejd i kvantiseraren |
US5806072A (en) * | 1991-12-20 | 1998-09-08 | Olympus Optical Co., Ltd. | Electronic imaging apparatus having hierarchical image data storage structure for computer-compatible image data management |
JP2636622B2 (ja) * | 1992-03-13 | 1997-07-30 | 松下電器産業株式会社 | ビデオ信号の符号化方法及び復号化方法ならびにビデオ信号の符号化装置及び復号化装置 |
JP2558996B2 (ja) * | 1992-07-21 | 1996-11-27 | 松下電器産業株式会社 | 画像符号化方法及び画像符号化装置 |
US5325125A (en) * | 1992-09-24 | 1994-06-28 | Matsushita Electric Corporation Of America | Intra-frame filter for video compression systems |
US5982437A (en) * | 1992-10-26 | 1999-11-09 | Sony Corporation | Coding method and system, and decoding method and system |
JPH0828876B2 (ja) * | 1993-02-25 | 1996-03-21 | 日本電気株式会社 | 動画像信号のリフレッシュ方法 |
PL175445B1 (pl) * | 1993-11-08 | 1998-12-31 | Sony Corp | Sposób i urządzenie do kodowania sygnału wizyjnego |
JPH07135653A (ja) * | 1993-11-12 | 1995-05-23 | Nec Corp | 画像符号化装置 |
JPH07177511A (ja) * | 1993-12-17 | 1995-07-14 | Nec Corp | 画像符号化装置 |
US5600375A (en) * | 1994-09-08 | 1997-02-04 | Intel Corporation | Rendering an inter verses intra video encoding decision based upon a vertical gradient measure of target video frames |
JP3082585B2 (ja) * | 1994-09-09 | 2000-08-28 | 富士ゼロックス株式会社 | 画像情報符号化処理装置、画像情報復号化処理装置及び画像情報符号化復号化処理装置 |
FI97495C (fi) * | 1995-02-06 | 1996-12-27 | Nokia Technology Gmbh | Menetelmä kuvan terävöittämiseksi |
US5959872A (en) * | 1996-10-28 | 1999-09-28 | Samsung Electronics Co., Ltd. | Apparatus and method for bidirectional scanning of video coefficients |
KR100522121B1 (ko) * | 1997-12-17 | 2006-01-12 | 삼성전자주식회사 | 버퍼상태에 따른 dct계수를 제한하는 mpeg인코더 |
US6873368B1 (en) | 1997-12-23 | 2005-03-29 | Thomson Licensing Sa. | Low noise encoding and decoding method |
US7054362B1 (en) | 2001-05-29 | 2006-05-30 | Cisco Technology, Inc. | Methods and apparatus for updating a reduction ratio |
US6763070B1 (en) * | 2001-05-29 | 2004-07-13 | Cisco Technology, Inc. | Methods and apparatus for selecting a cut-off index |
US7162097B1 (en) | 2001-05-29 | 2007-01-09 | Cisco Technology, Inc. | Methods and apparatus for transform coefficient filtering |
US6912255B2 (en) * | 2002-05-30 | 2005-06-28 | Mobixell Netwoks Inc. | Bit rate control through selective modification of DCT coefficients |
CN100358366C (zh) * | 2002-07-11 | 2007-12-26 | 松下电器产业株式会社 | 滤波强度的决定方法、动态图像编码方法及解码方法 |
US20060062478A1 (en) * | 2004-08-16 | 2006-03-23 | Grandeye, Ltd., | Region-sensitive compression of digital video |
US7634148B2 (en) * | 2005-01-07 | 2009-12-15 | Ntt Docomo, Inc. | Image signal transforming and inverse-transforming method and computer program product with pre-encoding filtering features |
JP2010009624A (ja) * | 2009-10-07 | 2010-01-14 | Ntt Docomo Inc | 画像信号変換方法、画像信号逆変換方法、画像符号化装置、画像復号装置、画像符号化方法、画像復号方法、画像符号化プログラム、及び、画像復号プログラム |
CN115103190A (zh) * | 2022-06-14 | 2022-09-23 | 晶晨芯半导体(成都)有限公司 | 编码器码率控制方法及模块、芯片、电子设备和存储介质 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5244512A (en) * | 1975-10-06 | 1977-04-07 | Nippon Telegr & Teleph Corp <Ntt> | Between-frame coding equipment |
JPS56152386A (en) * | 1980-04-25 | 1981-11-25 | Oki Electric Ind Co Ltd | Coding system of picture signal |
CA1251276A (en) * | 1985-03-20 | 1989-03-14 | Toshio Koga | Method and arrangement of coding digital image signals utilizing interframe correlation |
ATE61703T1 (de) * | 1985-04-17 | 1991-03-15 | Siemens Ag | Verfahren zur bilddatenreduktion fuer digitale fernsehsignale. |
DE3613343A1 (de) * | 1986-04-19 | 1987-10-22 | Philips Patentverwaltung | Hybrid-codierer |
US4833535A (en) * | 1987-02-04 | 1989-05-23 | Kabushiki Kaisha Toshiba | Image transmission apparatus |
US4745474A (en) * | 1987-04-17 | 1988-05-17 | General Electric Company | Two resolution level DPCM system |
US4897855A (en) * | 1987-12-01 | 1990-01-30 | General Electric Company | DPCM system with adaptive quantizer having unchanging bin number ensemble |
US4941043A (en) * | 1988-06-14 | 1990-07-10 | Siemens Aktiengesellschaft | Method for reducing blocking artifacts in video scene coding with discrete cosine transformation (DCT) at a low data rate |
JPH0832047B2 (ja) * | 1989-04-28 | 1996-03-27 | 日本ビクター株式会社 | 予測符号化装置 |
-
1989
- 1989-05-12 DE DE89830208T patent/DE68906259T2/de not_active Expired - Fee Related
- 1989-05-12 ES ES198989830208T patent/ES2040499T3/es not_active Expired - Lifetime
- 1989-05-12 EP EP89830208A patent/EP0396846B1/de not_active Expired - Lifetime
-
1990
- 1990-03-06 US US07/489,486 patent/US5005076A/en not_active Expired - Fee Related
- 1990-03-20 CA CA002012641A patent/CA2012641C/en not_active Expired - Fee Related
- 1990-04-03 JP JP2089018A patent/JPH0364188A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JPH0364188A (ja) | 1991-03-19 |
DE68906259T2 (de) | 1993-12-09 |
US5005076A (en) | 1991-04-02 |
CA2012641C (en) | 1995-08-15 |
EP0396846A1 (de) | 1990-11-14 |
CA2012641A1 (en) | 1990-11-12 |
ES2040499T3 (es) | 1993-10-16 |
EP0396846B1 (de) | 1993-04-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |