CA2093801A1 - Codage de signaux - Google Patents
Codage de signauxInfo
- Publication number
- CA2093801A1 CA2093801A1 CA2093801A CA2093801A CA2093801A1 CA 2093801 A1 CA2093801 A1 CA 2093801A1 CA 2093801 A CA2093801 A CA 2093801A CA 2093801 A CA2093801 A CA 2093801A CA 2093801 A1 CA2093801 A1 CA 2093801A1
- Authority
- CA
- Canada
- Prior art keywords
- base layer
- data
- coding
- coded video
- inverse
- 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.)
- Granted
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
- H04N19/10—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
- H04N19/187—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 a scalable video layer
-
- 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
- H04N19/124—Quantisation
-
- 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
- H04N19/10—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
- H04N19/172—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 picture, frame or field
-
- 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
- H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
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)
Abstract
L'invention est une méthode de codage de signaux vidéo en vue de leur transmission. Elle comprend les opérations suivantes : codage des données représentant un signal vidéo par une opération de codage à couche de base à quantificateur de couche de base utilisant un saut de quantification permettant de coder les données vidéo en vue de leur transmission; obtention de données vidéo codées en inverse par exécution d'une opération de codage à couche de base inverse sur les données vidéo codées; obtention de données de différence à partir des données représentant un signal vidéo et les données vidéo à codage inverse; et codage des données de différence par une opération de codage à couche d'accentuation seulement quand l'énergie des données de différence est supérieure à un seuil variable, ce seuil étant inversement proportionnel au saut de quantification de la couche de base.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9022326.4 | 1990-10-15 | ||
GB909022326A GB9022326D0 (en) | 1990-10-15 | 1990-10-15 | Signal coding |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2093801A1 true CA2093801A1 (fr) | 1992-04-16 |
CA2093801C CA2093801C (fr) | 1997-12-23 |
Family
ID=10683715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002093801A Expired - Fee Related CA2093801C (fr) | 1990-10-15 | 1991-10-15 | Codage de signaux |
Country Status (9)
Country | Link |
---|---|
US (1) | US5349383A (fr) |
EP (1) | EP0553215B1 (fr) |
JP (1) | JP3187422B2 (fr) |
AU (1) | AU8663891A (fr) |
CA (1) | CA2093801C (fr) |
DE (1) | DE69120679T2 (fr) |
GB (1) | GB9022326D0 (fr) |
HK (1) | HK112397A (fr) |
WO (1) | WO1992007445A1 (fr) |
Families Citing this family (54)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5506623A (en) * | 1991-12-19 | 1996-04-09 | Sony Corporation | Data compression methods and systems with quantization distortion measurement means |
JP3241778B2 (ja) | 1991-12-24 | 2001-12-25 | ソニー株式会社 | 符号化装置 |
US5621760A (en) * | 1992-07-21 | 1997-04-15 | Kokusai Electric Co., Ltd. | Speech coding transmission system and coder and decoder therefor |
EP0959629A3 (fr) * | 1992-10-28 | 2003-01-02 | Victor Company Of Japan, Limited | Appareil de reproduction à taux de transfert variable |
FR2697393A1 (fr) * | 1992-10-28 | 1994-04-29 | Philips Electronique Lab | Dispositif de codage de signaux numériques représentatifs d'images, et dispositif de décodage correspondant. |
US5426463A (en) * | 1993-02-22 | 1995-06-20 | Rca Thomson Licensing Corporation | Apparatus for controlling quantizing in a video signal compressor |
JP2979900B2 (ja) * | 1993-05-26 | 1999-11-15 | 日本ビクター株式会社 | 記録媒体 |
US5497246A (en) * | 1993-07-15 | 1996-03-05 | Asahi Kogaku Kogyo Kabushiki Kaisha | Image signal processing device |
US5537440A (en) * | 1994-01-07 | 1996-07-16 | Motorola, Inc. | Efficient transcoding device and method |
US5734432A (en) * | 1994-07-15 | 1998-03-31 | Lucent Technologies, Inc. | Method of incorporating a variable rate auxiliary data stream with a variable rate primary data stream |
EP2190207A1 (fr) * | 1994-10-21 | 2010-05-26 | AT&T Corporation | Procédé de vérification de mémoire tampon vidéo |
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 |
US5937098A (en) * | 1995-02-06 | 1999-08-10 | Asahi Kogaku Kogyo Kabushiki Kaisha | Adaptive quantization of orthogonal transform coefficients for setting a target amount of compression |
US5734677A (en) * | 1995-03-15 | 1998-03-31 | The Chinese University Of Hong Kong | Method for compression of loss-tolerant video image data from multiple sources |
JPH08256341A (ja) * | 1995-03-17 | 1996-10-01 | Sony Corp | 画像信号符号化方法、画像信号符号化装置、画像信号記録媒体、及び画像信号復号化装置 |
KR100209410B1 (ko) * | 1995-03-28 | 1999-07-15 | 전주범 | 영상 신호 부호화 장치 |
US5621660A (en) * | 1995-04-18 | 1997-04-15 | Sun Microsystems, Inc. | Software-based encoder for a software-implemented end-to-end scalable video delivery system |
KR0153671B1 (ko) * | 1995-06-30 | 1998-11-16 | 배순훈 | 고선명 텔레비젼 엔코더의 레이트 콘트롤러 |
CA2208950A1 (fr) * | 1996-07-03 | 1998-01-03 | Xuemin Chen | Commande de cadence pour le codage de signal video digital stereoscopique |
US6381369B1 (en) | 1996-07-17 | 2002-04-30 | Sony Corporation | Image coding apparatus, image coding method, image decoding method, image decoding apparatus, image data transmitting method and recording medium |
AU714554B2 (en) | 1996-07-17 | 2000-01-06 | Sony Corporation | Image coding and decoding using mapping coefficients corresponding to class information of pixel blocks |
TW359919B (en) | 1996-07-17 | 1999-06-01 | Sony Corp | Image coding apparatus, image coding method, image decoding method, image decoding apparatus, image data transmitting method and recording medium |
AU718453B2 (en) | 1996-07-17 | 2000-04-13 | Sony Corporation | Image coding and decoding using mapping coefficients corresponding to class information of pixel blocks |
US6292591B1 (en) * | 1996-07-17 | 2001-09-18 | Sony Coporation | Image coding and decoding using mapping coefficients corresponding to class information of pixel blocks |
US6564262B1 (en) | 1996-09-16 | 2003-05-13 | Microsoft Corporation | Multiple multicasting of multimedia streams |
JPH10117353A (ja) * | 1996-10-09 | 1998-05-06 | Nec Corp | データ処理装置および受信装置 |
US6043846A (en) * | 1996-11-15 | 2000-03-28 | Matsushita Electric Industrial Co., Ltd. | Prediction apparatus and method for improving coding efficiency in scalable video coding |
US6633609B1 (en) * | 1996-12-24 | 2003-10-14 | Intel Corporation | Method and apparatus for bit rate control in a digital video environment for arbitrary bandwidth |
US5870146A (en) * | 1997-01-21 | 1999-02-09 | Multilink, Incorporated | Device and method for digital video transcoding |
US6639945B2 (en) | 1997-03-14 | 2003-10-28 | Microsoft Corporation | Method and apparatus for implementing motion detection in video compression |
US6728775B1 (en) | 1997-03-17 | 2004-04-27 | Microsoft Corporation | Multiple multicasting of multimedia streams |
KR100482282B1 (ko) * | 1997-07-03 | 2005-07-11 | 주식회사 팬택앤큐리텔 | 신축형(스케일러블)부호화시고위계층(EnhancementLayer)부호화방법 |
JP3915855B2 (ja) | 1997-12-19 | 2007-05-16 | ソニー株式会社 | 画像符号化装置および画像符号化方法、並びに学習装置および学習方法 |
US6731811B1 (en) * | 1997-12-19 | 2004-05-04 | Voicecraft, Inc. | Scalable predictive coding method and apparatus |
JPH11285002A (ja) * | 1998-02-02 | 1999-10-15 | Sony Corp | 動画像符号化装置及び動画像符号化方法 |
US5995150A (en) * | 1998-02-20 | 1999-11-30 | Winbond Electronics Corporation America | Dual compressed video bitstream camera for universal serial bus connection |
US6956899B2 (en) * | 1998-03-23 | 2005-10-18 | International Business Machines Corporation | Precise bit control apparatus with look-ahead for MPEG encoding |
US6785330B1 (en) * | 1999-08-19 | 2004-08-31 | Ghildra Holdings, Inc. | Flexible video encoding/decoding method |
US6788740B1 (en) * | 1999-10-01 | 2004-09-07 | Koninklijke Philips Electronics N.V. | System and method for encoding and decoding enhancement layer data using base layer quantization data |
US6480547B1 (en) * | 1999-10-15 | 2002-11-12 | Koninklijke Philips Electronics N.V. | System and method for encoding and decoding the residual signal for fine granular scalable video |
US6493387B1 (en) * | 2000-04-10 | 2002-12-10 | Samsung Electronics Co., Ltd. | Moving picture coding/decoding method and apparatus having spatially scalable architecture and signal-to-noise ratio scalable architecture together |
US6621865B1 (en) | 2000-09-18 | 2003-09-16 | Powerlayer Microsystems, Inc. | Method and system for encoding and decoding moving and still pictures |
ATE346461T1 (de) * | 2000-09-22 | 2006-12-15 | Koninkl Philips Electronics Nv | Videocodierung mit hybrider temporeller und snr- bezogener feingranularer skalierbarkeit |
EP1323316A2 (fr) | 2000-09-22 | 2003-07-02 | Koninklijke Philips Electronics N.V. | Echelonnabilite modulaire fine de compensation de mouvement a double boucle |
US6940905B2 (en) * | 2000-09-22 | 2005-09-06 | Koninklijke Philips Electronics N.V. | Double-loop motion-compensation fine granular scalability |
AU2002332706A1 (en) * | 2001-08-30 | 2003-03-18 | Faroudja Cognition Systems, Inc. | Multi-layer video compression system with synthetic high frequencies |
US7039113B2 (en) * | 2001-10-16 | 2006-05-02 | Koninklijke Philips Electronics N.V. | Selective decoding of enhanced video stream |
US6909753B2 (en) * | 2001-12-05 | 2005-06-21 | Koninklijke Philips Electronics, N.V. | Combined MPEG-4 FGS and modulation algorithm for wireless video transmission |
KR100711989B1 (ko) * | 2002-03-12 | 2007-05-02 | 노키아 코포레이션 | 효율적으로 개선된 스케일러블 오디오 부호화 |
US20060159352A1 (en) * | 2005-01-18 | 2006-07-20 | Faisal Ishtiaq | Method and apparatus for encoding a video sequence |
KR100716998B1 (ko) * | 2005-05-24 | 2007-05-10 | 삼성전자주식회사 | 블록화 현상을 감소시키기 위한 부호화 및 복호화 장치 및그 방법과, 이를 구현하기 위한 프로그램이 기록된 기록매체 |
KR20070074451A (ko) * | 2006-01-09 | 2007-07-12 | 엘지전자 주식회사 | 베이스 레이어의 영상신호를 레이어간 예측에 사용하는방법 |
JP4991762B2 (ja) * | 2006-01-09 | 2012-08-01 | エルジー エレクトロニクス インコーポレイティド | 映像信号のエンコーディング/デコーディング方法及び装置 |
ITTO20110414A1 (it) * | 2011-05-11 | 2012-11-12 | St Microelectronics Pvt Ltd | Procedimento ed apparecchiatura per elaborare segnali video, prodotto informatico e segnale codificato relativi |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4541012A (en) * | 1982-01-04 | 1985-09-10 | Compression Labs, Inc. | Video bandwidth reduction system employing interframe block differencing and transform domain coding |
GB8603880D0 (en) * | 1986-02-17 | 1986-03-26 | Indep Broadcasting Authority | Hybrid interpolative predictive code |
FR2625060B1 (fr) * | 1987-12-16 | 1990-10-05 | Guichard Jacques | Procede et dispositifs de codage et de decodage pour la transmission d'images a travers un reseau a debit variable |
US4984076A (en) * | 1988-07-27 | 1991-01-08 | Kabushiki Kaisha Toshiba | Image compression coding system |
US4958226A (en) * | 1989-09-27 | 1990-09-18 | At&T Bell Laboratories | Conditional motion compensated interpolation of digital motion video |
FR2660139B1 (fr) * | 1990-03-23 | 1995-08-25 | France Etat | Procede de codage et de transmission a au moins deux niveaux de qualite d'images numeriques appartenant a une sequence d'images, et dispositifs correspondants. |
US5159447A (en) * | 1991-05-23 | 1992-10-27 | At&T Bell Laboratories | Buffer control for variable bit-rate channel |
US5253058A (en) * | 1992-04-01 | 1993-10-12 | Bell Communications Research, Inc. | Efficient coding scheme for multilevel video transmission |
-
1990
- 1990-10-15 GB GB909022326A patent/GB9022326D0/en active Pending
-
1991
- 1991-10-15 EP EP91919195A patent/EP0553215B1/fr not_active Expired - Lifetime
- 1991-10-15 WO PCT/GB1991/001788 patent/WO1992007445A1/fr active IP Right Grant
- 1991-10-15 US US08/039,489 patent/US5349383A/en not_active Expired - Lifetime
- 1991-10-15 DE DE69120679T patent/DE69120679T2/de not_active Expired - Lifetime
- 1991-10-15 AU AU86638/91A patent/AU8663891A/en not_active Abandoned
- 1991-10-15 CA CA002093801A patent/CA2093801C/fr not_active Expired - Fee Related
- 1991-10-15 JP JP51648791A patent/JP3187422B2/ja not_active Expired - Lifetime
-
1997
- 1997-06-26 HK HK112397A patent/HK112397A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AU8663891A (en) | 1992-05-20 |
HK112397A (en) | 1997-08-29 |
WO1992007445A1 (fr) | 1992-04-30 |
JPH06502047A (ja) | 1994-03-03 |
DE69120679T2 (de) | 1996-11-07 |
EP0553215B1 (fr) | 1996-07-03 |
GB9022326D0 (en) | 1990-11-28 |
DE69120679D1 (de) | 1996-08-08 |
JP3187422B2 (ja) | 2001-07-11 |
EP0553215A1 (fr) | 1993-08-04 |
CA2093801C (fr) | 1997-12-23 |
US5349383A (en) | 1994-09-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |