CA2326674C - Compression de donnees video dans un systeme d'informations - Google Patents
Compression de donnees video dans un systeme d'informations Download PDFInfo
- Publication number
- CA2326674C CA2326674C CA002326674A CA2326674A CA2326674C CA 2326674 C CA2326674 C CA 2326674C CA 002326674 A CA002326674 A CA 002326674A CA 2326674 A CA2326674 A CA 2326674A CA 2326674 C CA2326674 C CA 2326674C
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- CA
- Canada
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- 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
- 238000007906 compression Methods 0.000 title abstract description 33
- 230000006835 compression Effects 0.000 title abstract description 32
- 238000012545 processing Methods 0.000 claims abstract description 58
- 238000013507 mapping Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims description 95
- 230000009466 transformation Effects 0.000 claims description 22
- 238000013144 data compression Methods 0.000 claims description 15
- 238000013139 quantization Methods 0.000 claims description 11
- 238000003491 array Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 description 34
- 238000004513 sizing Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000013500 data storage Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000872 buffer Substances 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
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- 238000012854 evaluation process Methods 0.000 description 3
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- 230000000717 retained effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
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- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
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- 238000007405 data analysis Methods 0.000 description 1
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- 238000005286 illumination Methods 0.000 description 1
- 230000015654 memory Effects 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
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- 230000003068 static effect Effects 0.000 description 1
- 230000003936 working memory Effects 0.000 description 1
Classifications
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- 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
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- 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
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- 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
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- 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
- H04N19/103—Selection of coding mode or of prediction mode
- H04N19/107—Selection of coding mode or of prediction mode between spatial and temporal predictive coding, e.g. picture refresh
-
- 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
- H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
-
- 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
- H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Image Processing (AREA)
Abstract
Selon cette invention, on divise en blocs rectangulaires un champ de données image vidéo, destiné à être codé par compression. On compare (130) chacun des blocs rectangulaires à un bloc correspondant (131) d'une image de référence pour générer des données de comparaison. Si les données de comparaison pour le bloc satisfont au critère sélectionné, le bloc de l'image à coder est sélectionné pour représentation. On génère des données de mappage indiquant les lieux dans le plan d'image qui correspondent aux blocs sélectionnés. L'image à coder est représentée sous une forme comprimée par des données en-tête (106), des données de mappage (108) et des données d'image représentatives des blocs sélectionnés. Lorsque l'image de référence est codée par compression (206), les blocs peuvent être développés dans les zones de l'image de référence qui correspondent à une densité d'informations peu élevée. La configuration du système comprend un panneau arrière (46) raccordé à une unité frontale de traitement / de compression (42), interfacée avec une carte mère (40) à travers un bus PCI.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/069,364 | 1998-04-29 | ||
| US09/069,364 US6006276A (en) | 1996-10-31 | 1998-04-29 | Enhanced video data compression in intelligent video information management system |
| PCT/US1999/009315 WO1999056461A1 (fr) | 1998-04-29 | 1999-04-29 | Compression de donnees video dans un systeme d'informations |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2326674A1 CA2326674A1 (fr) | 1999-11-04 |
| CA2326674C true CA2326674C (fr) | 2008-01-08 |
Family
ID=22088500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002326674A Expired - Lifetime CA2326674C (fr) | 1998-04-29 | 1999-04-29 | Compression de donnees video dans un systeme d'informations |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1075759A4 (fr) |
| JP (1) | JP2002513251A (fr) |
| AU (1) | AU753002B2 (fr) |
| BR (1) | BR9909955A (fr) |
| CA (1) | CA2326674C (fr) |
| WO (1) | WO1999056461A1 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2597227A1 (fr) | 2005-02-09 | 2006-08-17 | March Networks Corporation | Procede et systeme pour la discrimination de contenu a faible sous-bande |
| WO2009051719A2 (fr) * | 2007-10-16 | 2009-04-23 | Thomson Licensing | Procédés et dispositif pour l'encodage et le décodage vidéo de super-blocs partitionnés géométriquement |
| KR20090129926A (ko) | 2008-06-13 | 2009-12-17 | 삼성전자주식회사 | 영상 부호화 방법 및 그 장치, 영상 복호화 방법 및 그 장치 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4918523A (en) * | 1987-10-05 | 1990-04-17 | Intel Corporation | Digital video formatting and transmission system and method |
| JPH04181884A (ja) * | 1990-11-16 | 1992-06-29 | Sony Corp | 映像信号記録装置 |
| US5319793A (en) * | 1992-10-21 | 1994-06-07 | International Business Machines Corporation | Method and apparatus for improved compression and recording of color video data in a personal computer using a plurality of lookup tables |
-
1999
- 1999-04-29 WO PCT/US1999/009315 patent/WO1999056461A1/fr active IP Right Grant
- 1999-04-29 JP JP2000546513A patent/JP2002513251A/ja not_active Withdrawn
- 1999-04-29 BR BR9909955-1A patent/BR9909955A/pt not_active IP Right Cessation
- 1999-04-29 CA CA002326674A patent/CA2326674C/fr not_active Expired - Lifetime
- 1999-04-29 EP EP99920146A patent/EP1075759A4/fr not_active Withdrawn
- 1999-04-29 AU AU37713/99A patent/AU753002B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CA2326674A1 (fr) | 1999-11-04 |
| AU3771399A (en) | 1999-11-16 |
| WO1999056461A1 (fr) | 1999-11-04 |
| AU753002B2 (en) | 2002-10-03 |
| JP2002513251A (ja) | 2002-05-08 |
| EP1075759A1 (fr) | 2001-02-14 |
| BR9909955A (pt) | 2000-12-26 |
| EP1075759A4 (fr) | 2009-01-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20190429 |