CA2046544A1 - Systeme de codage de donnees d'imagerie - Google Patents
Systeme de codage de donnees d'imagerieInfo
- Publication number
- CA2046544A1 CA2046544A1 CA 2046544 CA2046544A CA2046544A1 CA 2046544 A1 CA2046544 A1 CA 2046544A1 CA 2046544 CA2046544 CA 2046544 CA 2046544 A CA2046544 A CA 2046544A CA 2046544 A1 CA2046544 A1 CA 2046544A1
- Authority
- CA
- Canada
- Prior art keywords
- transformation coefficients
- image data
- data encoding
- encoding system
- quantization
- 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
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/59—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution
-
- 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
- H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
-
- 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
- H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
-
- 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
- H04N19/176—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 block, e.g. a macroblock
-
- 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
- H04N19/18—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 set of transform coefficients
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Image Processing (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2180472A JPH0470059A (ja) | 1990-07-10 | 1990-07-10 | 画像データ符号化方法及び装置 |
JP02-180474 | 1990-07-10 | ||
JP02-180472 | 1990-07-10 | ||
JP2180474A JPH0470061A (ja) | 1990-07-10 | 1990-07-10 | 画像データ符号化方法及び装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2046544A1 true CA2046544A1 (fr) | 1992-01-11 |
CA2046544C CA2046544C (fr) | 1995-09-12 |
Family
ID=26499991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2046544 Expired - Fee Related CA2046544C (fr) | 1990-07-10 | 1991-07-09 | Systeme de codage de donnees d'imagerie |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0466475A3 (fr) |
KR (1) | KR940011607B1 (fr) |
CA (1) | CA2046544C (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2940304B2 (ja) * | 1992-06-15 | 1999-08-25 | 松下電器産業株式会社 | 高能率符号化装置および高能率符号化方法および高能率符号化装置の復号装置 |
AUPO329496A0 (en) * | 1996-10-28 | 1996-11-21 | Commonwealth Scientific And Industrial Research Organisation | Image encoding |
DE69936304T2 (de) * | 1998-07-15 | 2008-02-14 | Digital Accelerator Corp., Vancouver | Bereichsbasierte skalierbare bildkodierung |
US6804403B1 (en) | 1998-07-15 | 2004-10-12 | Digital Accelerator Corporation | Region-based scalable image coding |
WO2000010131A1 (fr) | 1998-08-10 | 2000-02-24 | Digital Accelerator Corporation | Ondelettes d'arbre quadratique encastre en compression d'image |
WO2001017268A1 (fr) | 1999-08-27 | 2001-03-08 | Koninklijke Philips Electronics N.V. | Codage echelonnable |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4698689A (en) * | 1986-03-28 | 1987-10-06 | Gte Laboratories Incorporated | Progressive image transmission |
JPH01222576A (ja) * | 1988-03-01 | 1989-09-05 | Teremateiiku Kokusai Kenkyusho:Kk | 画像符号化方法および装置 |
JPH0222982A (ja) * | 1988-07-12 | 1990-01-25 | Mitsubishi Electric Corp | 静止画像伝送装置 |
-
1991
- 1991-07-09 KR KR1019910011589A patent/KR940011607B1/ko not_active IP Right Cessation
- 1991-07-09 CA CA 2046544 patent/CA2046544C/fr not_active Expired - Fee Related
- 1991-07-10 EP EP19910306257 patent/EP0466475A3/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP0466475A2 (fr) | 1992-01-15 |
CA2046544C (fr) | 1995-09-12 |
KR940011607B1 (ko) | 1994-12-22 |
EP0466475A3 (en) | 1993-06-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |