NO314709B1 - Fremgangsmåte og anordning til behandling av et sett av transformkoeffisienter - Google Patents
Fremgangsmåte og anordning til behandling av et sett av transformkoeffisienter Download PDFInfo
- Publication number
- NO314709B1 NO314709B1 NO19944138A NO944138A NO314709B1 NO 314709 B1 NO314709 B1 NO 314709B1 NO 19944138 A NO19944138 A NO 19944138A NO 944138 A NO944138 A NO 944138A NO 314709 B1 NO314709 B1 NO 314709B1
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- Norway
- Prior art keywords
- parity
- transform
- transform coefficients
- block
- coefficients
- Prior art date
Links
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- 238000000034 method Methods 0.000 title claims description 40
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
- G06F17/147—Discrete orthonormal transforms, e.g. discrete cosine transform, discrete sine transform, and variations therefrom, e.g. modified discrete cosine transform, integer transforms approximating the discrete cosine transform
-
- 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
- H04N19/169—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
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
-
- 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
- H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
- H04N19/45—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder performing compensation of the inverse transform mismatch, e.g. Inverse Discrete Cosine Transform [IDCT] mismatch
-
- 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
-
- 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
- H04N19/85—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
- H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
- H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
-
- 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
- H04N19/65—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using error resilience
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Discrete Mathematics (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Data Mining & Analysis (AREA)
- Software Systems (AREA)
- Databases & Information Systems (AREA)
- General Engineering & Computer Science (AREA)
- Algebra (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Color Television Systems (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Television Signal Processing For Recording (AREA)
- Complex Calculations (AREA)
- Error Detection And Correction (AREA)
- Image Processing (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Detection And Correction Of Errors (AREA)
- Facsimile Image Signal Circuits (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Radar Systems Or Details Thereof (AREA)
- Color Television Image Signal Generators (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4020393 | 1993-03-01 | ||
| JP5990993 | 1993-03-19 | ||
| PCT/JP1994/000329 WO1994021083A1 (fr) | 1993-03-01 | 1994-03-01 | Methodes et appareils permettant d'eviter les erreurs d'arrondissement lorsque les coefficients de transformation representant un signal de film cinematographique subissent une transformation inverse |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO944138D0 NO944138D0 (no) | 1994-10-31 |
| NO944138L NO944138L (no) | 1994-12-23 |
| NO314709B1 true NO314709B1 (no) | 2003-05-05 |
Family
ID=26379647
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO19944138A NO314709B1 (no) | 1993-03-01 | 1994-10-31 | Fremgangsmåte og anordning til behandling av et sett av transformkoeffisienter |
| NO20010762A NO314710B1 (no) | 1993-03-01 | 2001-02-15 | Anordning og fremgangsmåte til komprimering av et signal for levende bilde,og anordning til ekspansjon et komprimert signal for levendebilde |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO20010762A NO314710B1 (no) | 1993-03-01 | 2001-02-15 | Anordning og fremgangsmåte til komprimering av et signal for levende bilde,og anordning til ekspansjon et komprimert signal for levendebilde |
Country Status (29)
| Country | Link |
|---|---|
| US (2) | US5481553A (fr) |
| EP (5) | EP0903944B1 (fr) |
| JP (2) | JP3610578B2 (fr) |
| KR (1) | KR100287490B1 (fr) |
| CN (1) | CN1076935C (fr) |
| AT (2) | ATE252806T1 (fr) |
| AU (1) | AU673244B2 (fr) |
| BR (1) | BR9404321A (fr) |
| CA (1) | CA2134444C (fr) |
| DE (2) | DE69433272T2 (fr) |
| DK (5) | DK2276258T3 (fr) |
| EG (1) | EG20330A (fr) |
| ES (5) | ES2209032T3 (fr) |
| FI (1) | FI112579B (fr) |
| GR (1) | GR3032133T3 (fr) |
| HK (2) | HK1013575A1 (fr) |
| HU (1) | HU217744B (fr) |
| IL (1) | IL108787A (fr) |
| MY (1) | MY110794A (fr) |
| NO (2) | NO314709B1 (fr) |
| NZ (1) | NZ261907A (fr) |
| OA (1) | OA10108A (fr) |
| PL (1) | PL173287B1 (fr) |
| PT (4) | PT2276258E (fr) |
| RO (1) | RO115926B1 (fr) |
| RU (1) | RU2119727C1 (fr) |
| TR (1) | TR28436A (fr) |
| TW (1) | TW224553B (fr) |
| WO (1) | WO1994021083A1 (fr) |
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