SE457402B - Foerfarande och anordning foer kodning och avkodning av bildinformation - Google Patents
Foerfarande och anordning foer kodning och avkodning av bildinformationInfo
- Publication number
- SE457402B SE457402B SE8700726A SE8700726A SE457402B SE 457402 B SE457402 B SE 457402B SE 8700726 A SE8700726 A SE 8700726A SE 8700726 A SE8700726 A SE 8700726A SE 457402 B SE457402 B SE 457402B
- Authority
- SE
- Sweden
- Prior art keywords
- channel
- switch
- inverse
- coefficients
- coding
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000013139 quantization Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000001131 transforming effect Effects 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000009466 transformation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229920005372 Plexiglas® Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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
- H04N19/60—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
- H04N19/619—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding the transform being operated outside the prediction loop
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8700726A SE457402B (sv) | 1987-02-20 | 1987-02-20 | Foerfarande och anordning foer kodning och avkodning av bildinformation |
| AT88850049T ATE107110T1 (de) | 1987-02-20 | 1988-02-11 | Verfahren und mittel zur kodierung und dekodierung eines bildsignals. |
| DE3889939T DE3889939T2 (de) | 1987-02-20 | 1988-02-11 | Verfahren und Mittel zur Kodierung und Dekodierung eines Bildsignals. |
| EP88850049A EP0279800B1 (de) | 1987-02-20 | 1988-02-11 | Verfahren und Mittel zur Kodierung und Dekodierung eines Bildsignals |
| US07/156,620 US4837617A (en) | 1987-02-20 | 1988-02-17 | Method and means for coding and decoding picture information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8700726A SE457402B (sv) | 1987-02-20 | 1987-02-20 | Foerfarande och anordning foer kodning och avkodning av bildinformation |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE8700726D0 SE8700726D0 (sv) | 1987-02-20 |
| SE8700726L SE8700726L (sv) | 1988-08-21 |
| SE457402B true SE457402B (sv) | 1988-12-19 |
Family
ID=20367613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8700726A SE457402B (sv) | 1987-02-20 | 1987-02-20 | Foerfarande och anordning foer kodning och avkodning av bildinformation |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4837617A (de) |
| EP (1) | EP0279800B1 (de) |
| AT (1) | ATE107110T1 (de) |
| DE (1) | DE3889939T2 (de) |
| SE (1) | SE457402B (de) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| DE3811535A1 (de) * | 1988-04-06 | 1989-10-19 | Philips Patentverwaltung | Hybrid-codierer fuer videosignale |
| US5237316A (en) * | 1990-02-02 | 1993-08-17 | Washington University | Video display with high speed reconstruction and display of compressed images at increased pixel intensity range and retrofit kit for same |
| GB9015426D0 (en) * | 1990-07-13 | 1990-08-29 | Indep Broadcasting Authority | Error protection for variable length codestreams |
| GB9102220D0 (en) * | 1991-02-01 | 1991-03-20 | British Telecomm | Method and apparatus for decoding video signals |
| JP3338460B2 (ja) * | 1991-05-09 | 2002-10-28 | ソニー株式会社 | 映像信号符号化装置及び映像信号符号化方法 |
| US5231484A (en) * | 1991-11-08 | 1993-07-27 | International Business Machines Corporation | Motion video compression system with adaptive bit allocation and quantization |
| FR2692091B1 (fr) * | 1992-06-03 | 1995-04-14 | France Telecom | Procédé et dispositif de dissimulation d'erreurs de transmission de signaux audio-numériques codés par transformée fréquentielle. |
| KR970005831B1 (ko) * | 1992-09-09 | 1997-04-21 | 대우전자 주식회사 | 적응적 프레임/필드 변환 부호화를 이용한 영상 부호화기 |
| JP3257209B2 (ja) * | 1993-11-30 | 2002-02-18 | ソニー株式会社 | ディジタル信号記録回路 |
| US5781888A (en) * | 1996-01-16 | 1998-07-14 | Lucent Technologies Inc. | Perceptual noise shaping in the time domain via LPC prediction in the frequency domain |
| US5812971A (en) * | 1996-03-22 | 1998-09-22 | Lucent Technologies Inc. | Enhanced joint stereo coding method using temporal envelope shaping |
| EP0976251B1 (de) * | 1998-02-13 | 2002-05-22 | Koninklijke Philips Electronics N.V. | Verfahren und vorrichtung zur videokodierung |
| WO2023224300A1 (ko) * | 2022-05-16 | 2023-11-23 | 현대자동차주식회사 | 예측-변환 생략을 이용하는 비디오 코딩을 위한 방법 및 장치 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2625973C3 (de) * | 1976-06-10 | 1981-12-24 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Verfahren und Anordnung zur redundanzvermindernden Transformation von Bildern |
| US4125861A (en) * | 1977-08-18 | 1978-11-14 | Bell Telephone Laboratories, Incorporated | Video signal encoding |
| JPS5992688A (ja) * | 1982-11-19 | 1984-05-28 | Fuji Photo Film Co Ltd | 適応形画像圧縮方式 |
| JPS59200592A (ja) * | 1983-04-27 | 1984-11-13 | Fuji Photo Film Co Ltd | カラ−画像の適応形圧縮方式 |
| FR2575351B1 (fr) * | 1984-12-21 | 1988-05-13 | Thomson Csf | Procede adaptatif de codage et de decodage d'une suite d'images par transformation, et dispositifs pour la mise en oeuvre de ce procede |
| US4723161A (en) * | 1985-03-20 | 1988-02-02 | Nec Corporation | Method and arrangement of coding digital image signals utilizing interframe correlation |
| JP2745301B2 (ja) * | 1986-04-18 | 1998-04-28 | 富士写真フイルム株式会社 | 画像データの直交変換符号化方法 |
| US4704628A (en) * | 1986-07-16 | 1987-11-03 | Compression Labs, Inc. | Combined intraframe and interframe transform coding system |
-
1987
- 1987-02-20 SE SE8700726A patent/SE457402B/sv not_active IP Right Cessation
-
1988
- 1988-02-11 AT AT88850049T patent/ATE107110T1/de not_active IP Right Cessation
- 1988-02-11 EP EP88850049A patent/EP0279800B1/de not_active Expired - Lifetime
- 1988-02-11 DE DE3889939T patent/DE3889939T2/de not_active Expired - Fee Related
- 1988-02-17 US US07/156,620 patent/US4837617A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0279800A3 (en) | 1990-11-28 |
| SE8700726L (sv) | 1988-08-21 |
| DE3889939D1 (de) | 1994-07-14 |
| ATE107110T1 (de) | 1994-06-15 |
| SE8700726D0 (sv) | 1987-02-20 |
| DE3889939T2 (de) | 1995-02-09 |
| EP0279800B1 (de) | 1994-06-08 |
| US4837617A (en) | 1989-06-06 |
| EP0279800A2 (de) | 1988-08-24 |
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