CA1089100A - Image coder-decoder using a matrix transform with weighted contribution of several points of the image to the formation of one point of the transform - Google Patents
Image coder-decoder using a matrix transform with weighted contribution of several points of the image to the formation of one point of the transformInfo
- Publication number
- CA1089100A CA1089100A CA263,732A CA263732A CA1089100A CA 1089100 A CA1089100 A CA 1089100A CA 263732 A CA263732 A CA 263732A CA 1089100 A CA1089100 A CA 1089100A
- Authority
- CA
- Canada
- Prior art keywords
- matrix
- coefficients
- order
- samples
- forming
- 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
Links
- 239000011159 matrix material Substances 0.000 title claims abstract description 129
- 230000015572 biosynthetic process Effects 0.000 title description 4
- 238000005070 sampling Methods 0.000 claims abstract description 3
- 239000000543 intermediate Substances 0.000 claims abstract 26
- 230000009466 transformation Effects 0.000 description 27
- 230000015654 memory Effects 0.000 description 11
- 238000007906 compression Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 238000000844 transformation Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 241000949473 Correa Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004422 calculation algorithm Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 235000019557 luminance Nutrition 0.000 description 2
- 229940050561 matrix product Drugs 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 241000272470 Circus Species 0.000 description 1
- ZVQOOHYFBIDMTQ-UHFFFAOYSA-N [methyl(oxido){1-[6-(trifluoromethyl)pyridin-3-yl]ethyl}-lambda(6)-sulfanylidene]cyanamide Chemical compound N#CN=S(C)(=O)C(C)C1=CC=C(C(F)(F)F)N=C1 ZVQOOHYFBIDMTQ-UHFFFAOYSA-N 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 230000017105 transposition Effects 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
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 (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR75-32628 | 1975-10-24 | ||
| FR7532628A FR2329124A1 (fr) | 1975-10-24 | 1975-10-24 | Codeur-decodeur d'images a transformee matricielle avec ponderation des contributions des points de l'image a la formation de la transformee |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1089100A true CA1089100A (en) | 1980-11-04 |
Family
ID=9161629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA263,732A Expired CA1089100A (en) | 1975-10-24 | 1976-10-19 | Image coder-decoder using a matrix transform with weighted contribution of several points of the image to the formation of one point of the transform |
Country Status (9)
| Country | Link |
|---|---|
| BR (1) | BR7607077A (pl) |
| CA (1) | CA1089100A (pl) |
| DE (1) | DE2647774C3 (pl) |
| FR (1) | FR2329124A1 (pl) |
| GB (1) | GB1527276A (pl) |
| IT (1) | IT1073358B (pl) |
| MX (1) | MX144485A (pl) |
| PL (1) | PL108988B1 (pl) |
| SU (1) | SU784816A3 (pl) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2009568B (en) * | 1977-11-28 | 1982-03-24 | Nippon Telegraph & Telephone | Picture signal coding apparatus |
| DE2963153D1 (en) * | 1978-06-26 | 1982-08-12 | Environmental Res Inst | Apparatus and method for generating a transformation of a first data matrix to form a second data matrix |
| ATE25177T1 (de) * | 1982-10-14 | 1987-02-15 | British Telecomm | Bilduebertragung. |
| JPS60153264A (ja) * | 1984-01-20 | 1985-08-12 | Ricoh Co Ltd | 中間調画像伝送方式 |
| EP0165488B1 (de) * | 1984-05-21 | 1990-04-11 | Siemens Aktiengesellschaft | Verfahren zur Übertragung von Fernsehbildern |
| FR2606187B1 (fr) * | 1986-10-31 | 1988-12-09 | Thomson Grand Public | Procede et dispositif de reduction du bruit engendre par un codeur-decodeur d'images numeriques operant par blocs |
-
1975
- 1975-10-24 FR FR7532628A patent/FR2329124A1/fr active Granted
-
1976
- 1976-10-07 GB GB4178876A patent/GB1527276A/en not_active Expired
- 1976-10-19 CA CA263,732A patent/CA1089100A/en not_active Expired
- 1976-10-21 IT IT2852876A patent/IT1073358B/it active
- 1976-10-22 SU SU762415452A patent/SU784816A3/ru active
- 1976-10-22 BR BR7607077A patent/BR7607077A/pt unknown
- 1976-10-22 DE DE19762647774 patent/DE2647774C3/de not_active Expired
- 1976-10-23 PL PL19321676A patent/PL108988B1/pl unknown
- 1976-10-25 MX MX16677276A patent/MX144485A/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL193216A1 (pl) | 1978-01-30 |
| GB1527276A (en) | 1978-10-04 |
| DE2647774B2 (de) | 1980-06-26 |
| PL108988B1 (en) | 1980-05-31 |
| FR2329124A1 (fr) | 1977-05-20 |
| FR2329124B1 (pl) | 1981-01-02 |
| MX144485A (es) | 1981-10-20 |
| DE2647774A1 (de) | 1977-04-28 |
| SU784816A3 (ru) | 1980-11-30 |
| BR7607077A (pt) | 1977-09-06 |
| IT1073358B (it) | 1985-04-17 |
| DE2647774C3 (de) | 1981-07-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |