FR2329124B1 - - Google Patents
Info
- Publication number
- FR2329124B1 FR2329124B1 FR7532628A FR7532628A FR2329124B1 FR 2329124 B1 FR2329124 B1 FR 2329124B1 FR 7532628 A FR7532628 A FR 7532628A FR 7532628 A FR7532628 A FR 7532628A FR 2329124 B1 FR2329124 B1 FR 2329124B1
- Authority
- FR
- France
- 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
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)
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
| GB4178876A GB1527276A (en) | 1975-10-24 | 1976-10-07 | 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 |
| CA263,732A CA1089100A (fr) | 1975-10-24 | 1976-10-19 | Systeme de transformation a matrice servant a coder et a decoder des images |
| IT2852876A IT1073358B (it) | 1975-10-24 | 1976-10-21 | Codificatore-decodificatore di immagini impiegante una matrice di trasformazione con la contribuzione equilibrata di piu' punti dell'immagine per la formazione di un punto deella trasformazione |
| SU762415452A SU784816A3 (ru) | 1975-10-24 | 1976-10-22 | Устройство дл передачи и приема кодированного сигнала изображени |
| BR7607077A BR7607077A (pt) | 1975-10-24 | 1976-10-22 | Codificador e decodificador de imagens de transformada matricial com ponderacao das contribuicoes dos pontos da imagem na formacao da transformada |
| DE19762647774 DE2647774C3 (de) | 1975-10-24 | 1976-10-22 | Schaltungsanordnung zur Kodierung und Dekodierung von Bildern durch Matrizentransformation mit gewichtetem Beitrag mehrerer Bildpunkte zu einem transformierten Bildpunkt |
| PL19321676A PL108988B1 (en) | 1975-10-24 | 1976-10-23 | Image coder-decoder,employing matrix transformation with weighted representation of image points in transform points |
| MX16677276A MX144485A (es) | 1975-10-24 | 1976-10-25 | Mejoras en sistema para codificar y descodificar imagenes usando una transformacion matricial |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 (2)
| Publication Number | Publication Date |
|---|---|
| FR2329124A1 FR2329124A1 (fr) | 1977-05-20 |
| FR2329124B1 true FR2329124B1 (fr) | 1981-01-02 |
Family
ID=9161629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7532628A Granted 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 |
Country Status (9)
| Country | Link |
|---|---|
| BR (1) | BR7607077A (fr) |
| CA (1) | CA1089100A (fr) |
| DE (1) | DE2647774C3 (fr) |
| FR (1) | FR2329124A1 (fr) |
| GB (1) | GB1527276A (fr) |
| IT (1) | IT1073358B (fr) |
| MX (1) | MX144485A (fr) |
| PL (1) | PL108988B1 (fr) |
| SU (1) | SU784816A3 (fr) |
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 |
| EP0006748B1 (fr) * | 1978-06-26 | 1982-06-23 | Environmental Research Institute Of Michigan | Appareil et procédé pour produire la transformation d'une première matrice de données en une seconde matrice de données |
| EP0107426B1 (fr) * | 1982-10-14 | 1987-01-21 | British Telecommunications | Transmission d'images |
| JPS60153264A (ja) * | 1984-01-20 | 1985-08-12 | Ricoh Co Ltd | 中間調画像伝送方式 |
| DE3577172D1 (de) * | 1984-05-21 | 1990-05-17 | Siemens Ag | Verfahren zur uebertragung 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/fr not_active Expired
- 1976-10-21 IT IT2852876A patent/IT1073358B/it active
- 1976-10-22 DE DE19762647774 patent/DE2647774C3/de not_active Expired
- 1976-10-22 SU SU762415452A patent/SU784816A3/ru active
- 1976-10-22 BR BR7607077A patent/BR7607077A/pt unknown
- 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 |
|---|---|
| MX144485A (es) | 1981-10-20 |
| IT1073358B (it) | 1985-04-17 |
| DE2647774B2 (de) | 1980-06-26 |
| DE2647774C3 (de) | 1981-07-09 |
| BR7607077A (pt) | 1977-09-06 |
| PL108988B1 (en) | 1980-05-31 |
| GB1527276A (en) | 1978-10-04 |
| DE2647774A1 (de) | 1977-04-28 |
| PL193216A1 (pl) | 1978-01-30 |
| FR2329124A1 (fr) | 1977-05-20 |
| SU784816A3 (ru) | 1980-11-30 |
| CA1089100A (fr) | 1980-11-04 |