FR2391610B1 - - Google Patents
Info
- Publication number
- FR2391610B1 FR2391610B1 FR7714985A FR7714985A FR2391610B1 FR 2391610 B1 FR2391610 B1 FR 2391610B1 FR 7714985 A FR7714985 A FR 7714985A FR 7714985 A FR7714985 A FR 7714985A FR 2391610 B1 FR2391610 B1 FR 2391610B1
- 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
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
- H04N1/40068—Modification of image resolution, i.e. determining the values of picture elements at new relative positions
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/41—Bandwidth or redundancy reduction
- H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
- Image Processing (AREA)
- Television Systems (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7714985A FR2391610A1 (fr) | 1977-05-16 | 1977-05-16 | Perfectionnements aux procedes et dispositifs de restitution et de reproduction d'images |
GB19573/78A GB1604501A (en) | 1977-05-16 | 1978-05-15 | Reconstitution or restoration of images |
US05/906,211 US4231095A (en) | 1977-05-16 | 1978-05-15 | Remote reproduction of images |
DE19782821237 DE2821237A1 (de) | 1977-05-16 | 1978-05-16 | Verfahren und vorrichtung zur wiedergabe von bildern |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7714985A FR2391610A1 (fr) | 1977-05-16 | 1977-05-16 | Perfectionnements aux procedes et dispositifs de restitution et de reproduction d'images |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2391610A1 FR2391610A1 (fr) | 1978-12-15 |
FR2391610B1 true FR2391610B1 (fr) | 1982-04-23 |
Family
ID=9190870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7714985A Granted FR2391610A1 (fr) | 1977-05-16 | 1977-05-16 | Perfectionnements aux procedes et dispositifs de restitution et de reproduction d'images |
Country Status (4)
Country | Link |
---|---|
US (1) | US4231095A (fr) |
DE (1) | DE2821237A1 (fr) |
FR (1) | FR2391610A1 (fr) |
GB (1) | GB1604501A (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55120265A (en) * | 1979-03-07 | 1980-09-16 | Ricoh Co Ltd | Picture forecasting restoring method |
JPS55162179A (en) * | 1979-06-02 | 1980-12-17 | Ricoh Co Ltd | Picture processing method |
JPS5666971A (en) * | 1979-11-05 | 1981-06-05 | Dainippon Screen Mfg Co Ltd | Picture data compressing method |
US4280144A (en) * | 1979-12-03 | 1981-07-21 | International Business Machines Corporation | Coarse scan/fine print algorithm |
US4384336A (en) * | 1980-08-29 | 1983-05-17 | Polaroid Corporation | Method and apparatus for lightness imaging |
US4827445A (en) * | 1982-02-18 | 1989-05-02 | University Of North Carolina | Image buffer having logic-enhanced pixel memory cells and method for setting values therein |
US4590465A (en) * | 1982-02-18 | 1986-05-20 | Henry Fuchs | Graphics display system using logic-enhanced pixel memory cells |
US4783649A (en) * | 1982-08-13 | 1988-11-08 | University Of North Carolina | VLSI graphics display image buffer using logic enhanced pixel memory cells |
JPH0824341B2 (ja) * | 1985-10-28 | 1996-03-06 | 株式会社日立製作所 | 画像データ符号化方法 |
US4742399A (en) * | 1985-11-01 | 1988-05-03 | Dainippon Screen Mfg. Co., Ltd. | Method of and apparatus for generating high-resolution bilevel image data |
US4907152A (en) * | 1986-09-25 | 1990-03-06 | The Boeing Company | Method of improving CT resolution |
US4998288A (en) * | 1989-12-26 | 1991-03-05 | Harris Semiconductor Patents, Inc. | Two dimensional hybrid digital convolver |
US5815605A (en) * | 1992-07-17 | 1998-09-29 | Ricoh Company, Ltd. | Image processing system and method |
GB2295482B (en) * | 1993-06-10 | 1997-12-10 | Lightworks Editing Systems Ltd | Video editing systems |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3916095A (en) * | 1972-02-17 | 1975-10-28 | Dacom Inc | Dual-line data compression method and system for compressing, transmitting and reproducing facsimile data |
JPS5423521B2 (fr) * | 1973-06-25 | 1979-08-14 | ||
GB1418839A (en) * | 1973-09-26 | 1975-12-24 | Takachiho Koeki Kk | Restoration system for pattern information using and-type logic ' |
JPS6043703B2 (ja) * | 1976-02-27 | 1985-09-30 | 富士ゼロックス株式会社 | 2値信号フアクシミリデ−タ圧縮方式 |
-
1977
- 1977-05-16 FR FR7714985A patent/FR2391610A1/fr active Granted
-
1978
- 1978-05-15 GB GB19573/78A patent/GB1604501A/en not_active Expired
- 1978-05-15 US US05/906,211 patent/US4231095A/en not_active Expired - Lifetime
- 1978-05-16 DE DE19782821237 patent/DE2821237A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
GB1604501A (en) | 1981-12-09 |
DE2821237A1 (de) | 1978-11-23 |
US4231095A (en) | 1980-10-28 |
FR2391610A1 (fr) | 1978-12-15 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |