IT7968804A0 - Dispositivo per il trattamento di un segnale d analisi d immagine - Google Patents
Dispositivo per il trattamento di un segnale d analisi d immagineInfo
- Publication number
- IT7968804A0 IT7968804A0 IT7968804A IT6880479A IT7968804A0 IT 7968804 A0 IT7968804 A0 IT 7968804A0 IT 7968804 A IT7968804 A IT 7968804A IT 6880479 A IT6880479 A IT 6880479A IT 7968804 A0 IT7968804 A0 IT 7968804A0
- Authority
- IT
- Italy
- Prior art keywords
- treatment
- image analysis
- analysis signal
- signal
- image
- Prior art date
Links
- 238000010191 image analysis Methods 0.000 title 1
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
- H04N1/403—Discrimination between the two tones in the picture signal of a two-tone original
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
- Image Input (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7827070A FR2437125A1 (fr) | 1978-09-21 | 1978-09-21 | Dispositif de traitement d'un signal d'analyse d'image |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7968804A0 true IT7968804A0 (it) | 1979-09-12 |
IT1119159B IT1119159B (it) | 1986-03-03 |
Family
ID=9212874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT68804/79A IT1119159B (it) | 1978-09-21 | 1979-09-12 | Dispositivo per il trattamento di un segnale d'analisi d'immagine |
Country Status (11)
Country | Link |
---|---|
US (1) | US4272789A (it) |
JP (1) | JPS5542492A (it) |
BE (1) | BE878535A (it) |
CA (1) | CA1126852A (it) |
DE (1) | DE2937340C3 (it) |
FR (1) | FR2437125A1 (it) |
GB (1) | GB2030818B (it) |
IE (1) | IE48554B1 (it) |
IT (1) | IT1119159B (it) |
LU (1) | LU81701A1 (it) |
NL (1) | NL182191C (it) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4516174A (en) * | 1980-03-10 | 1985-05-07 | Ricoh Company, Ltd. | Video signal regulating apparatus |
US4439789A (en) * | 1980-04-11 | 1984-03-27 | Coulter Systems Corporation | Binary scan system |
JPS5762466A (en) * | 1980-10-03 | 1982-04-15 | Canon Inc | Original reader |
JPS5784670A (en) * | 1980-11-17 | 1982-05-27 | Fujitsu Ltd | Video signal read-in system |
JPS57188177A (en) * | 1981-05-15 | 1982-11-19 | Fuji Xerox Co Ltd | Picture signal processing device |
US4442544A (en) * | 1981-07-09 | 1984-04-10 | Xerox Corporation | Adaptive thresholder |
JPS5876899A (ja) * | 1981-10-31 | 1983-05-10 | 株式会社東芝 | 音声区間検出装置 |
NL8300686A (nl) * | 1983-02-24 | 1984-09-17 | Philips Nv | Inrichting voor het omzetten van een analoog videosignaal in een tweewaardig signaal. |
DE3413651C3 (de) * | 1983-04-12 | 1997-11-20 | Canon Kk | Bildsignalverarbeitungsgerät |
DE3433493A1 (de) * | 1983-09-12 | 1985-04-04 | Ricoh Co., Ltd., Tokio/Tokyo | System zur digitalisierung von bildsignalen |
SE8404576L (sv) * | 1983-09-23 | 1985-03-24 | American Telephone & Telegraph | Detaljdetektor for maskinvideo |
JPS60124173A (ja) * | 1983-12-09 | 1985-07-03 | Canon Inc | 画像処理装置 |
US4600951A (en) * | 1983-12-20 | 1986-07-15 | At&T Technologies, Inc. | Scanning sample, signal generation, data digitizing and retiming system |
JPS61121313A (ja) * | 1984-11-16 | 1986-06-09 | 松下電器産業株式会社 | 金属化フイルムコンデンサ |
US4644410A (en) * | 1985-03-11 | 1987-02-17 | R. A. McDonald | Dynamic threshold binary generator |
US4704637A (en) * | 1985-06-21 | 1987-11-03 | Canon Kabushiki Kaisha | Image processing apparatus |
JPS6297079A (ja) * | 1985-10-24 | 1987-05-06 | Hitachi Ltd | ビデオ信号の2値化回路 |
US4868670A (en) * | 1987-07-24 | 1989-09-19 | Eastman Kodak Company | Apparatus and method for improving the compressibility of an enhanced image through use of a momentarily varying threshold level |
US4982294A (en) * | 1987-07-24 | 1991-01-01 | Eastman Kodak Company | Apparatus for enhancing and thresholding scanned microfilm images and methods for use therein |
US4853795A (en) * | 1987-07-24 | 1989-08-01 | Eastman Kodak Company | Forward look ahead techniques for tracking background and noise levels in scanned video images |
US4908875A (en) * | 1989-03-21 | 1990-03-13 | Hughes Aircraft Company | Adaptive thresholding technique |
US5872468A (en) * | 1997-06-12 | 1999-02-16 | Northern Telecom Limited | Level detector circuit, interface and method for interpreting and processing multi-level signals |
EP0989738A1 (en) * | 1998-09-22 | 2000-03-29 | Hewlett-Packard Company | Document analysis method to detect BW/color areas and corresponding scanning device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3267293A (en) * | 1963-04-25 | 1966-08-16 | Sperry Rand Corp | Character recognition circuit |
US3472958A (en) * | 1966-08-01 | 1969-10-14 | Xerox Corp | Facsimile system |
US3534334A (en) * | 1967-06-20 | 1970-10-13 | Ibm | Automatic control of a threshold in the digitization of an analog signal |
US3566281A (en) * | 1968-05-21 | 1971-02-23 | Ibm | Electric pulse wave clipping circuitry |
GB1383740A (en) * | 1971-02-25 | 1974-02-12 | Image Analysing Computers Ltd | Detection devices for image analysis systems |
US3723649A (en) * | 1971-04-27 | 1973-03-27 | Electronic Image Syst Corp | Adaptive binary state decision system |
US3987413A (en) * | 1975-01-22 | 1976-10-19 | Xerox Corporation | Detection system |
US4012715A (en) * | 1975-10-02 | 1977-03-15 | Burroughs Corporation | Adaptive information signal discriminator |
-
1978
- 1978-09-21 FR FR7827070A patent/FR2437125A1/fr active Granted
-
1979
- 1979-08-28 GB GB7929719A patent/GB2030818B/en not_active Expired
- 1979-08-30 US US06/070,760 patent/US4272789A/en not_active Expired - Lifetime
- 1979-08-31 BE BE1/9510A patent/BE878535A/fr not_active IP Right Cessation
- 1979-09-11 JP JP11663979A patent/JPS5542492A/ja active Granted
- 1979-09-12 NL NLAANVRAGE7906818,A patent/NL182191C/xx not_active IP Right Cessation
- 1979-09-12 IT IT68804/79A patent/IT1119159B/it active
- 1979-09-14 DE DE2937340A patent/DE2937340C3/de not_active Expired
- 1979-09-19 LU LU81701A patent/LU81701A1/fr unknown
- 1979-09-20 IE IE1783/79A patent/IE48554B1/en unknown
- 1979-09-20 CA CA336,049A patent/CA1126852A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA1126852A (fr) | 1982-06-29 |
NL182191C (nl) | 1988-01-18 |
JPH022347B2 (it) | 1990-01-17 |
FR2437125B1 (it) | 1981-02-13 |
IT1119159B (it) | 1986-03-03 |
NL182191B (nl) | 1987-08-17 |
US4272789A (en) | 1981-06-09 |
IE791783L (en) | 1980-03-21 |
IE48554B1 (en) | 1985-03-06 |
GB2030818B (en) | 1983-03-23 |
DE2937340B2 (de) | 1981-05-14 |
FR2437125A1 (fr) | 1980-04-18 |
LU81701A1 (fr) | 1980-04-21 |
JPS5542492A (en) | 1980-03-25 |
NL7906818A (nl) | 1980-03-25 |
DE2937340C3 (de) | 1982-01-21 |
BE878535A (fr) | 1980-02-29 |
DE2937340A1 (de) | 1980-03-27 |
GB2030818A (en) | 1980-04-10 |
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