NL269949A - - Google Patents
Info
- Publication number
- NL269949A NL269949A NL269949DA NL269949A NL 269949 A NL269949 A NL 269949A NL 269949D A NL269949D A NL 269949DA NL 269949 A NL269949 A NL 269949A
- Authority
- NL
- Netherlands
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K11/00—Methods or arrangements for graph-reading or for converting the pattern of mechanical parameters, e.g. force or presence, into electrical signal
- G06K11/02—Automatic curve followers, i.e. arrangements in which an exploring member or beam is forced to follow the curve
- G06K11/04—Automatic curve followers, i.e. arrangements in which an exploring member or beam is forced to follow the curve using an auxiliary scanning pattern
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/24—Classification techniques
- G06F18/243—Classification techniques relating to the number of classes
- G06F18/24323—Tree-organised classifiers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/14—Image acquisition
- G06V30/144—Image acquisition using a slot moved over the image; using discrete sensing elements at predetermined points; using automatic curve following means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/14—Image acquisition
- G06V30/148—Segmentation of character regions
- G06V30/15—Cutting or merging image elements, e.g. region growing, watershed or clustering-based techniques
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/18—Extraction of features or characteristics of the image
- G06V30/1801—Detecting partial patterns, e.g. edges or contours, or configurations, e.g. loops, corners, strokes or intersections
- G06V30/18076—Detecting partial patterns, e.g. edges or contours, or configurations, e.g. loops, corners, strokes or intersections by analysing connectivity, e.g. edge linking, connected component analysis or slices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/20—Combination of acquisition, preprocessing or recognition functions
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Data Mining & Analysis (AREA)
- Artificial Intelligence (AREA)
- Computer Hardware Design (AREA)
- Life Sciences & Earth Sciences (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Bioinformatics & Computational Biology (AREA)
- Evolutionary Biology (AREA)
- Evolutionary Computation (AREA)
- General Engineering & Computer Science (AREA)
- Character Input (AREA)
- Character Discrimination (AREA)
- Image Analysis (AREA)
- Input From Keyboards Or The Like (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEST12572A DE1135226B (de) | 1957-05-17 | 1957-05-17 | Anordnung zum maschinellen Auswerten von Zeichen |
| DEST12850A DE1114348B (de) | 1957-05-17 | 1957-08-06 | Formelementkombinator zur Durchfuehrung eines Verfahrens zur Zeichenerkennung |
| DEST14739A DE1257458B (de) | 1957-05-17 | 1959-02-05 | Zentrierverfahren fuer die maschinelle Zeichenerkennung |
| DEST16812A DE1225426B (de) | 1957-05-17 | 1960-08-17 | Verfahren und Schaltungsanordnung zur maschinellen Erkennung von Zeichen |
| DEST16975A DE1175471B (de) | 1957-05-17 | 1960-10-05 | Verfahren und Vorrichtung zum maschinellen Erkennen von Zeichen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL269949A true NL269949A (US20070167544A1-20070719-C00007.png) |
Family
ID=27512238
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL268306D NL268306A (US20070167544A1-20070719-C00007.png) | 1957-05-17 | ||
| NL269949D NL269949A (US20070167544A1-20070719-C00007.png) | 1957-05-17 | ||
| NL248121D NL248121A (US20070167544A1-20070719-C00007.png) | 1957-05-17 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL268306D NL268306A (US20070167544A1-20070719-C00007.png) | 1957-05-17 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL248121D NL248121A (US20070167544A1-20070719-C00007.png) | 1957-05-17 |
Country Status (8)
Families Citing this family (45)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL277765A (US20070167544A1-20070719-C00007.png) * | 1961-05-03 | |||
| NL278622A (US20070167544A1-20070719-C00007.png) * | 1961-05-19 | |||
| FR965816A (US20070167544A1-20070719-C00007.png) * | 1961-06-21 | 1950-09-22 | ||
| BE637372A (US20070167544A1-20070719-C00007.png) * | 1962-09-24 | |||
| BE639986A (US20070167544A1-20070719-C00007.png) * | 1962-11-15 | 1900-01-01 | ||
| GB996509A (en) * | 1962-12-31 | 1965-06-30 | Ibm | Electronic servo systems for following the contours of line patterns |
| DE1184534B (de) * | 1963-04-11 | 1964-12-31 | Siemens Ag | Verfahren und Schaltung zur maschinellen Erkennung von Schriftzeichen |
| US3289164A (en) * | 1964-04-29 | 1966-11-29 | Control Data Corp | Character normalizing reading machine |
| US3439213A (en) * | 1964-12-04 | 1969-04-15 | Matsushita Electric Ind Co Ltd | Apparatus for the automatic scanning of line-structured patterns |
| GB1127741A (en) * | 1965-02-03 | 1968-09-18 | Int Computers & Tabulators Ltd | Improvements in or relating to systems for sensing and recognising or analysing data |
| US3541510A (en) * | 1965-03-18 | 1970-11-17 | Fujitsu Ltd | Scanning method and system for recognizing legible characters |
| US3487202A (en) * | 1965-06-30 | 1969-12-30 | Ibm | Image processing system |
| US3526876A (en) * | 1965-10-24 | 1970-09-01 | Ibm | Character separation apparatus for character recognition machines |
| US3517387A (en) * | 1965-10-24 | 1970-06-23 | Ibm | Character isolation apparatus |
| US3500325A (en) * | 1966-01-19 | 1970-03-10 | Ibm | Apparatus for separating closely spaced characters in a character recognition machine |
| US3500324A (en) * | 1966-07-27 | 1970-03-10 | Ibm | Analog segmentation apparatus |
| DE1574694A1 (de) * | 1968-01-08 | 1971-06-16 | Philips Patentverwaltung | Verfahren zur Zeichenerkennung |
| US3611290A (en) * | 1968-06-03 | 1971-10-05 | North American Rockwell | Fingerprint minutiae reading device |
| US3613080A (en) * | 1968-11-08 | 1971-10-12 | Scan Data Corp | Character recognition system utilizing feature extraction |
| FR1599243A (US20070167544A1-20070719-C00007.png) * | 1968-12-12 | 1970-07-15 | ||
| GB1311486A (en) * | 1969-03-31 | 1973-03-28 | Dunlop Holdings Ltd | Floor structures for inflatable boats |
| US3671941A (en) * | 1969-05-31 | 1972-06-20 | Iwatsu Electric Co Ltd | Apparatus for judging and processing branches and or crossings for use in automatic curve tracing system |
| US3638187A (en) * | 1969-05-31 | 1972-01-25 | Iwatsu Electric Co Ltd | Automatic curve tracing system |
| US3671937A (en) * | 1969-05-31 | 1972-06-20 | Iwatsu Electric Co Ltd | Automatic pattern tracing systems |
| US3671936A (en) * | 1969-05-31 | 1972-06-20 | Iwatsu Electric Co Ltd | Discontinuity processing apparatus for automatic curve tracing system |
| US3711717A (en) * | 1970-09-16 | 1973-01-16 | Gerber Scientific Instr Co | Optical line follower |
| US3890596A (en) * | 1970-11-12 | 1975-06-17 | Philips Corp | Method of and device for determining significant points of characters |
| US3805237A (en) * | 1971-04-30 | 1974-04-16 | Ibm | Technique for the conversion to digital form of interspersed symbolic and graphic data |
| US3761876A (en) * | 1971-07-28 | 1973-09-25 | Recognition Equipment Inc | Recognition unit for optical character reading system |
| JPS5437459B2 (US20070167544A1-20070719-C00007.png) * | 1972-01-13 | 1979-11-15 | ||
| JPS5411653B2 (US20070167544A1-20070719-C00007.png) * | 1972-01-27 | 1979-05-16 | ||
| JPS4966034A (US20070167544A1-20070719-C00007.png) * | 1972-10-27 | 1974-06-26 | ||
| US3863218A (en) * | 1973-01-26 | 1975-01-28 | Hitachi Ltd | Pattern feature detection system |
| US3973239A (en) * | 1973-10-17 | 1976-08-03 | Hitachi, Ltd. | Pattern preliminary processing system |
| US3990044A (en) * | 1975-07-07 | 1976-11-02 | The Singer Company | Symbol recognition enhancing apparatus |
| US4162481A (en) * | 1976-12-22 | 1979-07-24 | Recognition Equipment Incorporated | Adaptive correlator for video processing |
| US4119947A (en) * | 1977-07-20 | 1978-10-10 | Howard Noyes Leighton | Optical signal processor |
| DE3005206C2 (de) * | 1980-02-12 | 1983-01-05 | Computer Gesellschaft Konstanz Mbh, 7750 Konstanz | Verfahren zur automatischen Zeichenerkennung |
| US4468809A (en) * | 1981-12-23 | 1984-08-28 | Ncr Corporation | Multiple font OCR reader |
| JPS58134368A (ja) * | 1982-02-05 | 1983-08-10 | Ricoh Co Ltd | 文書画像処理装置 |
| JPS6198069A (ja) * | 1984-10-19 | 1986-05-16 | Canon Inc | 画像処理装置 |
| US5272765A (en) * | 1987-10-21 | 1993-12-21 | Sharp Kabushiki Kaisha | System for processing character images |
| US5136664A (en) * | 1988-02-23 | 1992-08-04 | Bersack Bret B | Pixel rendering |
| US5025479A (en) * | 1988-09-19 | 1991-06-18 | Jose Pastor | Recognition method for character set |
| US8391602B2 (en) * | 2010-04-08 | 2013-03-05 | University Of Calcutta | Character recognition |
Family Cites Families (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA628449A (en) * | 1961-10-03 | Standard Telephones And Cables Mfg. Co. (Canada) | Method for the automatic identification of characters, in particluar printed characters (figures, letters, and the like) | |
| US1815986A (en) * | 1929-06-29 | 1931-07-28 | American Telephone & Telegraph | Telegraph reading machine |
| US2616983A (en) * | 1949-01-03 | 1952-11-04 | Rca Corp | Apparatus for indicia recognition |
| DE1069411B (de) * | 1951-12-27 | 1959-11-19 | IBM Deutschland Internationale Büro-Maschinen Gesellschaft m.b.H., Sindelfingen (Württ.) | Anordnung zum photoelektrischen Abtasten und Auswerten von Zeichen. 24. 12. 5-2. V. St. Amerika |
| DE953474C (de) * | 1952-06-28 | 1956-11-29 | Ibm Deutschland | Verfahren zum lichtelektrischen Ablesen von Schriftzeichen |
| US2897481A (en) * | 1953-12-17 | 1959-07-28 | Intelligent Machines Res Corp | Apparatus for reading |
| FR1104482A (fr) * | 1954-05-10 | 1955-11-21 | Fr D Electronique Et De Cybern | Procédé de lecture photo-numérique et dispositif pour la mise en oeuvre de ce procédé |
| US3000000A (en) * | 1955-05-06 | 1961-09-12 | Gen Electric | Automatic reading system |
| US2992408A (en) * | 1955-05-16 | 1961-07-11 | Gen Electric | Automatic reading system |
| US2964734A (en) * | 1955-07-11 | 1960-12-13 | George P West | Method and apparatus for sensing handwriten or printed characters |
| US2932006A (en) * | 1955-07-21 | 1960-04-05 | Lab For Electronics Inc | Symbol recognition system |
| NL128312C (US20070167544A1-20070719-C00007.png) * | 1955-10-20 | 1900-01-01 | ||
| BE544082A (US20070167544A1-20070719-C00007.png) * | 1956-01-09 | |||
| NL227776A (US20070167544A1-20070719-C00007.png) * | 1956-03-19 | |||
| BE561942A (US20070167544A1-20070719-C00007.png) * | 1956-10-26 | |||
| BE561941A (US20070167544A1-20070719-C00007.png) * | 1956-10-26 | |||
| US2980332A (en) * | 1956-10-26 | 1961-04-18 | Gen Electric | Electronic curve follower and analog computer |
| BE561943A (US20070167544A1-20070719-C00007.png) * | 1956-10-26 | |||
| US2905927A (en) * | 1956-11-14 | 1959-09-22 | Stanley F Reed | Method and apparatus for recognizing words |
| US3074050A (en) * | 1956-12-31 | 1963-01-15 | Ibm | Character recognition machine |
| US3025495A (en) * | 1957-04-17 | 1962-03-13 | Int Standard Electric Corp | Automatic character recognition |
| NL232548A (US20070167544A1-20070719-C00007.png) * | 1957-04-17 | 1900-01-01 | ||
| US2988643A (en) * | 1957-12-14 | 1961-06-13 | Fuji Tsushinki Seizo Kk | Automatic curve tracer |
| NL234579A (US20070167544A1-20070719-C00007.png) * | 1957-12-30 | 1900-01-01 | ||
| NL246120A (US20070167544A1-20070719-C00007.png) * | 1958-12-29 | 1900-01-01 | ||
| US2978675A (en) * | 1959-12-10 | 1961-04-04 | Bell Telephone Labor Inc | Character recognition system |
-
0
- NL NL268306D patent/NL268306A/xx unknown
- BE BE569902D patent/BE569902A/xx unknown
- NL NL269949D patent/NL269949A/xx unknown
- BE BE587299D patent/BE587299A/xx unknown
- NL NL248121D patent/NL248121A/xx unknown
-
1957
- 1957-05-17 DE DEST12572A patent/DE1135226B/de active Pending
- 1957-08-06 DE DEST12850A patent/DE1114348B/de active Pending
-
1958
- 1958-05-06 CH CH5915758A patent/CH366992A/de unknown
- 1958-05-16 GB GB15801/58A patent/GB827822A/en not_active Expired
- 1958-05-16 FR FR1206799D patent/FR1206799A/fr not_active Expired
- 1958-05-16 US US735845A patent/US3088097A/en not_active Expired - Lifetime
- 1958-07-24 CH CH6210058A patent/CH373205A/de unknown
-
1959
- 1959-02-05 DE DEST14739A patent/DE1257458B/de active Pending
-
1960
- 1960-01-26 US US4777A patent/US3234511A/en not_active Expired - Lifetime
- 1960-01-29 GB GB3279/60A patent/GB912634A/en not_active Expired
- 1960-02-05 AT AT90160A patent/AT214490B/de active
- 1960-02-05 CH CH127460A patent/CH379816A/de unknown
- 1960-08-17 DE DEST16812A patent/DE1225426B/de active Pending
- 1960-10-05 DE DEST16975A patent/DE1175471B/de active Pending
-
1961
- 1961-08-10 US US130550A patent/US3234513A/en not_active Expired - Lifetime
- 1961-08-16 GB GB29600/61A patent/GB934558A/en not_active Expired
- 1961-09-27 US US141198A patent/US3245036A/en not_active Expired - Lifetime
- 1961-10-02 CH CH1143761A patent/CH400631A/de unknown
- 1961-10-05 GB GB35907/61A patent/GB994697A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB827822A (en) | 1960-02-10 |
| DE1257458B (de) | 1967-12-28 |
| US3245036A (en) | 1966-04-05 |
| BE569902A (US20070167544A1-20070719-C00007.png) | |
| CH400631A (de) | 1965-10-15 |
| AT214490B (de) | 1961-04-10 |
| GB994697A (en) | 1965-06-10 |
| GB912634A (en) | 1962-12-12 |
| NL248121A (US20070167544A1-20070719-C00007.png) | |
| BE587299A (US20070167544A1-20070719-C00007.png) | |
| DE1175471B (de) | 1964-08-06 |
| CH379816A (de) | 1964-07-15 |
| DE1114348B (de) | 1961-09-28 |
| CH366992A (de) | 1963-01-31 |
| GB934558A (en) | 1963-08-21 |
| US3088097A (en) | 1963-04-30 |
| US3234513A (en) | 1966-02-08 |
| FR1206799A (fr) | 1960-02-11 |
| DE1135226B (de) | 1962-08-23 |
| NL268306A (US20070167544A1-20070719-C00007.png) | |
| DE1225426B (de) | 1966-09-22 |
| CH373205A (de) | 1963-11-15 |
| US3234511A (en) | 1966-02-08 |
