GB1338867A - System for analysing engineering drawings or like documents - Google Patents

System for analysing engineering drawings or like documents

Info

Publication number
GB1338867A
GB1338867A GB1524472A GB1524472A GB1338867A GB 1338867 A GB1338867 A GB 1338867A GB 1524472 A GB1524472 A GB 1524472A GB 1524472 A GB1524472 A GB 1524472A GB 1338867 A GB1338867 A GB 1338867A
Authority
GB
United Kingdom
Prior art keywords
segment
image
scan
data
store
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
Application number
GB1524472A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1338867A publication Critical patent/GB1338867A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/40—Document-oriented image-based pattern recognition
    • G06V30/41—Analysis of document content
    • G06V30/413—Classification of content, e.g. text, photographs or tables
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/40—Document-oriented image-based pattern recognition
    • G06V30/42—Document-oriented image-based pattern recognition based on the type of document
    • G06V30/422—Technical drawings; Geographical maps

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Artificial Intelligence (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Character Input (AREA)
  • Digital Computer Display Output (AREA)
  • Image Processing (AREA)
GB1524472A 1971-04-30 1972-03-30 System for analysing engineering drawings or like documents Expired GB1338867A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00139113A US3805237A (en) 1971-04-30 1971-04-30 Technique for the conversion to digital form of interspersed symbolic and graphic data

Publications (1)

Publication Number Publication Date
GB1338867A true GB1338867A (en) 1973-11-28

Family

ID=22485190

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1524472A Expired GB1338867A (en) 1971-04-30 1972-03-30 System for analysing engineering drawings or like documents

Country Status (5)

Country Link
US (1) US3805237A (https=)
JP (1) JPS529344B1 (https=)
DE (1) DE2220693C3 (https=)
FR (1) FR2151805A5 (https=)
GB (1) GB1338867A (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2191359A (en) * 1981-11-27 1987-12-09 Thomson Csf A recursive method for identifying isotropic zones in a video image; a device for detecting movement and noise in a sequence of images

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083034A (en) * 1976-10-04 1978-04-04 Recognition Equipment Incorporated Plural tracker character detection and boundary location system
US4379282A (en) * 1979-06-01 1983-04-05 Dest Corporation Apparatus and method for separation of optical character recognition data
US4428077A (en) 1979-09-03 1984-01-24 Hitachi, Ltd. Line recognition method
DE3049369A1 (de) * 1979-12-29 1981-09-17 Canon K.K., Tokyo Bildreproduktionsgeraet
DE3019836A1 (de) * 1980-05-23 1982-01-21 Siemens AG, 1000 Berlin und 8000 München Verfahren zum automatischen erkennen von bild- und text- oder graphikbereichen auf druckvorlagen
DE3034099A1 (de) * 1980-09-10 1982-05-19 Computer Gesellschaft Konstanz Mbh, 7750 Konstanz Verfahren und schaltungsanordnung zur segmentierung von zeichen aus einer seriell gelesenen zeichenfolge
DE3107521A1 (de) * 1981-02-27 1982-09-16 Siemens AG, 1000 Berlin und 8000 München Verfahren zum automatischen erkennen von bild- und text- oder graphikbereichen auf druckvorlagen
DE3107655A1 (de) * 1981-02-27 1982-09-16 Siemens AG, 1000 Berlin und 8000 München Verfahren zum auffinden und abgrenzen von textbereichen auf einer vorlage, die text-, graphik- und/oder bildbereiche enthalten kann
DE3113555A1 (de) * 1981-04-03 1982-10-21 Siemens AG, 1000 Berlin und 8000 München Verfahren zum automatischen erkennen von weissbloecken sowie text-, graphik- und/oder graubildbereichen auf druckvorlagen
ATE48196T1 (de) * 1981-04-25 1989-12-15 Image Processing Tech Geraet fuer die automatische trennung eines aufgenommenen bildes in einem visuellen formerkennungssystem.
CA1191955A (en) * 1983-01-07 1985-08-13 Michael A. Goolsbey Locating individual images in a field for recognition or the like
US4700401A (en) * 1983-02-28 1987-10-13 Dest Corporation Method and apparatus for character recognition employing a dead-band correlator
CA1268547A (en) * 1986-03-31 1990-05-01 Ahmed Mostafa El-Sherbini Thresholding algorithm selection apparatus
JPH06101049B2 (ja) * 1988-03-25 1994-12-12 インターナシヨナル・ビジネス・マシーンズ・コーポレーシヨン 文字列検出方法
US5038381A (en) * 1988-07-11 1991-08-06 New Dest Corporation Image/text filtering system and method
US5050222A (en) * 1990-05-21 1991-09-17 Eastman Kodak Company Polygon-based technique for the automatic classification of text and graphics components from digitized paper-based forms
JPH0772861B2 (ja) * 1990-08-24 1995-08-02 富士ゼロックス株式会社 プログラム作成装置
US5689342A (en) * 1994-11-17 1997-11-18 Canon Kabushiki Kaisha Image processing method and apparatus which orders text areas which have been extracted from an image
DE10110208A1 (de) * 2001-03-02 2002-09-19 Siemens Production & Logistics Verfahren zum Spezifizieren, Ausführen und Analysieren von Verfahrensabläufen beim Erkennen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL248121A (https=) * 1957-05-17
US3196398A (en) * 1962-05-21 1965-07-20 Ibm Pattern recognition preprocessing techniques
US3297993A (en) * 1963-12-19 1967-01-10 Ibm Apparatus for generating information regarding the spatial distribution of a function
US3496542A (en) * 1966-10-27 1970-02-17 Control Data Corp Multifont character reading machine
US3496543A (en) * 1967-01-27 1970-02-17 Singer General Precision On-line read/copy data processing system accepting printed and graphic material
US3588822A (en) * 1967-03-06 1971-06-28 Hitachi Ltd Character recognition apparatus for identifying characters by detecting stroke features of the characters
US3564498A (en) * 1969-10-31 1971-02-16 Burroughs Corp Character recognition system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2191359A (en) * 1981-11-27 1987-12-09 Thomson Csf A recursive method for identifying isotropic zones in a video image; a device for detecting movement and noise in a sequence of images

Also Published As

Publication number Publication date
US3805237A (en) 1974-04-16
DE2220693A1 (de) 1972-11-09
JPS529344B1 (https=) 1977-03-15
DE2220693B2 (de) 1980-06-04
FR2151805A5 (https=) 1973-04-20
DE2220693C3 (de) 1981-02-19

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee