FR2330084A1 - Systeme electronique pour la lecture de symboles - Google Patents

Systeme electronique pour la lecture de symboles

Info

Publication number
FR2330084A1
FR2330084A1 FR7631863A FR7631863A FR2330084A1 FR 2330084 A1 FR2330084 A1 FR 2330084A1 FR 7631863 A FR7631863 A FR 7631863A FR 7631863 A FR7631863 A FR 7631863A FR 2330084 A1 FR2330084 A1 FR 2330084A1
Authority
FR
France
Prior art keywords
electronic system
reading symbols
reading
symbols
electronic
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.)
Granted
Application number
FR7631863A
Other languages
English (en)
Other versions
FR2330084B1 (fr
Inventor
Ercole Giuliano
Orazio Paita
Luigi Stringa
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.)
Elsag International BV
Original Assignee
Elsag International BV
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 Elsag International BV filed Critical Elsag International BV
Publication of FR2330084A1 publication Critical patent/FR2330084A1/fr
Application granted granted Critical
Publication of FR2330084B1 publication Critical patent/FR2330084B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G06V30/16—Image preprocessing
    • G06V30/162—Quantising the image signal
    • 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)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Character Input (AREA)
  • Image Analysis (AREA)
  • Image Input (AREA)
  • Image Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Geophysics And Detection Of Objects (AREA)
FR7631863A 1975-11-03 1976-10-22 Systeme electronique pour la lecture de symboles Granted FR2330084A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT69715/75A IT1055651B (it) 1975-11-03 1975-11-03 Sistema elettronico per la lettura di simboli

Publications (2)

Publication Number Publication Date
FR2330084A1 true FR2330084A1 (fr) 1977-05-27
FR2330084B1 FR2330084B1 (fr) 1979-07-20

Family

ID=11312685

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7631863A Granted FR2330084A1 (fr) 1975-11-03 1976-10-22 Systeme electronique pour la lecture de symboles

Country Status (14)

Country Link
US (1) US4047152A (fr)
JP (1) JPS5286734A (fr)
AU (1) AU498123B2 (fr)
BE (1) BE847800A (fr)
CA (1) CA1066806A (fr)
DE (1) DE2648641C3 (fr)
DK (1) DK147837C (fr)
FR (1) FR2330084A1 (fr)
GB (1) GB1520368A (fr)
IT (1) IT1055651B (fr)
NL (1) NL166564C (fr)
NO (1) NO149903C (fr)
SE (1) SE434441B (fr)
ZA (1) ZA766388B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2398352A1 (fr) * 1977-07-20 1979-02-16 Ibm Circuit de lecture optique
FR2466153A1 (fr) * 1979-09-21 1981-03-27 Thomson Csf Dispositif de decision noir ou blanc a seuil autoadaptatif pour systeme d'analyse de document et emetteur de telecopie comportant un tel dispositif
FR2484111A1 (fr) * 1980-06-06 1981-12-11 Thomson Csf Dispositif d'analyse optique d'un document et circuit de filtrage destine a un tel dispositif

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4433380A (en) * 1975-11-25 1984-02-21 Philips Medical Systems, Inc. Tomographic scanner
JPS5375735A (en) * 1976-12-16 1978-07-05 Hajime Sangyo Information processor
US4162481A (en) * 1976-12-22 1979-07-24 Recognition Equipment Incorporated Adaptive correlator for video processing
US4124870A (en) * 1977-03-31 1978-11-07 International Business Machines Corporation Method for improving print quality of coarse-scan/fine-print character reproduction
US4193096A (en) * 1977-04-04 1980-03-11 Xerox Corporation Half tone encoder/decoder
JPS5537092A (en) * 1978-09-05 1980-03-14 Ibm Mode switch for setting threshold value
SE422714B (sv) * 1979-01-16 1982-03-22 Ibm Svenska Ab Anordning med styrdator for optisk teckenlosning, vilken styrdator bl a bereknar startpunkter for identifiering av ett tecken
US4290049A (en) * 1979-09-10 1981-09-15 Environmental Research Institute Of Michigan Dynamic data correction generator for an image analyzer system
US4464788A (en) * 1979-09-10 1984-08-07 Environmental Research Institute Of Michigan Dynamic data correction generator for an image analyzer system
US4298858A (en) * 1980-03-27 1981-11-03 The United States Of America As Represented By The Secretary Of The Air Force Method and apparatus for augmenting binary patterns
US4408343A (en) * 1981-02-27 1983-10-04 Burroughs Corporation Image enhancement for optical character readers
US4516263A (en) * 1982-04-30 1985-05-07 The Charles Stark Draper Laboratory, Inc. Spatially integral, video signal processor
US4685145A (en) * 1984-12-07 1987-08-04 Fingermatrix, Inc. Conversion of an image represented by a field of pixels in a gray scale to a field of pixels in binary scale
US4723298A (en) * 1985-03-27 1988-02-02 Fingermatrix, Inc. Image compression technique
US4771468A (en) * 1986-04-17 1988-09-13 International Business Machines Corporation System for automatic inspection of periodic patterns
US4969198A (en) * 1986-04-17 1990-11-06 International Business Machines Corporation System for automatic inspection of periodic patterns
US4806741A (en) * 1986-07-16 1989-02-21 Telesis Controls Corporation Electronic code enhancement for code readers
JPH01501514A (ja) * 1986-11-25 1989-05-25 ゾーン・テクノロジー・ピーティーワイ・リミテッド デジタル・イメージ獲得システム
US4811414A (en) * 1987-02-27 1989-03-07 C.F.A. Technologies, Inc. Methods for digitally noise averaging and illumination equalizing fingerprint images
US4933976A (en) * 1988-01-25 1990-06-12 C.F.A. Technologies, Inc. System for generating rolled fingerprint images
US5647026A (en) * 1991-10-29 1997-07-08 Eastman Kodak Company Uniformity correction and threshold or halftoning conversion unit and method
US5474827A (en) * 1994-03-23 1995-12-12 Minnesota Mining And Manufacturing Company Retroreflective article and method of making the same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3778768A (en) * 1971-08-27 1973-12-11 Little Inc A Character detection system
US3737855A (en) * 1971-09-30 1973-06-05 Ibm Character video enhancement system
US4003024A (en) * 1975-10-14 1977-01-11 Rockwell International Corporation Two-dimensional binary data enhancement system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2398352A1 (fr) * 1977-07-20 1979-02-16 Ibm Circuit de lecture optique
FR2466153A1 (fr) * 1979-09-21 1981-03-27 Thomson Csf Dispositif de decision noir ou blanc a seuil autoadaptatif pour systeme d'analyse de document et emetteur de telecopie comportant un tel dispositif
FR2484111A1 (fr) * 1980-06-06 1981-12-11 Thomson Csf Dispositif d'analyse optique d'un document et circuit de filtrage destine a un tel dispositif

Also Published As

Publication number Publication date
NO763635L (fr) 1977-05-04
BE847800A (fr) 1977-02-14
DK478476A (da) 1977-05-04
DK147837C (da) 1985-06-24
DK147837B (da) 1984-12-17
US4047152A (en) 1977-09-06
GB1520368A (en) 1978-08-09
DE2648641B2 (de) 1979-09-20
CA1066806A (fr) 1979-11-20
AU498123B2 (en) 1979-02-08
FR2330084B1 (fr) 1979-07-20
SE7610785L (sv) 1977-05-04
NO149903B (no) 1984-04-02
DE2648641A1 (de) 1977-05-26
DE2648641C3 (de) 1980-07-03
SE434441B (sv) 1984-07-23
NL166564C (nl) 1981-08-17
AU1887976A (en) 1978-04-27
IT1055651B (it) 1982-01-11
ZA766388B (en) 1977-10-26
NL166564B (nl) 1981-03-16
JPS5286734A (en) 1977-07-19
NO149903C (no) 1984-07-11
NL7612165A (nl) 1977-05-05

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Legal Events

Date Code Title Description
ST Notification of lapse