FR2673739B1 - Procede et dispositif de traitement d'un signal electrique analogique issu d'un capteur d'images a balayage electronique. - Google Patents

Procede et dispositif de traitement d'un signal electrique analogique issu d'un capteur d'images a balayage electronique.

Info

Publication number
FR2673739B1
FR2673739B1 FR9102706A FR9102706A FR2673739B1 FR 2673739 B1 FR2673739 B1 FR 2673739B1 FR 9102706 A FR9102706 A FR 9102706A FR 9102706 A FR9102706 A FR 9102706A FR 2673739 B1 FR2673739 B1 FR 2673739B1
Authority
FR
France
Prior art keywords
processing
image sensor
electrical signal
scanned image
electronically scanned
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 - Fee Related
Application number
FR9102706A
Other languages
English (en)
Other versions
FR2673739A1 (fr
Inventor
Jean Chanaud
Trevor Claybrough
Benoit Moulas
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.)
Digital Vision AB
Original Assignee
Digital Vision AB
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 Digital Vision AB filed Critical Digital Vision AB
Priority to FR9102706A priority Critical patent/FR2673739B1/fr
Publication of FR2673739A1 publication Critical patent/FR2673739A1/fr
Application granted granted Critical
Publication of FR2673739B1 publication Critical patent/FR2673739B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/10851—Circuits for pulse shaping, amplifying, eliminating noise signals, checking the function of the sensing device
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/20—Image preprocessing
    • G06V10/28—Quantising the image, e.g. histogram thresholding for discrimination between background and foreground patterns
    • 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)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electromagnetism (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Signal Processing (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
FR9102706A 1991-03-05 1991-03-05 Procede et dispositif de traitement d'un signal electrique analogique issu d'un capteur d'images a balayage electronique. Expired - Fee Related FR2673739B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9102706A FR2673739B1 (fr) 1991-03-05 1991-03-05 Procede et dispositif de traitement d'un signal electrique analogique issu d'un capteur d'images a balayage electronique.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9102706A FR2673739B1 (fr) 1991-03-05 1991-03-05 Procede et dispositif de traitement d'un signal electrique analogique issu d'un capteur d'images a balayage electronique.

Publications (2)

Publication Number Publication Date
FR2673739A1 FR2673739A1 (fr) 1992-09-11
FR2673739B1 true FR2673739B1 (fr) 1994-04-08

Family

ID=9410425

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9102706A Expired - Fee Related FR2673739B1 (fr) 1991-03-05 1991-03-05 Procede et dispositif de traitement d'un signal electrique analogique issu d'un capteur d'images a balayage electronique.

Country Status (1)

Country Link
FR (1) FR2673739B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3240750B2 (ja) * 1993-06-03 2001-12-25 ソニー株式会社 二値化回路及び固体撮像装置
ATE261599T1 (de) * 1996-12-30 2004-03-15 Datalogic Spa Verfahren und vorrichtung zum messen und regulieren einer zeitkonstanten einer elektronischen schaltung, die teil eines optischen kodelesers ist

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5927543B2 (ja) * 1978-12-22 1984-07-06 富士通株式会社 画像信号処理回路
JPS5856185A (ja) * 1981-09-30 1983-04-02 Fujitsu Ltd 信号処理装置
SU1061161A1 (ru) * 1982-07-01 1983-12-15 Gorshkov Aleksandr A Устройство дл двухуровневого квантовани сигналов считывани
JPS61199180A (ja) * 1985-03-01 1986-09-03 Nissan Motor Co Ltd 二値化回路
SU1283815A1 (ru) * 1985-07-23 1987-01-15 Устиновский механический институт Устройство дл определени окончани переходного процесса в диагностических системах

Also Published As

Publication number Publication date
FR2673739A1 (fr) 1992-09-11

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Legal Events

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ST Notification of lapse