JPH0997304A - 光学式情報読取装置 - Google Patents

光学式情報読取装置

Info

Publication number
JPH0997304A
JPH0997304A JP7255256A JP25525695A JPH0997304A JP H0997304 A JPH0997304 A JP H0997304A JP 7255256 A JP7255256 A JP 7255256A JP 25525695 A JP25525695 A JP 25525695A JP H0997304 A JPH0997304 A JP H0997304A
Authority
JP
Japan
Prior art keywords
reading
signal
partial
grayscale
read
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.)
Pending
Application number
JP7255256A
Other languages
English (en)
Japanese (ja)
Inventor
Atsushi Nakazawa
敦 中澤
Shigenori Hayashi
栄典 林
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP7255256A priority Critical patent/JPH0997304A/ja
Priority to TW085109504A priority patent/TW312779B/zh
Priority to SG1996010775A priority patent/SG43421A1/en
Priority to KR1019960043601A priority patent/KR100236690B1/ko
Publication of JPH0997304A publication Critical patent/JPH0997304A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Character Input (AREA)
  • Image Input (AREA)
JP7255256A 1995-10-02 1995-10-02 光学式情報読取装置 Pending JPH0997304A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP7255256A JPH0997304A (ja) 1995-10-02 1995-10-02 光学式情報読取装置
TW085109504A TW312779B (enExample) 1995-10-02 1996-08-06
SG1996010775A SG43421A1 (en) 1995-10-02 1996-10-01 Optical reader
KR1019960043601A KR100236690B1 (ko) 1995-10-02 1996-10-02 광학식정보 판독장치

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7255256A JPH0997304A (ja) 1995-10-02 1995-10-02 光学式情報読取装置

Publications (1)

Publication Number Publication Date
JPH0997304A true JPH0997304A (ja) 1997-04-08

Family

ID=17276223

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7255256A Pending JPH0997304A (ja) 1995-10-02 1995-10-02 光学式情報読取装置

Country Status (4)

Country Link
JP (1) JPH0997304A (enExample)
KR (1) KR100236690B1 (enExample)
SG (1) SG43421A1 (enExample)
TW (1) TW312779B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100626329B1 (ko) * 2003-09-08 2006-09-20 가부시끼가이샤 덴소 웨이브 광학 정보 판독 장치 및 관련 정보 판독 방법

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100626329B1 (ko) * 2003-09-08 2006-09-20 가부시끼가이샤 덴소 웨이브 광학 정보 판독 장치 및 관련 정보 판독 방법

Also Published As

Publication number Publication date
SG43421A1 (en) 1997-10-17
KR970023225A (ko) 1997-05-30
TW312779B (enExample) 1997-08-11
KR100236690B1 (ko) 2000-02-01

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