JPS57196380A - Discriminating device of printed matter - Google Patents

Discriminating device of printed matter

Info

Publication number
JPS57196380A
JPS57196380A JP56080068A JP8006881A JPS57196380A JP S57196380 A JPS57196380 A JP S57196380A JP 56080068 A JP56080068 A JP 56080068A JP 8006881 A JP8006881 A JP 8006881A JP S57196380 A JPS57196380 A JP S57196380A
Authority
JP
Japan
Prior art keywords
printed matter
terminal
start point
printed
signal
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
JP56080068A
Inventor
Akihiro Saito
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP56080068A priority Critical patent/JPS57196380A/en
Publication of JPS57196380A publication Critical patent/JPS57196380A/en
Application status is Granted legal-status Critical

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K9/00Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
    • G06K9/36Image preprocessing, i.e. processing the image information without deciding about the identity of the image
    • G06K9/42Normalisation of the pattern dimensions

Abstract

PURPOSE:To remove influence caused by expansion and contraction of a printed matter, and to discriminate it with high accuracy, by detecting a start point and a terminal of a printed pattern when calculating the analogy of an AC portion of the printed matter, and deriving the first and second analogies starting from the start point and the terminal, respectively. CONSTITUTION:Printed matter 5-7 to be checked is irradiated by an illumination light source 5-1, and a reflected ray from a prescribed area 5-3 is detected by a photodetector 5-5. Also, a start point and a terminal of travelling printed mat ter 5-7 are detected by a photoelectric switch 5-8, and a printed matter end signal TO is outputted. An output of this photodetector 5-5 is sampled in accordance with a sampling signal from a timing control signal generating circuit for inputting the signal TO by an A/D converter 6-3, and both signals are converted to a digital signal, respectively. Subsequently, analogy in an AC portion against plural waveform signals to be a reference stored in advance, starting from each start point and terminal are derived by a microcomputer, etc., and the derived similarities are combined, by which printed matter is discriminated with high accuracy.
JP56080068A 1981-05-28 1981-05-28 Discriminating device of printed matter Granted JPS57196380A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56080068A JPS57196380A (en) 1981-05-28 1981-05-28 Discriminating device of printed matter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56080068A JPS57196380A (en) 1981-05-28 1981-05-28 Discriminating device of printed matter

Publications (1)

Publication Number Publication Date
JPS57196380A true JPS57196380A (en) 1982-12-02

Family

ID=13707904

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56080068A Granted JPS57196380A (en) 1981-05-28 1981-05-28 Discriminating device of printed matter

Country Status (1)

Country Link
JP (1) JPS57196380A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02128148A (en) * 1988-11-07 1990-05-16 Toppan Printing Co Ltd Card printing inspecting device
JPH03193450A (en) * 1989-12-25 1991-08-23 Komu Syst:Kk Image inspection device
US5201395A (en) * 1990-09-27 1993-04-13 Oki Electric Industry Co., Ltd. Bill examination device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02128148A (en) * 1988-11-07 1990-05-16 Toppan Printing Co Ltd Card printing inspecting device
JPH03193450A (en) * 1989-12-25 1991-08-23 Komu Syst:Kk Image inspection device
US5201395A (en) * 1990-09-27 1993-04-13 Oki Electric Industry Co., Ltd. Bill examination device

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