JPS56157579A - Picture collating device - Google Patents

Picture collating device

Info

Publication number
JPS56157579A
JPS56157579A JP6032180A JP6032180A JPS56157579A JP S56157579 A JPS56157579 A JP S56157579A JP 6032180 A JP6032180 A JP 6032180A JP 6032180 A JP6032180 A JP 6032180A JP S56157579 A JPS56157579 A JP S56157579A
Authority
JP
Japan
Prior art keywords
seal
registered
collating
print
coincidence
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
JP6032180A
Other languages
Japanese (ja)
Other versions
JPS5951025B2 (en
Inventor
Akira Maeda
Junichi Shibayama
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP6032180A priority Critical patent/JPS5951025B2/en
Publication of JPS56157579A publication Critical patent/JPS56157579A/en
Publication of JPS5951025B2 publication Critical patent/JPS5951025B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
    • G01B21/24—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes for testing alignment of axes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Collating Specific Patterns (AREA)

Abstract

PURPOSE:To obtain a correct angle with a small quantity of calculation, by measuring the rotation angle made by the registered picture and a collating picture through using several concentric circle patterns of radiuses registered together with a picture. CONSTITUTION:A print of the registered seal or the collating seal is registered in the pattern memory 2 by the input device 1, and the center of the print of a seal is measured by the center measuring device 3. Next, the print of the registered seal is converted to a concentric circle pattern by the concentric developing device 7 and is stored in the concentric circle pattern memory 8. Next, this pattern is shifted step by the concentric circle pattern shift device 9, and degrees of coincidence between shift patterns of prints between the registered seal and the collating seal are measured by the concentric circle coincidence degree measuring device 10. Next, the rotation angle of the print of the collating seal for the print of the registered seal is obtained by the rotation angle calculating device 11. Next, the degree of coincidence between both prints is measured by the seal coincidence degree measuring device 5 and is compared with the reference value by the discriminating device 6; and if this degree of coincidence is larger than the reference value, it is discriminated that the registered seal coincides with the collating seal.
JP6032180A 1980-05-06 1980-05-06 Image matching device Expired JPS5951025B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6032180A JPS5951025B2 (en) 1980-05-06 1980-05-06 Image matching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6032180A JPS5951025B2 (en) 1980-05-06 1980-05-06 Image matching device

Publications (2)

Publication Number Publication Date
JPS56157579A true JPS56157579A (en) 1981-12-04
JPS5951025B2 JPS5951025B2 (en) 1984-12-12

Family

ID=13138784

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6032180A Expired JPS5951025B2 (en) 1980-05-06 1980-05-06 Image matching device

Country Status (1)

Country Link
JP (1) JPS5951025B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10206134A (en) * 1997-01-17 1998-08-07 Matsushita Electric Works Ltd Position detecting method by image processing
JP2012118729A (en) * 2010-11-30 2012-06-21 Fujitsu Frontech Ltd Seal impression collation device, seal impression collation method, and program

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10206134A (en) * 1997-01-17 1998-08-07 Matsushita Electric Works Ltd Position detecting method by image processing
JP2012118729A (en) * 2010-11-30 2012-06-21 Fujitsu Frontech Ltd Seal impression collation device, seal impression collation method, and program

Also Published As

Publication number Publication date
JPS5951025B2 (en) 1984-12-12

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