JPS5696378A - Processing system for connection line extraction of pattern - Google Patents

Processing system for connection line extraction of pattern

Info

Publication number
JPS5696378A
JPS5696378A JP17220779A JP17220779A JPS5696378A JP S5696378 A JPS5696378 A JP S5696378A JP 17220779 A JP17220779 A JP 17220779A JP 17220779 A JP17220779 A JP 17220779A JP S5696378 A JPS5696378 A JP S5696378A
Authority
JP
Japan
Prior art keywords
region
pattern
noise
symbol pattern
processing system
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
JP17220779A
Other languages
Japanese (ja)
Other versions
JPS6312308B2 (en
Inventor
Masumi Yoshida
Akira Inoue
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP17220779A priority Critical patent/JPS5696378A/en
Publication of JPS5696378A publication Critical patent/JPS5696378A/en
Publication of JPS6312308B2 publication Critical patent/JPS6312308B2/ja
Granted legal-status Critical Current

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  • Image Analysis (AREA)

Abstract

PURPOSE: To extract connection lines correctly, by segmenting the square region including a symbol pattern and by counting the Euler number to eliminate noise.
CONSTITUTION: In respect to the square region which is cut with grid intersection 2 as the center so that respective grid intersections are divided from one another, square region 6 including symbol pattern 3 is extracted. Further, the part around symbol pattern 3 in this region 6 is segmented into regions AWH. The Euler number is counted for video data in, for example, region C to check whether the pattern in region C is a lump of pattern or not, and noise 9 is eliminated. This operation is performed for every region to exclude erroneous information due to noise, and thus, connection lines are extracted correctly.
COPYRIGHT: (C)1981,JPO&Japio
JP17220779A 1979-12-28 1979-12-28 Processing system for connection line extraction of pattern Granted JPS5696378A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17220779A JPS5696378A (en) 1979-12-28 1979-12-28 Processing system for connection line extraction of pattern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17220779A JPS5696378A (en) 1979-12-28 1979-12-28 Processing system for connection line extraction of pattern

Publications (2)

Publication Number Publication Date
JPS5696378A true JPS5696378A (en) 1981-08-04
JPS6312308B2 JPS6312308B2 (en) 1988-03-18

Family

ID=15937566

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17220779A Granted JPS5696378A (en) 1979-12-28 1979-12-28 Processing system for connection line extraction of pattern

Country Status (1)

Country Link
JP (1) JPS5696378A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59123081A (en) * 1982-12-29 1984-07-16 Fujitsu Ltd End point extracting system
JPS59139475A (en) * 1983-01-19 1984-08-10 Fujitsu Ltd Noise removing system in automatic input system of printed circuit board pattern diagram
JPS59176881A (en) * 1983-03-26 1984-10-06 Fujitsu Ltd Processing system of extracting of end point
JPH01106280A (en) * 1987-10-20 1989-04-24 Iizeru:Kk Video processing system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59123081A (en) * 1982-12-29 1984-07-16 Fujitsu Ltd End point extracting system
JPS59139475A (en) * 1983-01-19 1984-08-10 Fujitsu Ltd Noise removing system in automatic input system of printed circuit board pattern diagram
JPS6367706B2 (en) * 1983-01-19 1988-12-27 Fujitsu Ltd
JPS59176881A (en) * 1983-03-26 1984-10-06 Fujitsu Ltd Processing system of extracting of end point
JPH01106280A (en) * 1987-10-20 1989-04-24 Iizeru:Kk Video processing system

Also Published As

Publication number Publication date
JPS6312308B2 (en) 1988-03-18

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