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ES485626A1 - Method of tracing an outline - Google Patents

Method of tracing an outline

Info

Publication number
ES485626A1
ES485626A1 ES485626A ES485626A ES485626A1 ES 485626 A1 ES485626 A1 ES 485626A1 ES 485626 A ES485626 A ES 485626A ES 485626 A ES485626 A ES 485626A ES 485626 A1 ES485626 A1 ES 485626A1
Authority
ES
Spain
Prior art keywords
tracing
boundary
checkpoint
outline
checkpoints
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
Application number
ES485626A
Other languages
Spanish (es)
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.)
Dainippon Screen Manufacturing Co Ltd
Original Assignee
Dainippon Screen Manufacturing Co 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 Dainippon Screen Manufacturing Co Ltd filed Critical Dainippon Screen Manufacturing Co Ltd
Publication of ES485626A1 publication Critical patent/ES485626A1/en
Expired 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
    • G06K11/00—Methods or arrangements for graph-reading or for converting the pattern of mechanical parameters, e.g. force or presence, into electrical signal
    • G06K11/02—Automatic curve followers, i.e. arrangements in which an exploring member or beam is forced to follow the curve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
    • B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
    • B23Q35/08—Means for transforming movement of the feeler or the like into feed movement of tool or work
    • B23Q35/12—Means for transforming movement of the feeler or the like into feed movement of tool or work involving electrical means
    • B23Q35/127—Means for transforming movement of the feeler or the like into feed movement of tool or work involving electrical means using non-mechanical sensing
    • B23Q35/128—Sensing by using optical means

Landscapes

  • Engineering & Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Hardware Design (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Preparing Plates And Mask In Photomechanical Process (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Image Analysis (AREA)

Abstract

A method for tracing most of an outline in a picture, the outline being a boundary with different light values on its two sides, with a tracing head. First, a plurality of checkpoints P on the boundary R are chosen, in order around the boundary, the last being the same as the first. Small regions S are selected around the checkpoints. Then the tracing head 16 is positioned at the first checkpoint, and is moved, without tracing, to the intersection of the boundary and the edge of the small region around the first checkpoint. Then the tracing head is moved along the boundary towards the second checkpoint, while tracing, until it reaches the edge of the small region around the second checkpoint. The tracing head is then moved to the third and successive checkpoints in the same manner until the boundary has been traced.
ES485626A 1978-10-25 1979-10-25 Method of tracing an outline Expired ES485626A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53131195A JPS6053311B2 (en) 1978-10-25 1978-10-25 Image contour tracking recording method

Publications (1)

Publication Number Publication Date
ES485626A1 true ES485626A1 (en) 1980-05-16

Family

ID=15052239

Family Applications (1)

Application Number Title Priority Date Filing Date
ES485626A Expired ES485626A1 (en) 1978-10-25 1979-10-25 Method of tracing an outline

Country Status (7)

Country Link
JP (1) JPS6053311B2 (en)
DE (1) DE2942082A1 (en)
DK (1) DK436079A (en)
ES (1) ES485626A1 (en)
FR (1) FR2440034B1 (en)
GB (1) GB2035611B (en)
IT (1) IT1162408B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS572037A (en) * 1980-06-05 1982-01-07 Dainippon Screen Mfg Co Ltd Logging method of object to be tracked
DE3201851C2 (en) * 1982-01-22 1986-05-07 VEGLA Vereinigte Glaswerke GmbH, 5100 Aachen Method and apparatus for programming a numerically controlled compound slide work machine
JPS59146853A (en) * 1983-02-12 1984-08-22 Chiyuushiyou Kigyo Shinko Jigyodan Line drawing document automatic transferring apparatus in screen printing
JPS60143341A (en) * 1983-12-30 1985-07-29 Dainippon Screen Mfg Co Ltd Manufacture of partial mask plate
JPS63140373A (en) * 1986-12-02 1988-06-11 Oki Electric Ind Co Ltd Sheet metal developing method in cad/cam device
JPS63141609U (en) * 1987-03-06 1988-09-19
IT1211390B (en) * 1987-10-06 1989-10-18 Dea Spa INTERACTIVE GRAPHIC SYSTEM FOR THE MATHEMATIZATION OF PHYSICAL MODELS

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1285704A (en) * 1968-09-30 1972-08-16 British Oxygen Co Ltd Line following
GB1316938A (en) * 1969-11-14 1973-05-16 British Oxygen Co Ltd Line following
JPS5280901A (en) * 1975-12-26 1977-07-07 Yoshio Inoue Apparatus for drawing required contour line of image
JPS6040017B2 (en) * 1977-08-19 1985-09-09 大日本スクリ−ン製造株式会社 Image circulation tracking recording device

Also Published As

Publication number Publication date
GB2035611B (en) 1983-01-19
DK436079A (en) 1980-04-26
DE2942082A1 (en) 1980-05-08
JPS5557846A (en) 1980-04-30
IT1162408B (en) 1987-04-01
GB2035611A (en) 1980-06-18
FR2440034A1 (en) 1980-05-23
JPS6053311B2 (en) 1985-11-25
IT7950660A0 (en) 1979-10-24
FR2440034B1 (en) 1985-11-15

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