JPS57157369A - Loop tracking processing system - Google Patents

Loop tracking processing system

Info

Publication number
JPS57157369A
JPS57157369A JP4342481A JP4342481A JPS57157369A JP S57157369 A JPS57157369 A JP S57157369A JP 4342481 A JP4342481 A JP 4342481A JP 4342481 A JP4342481 A JP 4342481A JP S57157369 A JPS57157369 A JP S57157369A
Authority
JP
Japan
Prior art keywords
point
boundary line
seen
accordance
address
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
JP4342481A
Other languages
Japanese (ja)
Inventor
Koji Mikawa
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 JP4342481A priority Critical patent/JPS57157369A/en
Publication of JPS57157369A publication Critical patent/JPS57157369A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/20—Contour coding, e.g. using detection of edges

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Generation (AREA)

Abstract

PURPOSE:To execute collecting processing of boundary line information easily and exactly, by searching a boundary line by turning to the right or left direction in accordance with the existence direction of the first point that has been seen from one point before the first point of the boundary line, and setting the first detected point to the next point. CONSTITUTION:When tracking a boundary of a loop pattern containing an indicated point P on a display 8, addresses x0, y0 of the i-th point A1 of the boundary line are calculated 15 by a tracking processing part 9, are stored in an address store buffer 16, and also a picture data watched through an observation window is read out to a register 12 from a picture memory 16 by a set address to registers 7, 11. Subsequently, the boundary line is searched in the right or left turning direction, centering around and point A1 by accessing a direction memory 14 in accordance with the direction of the point A1 seen from the (i-1)-th point P, the (i+1)-th point A2 is extracted, and its address is stored in the buffer 16. Subsequently, the next point A3 is derived in accordance with the existence direction of the point A2 seen from the point A1.
JP4342481A 1981-03-25 1981-03-25 Loop tracking processing system Pending JPS57157369A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4342481A JPS57157369A (en) 1981-03-25 1981-03-25 Loop tracking processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4342481A JPS57157369A (en) 1981-03-25 1981-03-25 Loop tracking processing system

Publications (1)

Publication Number Publication Date
JPS57157369A true JPS57157369A (en) 1982-09-28

Family

ID=12663310

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4342481A Pending JPS57157369A (en) 1981-03-25 1981-03-25 Loop tracking processing system

Country Status (1)

Country Link
JP (1) JPS57157369A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60140475A (en) * 1983-12-08 1985-07-25 ドクトル・ヨハネス・ハイデンハイン・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング Circuit unit for deriving contour with a plurality of synthesized polygons overlapped by pixel memory
JPS60243772A (en) * 1984-05-17 1985-12-03 Yokogawa Hokushin Electric Corp Method for painting out inside of loop on display device
JPS61262974A (en) * 1985-05-17 1986-11-20 Fujitsu Ltd Method for designating graphic area

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60140475A (en) * 1983-12-08 1985-07-25 ドクトル・ヨハネス・ハイデンハイン・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング Circuit unit for deriving contour with a plurality of synthesized polygons overlapped by pixel memory
JPS60243772A (en) * 1984-05-17 1985-12-03 Yokogawa Hokushin Electric Corp Method for painting out inside of loop on display device
JPH0319991B2 (en) * 1984-05-17 1991-03-18 Yokogawa Electric Corp
JPS61262974A (en) * 1985-05-17 1986-11-20 Fujitsu Ltd Method for designating graphic area

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