JPS6476167A - Linear light extracting circuit - Google Patents

Linear light extracting circuit

Info

Publication number
JPS6476167A
JPS6476167A JP62233281A JP23328187A JPS6476167A JP S6476167 A JPS6476167 A JP S6476167A JP 62233281 A JP62233281 A JP 62233281A JP 23328187 A JP23328187 A JP 23328187A JP S6476167 A JPS6476167 A JP S6476167A
Authority
JP
Japan
Prior art keywords
linear light
time
peak
comparators
evaluation function
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
JP62233281A
Other languages
Japanese (ja)
Other versions
JP2709301B2 (en
Inventor
Takashi Yoshimi
Masaki Oshima
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP62233281A priority Critical patent/JP2709301B2/en
Publication of JPS6476167A publication Critical patent/JPS6476167A/en
Application granted granted Critical
Publication of JP2709301B2 publication Critical patent/JP2709301B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Image Processing (AREA)
  • Image Analysis (AREA)

Abstract

PURPOSE:To obtain plural linear light positions on a TV screen in a real time by removing an unnecessary linear light by the use of a prescribed evaluation function and executing a weighted operation. CONSTITUTION:When a brightness (V) is below a threshold again, the value of the evaluation function value S(=SIGMAV) is inputted to N comparators 22. In the respective comparators 22, the comparison of the area of a peak Si (1<=i<=N) obtained previously in the same line is executed. Then, the number of '0' (S<Si) of an output (1 bit) from the respective comparators 22 is counted by an ordinal number decision circuit 28. The output of this circuit 28 is the ordinal number K corresponding to the area of the peak. Further, the ordinal numbers Ki and K obtained in the past are compared in a comparator 24. Then, at the time of K<=i<N-1, Ki is increased by 1 and at the time of K<N and Ki= N-1, data such as Ki, Si of register groups 26 is respectively replaced by data such as K, S.
JP62233281A 1987-09-17 1987-09-17 Striation light extraction circuit Expired - Lifetime JP2709301B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62233281A JP2709301B2 (en) 1987-09-17 1987-09-17 Striation light extraction circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62233281A JP2709301B2 (en) 1987-09-17 1987-09-17 Striation light extraction circuit

Publications (2)

Publication Number Publication Date
JPS6476167A true JPS6476167A (en) 1989-03-22
JP2709301B2 JP2709301B2 (en) 1998-02-04

Family

ID=16952633

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62233281A Expired - Lifetime JP2709301B2 (en) 1987-09-17 1987-09-17 Striation light extraction circuit

Country Status (1)

Country Link
JP (1) JP2709301B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010071722A (en) * 2008-09-17 2010-04-02 Nippon Steel Corp Method and device for inspecting unevenness flaws

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63132107A (en) * 1986-11-25 1988-06-04 Hitachi Ltd Light cutting line extracting circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63132107A (en) * 1986-11-25 1988-06-04 Hitachi Ltd Light cutting line extracting circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010071722A (en) * 2008-09-17 2010-04-02 Nippon Steel Corp Method and device for inspecting unevenness flaws

Also Published As

Publication number Publication date
JP2709301B2 (en) 1998-02-04

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term