JPS5588174A - Signal processing circuit - Google Patents
Signal processing circuitInfo
- Publication number
- JPS5588174A JPS5588174A JP16002878A JP16002878A JPS5588174A JP S5588174 A JPS5588174 A JP S5588174A JP 16002878 A JP16002878 A JP 16002878A JP 16002878 A JP16002878 A JP 16002878A JP S5588174 A JPS5588174 A JP S5588174A
- Authority
- JP
- Japan
- Prior art keywords
- output
- error signal
- halation
- binary
- circuit
- 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
Links
- 238000007689 inspection Methods 0.000 abstract 3
- 238000001514 detection method Methods 0.000 abstract 2
- 230000002950 deficient Effects 0.000 abstract 1
Landscapes
- Image Analysis (AREA)
- Image Processing (AREA)
Abstract
PURPOSE:To improve the defective detection precision of an inspected body by removing the output of a detection circuit from an inspection output by providing the circuit which detects only an error signal due to halation occurring outside of a region to be inspected. CONSTITUTION:Video signal 521 of inspected body 51 from television camera 52 is supplied to binary-coding circuit 55 making use of a level comparison set to threshold level 112, and binary-coding circuit 56 making use of that set to threshold level 113 to obtain binary coding outputs (B) and (C) respectively. Those outputs (B) and (C) are an error signal due to halation and inspection output including the error signal. Output (B) and output (C) having passed through inverter 57 are applied to NOR gate 58 to obtain insepction signal (E) which has an error signal component removed. Consequently, accurate inspection including no error due to halation can be realized.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53160028A JPS5947357B2 (en) | 1978-12-27 | 1978-12-27 | signal processing circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53160028A JPS5947357B2 (en) | 1978-12-27 | 1978-12-27 | signal processing circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5588174A true JPS5588174A (en) | 1980-07-03 |
JPS5947357B2 JPS5947357B2 (en) | 1984-11-19 |
Family
ID=15706389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53160028A Expired JPS5947357B2 (en) | 1978-12-27 | 1978-12-27 | signal processing circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5947357B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01310491A (en) * | 1988-06-08 | 1989-12-14 | Nec Corp | Picture discriminator |
-
1978
- 1978-12-27 JP JP53160028A patent/JPS5947357B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01310491A (en) * | 1988-06-08 | 1989-12-14 | Nec Corp | Picture discriminator |
Also Published As
Publication number | Publication date |
---|---|
JPS5947357B2 (en) | 1984-11-19 |
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