JPS55159279A - Noise rejector - Google Patents
Noise rejectorInfo
- Publication number
- JPS55159279A JPS55159279A JP6575679A JP6575679A JPS55159279A JP S55159279 A JPS55159279 A JP S55159279A JP 6575679 A JP6575679 A JP 6575679A JP 6575679 A JP6575679 A JP 6575679A JP S55159279 A JPS55159279 A JP S55159279A
- Authority
- JP
- Japan
- Prior art keywords
- memory unit
- pattern
- threshold value
- written
- binary
- 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
Landscapes
- Character Input (AREA)
Abstract
PURPOSE: To detect even thin character part, by detecting the dark characters with increased threshold value for binary at first, and binarizing only near the dark character part obtained with lower threshold value.
CONSTITUTION: The multi-value pattern of read-in characters is stored in the memory unit M1 and fed to the comparator 26 with sequential readout, binarized into 0 or 1 at the specified threshold value and written in the memory unit M2. Next, the binary pattern from the memory unit M2 is sequentially read out, and when 1 corresponding to the black video element is read out, the address and each address surrounding it are designated and written in the memory unit M3 by taking each content as 1 to obtain the vicinity pattern to the binary pattern. The readout output of the memory unit M3 is fed to the AND circuit 27 as the area decision gate signal and the signal in the vicinity pattern when the threshold value in decreased is written in the memory unit M2.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6575679A JPS55159279A (en) | 1979-05-28 | 1979-05-28 | Noise rejector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6575679A JPS55159279A (en) | 1979-05-28 | 1979-05-28 | Noise rejector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55159279A true JPS55159279A (en) | 1980-12-11 |
| JPS6333194B2 JPS6333194B2 (en) | 1988-07-04 |
Family
ID=13296185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6575679A Granted JPS55159279A (en) | 1979-05-28 | 1979-05-28 | Noise rejector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55159279A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6325788A (en) * | 1986-07-18 | 1988-02-03 | Toshiba Corp | Train number identifying device |
| JPH0194489A (en) * | 1987-10-06 | 1989-04-13 | Mitsubishi Heavy Ind Ltd | Vehicle number plate detector |
| JP2006024149A (en) * | 2004-07-09 | 2006-01-26 | Foundation For The Promotion Of Industrial Science | Method and apparatus for recognizing moving object on image |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4932019A (en) * | 1972-07-26 | 1974-03-23 | ||
| JPS5451733A (en) * | 1977-10-03 | 1979-04-23 | Toshiba Corp | Character reading system |
-
1979
- 1979-05-28 JP JP6575679A patent/JPS55159279A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4932019A (en) * | 1972-07-26 | 1974-03-23 | ||
| JPS5451733A (en) * | 1977-10-03 | 1979-04-23 | Toshiba Corp | Character reading system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6325788A (en) * | 1986-07-18 | 1988-02-03 | Toshiba Corp | Train number identifying device |
| JPH0194489A (en) * | 1987-10-06 | 1989-04-13 | Mitsubishi Heavy Ind Ltd | Vehicle number plate detector |
| JP2006024149A (en) * | 2004-07-09 | 2006-01-26 | Foundation For The Promotion Of Industrial Science | Method and apparatus for recognizing moving object on image |
| JP4628712B2 (en) * | 2004-07-09 | 2011-02-09 | 財団法人生産技術研究奨励会 | Method and apparatus for recognizing moving object on image |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6333194B2 (en) | 1988-07-04 |
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