JPS4975010A - - Google Patents
Info
- Publication number
- JPS4975010A JPS4975010A JP48116424A JP11642473A JPS4975010A JP S4975010 A JPS4975010 A JP S4975010A JP 48116424 A JP48116424 A JP 48116424A JP 11642473 A JP11642473 A JP 11642473A JP S4975010 A JPS4975010 A JP S4975010A
- Authority
- JP
- Japan
- 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
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
- G06K7/10851—Circuits for pulse shaping, amplifying, eliminating noise signals, checking the function of the sensing device
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/28—Quantising the image, e.g. histogram thresholding for discrimination between background and foreground patterns
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
- H04N1/403—Discrimination between the two tones in the picture signal of a two-tone original
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Signal Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
- Television Signal Processing For Recording (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00299060A US3842200A (en) | 1972-10-19 | 1972-10-19 | Contrast processing of video signals with self-adjusting reference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4975010A true JPS4975010A (US07498051-20090303-C00003.png) | 1974-07-19 |
Family
ID=23153149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48116424A Pending JPS4975010A (US07498051-20090303-C00003.png) | 1972-10-19 | 1973-10-18 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3842200A (US07498051-20090303-C00003.png) |
| JP (1) | JPS4975010A (US07498051-20090303-C00003.png) |
| DE (1) | DE2351711A1 (US07498051-20090303-C00003.png) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58146179A (ja) * | 1982-02-24 | 1983-08-31 | Nec Corp | フアクシミリ信号二値化回路 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2713640A1 (de) * | 1977-03-28 | 1978-10-12 | Kraftwerk Union Ag | Verfahren zur ueberwachung einer anlage und anordnung zur durchfuehrung des verfahrens |
| JPS6013596B2 (ja) * | 1977-08-19 | 1985-04-08 | 日本ビクター株式会社 | テレビジヨン映像信号処理装置 |
| US4442544A (en) * | 1981-07-09 | 1984-04-10 | Xerox Corporation | Adaptive thresholder |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE639986A (US07498051-20090303-C00003.png) * | 1962-11-15 | 1900-01-01 | ||
| US3500073A (en) * | 1966-09-15 | 1970-03-10 | Phonocopy Inc | Analog to binary signal processor |
-
1972
- 1972-10-19 US US00299060A patent/US3842200A/en not_active Expired - Lifetime
-
1973
- 1973-10-15 DE DE19732351711 patent/DE2351711A1/de active Pending
- 1973-10-18 JP JP48116424A patent/JPS4975010A/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58146179A (ja) * | 1982-02-24 | 1983-08-31 | Nec Corp | フアクシミリ信号二値化回路 |
| JPH0153542B2 (US07498051-20090303-C00003.png) * | 1982-02-24 | 1989-11-14 | Nippon Electric Co |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2351711A1 (de) | 1974-05-02 |
| US3842200A (en) | 1974-10-15 |
