JPS6148760B2 - - Google Patents
Info
- Publication number
- JPS6148760B2 JPS6148760B2 JP11386179A JP11386179A JPS6148760B2 JP S6148760 B2 JPS6148760 B2 JP S6148760B2 JP 11386179 A JP11386179 A JP 11386179A JP 11386179 A JP11386179 A JP 11386179A JP S6148760 B2 JPS6148760 B2 JP S6148760B2
- Authority
- JP
- Japan
- Prior art keywords
- detection
- vehicle
- length
- road
- light
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 68
- 230000003287 optical effect Effects 0.000 claims description 23
- 238000005259 measurement Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000003384 imaging method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Landscapes
- Traffic Control Systems (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11386179A JPS5636799A (en) | 1979-09-04 | 1979-09-04 | Measurement device for traffic flow |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11386179A JPS5636799A (en) | 1979-09-04 | 1979-09-04 | Measurement device for traffic flow |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5636799A JPS5636799A (en) | 1981-04-10 |
JPS6148760B2 true JPS6148760B2 (US07943777-20110517-C00090.png) | 1986-10-25 |
Family
ID=14622918
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11386179A Granted JPS5636799A (en) | 1979-09-04 | 1979-09-04 | Measurement device for traffic flow |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5636799A (US07943777-20110517-C00090.png) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61194564U (US07943777-20110517-C00090.png) * | 1985-05-27 | 1986-12-04 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW349211B (en) * | 1996-01-12 | 1999-01-01 | Sumitomo Electric Industries | Method snd apparatus traffic jam measurement, and method and apparatus for image processing |
US6188778B1 (en) | 1997-01-09 | 2001-02-13 | Sumitomo Electric Industries, Ltd. | Traffic congestion measuring method and apparatus and image processing method and apparatus |
-
1979
- 1979-09-04 JP JP11386179A patent/JPS5636799A/ja active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61194564U (US07943777-20110517-C00090.png) * | 1985-05-27 | 1986-12-04 |
Also Published As
Publication number | Publication date |
---|---|
JPS5636799A (en) | 1981-04-10 |
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