JPS6488210A - Method for detecting distance between cars - Google Patents
Method for detecting distance between carsInfo
- Publication number
- JPS6488210A JPS6488210A JP62246639A JP24663987A JPS6488210A JP S6488210 A JPS6488210 A JP S6488210A JP 62246639 A JP62246639 A JP 62246639A JP 24663987 A JP24663987 A JP 24663987A JP S6488210 A JPS6488210 A JP S6488210A
- Authority
- JP
- Japan
- Prior art keywords
- image
- distance
- cars
- preceding vehicle
- vehicle
- 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
Abstract
PURPOSE:To discriminate a vehicle and to calculate the absolute distance between cars, by confirming the number plate of the preceding vehicle on an image. CONSTITUTION:The CCD camera 2 arranged on a vehicle 1 at a position not obstructing driving and capable of sufficiently securing the front visual field takes the image of the scene on a road inclusive of the preceding vehicle. The obtained image signal is converted to a digital signal by an A/D converter 3 and inputted to a processing apparatus 4 not only to be stored in a memory 6 but also to be displayed on a monitor television 7 as an image. A computer 5 uses the image of the memory 6 to calculate the distance between cars and a distance-between-car meter 8 visibly displays the calculation result. Further, the computer 5 emits an alarm through a means sounding a buzzer at an abnormal approach time when the distance between cars becomes smaller than a predetermined value to pay attention to a driver. At this time, the driver inputs the number plate of the preceding vehicle on an image in an initial state and confirms the number plate of the image taken in at every predetermined time on and after and performs the tracking of the preceding vehicle to detect the distance between cars going in the same direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62246639A JP2536549B2 (en) | 1987-09-30 | 1987-09-30 | Inter-vehicle distance detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62246639A JP2536549B2 (en) | 1987-09-30 | 1987-09-30 | Inter-vehicle distance detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6488210A true JPS6488210A (en) | 1989-04-03 |
| JP2536549B2 JP2536549B2 (en) | 1996-09-18 |
Family
ID=17151400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62246639A Expired - Lifetime JP2536549B2 (en) | 1987-09-30 | 1987-09-30 | Inter-vehicle distance detection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2536549B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02299950A (en) * | 1989-05-15 | 1990-12-12 | Mazda Motor Corp | Moving body recognizing device for moving car |
| JP2003075717A (en) * | 2001-09-06 | 2003-03-12 | Nikon Corp | Distance detecting device |
| JP2003289468A (en) * | 2002-03-28 | 2003-10-10 | Sanyo Electric Co Ltd | Imaging apparatus |
| JP2009169776A (en) * | 2008-01-18 | 2009-07-30 | Hitachi Ltd | Detector |
| JP2009271161A (en) * | 2008-05-01 | 2009-11-19 | Seiko Epson Corp | Image projection device and image projection method |
| WO2014076979A1 (en) * | 2012-11-16 | 2014-05-22 | 三菱重工業株式会社 | Image recognition device, image recognition method, program, and recording medium |
| CN114445335A (en) * | 2021-12-22 | 2022-05-06 | 武汉易思达科技有限公司 | Vehicle running state monitoring method and system based on binocular machine vision |
-
1987
- 1987-09-30 JP JP62246639A patent/JP2536549B2/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02299950A (en) * | 1989-05-15 | 1990-12-12 | Mazda Motor Corp | Moving body recognizing device for moving car |
| JP2003075717A (en) * | 2001-09-06 | 2003-03-12 | Nikon Corp | Distance detecting device |
| JP2003289468A (en) * | 2002-03-28 | 2003-10-10 | Sanyo Electric Co Ltd | Imaging apparatus |
| JP2009169776A (en) * | 2008-01-18 | 2009-07-30 | Hitachi Ltd | Detector |
| JP2009271161A (en) * | 2008-05-01 | 2009-11-19 | Seiko Epson Corp | Image projection device and image projection method |
| WO2014076979A1 (en) * | 2012-11-16 | 2014-05-22 | 三菱重工業株式会社 | Image recognition device, image recognition method, program, and recording medium |
| JP2014099128A (en) * | 2012-11-16 | 2014-05-29 | Mitsubishi Heavy Ind Ltd | Image recognition device, image recognition method, program, and recording medium |
| US9747511B2 (en) | 2012-11-16 | 2017-08-29 | Mitsubishi Heavy Industries, Ltd. | Image recognition device, image recognition method, program, and recording medium |
| CN114445335A (en) * | 2021-12-22 | 2022-05-06 | 武汉易思达科技有限公司 | Vehicle running state monitoring method and system based on binocular machine vision |
| CN114445335B (en) * | 2021-12-22 | 2024-04-12 | 武汉易思达科技有限公司 | Vehicle running state monitoring method based on binocular machine vision |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2536549B2 (en) | 1996-09-18 |
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