JPS6488210A - Method for detecting distance between cars - Google Patents

Method for detecting distance between cars

Info

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
Application number
JP62246639A
Other languages
Japanese (ja)
Other versions
JP2536549B2 (en
Inventor
Rei Iketani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzuki Motor Corp
Original Assignee
Suzuki Motor Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzuki Motor Corp filed Critical Suzuki Motor Corp
Priority to JP62246639A priority Critical patent/JP2536549B2/en
Publication of JPS6488210A publication Critical patent/JPS6488210A/en
Application granted granted Critical
Publication of JP2536549B2 publication Critical patent/JP2536549B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Measurement Of Optical Distance (AREA)
  • Image Processing (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Image Analysis (AREA)

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.
JP62246639A 1987-09-30 1987-09-30 Inter-vehicle distance detection method Expired - Lifetime JP2536549B2 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (10)

* Cited by examiner, † Cited by third party
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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