CA2209610A1 - Optical range and speed detection system - Google Patents

Optical range and speed detection system

Info

Publication number
CA2209610A1
CA2209610A1 CA002209610A CA2209610A CA2209610A1 CA 2209610 A1 CA2209610 A1 CA 2209610A1 CA 002209610 A CA002209610 A CA 002209610A CA 2209610 A CA2209610 A CA 2209610A CA 2209610 A1 CA2209610 A1 CA 2209610A1
Authority
CA
Canada
Prior art keywords
target
camera lenses
range
different times
detection system
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
CA002209610A
Other languages
French (fr)
Other versions
CA2209610C (en
Inventor
Lawrence V. Nash
Larry C. Hardin
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2209610A1 publication Critical patent/CA2209610A1/en
Application granted granted Critical
Publication of CA2209610C publication Critical patent/CA2209610C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C3/00—Measuring distances in line of sight; Optical rangefinders
    • G01C3/02—Details
    • G01C3/06—Use of electric means to obtain final indication
    • G01C3/08—Use of electric radiation detectors
    • G01C3/085—Use of electric radiation detectors with electronic parallax measurement
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Power Engineering (AREA)
  • Measurement Of Optical Distance (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Abstract

A passive optical speed and distance measuring system includes a pair of camera lenses (14, 18) positioned along a common baseline (60) a predetermined distance apart and controlled by an operator to capture images of a target at different times. The camera lenses (14, 18) are focused on light sensitive pixel arrays which capture target images at offset positions in the line scans of the pixel arrays. A video signal processor with a computer (30) determines the location of the offset positions and calculates the range to the target by solving the trigonometry of the triangle formed by the two camera lenses (14, 18) and the target. Once the range to the target is known at two different times the speed of the target is calculated.
CA002209610A 1995-01-18 1995-01-18 Optical range and speed detection system Expired - Fee Related CA2209610C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1995/000819 WO1996022537A1 (en) 1995-01-18 1995-01-18 Optical range and speed detection system

Publications (2)

Publication Number Publication Date
CA2209610A1 true CA2209610A1 (en) 1996-07-25
CA2209610C CA2209610C (en) 2001-03-27

Family

ID=22248540

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002209610A Expired - Fee Related CA2209610C (en) 1995-01-18 1995-01-18 Optical range and speed detection system

Country Status (5)

Country Link
EP (1) EP0877944A4 (en)
JP (1) JPH10512953A (en)
AU (1) AU690230B2 (en)
CA (1) CA2209610C (en)
WO (1) WO1996022537A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1014144A3 (en) * 2001-04-27 2003-05-06 Visee Christian METHOD AND DEVICE FOR EVALUATING A PARAMETER OF A MOVING OBJECT.
IT1399162B1 (en) * 2010-04-01 2013-04-11 Consorzio Naz Interuniversitario Per Le Telecomunicazioni Cnit MONITORING SYSTEM
CN102393972B (en) * 2011-07-21 2014-04-23 深圳市爱森斯信息技术有限公司 Gate passage detection system and method
RU2524441C2 (en) * 2012-05-02 2014-07-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Самарский государственный технический университет" Gadget for measurement of object image velocity vector with random distribution of brightness
US9131295B2 (en) 2012-08-07 2015-09-08 Microsoft Technology Licensing, Llc Multi-microphone audio source separation based on combined statistical angle distributions
US9269146B2 (en) 2012-08-23 2016-02-23 Microsoft Technology Licensing, Llc Target object angle determination using multiple cameras
JP2015064324A (en) * 2013-09-26 2015-04-09 株式会社リコー Moving member detection apparatus
CN107395972B (en) * 2017-07-31 2020-03-06 华勤通讯技术有限公司 Shooting method and terminal for fast moving object
CN113419075B (en) * 2021-05-31 2022-08-16 广州忘平信息科技有限公司 Ship speed measuring method, system, device and medium based on binocular vision

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3788201A (en) * 1970-12-14 1974-01-29 F Abell Method for establishing vehicle identification, speed and conditions of visibility
US4173010A (en) * 1975-05-01 1979-10-30 Hoffmann Anton R Traffic sign and improved system for recording vehicle speed
US4135817A (en) * 1978-03-09 1979-01-23 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Apparatus for measuring an aircraft's speed and height
DE2838647A1 (en) * 1978-09-05 1980-04-10 Siemens Ag METHOD FOR AUTOMATIC OR SEMI-AUTOMATIC DISTANCE MEASUREMENT AND FOCUSING OF THE IMAGE OF AN OBJECT ON AN IMAGE LEVEL
US4257703A (en) * 1979-03-15 1981-03-24 The Bendix Corporation Collision avoidance using optical pattern growth rate
DE3009534A1 (en) * 1980-03-12 1981-09-17 Siemens AG, 1000 Berlin und 8000 München ARRANGEMENT FOR OPTOELECTRONIC DISTANCE MEASUREMENT
US4433325A (en) * 1980-09-30 1984-02-21 Omron Tateisi Electronics, Co. Optical vehicle detection system
US4671650A (en) * 1982-09-20 1987-06-09 Crane Co. (Hydro-Aire Division) Apparatus and method for determining aircraft position and velocity
US4495589A (en) * 1982-09-20 1985-01-22 Crane Co. Aircraft ground velocity determination system
US4601053A (en) * 1983-11-21 1986-07-15 Grumman Aerospace Corporation Automatic TV ranging system
DE3516664A1 (en) * 1985-05-09 1986-11-13 Honeywell Regelsysteme GmbH, 6050 Offenbach OPTICAL ARRANGEMENT FOR PASSIVE DISTANCE DETERMINATION
DE3642196A1 (en) * 1986-12-10 1988-06-23 Mel Mikro Elektronik Gmbh Optoelectronic collision protection device for vehicles
US4847772A (en) * 1987-02-17 1989-07-11 Regents Of The University Of Minnesota Vehicle detection through image processing for traffic surveillance and control
IL86202A (en) * 1988-04-27 1992-01-15 Driver Safety Systems Ltd Traffic safety monitoring apparatus
US4969735A (en) * 1989-03-07 1990-11-13 Sperry Marine Inc. Passive range finding apparatus utilizing television sensors
JP2583641B2 (en) * 1990-05-18 1997-02-19 日産自動車株式会社 Travel control method
JPH0812072B2 (en) * 1990-06-13 1996-02-07 三菱電機株式会社 Distance measuring device
US5161107A (en) * 1990-10-25 1992-11-03 Mestech Creation Corporation Traffic surveillance system
JP3167752B2 (en) * 1991-10-22 2001-05-21 富士重工業株式会社 Vehicle distance detection device

Also Published As

Publication number Publication date
CA2209610C (en) 2001-03-27
AU690230B2 (en) 1998-04-23
WO1996022537A1 (en) 1996-07-25
EP0877944A4 (en) 1999-04-21
AU1832995A (en) 1996-08-07
JPH10512953A (en) 1998-12-08
EP0877944A1 (en) 1998-11-18

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