WO2002008685A3 - Apparatus and method for determining the range of remote objects - Google Patents

Apparatus and method for determining the range of remote objects Download PDF

Info

Publication number
WO2002008685A3
WO2002008685A3 PCT/US2001/023535 US0123535W WO0208685A3 WO 2002008685 A3 WO2002008685 A3 WO 2002008685A3 US 0123535 W US0123535 W US 0123535W WO 0208685 A3 WO0208685 A3 WO 0208685A3
Authority
WO
WIPO (PCT)
Prior art keywords
ranges
objects
image sensors
permits
camera
Prior art date
Application number
PCT/US2001/023535
Other languages
French (fr)
Other versions
WO2002008685A2 (en
Inventor
Robert Dougherty
Original Assignee
Optinav Inc
Robert Dougherty
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 Optinav Inc, Robert Dougherty filed Critical Optinav Inc
Priority to US10/333,423 priority Critical patent/US20040125228A1/en
Priority to EP01961741A priority patent/EP1316222A2/en
Publication of WO2002008685A2 publication Critical patent/WO2002008685A2/en
Publication of WO2002008685A3 publication Critical patent/WO2002008685A3/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/62—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having six components only
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/026—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring distance between sensor and object
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20—Image signal generators
    • H04N13/204—Image signal generators using stereoscopic image cameras
    • H04N13/207—Image signal generators using stereoscopic image cameras using a single 2D image sensor
    • H04N13/236—Image signal generators using stereoscopic image cameras using a single 2D image sensor using varifocal lenses or mirrors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20—Image signal generators
    • H04N13/271—Image signal generators wherein the generated image signals comprise depth maps or disparity maps

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Optical Distance (AREA)

Abstract

Range estimates are made using a passive technique. Light is focussed and then split into multiple beams. These beams are projected onto multiple image sensors (10a-g), each of which is located at a different optical path from the focussing system. By measuring the degree to which point objects are blurred on at least two of the image sensors, information is obtained that permits the calculation of the ranges of objects within the field of view of the camera. A unique beamsplitting system permits multiple, substantially identical images to be projected onto multiple image sensors (10a-g) using minimal overall physical distances, thus minimizing the size and weight of the camera. This invention permits ranges to be calculated continuously and in real time, and is suitable for measuring the ranges of objects in both static and nonstatic situations.
PCT/US2001/023535 2000-07-26 2001-07-25 Apparatus and method for determining the range of remote objects WO2002008685A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/333,423 US20040125228A1 (en) 2001-07-25 2001-07-25 Apparatus and method for determining the range of remote objects
EP01961741A EP1316222A2 (en) 2000-07-26 2001-07-25 Apparatus and method for determining the range of remote objects

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US22073400P 2000-07-26 2000-07-26
US60/220,734 2000-07-26

Publications (2)

Publication Number Publication Date
WO2002008685A2 WO2002008685A2 (en) 2002-01-31
WO2002008685A3 true WO2002008685A3 (en) 2002-10-03

Family

ID=22824727

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/023535 WO2002008685A2 (en) 2000-07-26 2001-07-25 Apparatus and method for determining the range of remote objects

Country Status (2)

Country Link
EP (1) EP1316222A2 (en)
WO (1) WO2002008685A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003344743A (en) 2002-03-18 2003-12-03 Fuji Photo Optical Co Ltd Photographic lens
US7084385B2 (en) * 2003-08-19 2006-08-01 Autoliv Asp, Inc. Range discriminating optical sensor having a wide angle lens with a fixed focal length
US7683962B2 (en) * 2007-03-09 2010-03-23 Eastman Kodak Company Camera using multiple lenses and image sensors in a rangefinder configuration to provide a range map
US7626705B2 (en) 2007-03-30 2009-12-01 Mitutoyo Corporation Chromatic sensor lens configuration
JP2012521673A (en) 2009-03-19 2012-09-13 フレクストロニクス エイピー エルエルシー Dual sensor camera
US8553106B2 (en) 2009-05-04 2013-10-08 Digitaloptics Corporation Dual lens digital zoom
US8134691B2 (en) 2010-03-18 2012-03-13 Mitutoyo Corporation Lens configuration for a thermally compensated chromatic confocal point sensor
US8212997B1 (en) 2011-02-23 2012-07-03 Mitutoyo Corporation Chromatic confocal point sensor optical pen with extended measuring range
US9760986B2 (en) * 2015-11-11 2017-09-12 General Electric Company Method and system for automated shaped cooling hole measurement

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5396057A (en) * 1993-09-08 1995-03-07 Northrop Grumman Corporation Method for optimum focusing of electro-optical sensors for testing purposes with a haar matrix transform
US5719702A (en) * 1993-08-03 1998-02-17 The United States Of America As Represented By The United States Department Of Energy Polarization-balanced beamsplitter
US5726709A (en) * 1994-05-31 1998-03-10 Victor Company Of Japan, Ltd. Imaging apparatus including offset pixels for generating vertical high frequency component
US5777674A (en) * 1994-04-11 1998-07-07 Canon Kabushiki Kaisha Four color separation optical device
US5777673A (en) * 1994-08-24 1998-07-07 Fuji Photo Optical Co., Ltd. Color separation prism
US5784202A (en) * 1993-07-08 1998-07-21 Asahi Kogaku Kogyo Kabushika Kaisha Apparatus for isometrically splitting beams
US5793900A (en) * 1995-12-29 1998-08-11 Stanford University Generating categorical depth maps using passive defocus sensing
US5900942A (en) * 1997-09-26 1999-05-04 The United States Of America As Represented By Administrator Of National Aeronautics And Space Administration Multi spectral imaging system
US6020922A (en) * 1996-02-21 2000-02-01 Samsung Electronics Co., Ltd. Vertical line multiplication method for high-resolution camera and circuit therefor
US6088295A (en) * 1998-12-29 2000-07-11 The United States Of America As Represented By The Secretary Of The Navy Feature imaging and adaptive focusing for synthetic aperture processor

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5784202A (en) * 1993-07-08 1998-07-21 Asahi Kogaku Kogyo Kabushika Kaisha Apparatus for isometrically splitting beams
US5719702A (en) * 1993-08-03 1998-02-17 The United States Of America As Represented By The United States Department Of Energy Polarization-balanced beamsplitter
US5396057A (en) * 1993-09-08 1995-03-07 Northrop Grumman Corporation Method for optimum focusing of electro-optical sensors for testing purposes with a haar matrix transform
US5777674A (en) * 1994-04-11 1998-07-07 Canon Kabushiki Kaisha Four color separation optical device
US5726709A (en) * 1994-05-31 1998-03-10 Victor Company Of Japan, Ltd. Imaging apparatus including offset pixels for generating vertical high frequency component
US5777673A (en) * 1994-08-24 1998-07-07 Fuji Photo Optical Co., Ltd. Color separation prism
US5793900A (en) * 1995-12-29 1998-08-11 Stanford University Generating categorical depth maps using passive defocus sensing
US6020922A (en) * 1996-02-21 2000-02-01 Samsung Electronics Co., Ltd. Vertical line multiplication method for high-resolution camera and circuit therefor
US5900942A (en) * 1997-09-26 1999-05-04 The United States Of America As Represented By Administrator Of National Aeronautics And Space Administration Multi spectral imaging system
US6088295A (en) * 1998-12-29 2000-07-11 The United States Of America As Represented By The Secretary Of The Navy Feature imaging and adaptive focusing for synthetic aperture processor

Also Published As

Publication number Publication date
EP1316222A2 (en) 2003-06-04
WO2002008685A2 (en) 2002-01-31

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