WO2004038328A3 - Positional measurement of a feature within an image and monitoring an aircraft structure - Google Patents

Positional measurement of a feature within an image and monitoring an aircraft structure Download PDF

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Publication number
WO2004038328A3
WO2004038328A3 PCT/GB2003/004606 GB0304606W WO2004038328A3 WO 2004038328 A3 WO2004038328 A3 WO 2004038328A3 GB 0304606 W GB0304606 W GB 0304606W WO 2004038328 A3 WO2004038328 A3 WO 2004038328A3
Authority
WO
WIPO (PCT)
Prior art keywords
feature
image
pixel
fraction
estimate
Prior art date
Application number
PCT/GB2003/004606
Other languages
French (fr)
Other versions
WO2004038328A2 (en
Inventor
Kevin David Potter
Christopher Setchell
Original Assignee
Univ Bristol
Kevin David Potter
Christopher Setchell
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 Univ Bristol, Kevin David Potter, Christopher Setchell filed Critical Univ Bristol
Priority to AU2003278336A priority Critical patent/AU2003278336A1/en
Priority to US10/532,438 priority patent/US8718403B2/en
Priority to EP03769646.5A priority patent/EP1563252B1/en
Publication of WO2004038328A2 publication Critical patent/WO2004038328A2/en
Publication of WO2004038328A3 publication Critical patent/WO2004038328A3/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/20—Analysis of motion
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/70—Determining position or orientation of objects or cameras
    • G06T7/73—Determining position or orientation of objects or cameras using feature-based methods
    • G06T7/74—Determining position or orientation of objects or cameras using feature-based methods involving reference images or patches
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/20—Image preprocessing
    • G06V10/24—Aligning, centring, orientation detection or correction of the image
    • G06V10/245—Aligning, centring, orientation detection or correction of the image by locating a pattern; Special marks for positioning

Abstract

The position of a feature within an image is determined by determining an initial estimate of the feature position to within a fraction of a pixel, translating the feature by an amount equal to that fraction of a pixel, determining a further estimate of the translated feature position to within a fraction of a pixel and summing the pixel fraction of the previous estimate with the further estimate of the position to arrive at a refined estimate of the feature position. Moreover, an aircraft structure is monitored by attaching an image capturing device and a target to the structure, by processing the captured images and by detecting the movement of the target.
PCT/GB2003/004606 2002-10-25 2003-10-23 Positional measurement of a feature within an image and monitoring an aircraft structure WO2004038328A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2003278336A AU2003278336A1 (en) 2002-10-25 2003-10-23 Positional measurement of a feature within an image and monitoring an aircraft structure
US10/532,438 US8718403B2 (en) 2002-10-25 2003-10-23 Positional measurement of a feature within an image
EP03769646.5A EP1563252B1 (en) 2002-10-25 2003-10-23 Positional measurement of a feature within an image and monitoring an aircraft structure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0224923A GB2394543A (en) 2002-10-25 2002-10-25 Positional measurement of a feature within an image
GB0224923.3 2002-10-25

Publications (2)

Publication Number Publication Date
WO2004038328A2 WO2004038328A2 (en) 2004-05-06
WO2004038328A3 true WO2004038328A3 (en) 2004-08-26

Family

ID=9946622

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2003/004606 WO2004038328A2 (en) 2002-10-25 2003-10-23 Positional measurement of a feature within an image and monitoring an aircraft structure

Country Status (5)

Country Link
US (1) US8718403B2 (en)
EP (1) EP1563252B1 (en)
AU (1) AU2003278336A1 (en)
GB (1) GB2394543A (en)
WO (1) WO2004038328A2 (en)

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US8907889B2 (en) 2005-01-12 2014-12-09 Thinkoptics, Inc. Handheld vision based absolute pointing system
US8913003B2 (en) 2006-07-17 2014-12-16 Thinkoptics, Inc. Free-space multi-dimensional absolute pointer using a projection marker system
US9176598B2 (en) 2007-05-08 2015-11-03 Thinkoptics, Inc. Free-space multi-dimensional absolute pointer with improved performance

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US7593501B2 (en) * 2005-01-06 2009-09-22 Areva Np Inc. Segment make-up system and method for manufacturing nuclear fuel rods
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US7477359B2 (en) * 2005-02-11 2009-01-13 Deltasphere, Inc. Method and apparatus for making and displaying measurements based upon multiple 3D rangefinder data sets
US7974461B2 (en) * 2005-02-11 2011-07-05 Deltasphere, Inc. Method and apparatus for displaying a calculated geometric entity within one or more 3D rangefinder data sets
US7477360B2 (en) * 2005-02-11 2009-01-13 Deltasphere, Inc. Method and apparatus for displaying a 2D image data set combined with a 3D rangefinder data set
US7403268B2 (en) * 2005-02-11 2008-07-22 Deltasphere, Inc. Method and apparatus for determining the geometric correspondence between multiple 3D rangefinder data sets
US7777761B2 (en) * 2005-02-11 2010-08-17 Deltasphere, Inc. Method and apparatus for specifying and displaying measurements within a 3D rangefinder data set
US20060238508A1 (en) * 2005-04-22 2006-10-26 Tong Xie Optical location measuring system
WO2007015271A1 (en) * 2005-08-02 2007-02-08 Fidia S.P.A. Precision displacement measuring system and method for industrial machines
US7763875B2 (en) 2005-09-07 2010-07-27 Romanov Nikolai L System and method for sensing position utilizing an uncalibrated surface
WO2007035720A2 (en) * 2005-09-20 2007-03-29 Deltasphere, Inc. Methods, systems, and computer program products for acquiring three-dimensional range information
DE102007037726B4 (en) * 2007-08-09 2010-07-08 Lavision Gmbh Method for the non-contact measurement of deformations of a surface of a measured object
US9446840B2 (en) * 2008-07-01 2016-09-20 The Boeing Company Systems and methods for alleviating aircraft loads with plasma actuators
DE102009007938A1 (en) 2009-02-06 2010-08-19 Baumer Innotec Ag Measuring device for measuring deformations of elastically deformable objects
WO2013177163A1 (en) * 2012-05-24 2013-11-28 Siemens Healthcare Diagnostics Inc. Non-contact optical encoding scheme for intelligent automation puck
US10462361B2 (en) 2017-09-26 2019-10-29 Rosemount Aerospace Inc. Seeker with dynamic resolution imaging
EP3754292A1 (en) * 2019-06-19 2020-12-23 Intelligent Contruction Safety Systems Spolka Z Ograniczona Odpowiedzialnoscia A system for measuring deformations and a method for measuring deformations
US11803943B2 (en) * 2019-06-25 2023-10-31 Illinois Tool Works Inc. Brightness and contrast correction for video extensometer systems and methods
US20230233106A1 (en) * 2020-06-30 2023-07-27 Kneedly Ab Solution for Determination of Supraphysiological Body Joint Movements
CN112945117B (en) * 2021-01-26 2022-07-08 广西建宏工程科技有限公司 Movable bridge deflection detector for bridge engineering detection
WO2023239910A1 (en) * 2022-06-10 2023-12-14 Supernal, Llc Camera calibration using feature of vehicle

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WO2000077720A1 (en) * 1999-06-16 2000-12-21 Coreco Imaging, Inc. Systems and methods for locating a pattern in an image

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US4805123A (en) * 1986-07-14 1989-02-14 Kla Instruments Corporation Automatic photomask and reticle inspection method and apparatus including improved defect detector and alignment sub-systems
US4805123B1 (en) * 1986-07-14 1998-10-13 Kla Instr Corp Automatic photomask and reticle inspection method and apparatus including improved defect detector and alignment sub-systems
US5640200A (en) * 1994-08-31 1997-06-17 Cognex Corporation Golden template comparison using efficient image registration
US5850466A (en) * 1995-02-22 1998-12-15 Cognex Corporation Golden template comparison for rotated and/or scaled images
WO2000077720A1 (en) * 1999-06-16 2000-12-21 Coreco Imaging, Inc. Systems and methods for locating a pattern in an image

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8907889B2 (en) 2005-01-12 2014-12-09 Thinkoptics, Inc. Handheld vision based absolute pointing system
US8913003B2 (en) 2006-07-17 2014-12-16 Thinkoptics, Inc. Free-space multi-dimensional absolute pointer using a projection marker system
US9176598B2 (en) 2007-05-08 2015-11-03 Thinkoptics, Inc. Free-space multi-dimensional absolute pointer with improved performance

Also Published As

Publication number Publication date
AU2003278336A8 (en) 2004-05-13
EP1563252B1 (en) 2014-10-01
WO2004038328A2 (en) 2004-05-06
AU2003278336A1 (en) 2004-05-13
GB2394543A (en) 2004-04-28
GB0224923D0 (en) 2002-12-04
US20060115133A1 (en) 2006-06-01
EP1563252A2 (en) 2005-08-17
US8718403B2 (en) 2014-05-06

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