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1
US10240916B1
Publication/Patent Number: US10240916B1
Publication date: 2019-03-26
Application number: 15/398,401
Filing date: 2017-01-04
Abstract: A method and apparatus for calibrating laser displacement sensors within a vehicle inspection system. A calibration target structure is positioned within an operative field of view for the laser displacement sensor, providing one or more optical targets onto which illuminating laser beams from the laser displacement sensor are projected. Displacement measurements are acquired with the optical targets disposed at a plurality of positions within the field of view. The resulting displacement measurements, together with known position information for the optical targets, are utilized to calibrate an associated imaging sensor such that the displacement measurements associated with each illuminating laser beam and known positional information agree to within a desired tolerance throughout the operative field of view for the laser displacement sensor. A method and apparatus for calibrating laser displacement sensors within a vehicle inspection system. A calibration target structure is positioned within an operative field of view for the laser displacement sensor, providing one or more optical targets onto which illuminating ...more ...less
2
EP3364149A1
Publication/Patent Number: EP3364149A1
Publication date: 2018-08-22
Application number: 18165658.8
Filing date: 2011-04-07
Abstract: An optical target assembly (100) to secure an optical target relative to a vehicle wheel assembly (10) consisting of a wheel rim having a circumferential lip and a tire mounted thereon for rotation about an axis, comprises: a base assembly (102) including a contact surface (110) configured for non-determined abutting placement at a plurality of contact points against an outer surface of the vehicle wheel assembly, between the circumferential lip of the wheel rim and an axial center point of the wheel rim; characterized by a target support assembly (108) removably secured to said base assembly axially outboard from said contact surface (110); and at least one attachment mechanism configured (104A, 104B, 106, 300) to maintain each of said contact points of said contact surface in contact with, and immobile relative to, said outer surface of the wheel assembly during a vehicle service procedure; and wherein said target support assembly (108) includes a first target surface (200A) and a separate second target surface (200B), with a plurality of optical target elements (202) disposed on each of said first and second target surfaces, the second target surface (200B) separately disposed axially inward from the first target surface (200A), and is offset from a plane of the first target surface (200A). An optical target assembly (100) to secure an optical target relative to a vehicle wheel assembly (10) consisting of a wheel rim having a circumferential lip and a tire mounted thereon for rotation about an axis, comprises: a base assembly (102) including a contact surface (110) ...more ...less
4
US9544545B2
Publication/Patent Number: US9544545B2
Publication date: 2017-01-10
Application number: 14/464,534
Filing date: 2014-08-20
Abstract: A machine vision vehicle wheel alignment system for acquiring measurements associated with a vehicle. The system includes at least one imaging sensor having a field of view and at least one optical target secured to a wheel assembly on a vehicle within the field of view of the imaging sensor. The optical target includes a plurality of visible target elements disposed on at least two surfaces in a determinable geometric and spatial configuration which are calibrated prior to use. A processing unit in the system is configured to receive at least two sets of image data from the imaging sensor, with each set of image data acquired at a different rotational position of the wheel assembly around an axis of rotation and representative of at least one visible target element on each of the two surfaces, from which the processing unit is configured to identify said axis of rotation of the wheel assembly. A machine vision vehicle wheel alignment system for acquiring measurements associated with a vehicle. The system includes at least one imaging sensor having a field of view and at least one optical target secured to a wheel assembly on a vehicle within the field of view of the ...more ...less
5
US9644952B2
Publication/Patent Number: US9644952B2
Publication date: 2017-05-09
Application number: 13/830,867
Filing date: 2013-03-14
Abstract: A process for calibrating and evaluating a machine-vision vehicle wheel alignment system having front and rear imaging components associated with each of the left and right sides of a vehicle support structure. Each pair of imaging components defines a front and rear field of view, with a common overlapping region associated with each respective side of the vehicle support structure. Optical targets disposed within each of the overlapping field of view regions are observed by the imaging components to establish performance ratings for the system as a whole, for groups of components within the system, and for individual components within the system. A process for calibrating and evaluating a machine-vision vehicle wheel alignment system having front and rear imaging components associated with each of the left and right sides of a vehicle support structure. Each pair of imaging components defines a front and rear field of ...more ...less
6
CN105841639A
Publication/Patent Number: CN105841639A
Publication date: 2016-08-10
Application number: 201610188334
Filing date: 2011-04-07
Abstract: A method and apparatus for determining the alignment of a vehicle wheel using an optical target assembly secured to the vehicle wheel in a non-determined position
7
CN103080694B
Publication/Patent Number: CN103080694B
Publication date: 2016-04-06
Application number: 201180042684
Filing date: 2011-04-07
Abstract: A method and apparatus for determining the alignment of a vehicle wheel using an optical target assembly secured to the vehicle wheel in a non-determined position
8
US2014111645A1
Publication/Patent Number: US2014111645A1
Publication date: 2014-04-24
Application number: 13/830,867
Filing date: 2013-03-14
Abstract: A process for calibrating and evaluating a machine-vision vehicle wheel alignment system having front and rear imaging components associated with each of the left and right sides of a vehicle support structure. Each pair of imaging components defines a front and rear field of view, with a common overlapping region associated with each respective side of the vehicle support structure. Optical targets disposed within each of the overlapping field of view regions are observed by the imaging components to establish performance ratings for the system as a whole, for groups of components within the system, and for individual components within the system. A process for calibrating and evaluating a machine-vision vehicle wheel alignment system having front and rear imaging components associated with each of the left and right sides of a vehicle support structure. Each pair of imaging components defines a front and rear field of ...more ...less
9
US8875407B2
Publication/Patent Number: US8875407B2
Publication date: 2014-11-04
Application number: 13/781,977
Filing date: 2013-03-01
Abstract: A machine vision vehicle wheel alignment system for acquiring measurements associated with a vehicle. The system includes at least one imaging sensor having a field of view and at least one optical target secured to a wheel assembly on a vehicle within the field of view of the imaging sensor. The optical target includes a plurality of visible target elements disposed on at least two surfaces in a determinable geometric and spatial configuration which are calibrated prior to use. A processing unit in the system is configured to receive at least two sets of image data from the imaging sensor, with each set of image data acquired at a different rotational position of the wheel assembly around an axis of rotation and representative of at least one visible target element on each of the two surfaces, from which the processing unit is configured to identify said axis of rotation of the wheel assembly. A machine vision vehicle wheel alignment system for acquiring measurements associated with a vehicle. The system includes at least one imaging sensor having a field of view and at least one optical target secured to a wheel assembly on a vehicle within the field of view of the ...more ...less
10
US2014354818A1
Publication/Patent Number: US2014354818A1
Publication date: 2014-12-04
Application number: 14/464,534
Filing date: 2014-08-20
Abstract: A machine vision vehicle wheel alignment system for acquiring measurements associated with a vehicle. The system includes at least one imaging sensor having a field of view and at least one optical target secured to a wheel assembly on a vehicle within the field of view of the imaging sensor. The optical target includes a plurality of visible target elements disposed on at least two surfaces in a determinable geometric and spatial configuration which are calibrated prior to use. A processing unit in the system is configured to receive at least two sets of image data from the imaging sensor, with each set of image data acquired at a different rotational position of the wheel assembly around an axis of rotation and representative of at least one visible target element on each of the two surfaces, from which the processing unit is configured to identify said axis of rotation of the wheel assembly. A machine vision vehicle wheel alignment system for acquiring measurements associated with a vehicle. The system includes at least one imaging sensor having a field of view and at least one optical target secured to a wheel assembly on a vehicle within the field of view of the ...more ...less
11
WO2014062877A1
Publication/Patent Number: WO2014062877A1
Publication date: 2014-04-24
Application number: 2013065361
Filing date: 2013-10-17
Abstract: A process for calibrating and evaluating a machine-vision vehicle wheel alignment system having front and rear imaging components associated with each of the left and right sides of a vehicle support structure. Each pair of imaging components defines a front and rear field of view A process for calibrating and evaluating a machine-vision vehicle wheel alignment system having front and rear imaging components associated with each of the left and right sides of a vehicle support structure. Each pair of imaging components defines a front and rear field of ...more ...less
12
US8341848B2
Publication/Patent Number: US8341848B2
Publication date: 2013-01-01
Application number: 12/875,796
Filing date: 2010-09-03
Abstract: A method and apparatus for determining the alignment of a vehicle wheel using an optical target assembly secured to the vehicle wheel in a non-determined position, the optical target assembly having a dimensionally stable shape and a plurality of optical target elements disposed on a plurality of target surfaces. Images of the optical target elements are acquired by an imaging system, together with target identifying indicia, and utilized together with previously stored target characterization data to determine a spatial orientation of the optical target assembly and an alignment of the vehicle wheel onto which it is secured. A method and apparatus for determining the alignment of a vehicle wheel using an optical target assembly secured to the vehicle wheel in a non-determined position, the optical target assembly having a dimensionally stable shape and a plurality of optical target elements disposed ...more ...less
13
US8561307B2
Publication/Patent Number: US8561307B2
Publication date: 2013-10-22
Application number: 13/693,750
Filing date: 2012-12-04
Abstract: A method and apparatus for determining the alignment of a vehicle wheel using an optical target assembly secured to the vehicle wheel in a non-determined position, the optical target assembly having a dimensionally stable shape and a plurality of optical target elements disposed on a plurality of target surfaces. Images of the optical target elements are acquired by an imaging system, together with target identifying indicia, and utilized together with previously stored target characterization data to determine a spatial orientation of the optical target assembly and an alignment of the vehicle wheel onto which it is secured. A method and apparatus for determining the alignment of a vehicle wheel using an optical target assembly secured to the vehicle wheel in a non-determined position, the optical target assembly having a dimensionally stable shape and a plurality of optical target elements disposed ...more ...less
14
US2013250098A1
Publication/Patent Number: US2013250098A1
Publication date: 2013-09-26
Application number: 13/693,750
Filing date: 2012-12-04
Abstract: A method and apparatus for determining the alignment of a vehicle wheel using an optical target assembly secured to the vehicle wheel in a non-determined position, the optical target assembly having a dimensionally stable shape and a plurality of optical target elements disposed on a plurality of target surfaces. Images of the optical target elements are acquired by an imaging system, together with target identifying indicia, and utilized together with previously stored target characterization data to determine a spatial orientation of the optical target assembly and an alignment of the vehicle wheel onto which it is secured. A method and apparatus for determining the alignment of a vehicle wheel using an optical target assembly secured to the vehicle wheel in a non-determined position, the optical target assembly having a dimensionally stable shape and a plurality of optical target elements disposed ...more ...less
15
CN103080694A
Publication/Patent Number: CN103080694A
Publication date: 2013-05-01
Application number: 201180042684
Filing date: 2011-04-07
Abstract: A method and apparatus for determining the alignment of a vehicle wheel using an optical target assembly secured to the vehicle wheel in a non-determined position
16
US8490290B2
Publication/Patent Number: US8490290B2
Publication date: 2013-07-23
Application number: 13/483,976
Filing date: 2012-05-30
Abstract: A machine vision vehicle wheel alignment system for acquiring measurements associated with a vehicle. The system includes at least one imaging sensor having a field of view and at least one optical target secured to a wheel assembly on a vehicle within the field of view of the imaging sensor. The optical target includes a plurality of visible target elements disposed on at least two surfaces in a determinable geometric and spatial configuration which are calibrated prior to use. A processing unit in the system is configured to receive at least two sets of image data from the imaging sensor, with each set of image data acquired at a different rotational position of the wheel assembly around an axis of rotation and representative of at least one visible target element on each of the two surfaces, from which the processing unit is configured to identify said axis of rotation of the wheel assembly. A machine vision vehicle wheel alignment system for acquiring measurements associated with a vehicle. The system includes at least one imaging sensor having a field of view and at least one optical target secured to a wheel assembly on a vehicle within the field of view of the ...more ...less
17
US2013176428A1
Publication/Patent Number: US2013176428A1
Publication date: 2013-07-11
Application number: 13/781,977
Filing date: 2013-03-01
Abstract: A machine vision vehicle wheel alignment system for acquiring measurements associated with a vehicle. The system includes at least one imaging sensor having a field of view and at least one optical target secured to a wheel assembly on a vehicle within the field of view of the imaging sensor. The optical target includes a plurality of visible target elements disposed on at least two surfaces in a determinable geometric and spatial configuration which are calibrated prior to use. A processing unit in the system is configured to receive at least two sets of image data from the imaging sensor, with each set of image data acquired at a different rotational position of the wheel assembly around an axis of rotation and representative of at least one visible target element on each of the two surfaces, from which the processing unit is configured to identify said axis of rotation of the wheel assembly. A machine vision vehicle wheel alignment system for acquiring measurements associated with a vehicle. The system includes at least one imaging sensor having a field of view and at least one optical target secured to a wheel assembly on a vehicle within the field of view of the ...more ...less
18
EP2612107A1
Publication/Patent Number: EP2612107A1
Publication date: 2013-07-10
Application number: 11717366.6
Filing date: 2011-04-07
19
US8553236B2
Publication/Patent Number: US8553236B2
Publication date: 2013-10-08
Application number: 12/873,455
Filing date: 2010-09-01
Abstract: An optical target for temporary application in non-determined placement on a surface of an object such as a vehicle wheel assembly within the field of view of an imaging sensor of a machine vision vehicle service system. The optical target consists of a flexible body which is relatively thin and generally flat, capable of conforming to the contours of a surface onto which it is secured in releasable manner by a means of adhesion. A set of visible optical elements are disposed on a front face of the target body for observation and imaging by the imaging sensors. An optical target for temporary application in non-determined placement on a surface of an object such as a vehicle wheel assembly within the field of view of an imaging sensor of a machine vision vehicle service system. The optical target consists of a flexible body which is ...more ...less