Three-dimensional coordinate scanner and method of operation
First Claim
1. A noncontact optical three-dimensional measuring device comprising:
- an assembly that includes a first projector, a first camera, a second projector and a second camera, the first projector having a first light source operable to emit onto a surface of an object a first light having at least one pattern, the second projector having a second light source operable to emit onto the surface of the object a second light;
one or more processors for executing nontransitory computer readable instructions stored on a computer readable media, the one or more processors being operably coupled to the first projector, the first light source, the second projector, the second light source, and the computer readable media, the nontransitory computer readable instructions comprising;
acquiring with the first camera a first image of a first portion of the first light, the first portion of the first light being reflected by the surface;
determining three-dimensional coordinates of a first point on the surface based at least in part on the first image;
determining the presence of a multipath interference based at least in part on the first image;
causing the assembly to move from a first position to a second position in response to determining the presence of multipath interference;
acquiring with the second camera a second image of a second portion of the second light in response to moving the assembly from the first position to the second position; and
determining three-dimensional coordinates of a second point on the surface based at least in part on the second image.
1 Assignment
0 Petitions
Accused Products
Abstract
A noncontact optical three-dimensional measuring device that includes a first projector, a first camera, a second projector, and a second camera; a processor electrically coupled to the first projector, the first camera, the second projector, and the second camera; and computer readable media which, when executed by the processor, causes the first digital signal to be collected at a first time and the second digital signal to be collected at a second time different than the first time and determines three-dimensional coordinates of a first point on the surface based at least in part on the first digital signal and the first distance and determines three-dimensional coordinates of a second point on the surface based at least in part on the second digital signal and the second distance.
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Citations
20 Claims
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1. A noncontact optical three-dimensional measuring device comprising:
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an assembly that includes a first projector, a first camera, a second projector and a second camera, the first projector having a first light source operable to emit onto a surface of an object a first light having at least one pattern, the second projector having a second light source operable to emit onto the surface of the object a second light; one or more processors for executing nontransitory computer readable instructions stored on a computer readable media, the one or more processors being operably coupled to the first projector, the first light source, the second projector, the second light source, and the computer readable media, the nontransitory computer readable instructions comprising; acquiring with the first camera a first image of a first portion of the first light, the first portion of the first light being reflected by the surface; determining three-dimensional coordinates of a first point on the surface based at least in part on the first image; determining the presence of a multipath interference based at least in part on the first image; causing the assembly to move from a first position to a second position in response to determining the presence of multipath interference; acquiring with the second camera a second image of a second portion of the second light in response to moving the assembly from the first position to the second position; and determining three-dimensional coordinates of a second point on the surface based at least in part on the second image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of determining three-dimensional coordinates on a surface of an object, the method comprising:
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providing an assembly that includes a first projector, a first camera, a second projector and a second camera, the first projector having a first light source operable to emit onto a surface of an object a first light having at least one pattern, the second projector having a second light source, the second projector operable to emit onto the surface of the object a second light; acquiring with the first camera a first image of a first area of the surface; determining with one or more processors three-dimensional coordinates of a first point on the surface based at least in part on the first image; determining with the one or more processors the presence of a multipath interference based at least in part on the first image; moving the assembly from a first position to a second position in response to determining the presence of multipath interference; acquiring with the second camera a second image of a second area of the surface in response to moving the assembly from the first position to the second position; and determining with the one or more processors three-dimensional coordinates of a second point on the surface based at least in part on the second image. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification