Enhanced stereo imaging-based metrology
First Claim
1. A computer-implemented method of evaluating an object, the method comprising:
- for each of at least three different instants;
concurrently acquiring first image data of the object using a first camera and second image data of the object using a second camera;
a computer system processing the first and second image data to identify a shared point of the object visible in both the first and second image data; and
the computer system calculating a physical three-dimensional location of the identified shared point using the first and second image data;
the computer system calculating a physical three-dimensional location of an exclusive point of the object visible only in one of the first or second image data for each of the three different instants using the one of the first or second image data and the physical three-dimensional location of the shared point at each of the three different instants; and
the computer system evaluating the object using the physical three-dimensional locations of the shared point and the exclusive point.
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Accused Products
Abstract
A solution for evaluating an object using physical three-dimensional locations of the various points on the object derived from image data concurrently acquired by two or more cameras (e.g., stereo image data) is provided. Image data concurrently acquired by at least two cameras at each of multiple instants is processed to identify one or more points of an object visible in the image data. A physical three-dimensional location of each such point can be calculated at each instant using the corresponding image data. Additionally, a physical three-dimensional location of one or more points of the object visible only in the image data acquired by one camera can be calculated for each of the three different instants using the image data in which the corresponding point is visible and the physical three-dimensional location of one or more of the points visible in the image data acquired by at least two cameras.
32 Citations
20 Claims
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1. A computer-implemented method of evaluating an object, the method comprising:
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for each of at least three different instants; concurrently acquiring first image data of the object using a first camera and second image data of the object using a second camera; a computer system processing the first and second image data to identify a shared point of the object visible in both the first and second image data; and the computer system calculating a physical three-dimensional location of the identified shared point using the first and second image data; the computer system calculating a physical three-dimensional location of an exclusive point of the object visible only in one of the first or second image data for each of the three different instants using the one of the first or second image data and the physical three-dimensional location of the shared point at each of the three different instants; and the computer system evaluating the object using the physical three-dimensional locations of the shared point and the exclusive point. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system comprising:
a computer system for evaluating an object by performing a method comprising; obtaining image data including the object acquired at a plurality of instants, wherein the image data includes first image data and second image data concurrently acquired by a first camera and a second camera; for image data corresponding to at least three of the plurality of instants; processing the first and second image data to identify a shared point of the object visible in both the first and second image data; and calculating a physical three-dimensional location of the identified shared point using the first and second image data; calculating a physical three-dimensional location of an exclusive point of the object visible only in one of the first or second image data for each of the three different instants using the one of the first or second image data and the physical three-dimensional location of the shared point at each of the three different instants; and evaluating the object using the physical three-dimensional locations of the shared point and the exclusive point. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A vehicle evaluation system comprising:
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a first camera and a second camera located over a path of travel for the vehicle with fields of view configured to capture image data including the front and top of the vehicle in both fields of view and each side of the vehicle in only one of the fields of view as the vehicle approaches the first and second cameras; and a computer system for evaluating the vehicle as it approaches a restricted-space region by performing a method comprising; obtaining image data including first image data and second image data of the vehicle concurrently acquired at a plurality of instants as the vehicle is approaching the first and second cameras; for image data corresponding to at least three of the plurality of instants; processing the first and second image data to identify a shared point of the vehicle visible in both the first and second image data; and calculating a physical three-dimensional location of the identified shared point using the first and second image data; calculating a physical three-dimensional location of an exclusive point of the vehicle visible only in one of the first or second image data for each of the three different instants using the one of the first or second image data and the physical three-dimensional location of the shared point at each of the three different instants; and evaluating the vehicle for passage through the restricted-space region using the physical three-dimensional locations of the shared point and the exclusive point. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification