Brake component monitoring
First Claim
1. A system comprising:
- an imaging component including;
a first imaging device configured to acquire image data for a target area of a vehicle; and
a first illumination device configured to direct electromagnetic radiation on the target area, wherein the first illumination device is at least one of;
horizontally or vertically offset from the first imaging device to create shadows in the image data; and
a computer system for evaluating a component at least partially visible in the target area using the image data by performing a method comprising;
locating a region of interest within the image data, wherein the region of interest corresponds to a location where the component is expected to be at least partially visible;
identifying a set of points in the image data corresponding to at least two edges of the component, wherein the identifying includes identifying a separation point between the component and at least one other component using the shadows in the image data; and
calculating a measurement for at least one attribute of the component using the set of points.
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Accused Products
Abstract
A solution for evaluating a component of a vehicle, such as a brake pad of a rail vehicle, is provided. An imaging component can acquire image data for a target area of the vehicle within which at least a portion of the component is visible. The target area can be illuminated by an illumination device that is, for example, horizontally offset from the imaging device to highlight the three-dimensional structure in the target area by creating shadows in the image data. A set of points corresponding to the component can be identified in the image data using the shadows. A measurement for at least one attribute of the component can be calculated from the set of points.
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Citations
17 Claims
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1. A system comprising:
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an imaging component including; a first imaging device configured to acquire image data for a target area of a vehicle; and a first illumination device configured to direct electromagnetic radiation on the target area, wherein the first illumination device is at least one of;
horizontally or vertically offset from the first imaging device to create shadows in the image data; anda computer system for evaluating a component at least partially visible in the target area using the image data by performing a method comprising; locating a region of interest within the image data, wherein the region of interest corresponds to a location where the component is expected to be at least partially visible; identifying a set of points in the image data corresponding to at least two edges of the component, wherein the identifying includes identifying a separation point between the component and at least one other component using the shadows in the image data; and calculating a measurement for at least one attribute of the component using the set of points. - View Dependent Claims (2, 3, 4, 5)
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6. A system comprising:
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an imaging component including; a first imaging device configured to acquire image data for a target area of a rail vehicle, wherein the target area includes at least a portion of a brake assembly of the rail vehicle; and a first illumination device configured to direct electromagnetic radiation on the target area, wherein the first illumination device is at least one of;
horizontally or vertically offset from the first imaging device to create shadows in the image data; anda computer system for evaluating the brake assembly using the image data by performing a method comprising; locating a region of interest within the image data, wherein the region of interest corresponds to a location where the brake assembly is expected to be at least partially visible; identifying a set of points in the image data corresponding to at least two edges of the brake assembly, wherein the identifying includes identifying a separation point between the brake assembly and at least one other component using the shadows in the image data; and calculating a measurement for at least one attribute of the brake assembly using the set of points. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A method comprising:
evaluating a brake assembly using image data for a target area of a rail vehicle, wherein the target area includes at least a portion of a brake assembly of the rail vehicle and includes shadows caused by the brake assembly, the evaluating including; locating a region of interest within the image data, wherein the region of interest corresponds to a location where the brake assembly is expected to be at least partially visible; identifying a set of points in the image data corresponding to at least two edges of the brake assembly, wherein the identifying includes identifying a separation point between the brake assembly and at least one other component using the shadows in the image data; and calculating a measurement for at least one attribute of the brake assembly using the set of points. - View Dependent Claims (14, 15, 16, 17)
Specification