Infrared Data-Based Object Evaluation

• US 20140136047A1
• Filed: 01/22/2014
• Published: 05/15/2014
• Est. Priority Date: 10/27/2006
• Status: Active Grant

• Current Assignee: International Electronic Machines Corp.
• Original Assignee: International Electronic Machines Corp.
• Inventors: Mian, Zahid F., Foss, Robert W.
• Granted Patent: US 8,868,291 B2
• Time in Patent Office: Days
• US Class Current: 701/29.1
• CPC Class Codes: G01J 2005/0033 Wheel
• CPC Class Codes: G01J 2005/0077 Imaging
• CPC Class Codes: G01J 5/0022 for sensing the radiation of moving bodies
• CPC Class Codes: G01J 5/20 using resistors, thermistors or semiconductors sensitive to radiation, e.g. photoconductive devices
• CPC Class Codes: G01M 17/007 Wheeled or endless-tracked vehicles G01M17/08 takes precedence
• CPC Class Codes: G01M 17/013 Wheels
• CPC Class Codes: G01N 21/88 Investigating the presence of flaws or contamination
• CPC Class Codes: G07C 5/00 Registering or indicating the working of vehicles

Abstract

A solution for evaluating an object using infrared data is provided. In particular, infrared data corresponding to the object is processed to enhance a set of signal features. The infrared data is analyzed to determine whether one or more anomalies are present.

Claims

1. A method of evaluating an object for a heat related anomaly, the method comprising:

processing, by a computer system including at least one computing device, infrared data corresponding to at least one side of the object to enhance a set of signal features in the infrared data and extract infrared data corresponding to at least a portion of the object from the infrared data, wherein the processing uses at least one enhancement process selected from a group of enhancement processes based on the at least one heat related anomaly, the group of enhancement processes including;

segmentation, fusion of multiple infrared images in the infrared data, edge detection within an infrared image in the infrared data, applying thresholding to assign a pixel in the infrared data to white or black, and feature detection of the at least a portion of the object in the infrared data;

analyzing the infrared data to determine a presence of the at least one heat related anomaly; and

providing a result of the analyzing for use in an evaluation of the object.

2. The method of claim 1, further comprising obtaining evaluation data, wherein the evaluation data includes the infrared data and at least one type of non-infrared based data corresponding to the object, wherein at least one of the processing or analyzing further uses the at least one type of non-infrared based data.

3. The method of claim 1, further comprising obtaining evaluation data, the obtaining evaluation data including:

acquiring a first infrared image for a first side of the object using a first infrared device having a first field of view; and

acquiring a second infrared image for a second side of the object using a second infrared device having a second field of view, wherein the first and second fields of view are configured to facilitate identifying a location of an element visible in both the first and second infrared images.

4. The method of claim 1, the analyzing including examining a portion of each of a plurality of infrared images that includes a component of the object subject to heating during use of the component.

5. The method of claim 4, the examining including comparing a brightness of a portion of the component with an expected brightness.

6. The method of claim 1, further comprising obtaining the infrared data using a set of infrared devices, wherein the object is a component of a vehicle.

7. The method of claim 6, wherein at least one of the set of infrared devices is located off of the vehicle.

8. The method of claim 1, further comprising pre-processing the infrared data prior to the processing, wherein the pre-processing includes at least one of:

applying an image deblurring algorithm to at least a portion of the infrared data or filtering at least a portion of the infrared data.

9. A system comprising:

a computer system configured to evaluate an object for at least one heat related anomaly, the computer system including at least one computing device for performing a method comprising;

processing infrared data corresponding to at least one side of the object to enhance a set of signal features in the infrared data and extract infrared data corresponding to at least a portion of the object from the infrared data, wherein the processing uses at least one enhancement process selected from a group of enhancement processes based on the at least one heat related anomaly, the group of enhancement processes including;

segmentation, fusion of multiple infrared images in the infrared data, edge detection within an infrared image in the infrared data, applying thresholding to assign a pixel in the infrared data to white or black, and feature detection of the at least a portion of the object in the infrared data;

analyzing the infrared data to determine a presence of the at least one heat related anomaly; and

providing a result of the analyzing for use in an evaluation of the object.

10. The system of claim 9, further comprising a set of infrared devices configured to acquire the infrared data.

11. The system of claim 10, wherein the infrared data is acquired during a single pass of the object, the method further comprising:

automatically detecting a presence of the object; and

automatically obtaining evaluation data in response to the detected presence, wherein the evaluation data includes the infrared data.

12. The system of claim 10, further comprising an imaging device configured to acquire visible image data of the object, wherein at least one of the processing or analyzing further uses the visible image data.

13. The system of claim 10, wherein the set of infrared devices includes:

a first infrared device configured to acquire a first infrared image having a first field of view for a first side of the object; and

a second infrared device configured to acquire a second infrared image having a second field of view for a second side of the object, wherein the first and second fields of view are configured to facilitate identifying a location of an element visible in both the first and second infrared images.

14. The system of claim 10, wherein the object is a component of a vehicle.

15. The system of claim 14, wherein at least one of the set of infrared devices is located off of the vehicle.

16. The system of claim 9, the analyzing including examining a portion of each of a plurality of infrared images that includes a component of the object subject to heating during use of the component.

17. The system of claim 16, the examining including comparing a brightness of a portion of the component with an expected brightness.

18. A system comprising:

a set of infrared imaging devices configured to acquire infrared data of an object during operation of the object; and

a computer system configured to evaluate the object for at least one heat related anomaly, the computer system including at least one computing device for performing a method comprising;

pre-processing infrared data corresponding to at least one side of the object, wherein the pre-processing includes at least one of;

applying an image deblurring algorithm to at least a portion of the infrared data or filtering at least a portion of the infrared data;

processing the pre-processed infrared data to enhance a set of signal features in the pre-processed infrared data and extract infrared data corresponding to at least a portion of the object from the pre-processed infrared data, wherein the processing uses at least one enhancement process selected from a group of enhancement processes based on the at least one heat related anomaly, the group of enhancement processes including;

segmentation, fusion of multiple infrared images in the infrared data, edge detection within an infrared image in the infrared data, applying thresholding to assign a pixel in the infrared data to white or black, and feature detection of the at least a portion of the object in the infrared data;

analyzing the processed infrared data to determine a presence of the at least one heat related anomaly; and

providing a result of the analyzing for use in an evaluation of the object.

19. The system of claim 18, wherein the object is a component of a vehicle, the at least one anomaly including at least one of:

a brake anomaly, a bearing anomaly, or a wheel anomaly.

20. The system of claim 19, wherein at least one of the set of infrared devices is located off of the vehicle.