Infrared thermal image analysis device, infrared thermal image analysis method, and program
AssigneeFUJIFILM Corporation
InventorKimito Katsuyama
Life of this patent
Estimating the term…
Abstract
Provided are an infrared image analysis device, an infrared image analysis method, and a program capable of correctly reducing a temperature gradient. An infrared thermal image analysis device (10) includes a processor. The processor acquires a first infrared thermal image of a structure surface, which is obtained by capturing a structure (36) to be inspected, acquires region information (105) that distinguishes a region of the structure surface corresponding to the first infrared thermal image for at least one region, estimates a temperature gradient in the at least one region based on the region information (105) and a second infrared thermal image, and reduces an influence of the temperature gradient from the first infrared thermal image.
Claims21
An infrared thermal image analysis device comprising
- a processor configured to:
- acquire a first infrared thermal image of a structure surface, which is obtained by capturing a structure to be inspected;
- consider regions with different inclinations and/or discontinuities as different regions, or consider regions differing in at least one of color, roughness, unevenness, or presence/absence of solar radiation as different regions, on the structure surface where the first infrared thermal image has been captured;
- acquire region information that distinguishes each of the regions, for at least one region;
- acquire a second infrared thermal image of the structure surface, the second infrared thermal image captured so as to include the at least one region within an imaging range;
- estimate a temperature gradient in the at least one region based on the region information for the at least one region and the second infrared thermal image;
- and
- reduce an influence of the temperature gradient from the first infrared thermal image.
An infrared thermal image analysis method comprising:
- acquiring a first infrared thermal image of a structure surface, which is obtained by capturing a structure to be inspected;
- considering regions with different inclinations and/or discontinuities as different regions, or consider regions differing in at least one of color, roughness, unevenness, or presence/absence of solar radiation as different regions, on the structure surface where the first infrared thermal image has been captured;
- acquiring region information that distinguishes each of the regions, for at least one region;
- acquiring a second infrared thermal image of the structure surface, the second infrared thermal image captured so as to include the at least one region within an imaging range;
- estimating a temperature gradient in the at least one region based on the region information for the at least one region and the second infrared thermal image;
- and
- reducing an influence of the temperature gradient from the first infrared thermal image.
A non-transitory, computer-readable tangible recording medium which records thereon a program for causing, when read by a computer, the computer to execute:
- acquiring a first infrared thermal image of a structure surface, which is obtained by capturing a structure to be inspected;
- considering regions with different inclinations and/or discontinuities as different regions, or consider regions differing in at least one of color, roughness, unevenness, or presence/absence of solar radiation as different regions, on the structure surface where the first infrared thermal image has been captured;
- acquiring region information that distinguishes each of the regions, for at least one region;
- acquiring a second infrared thermal image of the structure surface, the second infrared thermal image captured so as to include the at least one region within an imaging range;
- estimating a temperature gradient in the at least one region based on the region information for the at least one region and the second infrared thermal image;
- and
- reducing an influence of the temperature gradient from the first infrared thermal image.
Dependencies are inferred from the claim text.