Patent ID: 7887234

Claim:
A method for temperature estimation of a surface of a body, comprising: receiving an image of the body with a sensor; providing the image to a processor to remove sensor specific non-uniformities to create a corrected image having a plurality of pixels from the image, each of the plurality of pixels having a pixel value; transforming the pixel value for each of the plurality of pixels in the corrected image into an estimated temperature value by using a polynomial function of pixel values; correcting the estimated temperature value for each of the plurality of pixels using a model expressed by: E = ∫ λ = λ 1 λ = λ 2 ⁢ S ⁡ ( λ ) ⁢ ɛ ⁡ ( λ ) ⁢ B ⁡ ( T , λ ) ⁢ ⅆ λ + ∫ λ = λ 1 λ = λ 2 ⁢ S ⁡ ( λ ) ⁢ ( 1 - ɛ ⁡ ( λ ) ) ⁢ g ⁢ ⁢ ɛ ⁡ ( λ ) 1 - g ⁡ ( 1 - ɛ ⁡ ( λ ) ) ⁢ B ⁡ ( T 0 , λ ) ⁢ ⅆ λ , wherein E represents a radiation, λ represents a wavelength of radiation received by a sensor element of the sensor, S represents a spectral sensitivity, B represents a Planck law spectral radiance and g is a geometry factor; and displaying the estimated temperature value for each of the plurality of pixels.