Patent Document ID: 5414466
Application ID: 08013205
Patent Status: 1

Claim One:
1. A method for the correction of striping in a thermal image wherein the striping defect results from the analysis of said image and in the bands of a plurality of lines, now number, by means of a matrix sensor and prompts the appearance, on said image, of zones wherein, at each pixel, the luminance values due to the defect superimposed on the luminance values of said image, all of these zones comprising a striped space, wherein said method comprises the steps of: converting a thermal image into electrical signals by employing a matrix thermal sensor;. storing in a memory numerical values indicative of an image received from said matrix thermal sensor; determining from said stored values, contained in said memory, of the image containing said striped space, an identification of the luminance value of the striping; with the taking of values by a global polynomial functions of a vector space of functions generated by a base of decorrelated and normed functions of said stored values of said image; modelizing the striping in said space of polynomials, by determining the coefficients of distribution of the striping of each function of the base from the luminance values of the stored image and from the values of each of the functions of said base; synthesizing the striping by determining luminance values of the striping from the coefficients of correlation and from the values of the functions of said base by said processor; subtracting the synthesized striping from the initial image by subtracting the synthesized striping from the luminance values of the initial image; and outputting a video signal indicative of the corrected video image for further display.