Patent ID: 6075903
Filing Date: 2000-06-13
Classification: H04N

Abstract:
Process to correct the intensity of images from a digital infrared camera with a two-dimensional detector, wherein correction coefficients K are stored for each image point j in the memory of an image processing system. There are the following steps to the process:Recording the intensity Uj of an image;Correcting the intensity Uj of the image, using correction coefficients K and temporary storage of the corrected intensity Ukj;Filtering the corrected intensity Ukj with a locally active adaptive filter M;Determining the remaining imaging error ej, using intensity Ukj of the unfiltered corrected image and intensity F(Ukj) of the filtered, corrected image;Improving all correction coefficients K, using the ascertained, remaining imaging error ej;Storing improved correction coefficients K in the memory of the image processing system.