Modelling of IR images of sky and clouds
نویسنده
چکیده
A phenomenon of thermal radiation of real objects is used in systems of automatic target recognition (ATR). To develop effective algorithms, it is essential to know both radiation characteristics of the detected objects and characteristics of their surroundings. The paper presents a method of numerical modeling of clouds radiation and their environment in IR range. Experimental data registered with short wavelength and long wavelength IR cameras were used. The experimental data were collected for characteristic temperature profiles of clouds and sky, for particular seasons of the year and metrological conditions occurring in Poland. To generate virtual images of sky and clouds in IR, IR Sky software has been developed. The images generated by means of this software were analyzed, having in view influence of radiation features of sky and clouds on a thermodetection process. High consistency of computer-generated images with the real ones (registered) thermal imagess has been obtained.
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