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An algorithm of imaging simulation of fog with different visibility basing on single image input was proposed. It includes three steps: (1) the defocus map is obtained firstly from the single image input, and then converted to the depth map according to the theory of lens imaging; (2) the depth map is converted into a transmittance map by using a correlation equation; (3) the fog simulation image...
This paper uses back propagation (BP) neural network to modify manual observing system data to automatic observing system data in wind speed data. First, we prepare six factors which are wind speed data six hours ahead to one hour ahead as input data. The tests indict when these factors selected, the modify results are better than others. The training data used for the neural network is the data from...
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