Research of extraction of target roughness and its reliability from randomly non-probabilistic data
Zhang Gong-ping · Computer Engineering and Applications Journal · 2012
According to the problem that the elevation data does not reflect the slope and surface roughness of target topography,the preprocessing of topographic elevation data and extraction algorithm of topographic feature are proposed,and the corresponding extraction of topographic feature is done.The innovation is that it is the first time that the bilinear interpolation algorithm is applied in preprocess of elevation data and extraction of topographic feature,as well as the mathematical model is established.By simulation and checking calculation of a certain digital topography example,it is proved that the extraction method of topographic information based on elevation data is feasible and reliable.It provides a new research approach for target information recognition and topography risk assessment accurately.