期刊名称：International Journal of Energy and Environment
印刷版ISSN：2076-2895
电子版ISSN：2076-2909
出版年度：2015
卷号：6
期号：4
页码：403-410
出版社：International Energy and Environment Foundation (IEEF)
摘要：In this paper, different mathematical models 3D case are investigated and comprised in order to assess the accuracy of these models under different conditions of terrain topography depend on Geomatics methods. Three high resolution satellite QuickBird images (panchromatic 0.6 m in spatial resolution) of three different study areas, with respect to their topography (a flat area, a hilly area and a mountain area) in Iraq have been used in this work. The flat area is chosen in Baghdad in the middle of Iraq while, the hilly and mountain areas are chosen in Irbil in the north of Iraq. The 3D mathematical models which were used, 1st, 2nd order 3D polynomial, and direct linear transformation model. All these methods are applied for each study area and evaluated through the Matlab environment facilities. The results of 3D models in the three studied areas indicate that the best accuracy is achieved with 2nd order 3D polynomial and DLT models while the worst accuracy is obtained with 1st order 3D polynomial model. Therefore, in the case of using 3D models, the 2nd order 3D polynomial and DLT models is recommended to achieve high geometric accuracy.
关键词：Geometrics methods; 3D polynomial model; Direct linear transformation model
