| Recent years, with the rapid development of computer, remote sensing, photogrammetry and some correlative technology, it is a reality that getting the information on the earth's surface fast and rebuilding the earth' s surface. 3D visualization of remote sensing images based on the three-dimensional data and images will simulate entironment more realistically and can be applied in wide field, so people draw attention to it more and more.With digital elevation model (DEM) expressing hypsography and image texture showing terrain, 3D visualization of remote sensing images reflects realistic images data onto DEM, and can overlay some special data such as human or natural information, even creats 3D virtual images according to certain scale and fight routes. Since 3D Visualization of Remote Sensing Images plays a important role in checking the plan of airport construction and improving the design quality, it has vital theory signification and pratical value that the study about the realized method. Through image processing, producing high-precision DEM, 3D Visualization of Remote Sensing Images in Yun-nan Teng-chong Tuofeng airport was created. This main content is listed as follows:(1)Image processing and information extracting.In this paper, the author make data fusion between Panchromatic Image ETM 8 and Multispectral Image ETM7, 4, 2 based on the fusion of pixels' coordinates: the method reserves raw image low-frequency information and spectrum information and strengthens image details, so it improves spatial resolution on a degree. Through remote sensing image digital processing , we made high accuracy remote sensing images, QuickBird ortho-images and image interpretion maps.(2)Establishent of DEM.The paper took the 1:50000 scale topographic in Yun-nan Teng-chong area and 1:2000 contour vector data based on the survey in Teng-chong Tuofeng airport region, set up the TIN applying STL, and made irregular DEM using Kring interpolation.(3)Precision analysis of DEM.
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