Study On Application Of 3D Visualization Of UAV Tilt Photography System

The UAV 3D visualization technology is a new technology, and the birth of it brings the world into the era of true 3D. UAV to get the data with the character of rapid, high-definition, flexible and multiple perspectives, not only makes up the defect of the satellite remote sensing technology to get the data, but also gets the information from multiple perspectives to build 3D model with ample data source. UAV 3D results with the advantages of strong authenticity, intuitive 3D get the vast number of users of all ages, but the complex of production process, the lack of routine use of function, cannot achieve the monomer and other factors hinder the development of their own. Therefore, improving outcomes generated 3D UAV intelligence, reducing investment costs and improving the value of technology in various fields to promote the application is the current urgent problem.Combining with the domestic and foreign research results, this paper explores the 3D visualization technology of UAV, and puts forward the solution to the problem. Firstly, the application of UAV oblique photography get the texture information of the multiple perspectives in the study area, and introduction of the new platform fully automated by aerial triangulation, encryption point cloud, 3D reconstruction fast data processing generate a realistic 3D models and high-resolution the DOM, DSM. Secondly, the use of object-oriented classification method to extract the UAV visible on the type of information DOM. Using the sample library custom VDVI, VDWI, VDSI, VSI characteristics, based on the spectral DSM and images, textures, shapes, and other custom features build and complete the classification task classification rules. Classification accuracy to extract such information was 93.287%, Kappa coefficient as high as 0.900, meet the requirements. Extraction of information classification accuracy of 93.287%, and Kappa coefficient is as high as 0.900 which meet the requirement. Again, choosing the kriging, inverse distance weighting, natural adjacent three interpolation method calculate DEM, after precision analysis we found kriging interpolation method to calculate the results of the optimal precision, and the method of using DSM value and DEM subtraction calculate building height value. After statistics we found that the height value of root mean square error is 1.176 m. Finally, according to highly value we batch convert completed 2D class information into 2.5D information, then take it and UAV 3D model superposition and build drones realistic 3D application model, outlines the advantage of the model and use value, analyzes the feasibility and the prospects of its application.By 2.5D vector information and 3D model to build the 3D application model, it has realized the 3D model of virtual monomer, and strengthened the function of use, such as roaming, attribute query, geographic location, place names show, view pictures, add 3D models, etc. UAV 3D results not only with manually create 3D models not only have the same application function, and update speed, but also the model is more beautiful, true and complete.In summary, the results of the research breaks through the past 3D human-computer results only roaming function, changes the high input and low output of the situation, improves the production results of UAV intelligence, shortens the production time, enhances the aesthetics of the results and intuitive. The art method which this paper studies is not only effective solution to the current problems, but also has a reference to the study of UAV technology and object-oriented classification method has a reference. 3D results of UAV promote their own development and broaden the application field by virtue of the unique advantages. With the continuous development of technology, it will has application prospect in UAV 3D city map, tourism development, the mine environmental monitoring, agriculture and forestry resources monitoring, disaster emergency rescue, oil day natural gas exploration has application prospect. The intelligence of technical methods and the practicality of the results will make it become one of the best choices in the field of high technology...