Current applications of aircraft technology wireless driver (UAV: Unmanned Aerial Vehicle) is more prevalent because u av a small aircraft, the cost price is not very high. Has the value of accurate ground control points (GCP Ground Control Point:) and more accurate information, the photos are high quality. In this edition of the research, researchers are interested in bringing u av application in the field of urban exploration to find the density of the buildings, the area district. In the city centre, the area district, Khon Kaen. In this case I used a ratio analysis the total building area per area (Floor Area Ratio: FAR) and the ratio of building area covers an area of land plot at a building. (Building Coverage Rario: BCR) example of study to choose from concentrations in building area 1 km radius area most dense. By the size of the building space will be analyzed within the bounds of the area road network 1 block when we fly, we photograph the data processed by the program Agrisoft the Photoscan point height surfaces (Digital surface model: DSM) and khlaophoi point (Point Cloud) to create.Bopchamlong three dimensional urban density data display by using the program to find the height of the CityEngine in buildings and the number of blogs all in the study area boundaries, the result of processing include aerial photos, map (Orthophoto) a data model point height surfaces (Digital surf.Ace model: DSM) khlaophoi point (Point Cloud) and 3D model images. These data allow us to create maps showing the density of use and can be applied in finding the density in other areas as well. Because the information is save both time and budget, there is also a high accuracy, but the limitations of this research need to do testing with the height of the buildings in the area with the.
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