| Summary: | 碩士 === 國立高雄應用科技大學 === 土木工程與防災科技研究所 === 98 === Abstract
Nowadays, using Airborne LiDAR technology to investigate forest is very popular. The 3D accurate data of terrain or plants are very important for the management of forestry and natural resources. The height and density of trees are also important. However, how to get those data is very difficult for traditional technology. Airborne LiDAR may overcome these problems. By LiDAR technology the ground area under tree-crown and height of tree can be simultaneously observed. Based on the response pulse of laser wave, by data processing and analyzing, the object can be proceeded category and filter. The ground DTM and vegetation parameters, such as height, density, diameter of tree and boundary of forest can be accurately estimated.
The purpose of this project is to use airborne LiDAR and infrared image to calculate and analyze the capacity of tree-crown in KuShan district, and to establish an accurate with easily manipulation method for monitoring the quality of greenbelt in urban area. For example, using supervised classification to analyze the vegetation, the rate of misjudgment is below 1 percentage. This method may hopefully provide a basis for monitoring the quantification of greenbelt quality in urban area. The method allows you to meet the following requirement.
1. Its accuracy can meet the current requirements of the greenbelt planning in urban area.
2. It can be used to estimate individual plant or total number of the capacity of tree-crown in urban area.
3. Using LiDAR to simulate 3D reality of tree-crown model.
4. Improving calculate method of the capacity of the single tree-crown.
5. It can be used to determine the capacity of tree-crown for monitoring the quality of greenbelt in urban area.
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