Abstract
Abstract. 3D visualization is a tool that supports geospatial analysis through the application of scientific information. It enhances the quality of standard photography and can be used in many applications. Through this study, a 3D mangrove tree model is generated, as assisted by a tree crown derived from UAV images. The researchers explored different platforms namely: MeshLab, SketchUp (with 3D Tree Maker extension), and Clara.io, to come up with a more realistic three-dimensional (3D) model of a mangrove tree. From an Unmanned Aerial Vehicle (UAV) derived Digital Surface Model (DSM), an isolated tree crown was selected which was then used as an assisting tool in creating the final 3D mangrove tree model. A default tree object was modified according to the characteristics as described by the DSM. Additional branches and leaves were added to the existing tree object, and its shape was modified to conform to the tree crown. The resulting model may be used to more accurately depict objects in the area to be visualized, however an automation procedure is recommended for an easier and more effective generation of multiple tree models expected in an area.
Highlights
1.1 Background of the StudyThrough the fast-improving technology, comes various techniques in generating 3D scenes for visualization as well as individual 3D modes incorporated in each scene
This study shows a step-by-step procedure in generating a 3D model of a mangrove tree assisted by a tree crown derived from Unmanned Aerial Vehicle (UAV) images
The researchers were able to create a more improved 3D mangrove tree model compared to a built-in model generated by a software
Summary
Through the fast-improving technology, comes various techniques in generating 3D scenes for visualization as well as individual 3D modes incorporated in each scene. This study integrates two free desktop software programs- MeshLab and SketchUp Make with 3D Tree Maker extension, and an online application, Clara.io, to generate a 3D model of a mangrove tree, following its crown derived from a drone survey. In this way, a mangrove tree can be well represented for visualization purposes since the model better replicates the shape and form of the actual tree compared to a built-in model from a specific software. This study will be a good basis for visualization of an entire mangrove forest, once extended
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