基于无人机遥感影像的三维森林景观可视化

Three-Dimensional Visualization of Forest Landscape Based on UAV Remote Sensing Images

无人机遥感是新近发展起来的一种先进的遥感方式,具有快速响应、机动灵活、影像分辨率高等特点。采用无人机对研究区森林进行航拍,探讨利用无人机影像提取DEM的技术方法,并对提取的DEM进行精度检验,然后在提取的DEM上叠加获得的高分辨无人机影像,独立实现了对研究区森林景观的三维可视化,结果表明利用无人机影像提取的DEM精度较高,生成的三维森林景观真实感强,能很好的展现森林的生态、文化、美学价值。

UAV remote sensing is a newly developed state-of-the-art remote sensing with fast response, flexible and high image resolution. We used images from UAV aerial to explore the technical methods of extracting DEM in the study forest area. After extracting DEM, the precision was tested. Then, we used the high-resolution UAV images to overlay on the extracted DEM, and separately accomplish the visualization of three-dimensional forest landscape. The precision of extracted DEM is high, and the three-dimensional forest landscape is with high sense reality. Therefore, UAV remote sensing is a good way to display the ecological, cuhural and aesthetic values of forest.