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基于无人机摄影测量技术的三维建模研究* —— 东江森林公园高精度三维建模研究及应用
---基于无人机倾斜摄影技术分析黎新宇,莫基琳
广东省东江林场,广州地理研究所
摘要:
为提高森林景观三维模拟的真实性和实用性,为林区精细化巡查、景观规划和森林经营管理 提供可靠依据,以广东省东江森林公园为例,基于无人机低空倾斜摄影测量高精度、高分辨率、灵活性 强和不受复杂地形影响等特点,将无人机低空摄影测量系统应用到森林资源精准调查。文章阐述了垂直 起降固定翼无人机的运用和DEM、DOM 及三维真实空间场景的制作方法,实现对45 km2 大范围公园的 三维真实场景重建。实践结果表明:(1)同常规的遥感调查方法相比,该方法不仅能够获取更高分辨率 和更高精度的林区调查基础数据,而且还提高了其时效性及可靠性;(2)构建的森林公园三维真实空间 场景突破了传统的二维解译技术,提高了森林公园环境解译的精确度及准确度。
关键词:  固定翼无人机  三维模型  东江林场
DOI:
分类号:
基金项目:
Three-Dimensional Modeling Research Based on UAV Photogrammetry Technology——High-precision 3D Modeling Research and Application of Dongjiang Forest Park
Li Xinyu and mojilin
Guangdong Dongjiang Forest Field,guangzhoudiliyanjiushuo
Abstract:
This paper not only aims to improve the authenticity and practicability of the three-dimensional simulation of forest landscape,but also provides a reliable basis for the detailed inspection, landscape planning and forest management of forest.The paper takes the application in the Dongjiang forest park as an example.It uses unmanned aerial vehicle based low-altitude photographic system.The system can obtain high-precision, highresolution and high-altitude remote sensing images and has the advantage of flexibility and freedom from complex topography.This paper applies the system to the forest resources fine survey.The paper describes the application of vertical take-off and landing fixed-wing UAV and the method of DEM,DOM and three-dimensional real space scene.It realizes the reconstruction of the 45 km2 large-scale park""s three-dimensional real scenet.The practice results show that:(1) compared with the conventional remote sensing investigation method,this method not only obtains higher-resolution and higherprecision basic data for forest area survey,but also improves its efficacy and reliability; (2) three-dimensional real space scene of the forest park breaks through the traditional two-dimensional interpretation method,improves the precision and accuracy of the forest park.
Key words:  fixed wing UAV  3d model  Dongjiang forest field