摘要
为了实现对三维地形的辅助准确测量,提出基于微型无人机航测的三维地形辅助测量方法。采用地形网格间距的自适应网格匹配方法构建三维地形微型无人机航测遥感图像采集模型,对采集的三维地形微型无人机航测遥感图像采用匹配滤波器实现自适应滤波检测,提取遥感图像的高精度地形特征量,通过三维地形数据加载和程序交叉编译控制方法,实现对三维地形微型无人机航测遥感信息加载和大数据融合处理。根据每个窗口采用灰色不变矩实现特征加权,得到三维地形微型无人机测量输出。仿真测试结果表明,采用该方法进行三维地形辅助测量的准确性较高,测量精度较好,提高了地形模型建模的几何精度。
In order to realize the auxiliary and accurate measurement of 3 D terrain, a 3 D terrain aided survey method based on micro UAV aerial survey is proposed.A 3 D terrain micro UAV aerial survey remote sensing image acquisition model is constructed by using the adaptive grid matching method of terrain grid spacing.The adaptive filtering detection of the collected 3 D terrain micro UAV aerial survey remote sensing image is realized by using the matching filter, and the high-precision terrain features of the remote sensing image are extracted, and the control method of three-dimensional terrain data loading and program cross compilation control is implemented The remote sensing information loading and big data fusion processing of three-dimensional terrain micro UAV aerial survey are carried out.According to each window, gray moment invariants are used to realize feature weighting, and the measurement output of 3 D terrain micro UAV is obtained.The simulation test results show that the accuracy of 3 D terrain aided survey using this method is higher, the measurement accuracy is better, and the geometric accuracy of terrain model modeling is improved.
作者
刘强
LIU Qiang(Chengdu Vocational and Technical College of Industry,Chengdu Sichuan 610218,China)
出处
《自动化与仪器仪表》
2021年第5期29-31,35,共4页
Automation & Instrumentation
基金
教育部留学基金委:职业院校教师公派留学(项目编号:留金项[2019]60号)。
关键词
微型无人机
遥感信息
三维地形
辅助测量
滤波检测
地形建模
micro drone
remote sensing information
three-dimensional terrain
auxiliary measurement
filter detection
terrain modeling
