APP下载

应用倾斜摄影测量技术的规划竣工测量流程和精度分析

2021-03-05王永辰

科技创新导报 2021年27期

王永辰

摘要:倾斜摄影测量技术是近年来测绘领域发展起来的高新技术之一。本文结合低空无人机倾斜摄影技术,进行北京房山某小区竣工测量测绘,获取了高精度三维模型,并对无人机倾斜摄影测量成果进行平面测量误差、高程测量误差和间距测量误差精度验证,结果表明,测绘精度达到了竣工测量的主要技术指标要求,为建设项目验收“最多跑一次”提供了先进的技术手段。

关键词:倾斜摄影测量 规划竣工测量 精度 误差

Process and Accuracy Analysis of Planning Completion Survey Based on Tilt Photogrammetry

WANG Yongchen

(State Owned Land Secondary Market Transaction Service Center of Fangshan District, Beijing, 102488 China)

Abstract: Tilt photogrammetry is one of the high and new technologies in the field of surveying and mapping in recent years. In this paper, combined with the low altitude UAV tilt photogrammetry technology, the completion survey of a residential area in Fangshan, Beijing is carried out, and the high-precision three-dimensional model is obtained. The plane measurement error, elevation measurement error and spacing measurement error accuracy of the UAV tilt photogrammetry results are verified. The results show that the mapping accuracy meets the main technical index requirements of the completion survey. It has provided advanced technical means for "run at most once" of construction project acceptance.

Key Words: Tilt photogrammetry; Planning completion survey, Accuracy; Error

随着低空无人机测绘技术的发展,越来越多的测绘地理信息工程采用无人机测绘,大大提高了测图效率,节省了大量的人力物力。作为一种新的测绘技术手段,无人机测绘在传统测绘领域已得到了广泛的应用,其精度基本满足规范要求,尤其是在大面积困难复杂地区地形图测绘中,能充分发挥其快速高效的测图优势,因此成为测绘领域研究的焦点之一[1]。近年来随着技术研究的进展,出现了低空无人机倾斜摄影技术( UAV Oblique Photography Technique,UAVOPT) ,它是利用低空无人机平台搭载 5 组传感器镜头,分别从一个垂直、4 个倾斜角度同时获取高分辨率影像的一种测量方法,其优点是具有快速成像和数据自动化处理能力,可实现单张影像量测。由于无人机倾斜摄影测量具有超高数据处理效率和纹理信息,目前在测绘各领域均有广泛应用,如常规地形测量、不动产测量、数字三维校园、规划竣工测量等[2]。本文结合低空无人机倾斜摄影技术,进行北京房山某小区竣工测量测绘,获取了高精度三维模型,为建设项目验收“最多跑一次”提供了先进的技术手段。……

登录APP查看全文