摘要
无人机倾斜摄影用于高位危岩体三维实景建模,在倒悬崖区域,模型易出现拉花、纹理模糊的缺陷,难以获得全方位的精细化岩体模型,从而无法进行多角度解译并准确判读出岩体分布、规模、产状等信息。为对高位危岩体进行真实、立体、精细化反映和表达,本文以某水利工程高位危岩体调查为例,采用无人机倾斜摄影融合贴近摄影的建模方法,对该岩体开展了三维实景建模的工作,并与倾斜摄影建模进行了对比分析。结果表明,相较于无人机倾斜摄影建模,融合了贴近摄影的模型纹理质量有了明显提升,且未出现拉花、模糊等缺陷,更全面、客观、准确地反映出了高位危岩体的实际情况,能够满足调查需求。
The UAV oblique photography is used for 3D real scene modeling of high unstable rock mass,the model in the area of inverted cliff is prone to appear the defects of stretch and fuzzy texture,and it is difficult to obtain a comprehensive refined rock mass model,so it is impossible to interpret from multiple angles and accurately interpret the rock mass distribution,scale,occurrence and other information.In order to reflect and express the high unstable rock mass realistically,stereoscopically and finely,this paper takes the survey of high unstable rock mass of a water conservancy project as an example,and adopts the modeling method of UAV oblique photography fusion nap-of-the-object photography to carry out the three-dimensional real scene modeling of the rock body,and makes a comparative analysis with the oblique photography modeling.The results show that compared with the UAV oblique photography modeling,the texture quality of the model that integrates the image data nap-of-the-object photography has been significantly improved,and there are no defects such as stretch,blur,etc.,which more comprehensively,objectively and accurately reflects the actual situation of the high unstable rock mass,and can meet the investigation requirements.
作者
张林杰
冯刚
龙超
饶维冬
黄筱
左强
熊豪
ZHANG Linjie;FENG Gang;LONG Chao;RAO Weidong;HUANGXiao;ZUO Qiang;XIONG Hao(Power China Guiyang Engineering Corporation Limited,Guiyang 550081,China)
出处
《水电与抽水蓄能》
2023年第S01期85-90,共6页
Hydropower and Pumped Storage
基金
中国电建集团贵阳勘测设计研究院有限公司科技重大项目“工程时空信息与协同设计关键技术研究”(YJZD2020-01)。
关键词
无人机
倾斜摄影
贴近摄影
融合建模
危岩体调查
unmanned aerial vehicle
oblique photography
napof-the-object-photography
fusion modeling
investigation of unstable rock mass
