Oblique aerial photography technology and its application to geological survey:A case study of Wuxia section in the Three Gorges reservoir
CHEN Jie1,2(), CAI Jun3, LI Jing1, HE Peng1
1. China Aero Geophysical Survey & Remote Sensing Center for Natural Resources,Beijing 100083, China 2. Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China 3. Beijing Institute of Surveying and Mapping, Beijing 100038, China
三峡库区巫峡段是滑坡和危岩崩塌的易发与多发地段,严重危及长江航道安全。倾斜航空摄影技术能精细刻画观测物的侧面纹理信息,为地质灾害隐患早期识别提供基础数据。文章在阐述和分析倾斜航空摄影技术的基础上,联合获取的倾斜航空影像、机载定位定姿系统(position and orientation system,POS)数据和地面控制点进行了三维模型制作,以地质、地貌、水文等因子建立地质灾害危险性评价模型,通过室内解译和野外调查基本查明了工作区内新发地质灾害发育情况及分布规律,摸清了各区域内控制地质灾害发生的主要因素,掌握了区内地质灾害易发性特征及灾害隐患情况。
The Wuxia section of the Three Gorges reservoir area is an area where landslides and dangerous rock collapses easily and frequently occur, which seriously endangers the safety of the Yangtze River channel. The oblique aerial photography technology can accurately describe the side texture information of the observed objects and provide basic data for the early identification of hidden dangers of geological hazards. In this paper, based on the elaboration and analysis of oblique aerial photography technology, the authors constructed three-dimensional models based on the acquired oblique aerial images, airborne position and orientation system (POS) data and ground control points, and established a geological hazard risk assessment model based on factors such as geology, geomorphology and hydrology. The development and distribution of new geological disasters in the work area were clarified, the main factors controlling the occurrence of geological disasters in each area were figured out, and the geological disasters susceptibility characteristics and hidden dangers in the area were grasped, thus the application potential of oblique aerial photography technology in geological survey was demonstrated.
陈洁, 蔡君, 李京, 贺鹏. 倾斜航空摄影技术及在地质调查中的应用研究——以三峡库区巫峡地区为例[J]. 国土资源遥感, 2021, 33(1): 167-173.
CHEN Jie, CAI Jun, LI Jing, HE Peng. Oblique aerial photography technology and its application to geological survey:A case study of Wuxia section in the Three Gorges reservoir. Remote Sensing for Land & Resources, 2021, 33(1): 167-173.
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2021, Vol. 33 
), 蔡君3, 李京1, 贺鹏1
