드론을 활용한 지하시설물 측량 품질 평가

다국어 초록 (Multilingual Abstract)

Drone can quickly generate orthoimages, DSMs(Digital Surface Models), and point clouds at low cost using structure from motion and various image processing methods, and research has therefore been conducted on surveying and analysis using drones in various fields, such as construction, environment, remote sensing, disaster monitoring, 3D modeling, digital photogrammetry and building information management. However, surveying of underground facilities has continued by traditional surveying methods due to environmental constraints. In this study, an underground facility map was generated using point clouds and orthogonal image acquired using drone, and its absolute and relative quality was evaluated; the map was also compared with one created using a network RTK(Real-Time Kinematic) survey method. Although there was a difference in absolute accuracy, the map was sufficiently accurate to replace the one generated by the network RTK survey method.

목차 (Table of Contents)

• Ⅰ. 서 론 1
• 1.1 연구의 배경 및 목적 1
• 1.2 국내⋅외 연구동향 3
• 1.3 연구 방법 및 범위 5
• Ⅱ. 배경 이론 7
• 2.1 드론 사진측량 자료처리 7
• 2.2 지하시설물측량 16
• Ⅲ. 드론을 이용한 지하시설물 측량 21
• 3.1 대상지역 선정 및 촬영 21
• 3.2 촬영계획 수립 23
• 3.3 정사영상 및 점군자료 취득 25
• 3.4 정확도 평가를 위한 지하시설물도 제작 35
• Ⅳ. 적용 및 평가 38
• 4.1 점군자료와 현장측량 결과의 비교 38
• 4.2 지하시설물도의 정확도 분석 44
• Ⅴ. 결 론 48
• 참고문헌 49