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3차원 모델링을 위한 라이다 데이터로부터 특징점 추출 방법
Key Point Extraction from LiDAR Data for 3D Modeling 원문보기

한국측량학회지 = Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, v.34 no.5, 2016년, pp.479 - 493  

이대건 (Department of Geoinformation Engineering, Sejong University) ,  이동천 (Department of Geoinformation Engineering, Sejong University)

초록
AI-Helper 아이콘AI-Helper

항공 레이저 스캐너(ALS)로부터 획득한 라이다(LiDAR) 데이터는 지형지물을 모델링하기 위해서 널리 사용되고 있으며, 특히 정밀 3차원 건축물 및 도시모델, 엄밀정사영상 등 고품질의 공간정보를 효율적으로 구축하기 위하여 라이다 데이터를 이용한 3차원 모델링에 관한 연구가 지속적으로 수행되고 있다. 불규칙적으로 분포된 고밀도의 라이다 데이터로부터 객체를 3차원으로 모델링하기 위해서는 시스템 캘리브레이션, 노이즈 제거 및 지면과 객체를 분리하기 위한 필터링, 객체의 종류 및 특성에 따른 데이터 분류, 기하학적 특성 및 동질성에 기반한 데이터 분할, 분할면의 군집화 및 묘사, 분할면의 재구성과 조합에 의한 모델링, 품질검사 등 일련의 복잡한 과정들이 수반된다. 라이다 데이터를 이용한 많은 모델링 방법들은 데이터 분할 과정을 포함하고 있지만, 본 논문에서는 라이다 데이터를 분할하지 않고 객체를 구성하는 중요하고 대표적인 특징점들을 추출하여 건물 모델링에 활용하는 방법을 제안하고 있다. 복잡하고 다양한 건물 형태를 시뮬레이션한 데이터와 실제 데이터에 적용하여 제안한 방법의 타당성 및 정확도를 검증하였다.

Abstract ▼ AI-Helper 아이콘AI-Helper

LiDAR(Light Detection and Ranging) data acquired from ALS(Airborne Laser Scanner) has been intensively utilized to reconstruct object models. Especially, researches for 3D modeling from LiDAR data have been performed to establish high quality spatial information such as precise 3D city models and tr...

주제어

#라이다   #특징점   #모서리 추출   #3차원 객체 모델링   #정확도 산정  

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