3D Digital Image Mapping of the Terrain UsingAirborne Laser Scanning Data, Aerial Photos and 2D Digital Maps

LeeJaebin; 배환성; Yu,   Kiyun

doi:10.15793/kspr.2007.52..011

The development of the digital mapping techniques, computing devices and internet services has fostered a growing interest in 3D digital mapping of the terrain. Especially, a 3D digital image map can be helpful in that it offers the reality and solidity of the terrain. In this paper, a step-by-step algorithm was presented to create a 3D digital image map using ALS data, aerial photos and 2D digital maps. First, discrepancies in ALS data strips were detected and adjusted. Second, to represent ALS data, aerial photos and 2D digital maps in a common reference frame, they were co-registered using linear features. Then, with co-registered dataset, the ortho-photo was generated. Finally, the 3D digital image map was created by overlapping the ortho-photo, 2D digital maps and DEM generated from ALS data. The results clearly demonstrate that the proposed algorithm is effective in 3D digital image mapping of the terrain. Future research will focus on the automation of the proposed algorithm, including tasks such as extracting linear features from dataset and matching these features. In addition, it is important to represent 3D objects such as buildings, roads and etc, on the 3D digital image map.

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* 2021년 이후 발행 논문의 참고문헌은 현재 구축 중입니다.

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