Proceedings of the KSRS Conference (대한원격탐사학회:학술대회논문집)
- 2002.10a
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- Pages.59-64
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- 2002
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- 1226-9743(pISSN)
Image segmentation and line segment extraction for 3-d building reconstruction
- Ye, Chul-Soo (Spatial Imagery Information Research Team, Spatial Information Technology Center, ETRI- Computer & Software Research Laboratory) ;
- Kim, Kyoung-Ok (Spatial Imagery Information Research Team, Spatial Information Technology Center, ETRI- Computer & Software Research Laboratory) ;
- Lee, Jong-Hun (Spatial Imagery Information Research Team, Spatial Information Technology Center, ETRI- Computer & Software Research Laboratory) ;
- Lee, Kwae-Hi (Dept. of Electronic Engineering, Sogang University)
- Published : 2002.10.01
Abstract
This paper presents a method for line segment extraction for 3-d building reconstruction. Building roofs are described as a set of planar polygonal patches, each of which is extracted by watershed-based image segmentation, line segment matching and coplanar grouping. Coplanar grouping and polygonal patch formation are performed per region by selecting 3-d line segments that are matched using epipolar geometry and flight information. The algorithm has been applied to high resolution aerial images and the results show accurate 3-d building reconstruction.