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http://dx.doi.org/10.7780/kjrs.2011.27.4.421

Road Extraction from High Resolution Satellite Image Using Object-based Road Model  

Byun, Young-Gi (Korea Aerospace Research Institute(KARI))
Han, You-Kyung (Department of Civil and Environmental Engineering, Seoul National University)
Chae, Tae-Byeong (Korea Aerospace Research Institute(KARI))
Publication Information
Korean Journal of Remote Sensing / v.27, no.4, 2011 , pp. 421-433 More about this Journal
Abstract
The importance of acquisition of road information has recently been increased with a rapid growth of spatial-related services such as urban information system and location based service. This paper proposes an automatic road extraction method using object-based approach which was issued alternative of pixel-based method recently. Firstly, the spatial objects were created by MSRS(Modified Seeded Region Growing) method, and then the key road objects were extracted by using properties of objects such as their shape feature information and adjacency. The omitted road objects were also traced considering spatial correlation between extracted road and their neighboring objects. In the end, the final road region was extracted by connecting discontinuous road sections and improving road surfaces through their geometric properties. To assess the proposed method, quantitative analysis was carried out. From the experiments, the proposed method generally showed high road detection accuracy and had a great potential for the road extraction from high resolution satellite images.
Keywords
Road extraction; Object-based approach; Shape feature; Spatial correlation; High resolution satellite image;
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Times Cited By KSCI : 3  (Citation Analysis)
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